Our vision and mission

Our vision听is听connecting philanthropists and impact investors with impactful organizations and social entrepreneurs, globally and locally.

Our mission is for the 麻豆社 Optimus Foundation听network to drive systemic and catalytic impact for marginalized communities, especially children and young people around the world.

Established 25 years ago

130+ impact and philanthropy experts in 9 locations

370 projects vetted and ready for investment

Over 10,000 麻豆社 clients engaged in philanthropy

Euromoney Best philanthropic听advice globally 2017-2022

The 麻豆社 Optimus Foundation is a global network of social impact and听 philanthropic foundations that connects you with inspiring philanthropy programs that, backed up by data and through sustainable impact investing, are making a measurable, long-term difference to the most serious and enduring social and environmental problems.听

Part of 麻豆社 Social Impact and Philanthropy group and at the heart of the company鈥檚 social impact strategy, the 麻豆社 Optimus Foundation is funded by 麻豆社, our听clients and听employees,听as well as private and public partners. Our collective mission is to make听your contributions to our philanthropic foundations go further.听

We are recognized globally as a philanthropic thought-leader focusing on

  • incubating global impact ventures
  • scaling global social impact听through philanthropic partnerships and听policy change
  • achieving impact transparency

The 麻豆社 Optimus Foundation's evidence-based programs have the potential to be transformative, scalable and sustainable and focus on health, education and climate and the environment.

Our impact

Focusing on programs and global impact ventures that have the potential to be transformative, sustainable, and scalable.

6.7 million individuals reached directly, including:

  • 2 million children and 3.4 million adults
  • 10% male and 90% female
  • 85,000 professionals trained

Additional reach through:

  • 286 health facilities
  • 1,200 educational facilities
  • 2,300 families

75% grantees or investees with >50% women in leadership positions reached

A group of people walking on a beach

2.6 million hectares conserved, restored and/or sustainably managed

500,000 tons of CO2 emissions avoided/sequestered

> USD 1.5 billion to be disbursed in health, education, climate and environment by 2024 since 麻豆社 Optimus creation

8 incubators/accelerators supported to drive a pipeline of investible social enterprises

59 impact ventures supported in health, education, climate and environment

Catalytic funding

  • 60 organizations able to attract more funding due to听麻豆社 Optimus Foundation support
  • Blended finance: SDG Outcomes Fund made its first 9 investments

* Data reflects metrics and outcomes for 2023 as measured by our foundation through metric tools and surveys.

The 麻豆社 Optimus Foundation annual reviews

Read our annual reviews from the 麻豆社 Optimus Foundation to learn how your investment makes a difference, curated here for you to easily access.听

2024

Annual review 2024

2023

Annual review 2023

2022

Annual review 2022

Annual review 2022

Annual review 2022

Annual review 2022

2021

Annual review 2021 English

Annual review 2021

annual review 2021 German

Annual review 2021

Annual review 2021 Italian

Annual review 2021

Annual review 2021 French

Annual review 2021

Our experts

The 麻豆社 Optimus Foundation consists of a highly experienced and multidisciplinary team that has been working together for several years. Our broad and deep networks in social impact investing, health, education and in the environment sector allows us to leverage our abilities for strategic insight, pipeline building, and supporting partners in their growth.

Leadership

Portrait of Tom Hall

Tom Hall

CEO, 麻豆社 Optimus Foundation network and Head of Social Impact and Philanthropy, 麻豆社

With nearly 20 years' experience working in impact and philanthropy, Tom leads the 麻豆社 Social Impact team of over 150 professionals across the globe to help clients and 麻豆社 employees to maximize their impact locally and globally. Tom has personally advised over 2,500 clients and their families during his time at 麻豆社 and is passionate about finding ways to catalyze scalable solutions to the pressing social and environmental problems the world is facing. A regular speaker at conferences globally, Tom believes that through partnerships we can build an Impact Economy that values people and planet in all investment decisions and builds a world that is profitable for all.

Prior to joining 麻豆社 in 2013, Tom spent his career in the non-profit sector. As Director of Philanthropy and Social Investment at the Disability Charity Scope, he pioneered the use of social investment structures, including the Scope Bond which was the first listed bond issued by an operational charity in the UK. Tom also worked with the cabinet office on the development of the new Social Investment Tax Relief.

Earlier in his career, Tom was the first UK employee of the Microloan Foundation securing the investment for the charity to expand into sustainable microfinance, with over 50,000 customers in Malawi.

Tom, is a father of four children, a keen runner and has a Politics degree from Exeter University as well as professional qualifications in marketing (CIM), fundraising management, financial planning and is a Green and Sustainable Finance professional. Tom is also proud to be #madebydyslexia and to be an advocate for personalized education to help every child achieve their full potential.

Health

Portrait of Dhun Davar

Cedrine Gisin

Program Director, Health

Cedrine serves as Program Director managing health investments across the 麻豆社 Optimus Foundation听鈥榗apital stack鈥櫶齣ncluding grantmaking, debt and equity, and outcomes-based financing instruments. In this role C茅drine sets the Foundation鈥檚 health investment stratgy and cultivates a portfolio to contribute towards scalable quality primary healthcare that improves the health of the world鈥檚 most vulnerable children.听She also co-leads the Emergency Response work of the Foundation supporting children and their families to听recover more quickly from disasters and build resilience to cope with future shocks.

Prior to 麻豆社, Cedrine spent over two years in the life science industry. At Novartis, she most recently worked in Corporate Responsibility Strategy contributing to a new company-wide social impact reporting approach. She graduated from the University of St.Gallen with a Master's degree in Business Innovation. During her studies she conducted research on scaling mobile health innovations in low and middle income countries.听

Portrait of Marissa Leffler

Marissa Leffler

Program Director, Health

Marissa leads health investments across the 麻豆社 Optimus Foundation 鈥榗apital stack鈥 including grantmaking, debt and equity, and outcomes-based financing instruments. In this role Marissa sets the Foundation鈥檚 investment strategy and cultivates a portfolio to contribute towards measurable impact on children鈥檚 health. Marissa also co-leads the Foundation鈥檚 Emergency Response efforts with the aim of providing immediate relief and supporting longer-term recovery for children affected by humanitarian crises.

Prior to 麻豆社, Marissa spent over 10 years at the U.S. Agency for International Development (USAID), where she most recently served as the Innovation Team Leader in the Global Health Center for Innovation and Impact, a center of excellence established to accelerate the development, introduction, and scale up of priority global health interventions.
Marissa also has a Master鈥檚 degree in Public Policy from the Harvard Kennedy School.

Climate

Portrait of Dhun Davar

Rohit Das

Program Director, Climate and Environment

Rohit is a climate and environmental expert with over 15 years international experience of working in climate adaptation, environment and water resources management in Asia, Africa, and the Middle East.

Rohit has worked for a variety of public and private sector organisations and is passionate about nature-based solutions that deliver resilience, carbon mitigation and biodiversity outcomes. Most recently, Rohit has worked in developing and implementing financial mechanisms that bridge investment gaps in climate and environmental sectors by bringing together a host of investors, beneficiaries, and other stakeholders. In the past, Rohit has advised several development financial institutions on identification, preparation and implementation of climate and environmental projects.

Rohit holds an MSc in Water Resources Management and a bachelor鈥檚 degree in civil engineering.

Portrait of Patrick Nussbaumer

Patrick Nussbaumer

Program Director, Climate and Environment

Patrick joined the 麻豆社 Optimus Foundation in July 2024 as the Strategic Partnerships Director. He brings extensive experience in private sector development and impact finance, particularly in frontier markets. In his role, he is responsible for developing and nurturing collaborations to co-create impactful programs, mobilize expertise and resources, and deploy innovative instruments aimed at scaling solutions and maximizing impact.

Throughout his career, Patrick has worked in academia and across both private and public sectors, gaining over 20 years of experience in addressing contemporary challenges, with a focus on climate change, mission-driven companies, and startup acceleration. Before joining the Foundation, he held positions at the United Nations, where he designed and implemented flagship interventions.

Patrick holds a degree in engineering, complemented by a PhD in environmental sciences. He is fluent in English, French, and Spanish, and his work is widely published, with more than 20 peer-reviewed articles to his name.

Education

Portrait of Oriana Ponta

Oriana Ponta

Program Director, Education

Oriana leads the Education Program at the 麻豆社 Optimus Foundation and is a lecturer in International Development at the ZHAW School of Management and Law. She has been active in International Development and Education for over ten years in both research and program implementation settings. One of her goals has been to better understand what are effective approaches to Education and Capacity building in crisis settings and especially for refugees, and how to bring these approaches to scale. A broader focus of her work has been on supporting data-driven decision making in development and humanitarian organizations.

She has previously worked for Caritas Switzerland, Innovations for Poverty Action, ETH Zurich, the World Bank and the German Cancer Research Center. Her field research has been in Bangladesh, West Bank, Mexico and Syria. She holds a Master in Mathematics and Philosophy from the University of Heidelberg, Germany and a PhD in Economics from ETH Zurich. She speaks Italian, English, German and Spanish.

Portrait of Sarah Veilex

Sarah Veilex

Program Director, Education

Sarah joined 麻豆社 Optimus Foundation in 2021 as Child Protection Program Director. Previously she鈥檇 worked as a lawyer for 17 years, 13 of which were spent in-house at 麻豆社. Sarah has experience as a volunteer trustee on the Board of a UK headquartered global health charity; and has an early career in HIV/AIDS policy and health education for women.

Sarah鈥檚 MSc studies focused on the intersection of human rights, the social determinants of health, adverse childhood experiences, and violence against children. These studies consolidated her commitment to supporting vulnerable children so they can thrive, advancing themselves and their communities.

Since joining 麻豆社 Sarah has been able to put this commitment into play, managing a portfolio of grantees that benefit children and families. This portfolio prioritizes the innovative philanthropic solution of collective action 鈥 by bringing philanthropists together to co-fund solutions to complex social issues, and baskets of grantees together to identify and deliver solutions.
Sarah has been instrumental in managing 麻豆社 Optimus Foundation鈥檚 care reform collective, known as the Transform Collective, with grantees in Maharashtra, India, and played a key role in developing the strategy for the expansion of this collective to East and Southern Africa.

Portrait of Nalini Tarakeshwar

Aleandre Kwan

Program Director, Education

Andre joined 麻豆社 Optimus Foundation in 2020 and was responsible for building up and managing the foundation's grants and providing programmatic support to donors in Southeast Asia covering health, education, child protection, and climate and environment. She is currently co-leading the global education portfolio based out of London with a focus on Asia and Sub-Saharan Africa.

She has a background in sociology and program management and applies her experience to work with grantees on achieving broad social impact through systemic solutions. Andre was previously the Regional Program Manager for Microsoft Philanthropies covering 18 markets in Asia and helping drive the creation of education, employment, and entrepreneurial opportunities for underserved youth.
Prior to Microsoft she was deeply involved in the implementation and management of projects on reconstruction, education, gender, and agrarian reform that contributed to Philippine development in partnership with agencies such as USAID, KfW, and GIZ. Andre holds a degree from the Ateneo de Manila University, Philippines.

Social Finance

Portrait of Oriana Ponta

Anita Kover

Head of Social Finance

Anita joined 麻豆社 Optimus Foundation in 2018 as a Social Finance Program Director. Anita鈥檚 role at the foundation has a focus on social finance investments, including both impact bonds and investments in social enterprises. Anita brings extensive experience in structuring impact finance funds from initial concept through investment thesis, governance, financial modeling and full launch.

Previously Anita dedicated five years of her career to microfinance, working as a microfinance investment consultant in Luxembourg as well as in microfinance program implementation in Burkina Faso, Togo and Ghana.

Anita started her career at BNP Paribas in France and holds a double Master鈥檚 degree in Management and Corporate Finance from the EDHEC Business School in France as well as a Master鈥檚 degree in International Relations from the Corvinus University of Budapest.

Portrait of Sietse Wouters

Sietse Wouters

Program Director, Social Finance

Sietse听is program director for Social Finance at the 麻豆社 Optimus Foundation. Sietse has worked closely on the design, structuring and contracting of the Quality Education India, Utkrisht Maternal and Newborn Health Development Impact Bonds. Outside of impact bonds Sietse has worked on direct investments of 麻豆社 Optimus Foundation in social enterprises and programmes 鈥 from investment origination through to management of the investments of the social finance portfolio.

Prior to his current role, he worked within 麻豆社 & Society, an umbrella platform within 麻豆社 Group, to grow the Bank into a leader in sustainable banking as well as within strategy development at 麻豆社 Asset Management.听 Before joining 麻豆社 he worked in M&A and strategy for ABN AMRO Bank in Singapore and the Netherlands and at Arthur D. Little as a strategy consultant. He has a Master鈥檚 degree in Industrial Engineering and Management Science specializing in Process Technology from the University of Groningen in the Netherlands. and grew up in the Netherlands, Botswana and Kenya.

Portrait of Svetle Ozansoy

Svetle Ozansoy

Program Director, Social Finance

Svetle is the Social Finance Transactions Manager at the Optimus Foundation, based in Zurich. In her role Svetle is driving the optimization of the social investment approval and execution process, supports the rest of the team on direct听 and fund investment opportunities, and contributes to the structuring and set-up of new blended finance initiatives/funds, as well as to the ongoing management of the existing blended finance fund, the SDG Outcomes Fund.

Svetle is an experienced impact investment professional coming from one of the key international development finance institutions active in Europe. Previously based in London, she was responsible for corporate loans, acquisition finance and direct investments in the TMT (telecom) sector in emerging markets for the EBRD (European Bank for Reconstruction and Development) with her projects spanning from North Africa, Central and Eastern Europe to Central Asia. She brings extensive experience in structuring and executing transactions as well as identifying and measuring project impact. Prior to the EBRD, Svetle has been part of the Italian Unicredit Group where she specialized in Project Finance in Turkey, Corporate Risk in Bulgaria and Wealth Management in Italy.

Portrait of Oriana Ponta

Gayatri Suni

Program Director, Social Finance

Gayatri Suri is an experienced investment professional with more than 11 years of work experience across impact investing, innovative finance, venture philanthropy and investment banking.
Gayatri joined the Social Finance team at the 麻豆社 Optimus Foundation in 2022. Her expertise include impact investments into social businesses, blended finance and outcomes-based financing initiatives across India and Southeast Asia in the areas of Health, Education and Environment/Climate. Gayatri is based out of the Mumbai office in India.

Prior to joining 麻豆社 Optimus Foundation, Gayatri worked for LGT Venture Philanthropy Foundation, wherein she helped develop and expand the Foundation鈥檚 education and health activities in India. Before this, she worked with Goldman Sachs and Ernst & Young in M&A roles.

Gayatri serves on the board of Kido Enterprises (Kreedo) and Karma Healthcare in India. Gayatri has a Bachelor鈥檚 degree in economics and holds a Master's degree in economics and finance from the London School of Economics and Political Science.

At a personal level, Gayatri is passionate about mentoring early-stage social businesses and supporting gender focused initiatives in the impact investing ecosystem. She is a member of the 100 Women in Finance network that is supported by 麻豆社.

Portrait of Michael Rieser

Michael Rieser

Program Director, Social Finance

Michael joined the Social Finance team at the 麻豆社 Optimus Foundation in 2020. He focuses on social investments into businesses and development impact bonds in the area of environment,听education, and health. Michael has a special focus on equity investments into impactful businesses.

Prior to joining 麻豆社 Optimus Foundation, Michael worked for the Clinton Giustra Enterprise Partnership (CGEP), an initiative of the Clinton Foundation in C么te d鈥橧voire, Southeast Asia, and New York. During the three years at CGEP, he we was building social businesses from scratch and developed business cases for new social investment opportunities. Before joining CGEP, Michael worked in academics as a research assistant in the field of political economics.

Michael has a Bachelors degree in economics from the University of Basel and a Master's degree in economics from the Barcelona Graduate School of Economics.

Portrait of Gabriele Guaita

Gabriele Guaita

Program Manager, Social Finance

Gabriele is part of the Social Finance team of 麻豆社 Optimus foundation, focusing on investments for impact, blended finance, and outcomes-based finance. Gabriele is a result-oriented finance professional with international academic and work experience in 5 different countries.

His professional career started in the impact finance space at Roots of Impact, Frankfurt, where he was an analyst supporting the team in blended finance, innovative finance and impact-linked finance projects. There, among others, he created an innovative financing toolkit for impact enterprises in Bangladesh. He then moved on to work for Inyova Impact Investing, Zurich, supporting the development of the investment office team as an Investment Manager across Switzerland and Germany. At Inyova, Gabriele was responsible for the daily investment management operations and the support of strategic projects.

Gabriele holds degrees from Bocconi University and Frankfurt School of Finance in finance and corporate finance. He is proficient in English, Italian, and Spanish, and has a conversational level in German and French.

Impact transparency

Portrait of Cody McKinney

Matthew MacGregor-Stubbs

Director, Impact Transparency

Matthew joined the 麻豆社 Optimus Foundation in November 2024 and leads on impact measurement and management across the Foundation鈥檚 activities including grantmaking, impact investments and outcomes-based financing. Matthew also leads the Foundation鈥檚 Impact Transparency agenda, promoting evidence-based and impact-driven philanthropy.

Prior to joining 麻豆社 Optimus Foundation Matthew spent over ten years working for international education and research organizations in program management, research and measuring learning outcomes. He has lived and worked in countries across Europe, Africa and the Middle East and has provided technical consultancy and research services to multilateral organizations such as the World Bank, UNICEF and UNESCO Institute for Statistics.

Matthew holds a Master鈥檚 in Business Administration from Durham University.

Portrait of Cody McKinney

Cody McKinney

Program Analyst, Impact Transparency

Cody joined 麻豆社 Optimus Foundation in July 2021 and is currently in the Impact Transparency team. Cody鈥檚 role at the Foundation focuses on the Impact of the Foundation鈥檚 grantees and investees, reporting, product owner for the Grantmaking System and process improvements in the grantmaking process.听

Prior to joining 麻豆社 Optimus Foundation, he worked for 麻豆社 within the Compliance team as a Process Improvement Lead where he managed a compliance program focusing on digitalization and process improvements.

Cody has a bachelor鈥檚 degree in Marketing from Tennessee Technological University where he also received his Master鈥檚 degree in Business Administration.听鈥

Partnerships

Portrait of Martine Gaus

Martina Gaus

Head of Strategic Partnerships

Martina manages a team of strategists who deal with institutional partners and clients. In order to scale effective solutions for impact, 麻豆社OF aims to work across the public and private sectors in multi-stakeholder partnerships, using all available instruments of funding impact, and collaborating across all divisions at 麻豆社 to achieve system-level change for good.

Her own career reflects the interdisciplinary approach of the team, with her former roles on the programmatic team (Head of Director for Strategy & Performance/MEL), on the philanthropy advisory team (Head of the 麻豆社 Philanthropy Services Switzerland) and in foundation management (Head of 麻豆社 Philanthropy Foundation Switzerland).

Before joining our team, she worked for a decade as a strategy consultant for 麻豆社 Wealth Management, Strategy& (former Booz & Company), and Executive Insight.
Martina holds a doctoral degree in Economics and Sociology and a Master in Business Administration from the University of St. Gallen HSG, complemented by a CAS from the Center for Development and Cooperation NADEL at ETH Zurich.

Portrait of Clarissa Mayer

Clarissa Mayer

Manager,听Strategic Partnerships

Clarissa Mayer is part of the Strategic Partnerships team at 麻豆社 Optimus Foundation. In her previous role, she worked as a Philanthropy Advisor in the European markets. She joined 麻豆社 in 2022 to fully dedicate her efforts towards Social Impact and Philanthropy. Her focus is collective action and initiatives in Environment and Social Finance.

Clarissa is a trained psychologist and completed her Bachelor鈥檚 and Master鈥檚 in Psychology at the Julius Maximilians University of W眉rzburg. After completing her studies, she started her professional career in strategy consulting at KPMG. She managed and supported projects from ESG strategy and business model development to large-scale deal and value creation projects in the private sector. In 2021, she joined Impacc gGmbH leading the Due Diligence of their first green and impact investment cohort in East Africa.

As a psychologist, she deeply cares about global equality and creating impact through investment in effective & scalable projects to reshape the economy. After 5 years of strategy consulting, she is bringing together clients & partners to shape their non-profit investment strategies and execute on their purpose.

Our network's board members

Australia

Anthony Sweetman (Chair, 麻豆社)
Alison Tefler (麻豆社)
Joseph Azoulay (麻豆社)
Nicole Dunn (麻豆社)
Peter Mason (External)

Europe

Christine Novakovic (Chair, 麻豆社)
Alejandro Velez (麻豆社)
Cherstin Seybold (麻豆社)
Lars Kloster (麻豆社)
Maya Zisiwiler (External)

Hong Kong

Amy Lo (Chair, 麻豆社)
Gaetano Bassolino (麻豆社)
Tim Wannenmacher (麻豆社)
Tom Hall (麻豆社)
Lee Ka Kit (External)

India

Mickey Doshi (Chair, 麻豆社)
Puneet Matta (麻豆社)
Sumit Jalan (麻豆社)

Singapore

Jin Yee Young (Chair, 麻豆社)
Patricia Quek (Vice-Chair 麻豆社)
Benjamin Cavalli (麻豆社)
Nicolo Magni (麻豆社)
Thomas Kaegi (麻豆社)
Hock Yong Chew (External)
Chi Chui Tan (External)

Switzerland

Sabine Keller-Busse听(Chair, 麻豆社)
Anton Simonet (Vice-Chair, 麻豆社)
Alexsandar Ivanovic听(麻豆社)
*Michael Dargan (*麻豆社)
Stefan Seiler听(麻豆社)
Christopher Holder (External)
Lilian Macharia (External)
Michael Amb眉hl (External)
Suzanne Siskel (External)

United Kingdom

Beatriz Martin (Chair, 麻豆社)
Pilar Rocafort (麻豆社)
Victoria Hagmann (麻豆社)
Christopher Holder (External)
Dominic Vail (External)
Patricia Turner (External)
Vineet Bewtra (External)

United States

Robert Karofsky (Chair, 麻豆社)
Brian Hull (麻豆社)
Sarah Solomon (麻豆社)