Founded in 1983, Keller Williams Realty is an international real estate company with more than 600 offices located throughout the United States and Canada. It assists clients in the buying and selling of single-family and multifamily apartments, community homes, condominiums, independent houses and retail space. Keller Williams Realty also offers mortgage and credit assistance. It provides relocation, client representation, transactional brokerage, property listing, inspection, evaluation, negotiation and closing services. Keller Williams Realty assists buyers in site selection through a network of real estate agents. It offers an online listing of properties and information on mortgages and title insurance. Keller Williams Realty offers franchise opportunities and supports several community programs. It additionally provides a range of training courses for agents through its affiliate, Keller Williams University. Keller Williams Realty maintains a location in Trumbull, Calif.