U.S. African Development Foundation (USADF) | 32,425 followers on LinkedIn. USADF is a U.S. Government agency creating partnerships, prosperity, and two-way trade between the U.S. and Africa | The U.S. African Development Foundation (USADF) is an independent U.S. Government agency established by Congress to support and invest in African owned and led enterprises which improve lives and livelihoods in underserved in Africa.