In 1999 Hassan Sheikh co-founded the Somali Institute of Management and Administration Development (SIMAD). He joined the Center for Research and Dialogue (CRD) in 2001 as a researcher and later research coordinator and led the formation of the Somali Civil Society Forum in 2005. In 2006 he co-founded the Somali Research and Education Network (SomaliREN), and since 2007 has worked as a consultant with various international and local organisations.