Mulhauser has been providing consulting services to nonprofit organizations, grantmakers and political candidates since 1988 (including the Obama for America campaign). She coordinates a network of over 930 Washington, DC-area self-employed women. She is founder and coordinator of Trusted Sources, a nonpartisan voter engagement organization. She serves on the DC Human Rights Commission and the Advisory Council of Women’s Information Network, which each year presents a DC woman with The Karen Mulhauser Award for service to support the advancement of young professional women.
Before consulting, Mulhauser was the Director of the Center for Education on Nuclear War and an affiliated lobbying coalition, Citizens Against Nuclear War (CAN), and was Executive Director of the National Abortion Rights Action League during most of the ‘70s and through 1981.