Hanson Distributing Company is one of the largest Automotive Aftermarket Independent Warehouse Distributors in the western Un ... ited States. The Company is headquartered in a 200,000 sq. ft. distribution center in Azusa, California in the heart of Southern California. Hanson Distributing Company was founded in 1954 by Merrill and Marjorie Hanson in the garage behind their house in San Gabriel, CA. Over the past 60 years the company has grown and prospered under the second generation leadership and is proud that 3rd generation family is heavily involved in the business. read more