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Grassroots Business Fund

Impact investor

Nairobi · Seed–Growth · 35 people tracked

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Investment thesis

The firm targets 'missing-middle' SMEs that are too large for microfinance and too early for commercial banks, and that often fail from lack of operational infrastructure rather than lack of funding. Its model combines structured, patient capital with embedded technical assistance across three connected windows: programs supporting early-stage enterprises, an investment window providing patient mezzanine capital to growth-stage enterprises, and cross-cutting technical assistance strengthening finance, operations, and governance. The goal is not to hold companies indefinitely but to make them fundable by commercial banks and other investors, with enterprises graduating from programs into the investment portfolio. Focus is on East Africa, with broader work across Africa, Asia, and Latin America.

Source: firm website, verified Aug 3, 2026.

Stage
Seed–Growth
Check
$100K – $3M
HQ
Nairobi, KE
Instruments
Equity · Debt
Founded
2004
AUM
$80M

Team · 35 people

from the firm's website & curated
Harold Rosen· Founder

Founder of the firm, emphasizing partnership with African entrepreneurs over handouts or predatory loans, and a belief that the best investments are both financially sound and deeply human.

Lilian Mramba· Chief Executive Officer, Africain

CEO Africa with over 17 years of experience supporting businesses across Africa. She previously worked at Moss Adams LLP and the African Development Bank, and holds an MBA from Thunderbird School of Global Management.

Darshan Dhakan· Investment Director

Senior Portfolio Manager at GBF with over 9 years of experience, focused on investment strategies aligning profitability with sustainable development. Holds a Master's in Finance from Nottingham University Business School.

Antony Muriki· Senior Investment Analyst
Bethrose Chege· Investment Analyst
Brigid Kamau· Finance Director

Senior Finance Manager with over 10 years of experience leading finance teams and audits. Holds a Bachelor of Commerce in Finance and is a Certified Public Accountant (CPA-K).

Cheryl Onyango· Investment Analyst
David Sandimba· Head of Internal Audit
Faith Makena· Senior Investment Analyst
Guillermo Ferreyros· CEO, President and Executive Director, Maple Energy Plc

Executive with more than 20 years of experience in energy and agro-industrial development in Peru. He serves as CEO and Executive Director of Maple Energy PLC.

Holly Wise· Senior Director of Global Programs

Founder of Wise Solutions LLC, bringing international development and public-private alliance expertise. She is a Senior Fellow at Harvard's Kennedy School and Senior Associate at CSIS.

Ian Mati· Chief of Staff
Jaime Ramirez· GBF Advisor

Advisor with over 25 years of experience in finance, project management, and operations consulting in developing countries. He worked for GBF for over 15 years.

James Nyanga· Data Analyst
Jill Malkiah· Human Resources Officer
Kezia Machuki· Senior Accountant
Laila Kassam· Investment and Program Officerin

Investment Officer with over 7 years of experience, holding an MBA from United States International University and a certificate in carbon finance.

Leah Mburu· Senior Advisor

Senior Financial and Strategy Advisor with over 28 years of experience across manufacturing, hospitality, agriculture, and financial services. Holds an MBA and ACCA qualification and is pursuing a PhD in Public Policy.

Leone Muyale· Investment Analyst
Mary Houghton· Chairman of the Board

Board chair and co-founder of ShoreBank Corporation, a community development-focused bank holding company. She is a director of several financial institutions including Basix and BSFL in India and Citizens Bank in Canada.

Mellanie Wangare· Program Manager
Mercy Ireri· Monitoring, Evaluation & Learning Lead
Noelina Wadaki· Head of Operations
Regina Nthenge· Investment Analyst
Rose Galamgam· Finance Officer
Sakina Orwa· Investment Analyst
Stephen Sambu· Investment Analyst
Stercy Makori· Internal Audit/Safeguarding Officer
Terry Achola· Administrative Assistant

Administrative assistant with over 4 years of experience. Holds a communications degree from St. Paul's University and a diploma in travel and tourism management.

Titus Muema· Senior Investment Analyst
Victoria Garzon· Legal, Risk and Compliance Leadin

Legal and compliance professional with over 7 years of experience, previously at British American Tobacco, Posse Herrera Ruiz, and Microsoft. Holds a law degree and postgraduate degree in International Business Law from Universidad de Los Andes.

Vincent Omondi· Program Accountantin

Vincent Omondi is a Program Accountant at Grassroots Business Fund with over four years of experience in grants finance and program accounting at international NGOs, covering budget development, burn rate monitoring, donor financial reporting, partner due diligence, and audit coordination. His donor experience includes work aligned with USAID, Global Fund, and Mastercard Foundation requirements, and he uses Navision (MS Dynamics) for budget tracking, payment processing, and reporting. He is a full member of ICPAK (No. 36212) and the Institute of Internal Auditors Kenya, and is pursuing CIA certification.

Zoë Dean-Smith· Senior Director of Global Programs, Vital Voices

Former Senior Director of Vital Voices' Global Entrepreneurs in Handcrafts Program, based in Swaziland from 2007-2011. She has worked on handicraft development across Africa and Southeast Asia.

Ladina Blöchliger· Program Accountantin

Associate real estate manager.

Sebastian Scherrer· Chief Executive Officer, Africain

Head of Operations & IT with over 10 years in process automation, previously in business development for Swiss fintech/wealthtech firms; co-founder of Autoplush.

Frequently asked questions

What stage does Grassroots Business Fund invest at?
Grassroots Business Fund invests at the Seed, Series A, Growth stages.
What is Grassroots Business Fund's typical check size?
Grassroots Business Fund typically writes checks of $100K – $3M.
What sectors does Grassroots Business Fund focus on?
Grassroots Business Fund focuses on Impact & Social Good, Sector Agnostic.
Where is Grassroots Business Fund located?
Grassroots Business Fund is headquartered in Nairobi, KE.

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