Senior Research Advisor, Anglophone Africa


As regional researcher, Brett Keller provides technical oversight for research activities conducted in PSI’s 9-country East Africa region. He supports strategic research projects in the region and organizes support for a portfolio of 100+ studies annually, including large-scale quantitative surveys, project evaluations, formative qualitative studies, and marketing research. Previously Brett worked with the Applied Analytics Team at the Clinton Health Access Initiative while based in Tanzania, and as an intern with the JSI Last 10 Kilometers Project in Ethiopia.

Brett has a Master of Science in Public Health degree from Johns Hopkins School of Public Health, focused on global disease epidemiology and control, and a Master of Public Affairs from Princeton’s Woodrow Wilson School, focused on economics and public policy. He is based in Nairobi, Kenya.


Discover what's happening at PSI

Case Study: #thevword (yes, we mean vagina)

“In my country, women’s reproductive health is taboo,” says  Johannesburg-based social media influencer Xoli Gcabashe. “The archaic rules of menstrual etiquette require women to hide

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Case Study: Unlocking Domestic Resources

Explore how an online platform is unlocking domestic resources in Uttar Pradesh, allowing healthcare providers to deliver on their commitment to quality, consumer-powered care.

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Bringing HIV Science to the People and People to HIV Science

We leverage a consumer-powered approach to design people-centered, insights-driven, and evidence-based HIV solutions – at scale.

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What are respectful services? Women and healthcare providers weigh in.

Community dialogues following a formative qualitative study conducted by Kampala Slum Maternal Newborn Health (MaNe) project, provided insights into the challenges of providing and receiving quality respectful maternal and newborn care in the urban slums of Kampala.

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Marisa Bass

To Achieve UHC, Focus on these Three Priorities  

PSI Board Member Marisa Bass offers the three priorities that the public health community must focus on to stay on track to achieving UHC by 2030.

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Making Diaphragms Cool Again: Bringing an Old Method to a New Audience

While existing contraceptive methods haven’t gained traction in Niger, diaphragms are becoming a compelling, non-hormonal option for women dissatisfied with other available options.

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