We Are

In the 20 years since the Dalberg Group’s creation, the firm has worked on nearly every social impact issue imaginable with a wide variety of partners. Through this work, it became clear that we had a unique vantage point and set of skills that we could leverage to more proactively address some of the world’s most pressing problems.

Dalberg Catalyst was thus born. We are a small and nimble team and our dedication to the issues we work on is matched only by our ability to build cross-sectoral coalitions to achieve meaningful progress.

Our Story


While originally set up by the Dalberg Trust with a seed investment in 2020, Dalberg Catalyst functions as an independent entity and is funded entirely by donors. We rely on the support of like-minded partners who share our values and are excited to fund the kind of agenda-shaping work not being done anywhere else.

We also benefit from the contributions of global citizens like you. Your support can help us prevent the next pandemic, increase vaccine equity, and pave the way for a forest-friendly economy.

Our People

Board of Directors

Initiative Leads

Henrik Skovby

Chairman of the Board and Founder & Chairman, Dalberg Group

Dan Tuttle

Director of Health, Stupski Foundation

Sonila Cook

CEO, Dalberg Catalyst

Leadership Team

Sonila is CEO of Dalberg Catalyst, and a member of Dalberg’s Board of Trustees. 

Prior to her role at Dalberg Catalyst, she was a Partner at Dalberg Advisors. She joined Dalberg’s founding team in 2003 and played critical roles in the early growth of the Firm, including establishing the firm’s Energy and Environment Practice, and serving as the Director of the New York office.

Sonila has advised leading foundations, international organizations, governments, companies, and nonprofits on strategies to enhance their impact on some of the world’s most pressing global challenges. Her clients have included the Rockefeller Foundation, New York City Government, Human Rights Watch, UNDP, Swiss Re, Unilever, and the Global Fund to End Modern Slavery.
Prior to joining Dalberg, Sonila worked for McKinsey & Company. She holds an MBA from Columbia University and an undergraduate degree in Economics from Harvard University. She has spoken at various fora including the World Economic Forum and the Council on Foreign Relations, and her perspectives have appeared in publications such as The Guardian and The Economist.
Sonila Cook

Chief Executive Officer

Jo is Director of [TBD] and an experienced program manager and strategic advisor in the social impact, humanitarian and environmental sectors. Jo joined Dalberg Catalyst from Dalberg Advisors where she led teams advising clients on strategy and organizational transformation. Clients include BMGF, WWF International, the UN Secretariat, WHO, and other UN entities. Previously with the Tony Blair Africa Governance Initiative and Dalberg Implement, she worked as an embedded advisor to several African governments on implementing responses to complex challenges including the West Africa Ebola outbreak, private sector development, and government delivery. She also worked in campaigns and advocacy with Oxfam GB in Pakistan.

Jo holds a first class degree in Politics, Philosophy and Economics from the University of Oxford.
Jo Evans

Director of Incubation Strategy and Operations

Bhavana is an Advisor to Dalberg Catalyst’s initiative for Preventing Pandemics at the Source. She previously served as Catalyst’s inaugural Director of Programs, where she worked closely with the CEO to launch the organization from the ground up and design Catalyst’s earliest initiatives. 
Before joining Catalyst, Bhavana spent several years at Dalberg Advisors and as an independent consultant, where she worked with clients like USAID, the Gavi Vaccine Alliance, the Gates Foundation, and others on creating better outcomes for low-income communities - particularly within the realms of global health, food & nutrition, and conservation. 

Bhavana has previously worked as an international economist at the U.S. Treasury, in human rights research at Amnesty International, and as a schoolteacher to first-generation learners in western India. She graduated with a dual B.A. in Economics & History from the University of Maryland and holds an M.A. in International Development from Johns Hopkins SAIS.
Bhavana Chilukuri

Advisor, Preventing Pandemics at the Source

Leslie Park is the General Counsel of Dalberg Catalyst, where she oversees all of the organization’s legal matters.  She has 20 years of experience advising non-profit organizations.  Prior to joining Dalberg Catalyst, Leslie served for a decade as the General Counsel of the Rainforest Alliance, an international environmental NGO.  Leslie began her career in private law firm practice, specializing in tax-exempt organizations. 

Leslie graduated from Yale University with a B.A. in History and from NYU School of Law with a J.D. and LL.M in Taxation.
Leslie Park

General Counsel

Nigel Sizer is the executive director of the Preventing Pandemics at the Source initiative with Dalberg Catalyst. Previously, he was president of Rainforest Alliance, global director of the Forests Program at the World Resources Institute, where he launched Global Forest Watch and the Global Restoration Initiative.  He was also vice president for Asia-Pacific with Rare, pioneering community-based fisheries conservation efforts. In 2008, he was lead advisor on climate change and energy issues in Asia to former US President Bill Clinton. 

He has worked with the United Nations Environment Program and established The Nature Conservancy’s Asia-Pacific Forest Program. A globally recognized authority on forests, ecology, climate change and development policy, he has appeared frequently in the media including with the BBC, CNN, Al-Jazeera, and The Guardian.  Nigel has degrees in natural sciences and tropical ecology from the University of Cambridge. He is based in the United States and lived for 15 years in Brazil, Kenya, and Indonesia.
Nigel Sizer

Executive Director, Preventing Pandemics at the Source,
Senior Advisor

Richard Ryan is Chief Financial Officer (CFO) of Dalberg Catalyst, where he oversees the organization’s finances. He has worked in nonprofit finance, planning and operations for over 25 years.  He was previously Chief Operating Officer (COO) at Center for Reproductive Rights, CFO/SVP at Rainforest Alliance, CFO at The Trustees of Reservations, a Massachusetts-based land and historic conservation organization, COO of the New Jersey Conservation Foundation, and was Regional Finance Director of the New York Chapter of The Nature Conservancy. 

Prior to his move to the nonprofit sector Richard worked in banking in Boston and New York. 

Richard has a BS in Accounting from Salem State University, Salem Massachusetts.
Richard Ryan

Chief Financial Officer

Robyn is the Director of Special Projects, and is an experienced program manager and strategic advisor. Robyn joined Dalberg Catalyst after working across many Dalberg entities. She started at Dalberg Advisors, where she honed her consulting toolkit in issues of job creation and clean energy in the Global South, before moving to Dalberg Implement, where she developed her implementation skills and grew into a program manager, coordination across multi-sectoral, global teams. She also spent 2 years with the Dalberg Trust, where she focused on values-based governance; diversity, equity and inclusion; and innovation. 

Robyn has a Honours degree in Mechanical Engineering from the University of Pretoria, where she is currently completing her Masters degree.
Robyn van den Heuvel

Director of Special Projects


Initiative Leads

Jamie Drummond is a serial advocacy entrepreneur who was global strategist for Jubilee 2000 Drop the Debt and co-founded and – which went on to help cancel over $100b in developing country debt and drive a deal to double smart aid for African nations along with trade and transparency improvements. He has helped drive advocacy strategies that have raised 100s of billions for global health in particularly helping ensure access to ARVs, anti-malarial medications, vaccines and other key interventions are more equitably shared in the poorest communities. 

With a white label platform called “Sharing Strategies” he is currently working with major foundations, MDBs, think tanks, IOs and CSO south and north to catalyze a series of new campaigns and partnerships to “crack the crises” of covid, inequality ecology and climate and help accelerate the SDG Decade of Action and Delivery despite heavy headwinds
Jamie Drummond
Trevor Zimmer
James Mwangi is the Executive Director of the Dalberg Group, a global collection of impact-driven businesses that work to build a more inclusive and sustainable world where all people, everywhere, can reach their fullest potential. James joined Dalberg as a founding member in 2002, started Dalberg’s first Africa office (Johannesburg) in 2007, and subsequently served as Global Managing Partner of Dalberg’s consulting business, guiding the formalization of its structure and governance as a global firm. 
Since 2014, James has served as Executive Director of the Dalberg Group, supporting the growth of new businesses and coordinating the efforts of all Dalberg entities in pursuit of a shared mission. He has led the acquisition or incubation of several integral elements of the Dalberg Group which today operates from locations in more than 25 countries around the world, employing over 500 professionals.
James holds a degree in economics from Harvard University and is a 2009 Archbishop Tutu Leadership Fellow of the African Leadership Institute, a 2013 Young Global Leader of the World Economic Forum and a 2021 Yale World Fellow. 

He currently serves on the boards of the Skoll Foundation, One Acre Fund, Old Mutual Limited, The Global Centre for Pluralism and the Nairobi International Financial Centre Authority
James Mwangi

Background image: NASA, Qadisiyah, Baghdad, Iraq.