
Diane de Mailly was named “Woman Business Owner of the Year” in 2011 by the National Association of Women Business Owners (NAWBO)-Ventura Chapter. Now celebrating its 15th anniversary year, DDM is a full service utility submetering firm headquartered in Ventura, California with a national client list. Prior to founding DDM, Diane de Mailly managed the submetering division of a Los Angeles electrical contracting firm. Previously, she served as Director of Communications for Willkie Farr & Gallagher and as a consultant for Debevoise & Plimpton, both international law firms headquartered in New York City. Diane received her B.A. cum laude from Bryn Mawr College.
What our clients say about the DDM system
“Probably one of the most
cost-effective, simple energy
reducing tools one could have
at their disposal.”
Alan Gaskell, Chief Engineer
Equity Office Properties
Yahoo! Center, Santa Monica, CA