BSM Facility Services Group was founded in 1979 and is your complete source for Green Commercial Facility Services and buildi ... ng maintenance. Serving a variety of facilities and commercial real estate properties throughout Northern California including, the entire San Francisco Bay Area, Silicon Valley, and Sacramento. We are proud to have achieved an overall customer retention rate of 95%, which rates us in the top one percent of the industry. This is a major indicator in how we measure our success - not in profit dollars or sales volume numbers. read more