The Best Companies in the U.S.

BY Editors

September 21 2010 10:55 AM ET

HRC MORGAN CHASE (GETTY) X390 | ADVOCATE.COMPfizer — The pharmaceutical giant has been a proponent of volunteerism and philanthropy, and there's no exception where gay causes are concerned. Pfizer has been a big donor to the LGBT Caucus of Public Health Professionals and has backed HIV/AIDS research across the country and around the world. In 2009 the company teamed up with GlaxoSmithKline to form a pharma firm focusing solely on HIV/AIDS.

Tags: Business