Benningfield Group is an established firm with 20 employees based in Folsom California. Since 1978, its principals have been involved in developing and implementing energy codes, mostly predominately in California. The principals have also been involved in developing custom software for a number of clients, specializing in web-based systems that are database-driven and interface with other datasets. Our staff includes project managers, trainers, certified energy analysts, programmers, HERS raters, and technicians. All our staff have extensive experience in regulatory development, assessment, and implementation of programs affecting the built environment.