Dewey Pest Control was founded by Ray M. Dewey in 1929. It began as a one-man operation, and since then has flourished into a ... n organization of hundreds of technicians, crew workers, inspectors, fumigators, and office personnel. In July 1977, Steven R. Dewey purchased Dewey Pest Control from his father and established our present name Dewey Services, Inc. Dewey Services, Inc. owns and operates 32 branches throughout the State of California. read more