Mimi Alemayehou

Mimi Alemayehou—has been a leader on development finance and investing in infrastructure in the public and private sectors for more than 20 years. 

She is the Founder and Managing Partner of Semai Ventures LLC, which collaborates with mission-driven enterprises to advance sustainable development in emerging economies. 

She is also a Senior Advisor of the Three Cairns Group, a mission-driven investment and philanthropic firm working to accelerate the transition to a low-carbon economy. 

Previously she was Senior Vice President for Public-Private Partnerships at MasterCard where her portfolio included initiatives designed to catalyze social impact and financial inclusion in emerging markets. 

As Managing Director of the Black Rhino Group and Chair of Blackstone Africa Infrastructure LP, she advanced major energy and infrastructure projects across Africa. 

Her government service includes an appointment as Executive Vice President of the Overseas Private Investment Corporation (OPIC), the U.S. government’s development finance agency, and as the U.S. representative on the Board of the African Development Bank. 

She is on the board of the ONE Campaign whose mission is to end extreme poverty. Previously she served on the board of Climate Change Crisis Real Impact and the board of Energy for Growth Hub.  Her other board roles have included: Fin Dev Canada, the US African Development Foundation, and Twitter, Inc.