Wyeth was a pharmaceutical company until it was purchased by Pfizer in 2009. The company was founded in Philadelphia, Pennsylvania, in 1860 as John Wyeth and Brother. Wikipedia
Parent organization: Pfizer
Headquarters: Madison, NJ
Subsidiaries: Wyeth Industria Farmaceutica Ltda, Wyeth Pharmaceuticals, Inc., Wyeth Canada, and more
Founded: 1860, Philadelphia, PA
Number of employees: 49,732 (2005)
Number of locations: Collegeville, Pennsylvania and Madison, New Jersey United States
Source: S&P Global Market Intelligence