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Meet the Team 

Enabling our clients’ sustainability journeys through our software and services is our brand promise. To deliver on this commitment, Greenstone has a team of specialists that take an active interest in our clients’ ambitions and ensure that our solutions and services enable their success.

Our consultants provide our clients with unlimited support at no extra cost. In a context of constant change and limited sustainability resource, clients can rely on the Greenstone team to help them achieve their sustainability goals, and keep them on top of reporting trends, frameworks and legislation.

Our in-house team of developers use cutting edge innovation and technology to constantly evolve Greenstone’s suite of software solutions. To keep up with the constant change in the sustainability space and to stay ahead of our clients’ needs, the team upgrades our solutions every two months.

Meet the team that makes it happen…..

OUR TEAM

Adam_Rhodes
Adam_Rhodes

Adam Rhodes

Head of New Business Development EMEAA

 

As Greenstone’s Head of New Business Development EMEAA, my role is to support new clients along their ESG reporting journey. I build close relationships with clients and work to understand their business, their ESG strategy, and how Greenstone can help them meet their goals. My background is in IT sales, and I have always found it rewarding meeting new people and understanding how we can be successful together. Today it is more important than ever to move away from old processes and old ways of working to achieve a positive social and environmental impact. It has been fantastic to join a company like Greenstone, knowing that every day I am making a small difference.

Outside of work, I have a wide range of hobbies that I’m passionate about. Fitness wise, I love lifting weights and wish I enjoyed running as much! I also love music, and try to attend as many concerts and festivals as I can. When I’m feeling particularly brave, you might even find me performing at an open mic night.

Adam Rhodes 
Andrew Musins
Andrew Musins

Andrew Musins

Developer

 

As a developer in Greenstone, I’m part of a team taking customer experience to the next level, helping clients to get the most out of their data by creating new ways for them to utilise it, and improving the ways we already do! 

Since getting my master’s at Loughborough University, I’ve spent six years in another Enterprise Software company, creating solutions for Facilities, Property, and Real Estate Management solutions, with clients all over the high street. Greenstone was my chance to be a real part of something positive, and a great next step for me.

Outside of work I enjoy a chilled life, visiting local coffee shops and wilderness areas, some casual reading, and slowly attempting to make mine and my partner’s flat a home.

Andrew Musins 
Aparajita Sudan
Aparajita Sudan

Aparajita Sudan

Sustainability Consultant

 

As a Sustainability Consultant at Greenstone, I work with clients to evaluate and report their environmental impact across various sectors and help them set goals for their sustainability journey moving forward. With the evolution of the sustainability space in recent years, I'm thrilled to be a part of a company that has established its way as an industry leader.

Prior to Greenstone, I've been fortunate to work as an Environmental Scientist at one of the fastest-growing companies in the US, a Sustainability Intern at the City University of NY, and a Research Assistant at US EPA. I hold an MPH in Environmental Health from Texas A&M with a certification in Ethics in Global Health from Johns Hopkins University.

Growing up in the Himalayas, I've always been drawn to nature and I'm deeply passionate about exploring the possibility of humans coming together to slow down (or even reverse) our environmental impacts. Being an environmental professional experienced in sustainability, corporate responsibility, and compliance, I aim to work towards building sustainable businesses and communities through collaboration, research, and innovation.

In my spare time, I strive to achieve a balance between trying indulgent recipes and staying fit. I love spending time outdoors, listening to music, and practicing yoga.

Aparajita Sudan  
Beata Ziemlewska
Beata Ziemlewska

Beata Ziemlewska

Accounts Assistant

 

Prior to Greenstone, I worked in multiple roles across different industries. From hospitality management, HR and fashion to the moment I found my passion for accounting. After my graduation with BA in Accounting and Finance, I had a great opportunity to work in hospitality and retail finance for a large international corporation but also as an accountant for movie productions, which was an exciting and interesting addition to my work experience.

I found my place at Greenstone where I can bring in my knowledge and experience but importantly continue learning and growing with and within the company. The role also gave me an amazing chance to share the same passion for sustainability with the vibrant and enthusiastic team.

In my free time, I enjoy spending time with my family and dog Max, socializing, travelling and reading. I also like to stay active, by actively buying several items of indoor gym equipment that I later use as 'fancy' decor in my place.`

Beata Ziemlewska 
Charlene
Charlene

Charlene Noble

Sustainability Consultant

 

As a Sustainability Consultant at Greenstone, I am able to combine my interest in data analysis with my desire to help clients achieve their sustainability-related goals. I achieved a BSc in Environmental Management (with Tourism) specialising in the management of National Parks from the University of the West of England Bristol. This degree highlighted the immense impacts that climate change has had on the environment and society altogether. To further my knowledge, I went on to achieve a MSc in Environmental Management – Sustainable Development from the same university. Prior to working at Greenstone, I had the opportunity to work in the water industry for 5 years in both the Bristol and London regions, which allowed me to work with a range of clients with diverse requirements.

I developed a passion for sustainability from an early age. I was born and raised on a farm in the Mashonaland West region of Zimbabwe and was fortunate to spend my childhood surrounded by nature. Since I was a child I have felt an immense connection toward nature and have always strived to have a positive impact on our planet.

Away from my desk, you will either find me baking up a storm in the kitchen, watching the latest wildlife documentaries or listening to the latest rhythm and blues music.

Charlene Noble 
davidg
davidg

David Golding

Chief Technology Officer

 

I'm Chief Technology Officer, responsible for ensuring that we are constantly blending the latest innovations in web-enabled software with the evolving requirements of our clients and the non-financial reporting space. With quarterly releases across two solution platforms, the Dev team is kept busy, but it’s rewarding work when we see our solutions being used across the globe.

I joined Greenstone bringing 20+ years of IT experience with me. I have designed and developed software for UK military and defence companies, aerospace and even the odd nuclear power station.

When away from the screen my time is spent balancing time with the family and getting away for the odd bit of climbing, cycling or fishing.

David Golding 
David_Wynn
David_Wynn

David Wynn

Chief Product Officer

 

I’ve worked in the sustainability sector for 15 years and been with Greenstone since 2012. Prior to my Greenstone role, I spent time at the Environment Agency, Carbon Trust and Ricardo consulting public and private sector companies on developing their environmental policies and delivering sustainability programmes.

As Chief Product Officer at Greenstone, I’m responsible for overseeing Greenstone’s overall product strategy. This includes being responsible for client delivery and product innovation. I also manage the Greenstone Enterprise product, making sure it evolves with the sustainability reporting landscape to meet our clients’ needs today and in the future.

Based in New York, I have also lived in London and Singapore so love to travel. I’m a bit of a hobby fiend actually so when I’m not baking, I’m either reading, planning treasure hunts or at some kind of music concert.

David Wynn 
Ella Perriton
Ella Perriton

Ella Perriton

Sustainability Consultant

 

My passion for sustainability developed from my ambition to help businesses become more environmentally friendly and responsible for their actions. My role as a sustainability consultant at Greenstone has allowed me to do just that by working with a range of companies who all look to assess and ultimately reduce their environmental impact through a number of strategies.

Previous to working at Greenstone I completed a BSc in Environmental Science with a placement year working within the sustainability team of a multimillion-pound electronics company. After university, I moved to Whistler, Canada for two years to explore more of the natural world. These experiences alongside my degree have allowed me to develop my understanding of what drives businesses to become more sustainable and the most effective ways to do so.

At Greenstone, I am able to use my technical and data management skills to support client projects and their use of our software. I thoroughly enjoy working in an expanding industry within a progressive company who are always evolving with their clients best interests at heart.

I love travelling and learning about different cultures, skiing, scuba diving and watching sport - Especially Arsenal.

Ella Perriton 
Elvis
Elvis

Elvis Nkowa

Software Tester

 

As a Software Tester at Greenstone, I work closely with the Development  Team to ensure that the appropriate level of Software testing is performed and documented before releasing to clients.

My background is in Finance but I made a career move into IT- precisely Software Testing- a few years ago and haven’t looked back since.

I’ve had the great privilege of working for many global businesses across various sectors including Fashion, Brewery and Insurance.

In my spare time, I enjoy watching football and spending time with my family. 

Elvis Nkowa 
Emily Blackman
Emily Blackman

Emily Blackman

Sustainability Consultant

 

Prior to joining Greenstone, I completed a BSc in Geography at the University of Bristol with an Erasmus year in Grenoble, France. In recent years, both of these cities have been recognised for their sustainability initiatives and being exposed and involved in these was a key driver in my decision to become a sustainability consultant. During my degree, I also discovered the power of data analysis as a tool to better understand current and future environmental challenges.

My role at Greenstone allows me to combine my interest in data analysis with my desire to help businesses become more sustainable. Our client base is very diverse and I really enjoy understanding the different requirements of each client and advising them on their non-financial reporting and analysis of sustainability metrics.

In my free time, you will find me walking, running, or cycling in the great outdoors. When I am not being active then I will probably be experimenting in the kitchen, often with varied success.

Emily Blackman 
Ery Dimitrantzou
Ery Dimitrantzou

Ery Dimitrantzou

Marketing Executive

 

As Marketing Executive at Greenstone, I work closely with the Head of Marketing & Partnerships. Being involved in a broad range of marketing, communications and brand development campaigns, my role is all about enabling more companies to invest in sustainability.

I've always felt passionate about preserving our natural environment. As I'm actively trying at an individual level to live a sustainable lifestyle, I've realised that true change can only be made through communication.

I hold a Batchelor in Journalism and a Master in Digital Media. I have been working in Marketing for the past couple of years, and I have learned that choosing appropriate creative communications to reach out to companies can make an impact on the world.

I love vintage shopping, sewing while listening to music or discovering a new hobby to add to my list of many!

Ery Dimitrantzou 
Graeme Pyke
Graeme Pyke

Graeme Pyke

Developer

 

As part of Greenstone’s in-house development team, I am involved in the ongoing development and maintenance of our enterprise-level software. This often involves developing tailored reports for our clients to ensure they are getting true value out of their data. I also work with the Client Services team on the design and development of new solutions and modules.

I recently became a dad for the first time, which means the surfboarding and base jumping that I would have pretended to do, have been pushed aside for sleeping and beard growing. Occasionally I still get to read or get out and about, but frankly, I cannot remember life before my daughter.

Graeme Pyke 
Hadrien Baot
Hadrien Baot

Hadrien Baot

Sustainability Consultant

 
Prior to working at Greenstone, I achieved a MSc in Civil Engineering from ESTP Paris and a MSc specialising in the sustainability field in Energy, Civil Infrastructure, and Climate from the University of California, Berkeley.

With increasing awareness of climate issues, I thrive to help corporations achieve decarbonisation and net zero. Having developed data analysis skills throughout my studies and previous work experience as a renewable energy data analyst, and having worked on various sustainability projects at University such as Life Cycle Assessments of reusable coffee cups or sustainable transportation through Public Bicycle Sharing Programs, it made sense to join Greenstone, where we enable our clients’ sustainability journeys.

At Greenstone, I work as a Sustainability Consultant in the EMEAA Client Services team. This involves doing data analysis, being aware of the latest environmental regulations, and working closely with our clients to support them on their sustainability and ESG reporting journeys. 

When not at work, you can often find me on the tennis courts, on an occasional run, or travelling. I come from Paris, France but I have also lived in Hong Kong for many years
Hadrien Baot 
Harjap-headshot
Harjap-headshot

Harjap Singh

Sustainability Consultant

 
At Greenstone, I work as a Sustainability Consultant in the EMEAA Client Services team. This involves working closely with our clients to support them on their sustainability and ESG reporting journeys. 

Before Greenstone, I worked closely with pharmaceutical executives in market research helping them understand important value drivers for assets in a variety of rare disease. My education has a basis of chemical engineering, supplemented with sustainable solutions in the form of an MSc in Advanced Chemical Engineering from Imperial College London where I studied natural gas, CCUS, and IPCC climate modelling. During my degree and prior experiences, I have developed a robust set of analytical tools across platforms such as Excel, VBA, and R studio – all important for data analysis!

When not at my desk, you can actually find me on stage performing in Bhangra competitions across the UK. When not performing, I’ll be driving – I love my classic cars and am a devout enthusiast constantly searching for a garage addition.
Harjap Singh 
Harry Peck
Harry Peck

Harry Peck

Sustainability Consultant

 

As a sustainability consultant, I help clients achieve their sustainability-related targets. My work allows me to play a part in solving the sustainability issues that I was first exposed to at university.

I completed my BSc in Biology at Imperial College London. This degree highlighted the considerable impacts that climate change and unsustainable practices have on the environment and on society as a whole. To further my understanding of how I can help combat these problems, I decided to complete an MSc in Environmental Technology, also at Imperial College London, where I specialised in Environmental resource management. For a brief period, I worked as a data analyst, in which I was responsible for reporting on trends in the British vehicle fleet, such as the uptake of electric vehicles. My subsequent move to Greenstone was prompted by a growing desire to more directly engage with clients to solve sustainability issues.

When I’m not at work, you’re most likely to find me training at my local fencing club (I’m an épéeist), competing on the national circuit, or cooking something up in the kitchen.

Harry Peck 
Holly Dale
Holly Dale

Holly Dale

Senior Sustainability Consultant

 

I joined Greenstone after a year of exploring the world; seeing its rainforests and oceans which every day I fight to protect in my work as a Sustainability consultant. I work with a diverse range of companies to address their environmental impacts and use the Greenstone software to provide beneficial analysis that can lead to positive change, which is something I find very rewarding. I have a masters in Environmental Governance and a background in Sustainability in the property sector.

I’m passionate about environmental stewardship and am involved with a number of climate change activist groups. I’m a firm believer that if we all made small changes on a mass scale we could make a huge positive impact in the world we’re living in today. Other than being a modern-day superhero – I love dogs, cakes and going to the gym.

Practitioner Member of IEMA.

Holly Dale 
Jake Yeoell
Jake Yeoell

Jake Yeoell

Head of Client Services

 

My work with Greenstone started in 2014 following a period with a sustainability and CSR consultancy. This previous position had a strong focus on developing and delivering sustainability-focused communications projects, reports and wider content for a variety of organisations.

I moved on from my previous role with the aim of being more involved with the data behind reporting; something Greenstone certainly allows me to do. As Head of Client Services, I am responsible for Greenstone’s overall client delivery, management of the client services team and new business development opportunities. I act as Project Director to a number of clients and it is rewarding to be able to build strong relationships and watch our client’s sustainability reporting grow through Greenstone’s innovative solutions and services.

Away from the desk, a lot of my spare time is spent pretending to still play (watch) sport and trying to stay relatively fit. Although I have lived in London for a number of years now, there are still plenty of local pubs to explore!

Practitioner Member of IEMA.

Jake Yeoell 
jamie_colour
jamie_colour

Jamie Devlin

Chief Commercial Officer

 

As CCO, my role is to support clients across multiple industries during their process of deciding which ESG solution to deploy, helping them understand the ESG landscape and define their requirements, ensuring they select the right solution for their organisation.  I also work with Greenstone’s teams to maintain the right balance of resources that enables us to continue delivering world-class solutions for our clients. 

I have always been passionate about technology and its ability to transform the delivery of public services, drive business improvement, or innovate the way we live our lives.  My career has provided me with experience across this spectrum, something I bring to my engagements with Greenstone’s clients.

My children keep me busy most weekends with their sporting activities and my days standing on a touchline have progressed to coaching my son’s football team, which is more stressful and rewarding than I expected! I live in an active village where someone is always available to join me on a run or cycle in the picturesque countryside of North Northamptonshire.

Jamie Devlin 
Jenifer-s
Jenifer-s

Jenifer Rodrigues

Software Developer

 

Growing up in Rio de Janeiro, I was exposed first-hand to both the beauty of nature and the abuse our environment is taking. I am very excited to be a part of Greenstone because I am able to employ my tech development skills to help solve urgent real-world problems while also learning more about the way we are tackling environmental challenges as a society.

My mission at Greenstone is to maintain legacy products and to work closely with the Product team to build new solutions that will help our clients to monitor their global environmental performance and impact.

Before Greenstone, I created software for a number of different industries including Insurance and Hospitality. This range of experience has helped me to build a more generalist view of software development, not only as a puzzle to be solved but as a tool to meet business needs.

My free time is spent visiting museums, hiking or torturing family and friends with my uniquely Brazilian takes on world cuisine.

Jenifer Rodrigues 
Jonathan Knight
Jonathan Knight

Jonathan Knight

Non-executive Director

 

I am a non-executive Director of Greenstone. As I have spent nearly 20 years in the financial industry, I enjoy watching Greenstone grow from strength to strength as a business.

I am currently a private investor and risk consultant but prior to this, I did a 14-year stint at Goldman Sachs, where I served on the Firmwide Technology Committee and several Risk Committees and reached the level of Managing Director. I also worked as a Managing Director for three years at Lehman Brothers and have run several global trading businesses, principally focused on equity and debt derivatives.

During my career, I have been lucky enough to live all over the world; including London, New York and Tokyo and still love to travel when I can.

Jonathan Knight 
Katherine Prove
Katherine Prove

Katherine Prove

Head of Marketing & Partnerships

 

As Head of Marketing & Partnerships at Greenstone, my role is to market Greenstone to the outside world which, with a great team of specialists and fantastic software solutions to offer, is a real pleasure. Before Greenstone, I spent 5 years working for a global environmental consultancy; 18 months of which was spent in the US.

My role is pretty varied; one minute I am working with the team to produce fresh and interesting content for the website, or organising our latest topic-led webinar, the next I am meeting with a like-minded company to explore exciting ways in which we can work together. I manage our global partnership programme and work with our partners to ensure we build and maintain strong and successful relationships.

When I am not in the office, you’ll find me swimming in one of the great outdoor lidos in London, cooking for or eating with friends and family (I’m a real foodie!) or dancing away at a music festival or gig.

Katherine Prove 
Laureen Missaire
Laureen Missaire

Laureen Missaire

Senior Sustainability Consultant

 

As Senior Sustainability Consultant at Greenstone, I lead key client implementation of our software solutions and conduct high-level analysis of clients’ non-financial reporting requirements. I also help companies in their sustainability journey and transition.
Prior to Greenstone, I worked at CDP and was responsible for providing insights to drive progress on businesses’ actions towards water security and worked with key stakeholders to deliver significant changes in corporate environmental management. I hold an MSc in Sustainability Science and Policy from Maastricht University (Netherlands) and focused on business transformation to sustainability.
Away from my desk, I enjoy spending time in the pottery studio crafting tableware. I also enjoy playing squash and badminton, as well as cycling.

Laureen Missaire 
Marian Georgiev
Marian Georgiev

Marian Georgiev

Junior Developer

 

As a member of the software development team, my role is to maintain existing Greenstone products and develop new and exciting solutions for Greenstone customers. I’m really excited to be contributing to solutions that are contributing to saving the environment and helping businesses be more sustainable.

Before Greenstone, I studied Software Engineering and worked in many different roles and industries such as mechanical engineering and IT support.

In my spare time, I enjoy playing around with computer parts and experimenting with different system builds.

Marian Georgiev 
Matthew de Villiers
Matthew de Villiers

Matthew de Villiers

Chief Executive Officer

 

As CEO of Greenstone, my role is to ensure we have the right team and solutions in place to keep our clients happy and stay ahead of their evolving requirements in the constantly changing world of measuring, managing and reporting non-financial information.

Fortunately, I’ve had an eclectic past working with a variety of organisations in strategy, innovation, technology, marketing and operations in both commercial and NGO sectors, across multiple geographies. The blend of client management, innovation, subject matter expertise and software development at Greenstone draws from all of those experiences in a unique way and makes every day an interesting one.

Away from work, my weekends are taken up by watching school sport and pursuing impractical endurance cycling and climbing ambitions. I also keep active in the third sector through SOS Children’s Villages UK where I’m a Trustee and OnPurpose where I help mentor the next generation of social enterprise leaders.

Matthew de Villiers 
Megan Shaw
Megan Shaw

Megan Shaw

Sustainability Consultant

 

Prior to working at Greenstone, I achieved a BSc in Geography from the University of Birmingham specialising in sustainability, I then completed an MSc in Climate Change from UCL to further my knowledge.

I developed a passion for sustainability from an early age and I’ve always strived to have a positive impact on the planet. From working with CDP on their 2021 scoring cycle to writing my dissertation about the impact of fossil fuels on health, I am always trying to stay up to date with the latest environmental rules and regulations. This, combined with my data analysis skills I developed throughout my degrees, led me to becoming a sustainability consultant for Greenstone. My role allows me to work with a range of clients with varying requirements, making every day interesting.

When I’m not at work you can find me crocheting on the sofa, exploring the latest make up trends or at the pub with my housemates.

Megan Shaw 
michele coletti
michele coletti

Michele Coletti

Sustainability Consultant

 

I am a Sustainability Consultant at Greenstone where I support our clients along their sustainability journey. I joined Greenstone for the possibility to work on a variety of different projects from carbon accounting to responsible investments.

Before Greenstone, I have been the Sustainability Manager of a London start-up dealing with electronic waste focusing my attention on product carbon footprint and waste management. I also worked in the University sector on a project assessing the sustainability of the production process of a new type of biofuel. I hold a BSc in Environmental Sciences and an MSc in Environmental Management.

Whenever I get the chance I ditch the chair and look for basketball courts or new cycling climbs around London. I am a bit of a sports freak, but also a real food lover. Every occasion is good to start making the dough for the next pizza night.

Michele Coletti 
Mike Kelly
Mike Kelly

Mike Kelly

Managing Partner

 

My role at Greenstone is to jointly lead the growth of our business in North America and replicate the success that has been achieved in other parts of the world.

Previously, throughout my career, I have joined small to medium growing businesses and worked within them across a variety of functional capacities. Regardless of my functional role, the emphasis has always been on ensuring great customer experience, growing the business and developing teams internally. My first exposure to ESG and sustainability was through a private equity investment role which allowed me to both evaluate new investments through this lens and to evaluate our own business and our impact. From this experience, I decided to focus my career on this burgeoning area. Other industry experience includes office automation, agricultural biotechnology, consulting and banking.

In my free time, I pursue a number of activities including music (I play guitar and piano), golf (poorly) and generally trying to stay in shape as I age.

Mike Kelly 
Nancy Cleveland
Nancy Cleveland

Nancy Cleveland

Non Executive Director

 

I joined the Board of Greenstone as a Non-Executive Director in 2022 with a focus on helping to guide the company’s growth in the United States. I come to this work after 15 years in corporate sustainability management, consulting for a wide variety of companies and developing software for managing sustainability programs in the US. Recently I authored several chapters in an ESG guidebook for corporate directors published by the American Bar Association, which enabled me to combine and use my years of experience and knowledge in sustainability with twenty-five years of practicing law. I enjoy the challenge of simplifying and explaining complex tasks and solving complex problems.

Now retired from the day-to-day of running a consulting and software start-up, I have more time to travel and enjoy my four children and their growing families. We live in the US among the mountains and lakes of New Hampshire, which provides ample opportunities to keep active with Pilates and my favorite outdoor activities: hiking, kayaking, snowshoeing, and skiing. That is, when I haven’t got my head buried in a good murder mystery!

Nancy Cleveland 
Nick Sutton
Nick Sutton

Nick Sutton

Co-founder Director (non-executive)

 

As a founding Director, I have enjoyed seeing Greenstone grow from an idea born out of a few client requests for carbon emissions information to a broad non-financial enterprise solution used by clients across the world.

I’m also a Founder and COO of Qmee and a Non-Executive Director of Zenith. Qmee is a free browser app that provides users with additional search results and cash rewards - a disruptive technology that rewards users for the value they create through their search activity.  Zenith is the leading independent vehicle solutions provider in the UK and winner of the leasing company of the year 2012 and 2013. Prior to Qmee and Zenith, I founded and grew Provecta car leasing until its acquisition by Zenith and spent 10 years in the City, largely within the Swire Group.

Nick Sutton 
Nicky Leonard
Nicky Leonard

Nicky Leonard

Product Development Manager

 

I started my working life as an industrial chemist in South Africa working in a number of manufacturing facilities in quality control and research. In 1990, with my partner, I moved to the UK and found work with ICI paints in the research laboratories, and then later into IT as a business analyst mainly in the testing and training of bespoke software packages.

A few years on, I joined CoreRatings which was a corporate responsibility rating agency providing independent investment analysis of corporate responsibility risks. I then joined URS Corporation as a corporate responsibility consultant where some of the projects I was involved in included the calculation of the clients’ carbon emissions.

By happy coincidence, my role at Greenstone includes science, IT business analysis and corporate responsibility. My responsibilities include ensuring that all specifications for the Greenstone software are accurate, that all new releases are tested and robust, whilst looking after a number of clients including Fujitsu who were our first client.

Away from Greenstone, I enjoy travelling, although the desire to visit family in South Africa rather limits the holiday left for other travel, sport (watching rather than participating), gardening and walking in the beautiful Surrey countryside.

Nicky Leonard 
Nina Spencer
Nina Spencer

Nina Spencer

Non-Executive Director

 

I'm an experienced fintech and asset management executive having spent approximately 15 years at AIM-quoted Alpha Financial Markets Consulting plc, a leading global provider of specialist consultancy services to the asset management & wealth management industries; this included the roles of Global Chief Operating Officer, between 2016 and 2020, and, from 2019, Chief Executive of Alpha Data Solutions.

Since leaving Alpha FMC, I have provided independent consultancy advice to boards on topics such as ESG strategy and regulatory reporting and became a Non-Executive Director for LendInvest in 2021.  I am a Non-Executive Director for Greenstone and sit on the Board. 

In my spare time I enjoy running, yoga and walking our dog Millie. I love to travel and my favourite holiday pastimes include skiing, climbing and scuba diving.  Most weeks I'll be found on a rugby touchline or at the side of a cricket pitch watching my sons play sport. 

Nina Spencer 
Reposa_Headshot2022
Reposa_Headshot2022

Parker Reposa

Sustainability Consultant

 

As a Sustainability Consultant on the North American Client Services team, I help our clients use Greenstone products to progress their ESG goals and scale social and environmental initiatives.

My formative experiences in nature have led me to an academic and professional career in sustainability. I had the opportunity to study at NYU Gallatin where I graduated with a BA in Sustainable Business and a minor in Social Entrepreneurship. At NYU, I focused on corporate sustainability, urban ecology and circular design. Prior to joining Greenstone, I was a social entrepreneur working on upcycling innovation within the coffee industry, as well as a recycling researcher at NYU’s Center for Sustainable Business. In these experiences, I found that many clients and organizations want to make a positive difference in the world but lack the guidance or tools to do so; this is why I joined Greenstone.

Growing up in Southern California, I was fortunate to spend my childhood surfing, exploring California’s coasts and mountains, and falling in love with nature photography. In my free time, I try to get outdoors as much as possible, camping and surfing on the weekends. I also love to garden and cook, take photos, and try new coffees from around the world.

Parker Reposa 
Peyton Cox
Peyton Cox

Peyton Cox

Sustainability Consultant

 

At Greenstone, I sit on the client services team helping North American based clients calculate and report ESG metrics for their internal and external stakeholders. Before coming to Greenstone, I worked at another sustainability software company as an intern. I spent most of my time outlining the value and connectivity of sustainability reporting standards such as CDP, TCFD, and the SDGs to the software.

 

I recently graduated from Duke University with a Bachelor of Science in Environmental Science. I was eager to rejoin the sustainability space after graduation and ecstatic to have landed at Greenstone, an established industry leader. I am fascinated by the intersection of sustainability and business and see data as a crucial mechanism for positive corporate social action.

 

As a new resident to New York City, in my spare time I love exploring the classic tourist sites, walking the Highline, and searching for the best pizza.

Peyton Cox 
Prashant
Prashant

Prashant H. Vyas

Senior Developer

 

As a Senior Developer (Technical) my job is to develop and support Greenstone applications and services. Contribute to specification for design, development, and maintenance of software. Support and guide other developers as required.

I  have more than 19 years of experience in the IT industry with proven expertise in the Software Development Lifecycle (SDLC) right from requirement analysis, documentation, coding, and testing (preparation of test cases along with implementation) to the maintenance of proposed applications. Domain expertise entails Banking, Financial, Mortgages, Insurance, Pharmaceuticals & Manufacturing industries.

I like to spend time with my family and friends in my free time. I do like watching documentaries or web series.

Prashant H. Vyas  
Rafal Fajkowski
Rafal Fajkowski

Rafal Fajkowski

Junior Developer

 

As a Junior Developer, I work closely with other developers, involved in maintaining and enhancing Greenstone's software. My position at Greenstone provides me with an opportunity to have a positive influence on the environment by taking part in projects that support the sustainability of businesses. Moreover, as a recent graduate, I can learn from others, get valuable experience and further develop my skillset.

Prior to Greenstone, after I graduated from university as a software developer, I was working as a freelancer, designing and implementing various websites and web applications. Before that, in search of the right career path, I worked in a range of different industries, from the financial sector to the coffee industry.

In my free time, I enjoy making coffees and practising latte art. Also, I am interested in video games and like to spend either developing my masterpiece or wasting hours playing them.

Rafal Fajkowski 
Sam Watson
Sam Watson

Sam Watson

Developer

 

I’m part of the development team here at Greenstone. It is my job to add enhancements to our systems to meet customers’ requirements, additionally, I often work closely with the customer service teams to perform maintenance tasks to keep our systems running smoothly.

I’ve been working as a software developer in various roles for over 5 years now, which suggests that I must be enjoying it on some level. My previous roles have seen me working in the property management sector as well as in pay-to-play amateur sports.

I’m really into my sport, especially football, so on a weekend you might find me at some sports ground or other watching two teams run around until one of them eventually wins.

Sam Watson 
Soomin Lee
Soomin Lee

Soomin Lee

Sustainability Consultant

 

At Greenstone, I work with North American clients to improve their ESG performance with Greenstone's software solutions. I have a background in business and sustainable development that led me to a career in corporate sustainability.

I've worked on projects with various clients and partners related to the circular economy, sustainable development, and social inclusion. Prior to that, I worked in corporate finance and private equity investment. My cross-sector experience helps me understand different perspectives and connect with diverse clients at Greenstone.

In my free time, I enjoy barre and pilates classes. I also love baking and travelling around the world to try all types of pastries and desserts. 

Soomin Lee 
Steve Shackleton
Steve Shackleton

Steve Shackleton

Junior Developer

 

As a Junior Developer at Greenstone, my role is to develop and maintain Greenstone's ever-evolving suite of software solutions. I am thrilled to be contributing to providing solutions for the measurement and management of carbon emissions and helping organisations tackle the important challenge of climate change.

Before Greenstone, I studied Music and Theatre and then worked in a number of different roles and industries. These included finance, administration, and HR for several corporations. It wasn't until I completed a software boot camp course last year that I finally discovered my passion and my calling as a Developer. The opportunity to be creative and problem solve in a professional capacity is what I enjoy most about my role.

When not at work you'll normally find me producing music, acting, running or travelling when I can.

Steve Shackleton 
Toby Robertson
Toby Robertson

Toby Robertson

Head of InvestorPortal

 

I joined Greenstone in early 2019 as a consultant to evaluate an exciting new ESG product. Subsequently, when I was offered the opportunity to build and take what is now InvestorPortal to market, I jumped at the chance and haven’t looked back since. It’s a pleasure to work with such talented people for a company that is visibly making a difference.

My background is a mix of financial, SaaS and start-up, so working here gives me the chance to make the most of my experience. As Head of InvestorPortal, I’m focused on making sure private capital investors take advantage of our game-changing ESG software and also benefit from being part of the wider Greenstone community.

Outside the office, I enjoy a wide range of interests and family activities but particularly like writing, working on new projects (nearer.com being the latest) and traveling. Having lived and worked in France, Japan, the US and Hong Kong, I’ve had the opportunity to travel extensively but still have a long list of places to visit…

Toby Robertson 
Tom Slack
Tom Slack

Tom Slack

Finance Director

 

In September 2015, I joined the board of Greenstone as Finance Director, having previously spent twenty-five years in the commodities and financial services sectors, operating across a wide spectrum of businesses in general management and financial roles.

I have been fortunate to travel extensively, previously living in Holland and Switzerland and have held a variety of roles from Managing Director of a global coffee business to more recently operating as a Finance Director of a UK retail business.

I enjoy the financial and operational challenges of working in an innovative and fast-moving business like Greenstone and think that our team of client-focused consultants really sets us apart.

Outside of work I am an avid consumer of most sports and have to suffer the pain of watching West Ham most weekends. I like to get away to our ‘bolt hole’ in Norfolk where I spend lots of time with family and walking our dog on glorious empty beaches. I also act as a charity Treasurer and Trustee for a registered branch of the Samaritans.

Tom Slack 
Xabier Goikolea
Xabier Goikolea

Xabier Goikolea

Sustainability Consultant

 

Working as a sustainability consultant in Greenstone allows me to use my data management and technical skills to help clients achieve their sustainability goals. Having the opportunity to work with a broad range of clients in different industries allows me to make a real impact in the achievement of a more sustainable future.

Before working at Greenstone, I completed a Bachelors in Economics, Leadership and Governance and MSc in Public Policy. During my master's degree, I conducted assessments on environmental, economic, and social policies. For example, I investigated the efficiency of introducing a national land value tax to increase accessibility to housing and promoting a more sustainable and efficient use of land. Before my studies, I worked in the agri-food industry as a sustainability intern where I assisted the company in the development of different strategies on GHG emissions, circular economy and plastic reduction.

I was born and raised in the Basque Country, a mountainous area surrounded by the sea. Since I was a kid, I felt a big connection towards nature as my parents encouraged me to do different outdoor activities like hiking and surfing. I also love playing the guitar and listening to rock and electronic music.

Xabier Goikolea 

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