Mariah Collins

Mariah Collins has been with Bridgespan for more than thirteen years, where she has built and led multiple areas of expertise, including measurement, evaluation and learning, where she is the current lead; public health, which she currently co-leads; and the firm’s impact investing practice, with a focus on impact-first investing. She currently works closely with funder collaboratives to help unlock significant funding for global challenges.

Her nonprofit, philanthropy, and impact-investing clients include organizations such as The Audacious Project, TPG’s The Rise Fund, the Bill & Melinda Gates Foundation, the Robert Wood Johnson Foundation, Woodwell Climate Research Center, Every Cure, Active Minds, Upstream, Compass Working Capital, and East Boston Neighborhood Health Center. Mariah’s deepest expertise is in public health and scientific research, with additional experience spanning climate, AI, economic mobility, and education.

Mariah has co-authored many articles including “How Philanthropic Collaboratives Measure, Evaluate, and Learn" (Bridgespan, 2024), “How Nonprofits and NGOs can Measure Progress Towards Systems Change” (Bridgespan, 2024), “How Nonprofits can Incorporate Equity into their Measurement, Evaluation, and Learning” (Bridgespan, 2022), “Calculating the Value of Impact Investing” (Harvard Business Review, 2018), “Back to the Frontier: Investing that Puts Impact First” (Bridgespan, 2021), “The Community Cure for Health Care” (Stanford Social Innovation Review, 2016). “Why Big Health Systems are Investing in Community Health” (Harvard Business Review, 2016)   “With the ACA Under Fire, Can Health Conversion Foundations Patch the Safety Net for Low-Income Americans” (Health Affairs Grantwatch Blog, 2017).

Mariah holds a Master of Science degree from the T.H. Chan Harvard School of Public Health. She graduated Phi Beta Kappa and summa cum laude from Brandeis University where she studied health policy/public health and environmental studies. Mariah is a lifelong Massachusetts resident and lives in the Greater Boston area with her husband, three children, and goldendoodle. 

 * Services to the impact investing industry are provided by Bridgespan Social Impact, Inc., a wholly owned subsidiary of The Bridgespan Group.