Cotton Electric Service Inc. (CESI) is a subsidiary of Cotton Electric Cooperative Inc. in Walters, OK. We have been testing high voltage equipment since 1990. We take great pride in being a part of an electric distribution company and have first-hand knowledge of industry needs.
The testing facility at CESI has exceeded the strictest standards established by the North American Independent Laboratories for Protective Equipment Testing and maintains its NAIL accreditation for protective equipment testing. You can rely on CESI for safety.
