Colliers International - Stockton, 3439 Brookside Road, Suite 108, Stockton, CA, 95219-1757 Tel: 209-475-5100 Fax: 209-475-5102 - Central Valley Commercial Real Estate Service providers for the Stockton and San Joaquin County region, including Stockton, Lodi, Tracy, Lathrop, Oakdale and Mantica. Specializing in office, industrial, land, retail, and investment properties, and providing leasing and sale brokerage, consulting, advisory, financial and property management services.