First Alert Professional Security System, 422 Henderson St, Grass Valley, CA 95945, US

Sonitrol Corporation is one of the largest commercial security providers and a leader in verified electronic security in North America. It provides customized security solutions featuring verified audio detection technology in approximately 180 cities throughout the United States, as well as Canada. Its more than 95 franchises sell, install and service modular security systems that feature audio sensors, digital video surveillance, access control integration and central station monitoring hardware and software. The company s eAccess access control system provides embedded and browser-based security for organizations. Sonitrol Corporation also installs and maintains fire protection systems. Its national accounts services include centralized billing and management of facilities located within different franchise areas. The firm serves the retail, education, financial, construction, government, hospitality and nonprofit sectors. Sonitrol Corporation maintains a location in Roseville, Calif.

Chamber of Commerce Grass Valley-Nevada County

Beam Security Systems Inc.

Grande Wood Designs

Beam Easy Living Center