Keller Williams Realty ranks as a top place to work in Philadelphia. The article discusses how Keller Williams Realty is now the second largest real estate company in the United States and the third largest in North America. It notes that Keller Williams focuses on training agents through its Keller Williams University program and equipping them with skills and knowledge rather than spending on large national advertising campaigns. The article also highlights how attention from Philadelphia agents is wanted, as Keller Williams is seen as a great place to work.