About us

Structure & Team


Tim Radjy

Tim is the Founder of and Managing Partner of AlphaMundi Group since 2008, and based in Geneva, Switzerland. He is also Chairman of the Board of AlphaMundi’s SocialAlpha Investment Fund (SAIF) in Luxembourg, the Treasurer of AlphaMundi Foundation in Washington DC, and Chairman of the Investment Committee of the AlphaJiri Fund in Mauritius. Tim previously worked at UBS Wealth Management where he became a founding member of UBS Philanthropy Services for UHNWI clients. He also spent time in Bolivia, assessing microfinance programs on behalf of the Swiss Development Agency, and with WWF International as an advisor on major donors. Tim holds a Degree in Political Science from the University of Geneva and a Private Banking Diploma from UBS, and is fluent in French, English and Spanish.

Lisa Scheible Willems

Lisa Willems is a Managing Director at AlphaMundi and based Washington DC. She joined the company in 2013 as Director for African Investments. Following a move from Switzerland to the US in 2015, she started and currently manages the Group’s US operations. She created and presides the AlphaMundi Foundation in 2016 in Washington DC, and secured the initial funding from USAID. She also sits on the Investment Committee for SAIF-Bastion. Beyond her AlphaMundi activities, Lisa sits on the investment committee of Illumen Capital, a private equity impact fund-of-funds launched in 2018, and she teaches impact investing as an adjunct professor at American University. Prior to AlphaMundi, Lisa was Director of Investments at the Henry J. Kaiser Family Foundation where she was a member of a three-person team responsible for overseeing all aspects of management of the USD 600M endowment and played an integral role in building a new investment process. In the impact investing space Lisa has worked with the Overseas Private Investment Corporation, an emerging market fund of funds sponsored by the US Government and Grassroots Business Fund, an impact investment fund in Washington, DC. Beyond her investing experience she spent four years working as a management consultant in New York predominantly at Oliver Wyman. She holds BAs in Economics and Public Policy from Duke University and an MBA from Stanford University’s Graduate School of Business.


Meet our leadership team

Marlene Hormes

Marlene (Carvajal) Hormes, CFA, is a Managing Director at AlphaMundi based in Nairobi, Kenya. Marlene is an investment professional with 20 years of experience who joined us from DEG, Europe’s largest development finance institution, where as Vice President she led teams of professionals throughout the various stages of investing – from sourcing deals to due diligence, structuring and legal documentation to asset management – for a multi-sector private-equity and mezzanine portfolio totaling USD 180M.

Christine Roddy

Christine is the Executive Director for the AlphaMundi Foundation, based in Washington, D.C., USA. Previously, she was an internal strategy consultant with the United Nations Foundation (UNF), where she co-led an organization-wide systems and business processes review and developed recommendations to improve operational efficiencies.

David Maina

David is a Director at AlphaMundi based in Nairobi, Kenya. He joined the company in 2014 to start the Nairobi office and work on the investment process. He heads the team in Nairobi and responsible for partnerships, pipeline development and portfolio management. 

Judith Santbergen

Judith Santbergen is a Manager at AlphaMundi, based in Nairobi, Kenya. Judith has over 13 years of experience in commercial banking, corporate finance, restructuring, and impact investing.  Before joining AlphaMundi in April 2019, she has worked as a senior investment officer in the Africa team of Triodos, a leading impact investor.

José Lozano

José Lozano joined AlphaMundi as a Manager in Bogota, Colombia, in May 2020. Previously, José worked for 6 years in Alianza Fiduciaria & Alianza Valores, as leading asset manager. At Alianza, he structured fixed income, real estate, and alternative investments mutual funds and voluntary pension portfolios, led the business intelligence team and headed the equity research unit responsible for evaluating companies listed in the Colombian Stock Exchange.

Miriam Atuya

Miriam is an Associate at AlphaMundi, based in Nairobi, Kenya. She has over 5 years of experience supporting both the private and public sectors across several East and West African countries (in Anglophone & Francophone Africa) and delivered business, operational and transaction advisory in the Agriculture, Renewable Energy, Consumer goods, and Water & Sanitation sectors. 

Estefania Abello

Estefania Abello Plata joined AlphaMundi as a Senior Investment Associate in Bogota, Colombia, in June 2021. Estefania is a Colombian professional with 7 years of experience in the local investment sector. Before joining Alphamundi, Estefania worked in the Investment Banking industry, supporting, and analyzing deals in more than 9 different sectors, such as Fintech, Foodtech, waste management, transportation, and real estate. She has been responsible for valuations from companies with assets of more than USD 1 Billion.
She holds a degree in Finance and Foreign Affairs from the Externado de Colombia university and the CFA designation. Currently is part of the Directors Board of the CFA Society Colombia. 

Angelica Giraldo

Angélica Giraldo joined AlphaMundi as an Analyst in June 2021, based in Bogotá, Colombia. She is
a last year Business and Economics student at Universidad de los Andes, with minors in French
Language and Culture and Design. She participated in two cultural and academic exchanges, one at
the University of St. Gallen (HSG) in Switzerland (2018) and the other one at the Luigi Bocconi
University in Italy (2020). Angélica enjoys interacting in multicultural environments and working
with multidisciplinary teams. She worked as a teaching and research assistant in +9 opportunities
in marketing, finance sustainability and strategy courses at the university (2016-21). She speaks
Spanish, English and French.

Cecilia Serin

Cécilia is a Fellow at AlphaMundi, based in Geneva, Switzerland. She was previously the head of member relations for Geneva-based association Financial Centers for Sustainability (FC4S). Prior to that, Cecilia spent 4 years at the World Economic Forum working on a new way to measure “Sustainable Competitiveness”, managing a group of 14 international experts. She also worked for 18months at the UNEP Finance Initiative to organize their Global Roundtable in Washington, DC. She has a MSc in Development Management from the London School of Economics and a BSc in Business Administration from the International University of Monaco.

Nora von Wintersdorff

Nora is a Fellow at AlphaMundi, based in Europe. Nora obtained her Master’s diploma in Business and Development Studies at the Copenhagen Business School, with a special focus on strategy, management and sustainable development related to emerging markets. She dedicated her Master’s thesis to the hurdles impact investors are confronted with in Latin America and how to overcome them. 

Joan Muiruri

Joan Muiruri joined AlphaMundi as a Fellow in June 2021, based in Nairobi Kenya . Previously, she worked at Orbit Products Africa Limited as a Financial accounting intern where she worked under the payables department. She recently completed her Bachelor’s of Business Science in Finance degree from Strathmore University.

Rhythm Banerjee

Rhythm Banerjee is a Fellow at AlphaMundi Group in Geneva since August 2021. He is also a Research Scholar at Research in Color Foundation at Princeton University and has previously worked at UNDP Geneva. He holds a BA (Honours) and an Advanced Research Diploma in Economics from Ashoka University with a Summa Cum Laude and is due to receive an MA in Development Studies from The Graduate Institute Geneva (IHEID) in September 2021. He is also a DES candidate in International Economics at IHEID.