Specialized Engineering Services, Inc. is a provider of Electrical Engineering Field Service and Power Systems Engineering services. In addition to providing maintenance, repair, and testing of utility and industrial grade substation equipment, S.E.S. also offers electrical power studies, fault analysis, design, and other Power Engineering tasks. Please inquire to S.E.S. directly for substation equipment or parts requests. Located in San Jose, CA. S.E.S. services the entire state of California.