Tri-Signal Integration, Inc. is a privately owned full service fire protection, low voltage and communications contractor wit ... h over 40 years of industry experience and nine branches servicing California, Nevada and Arizona. Our service and installation personnel are factory certified and trained. Our company servers a larger diverse range of customers in the institutional, commercial, and industrial marketplace including: Hospitals, Universities, Hotels, Municipalities, Apartment Complexes, Office Buildings, and Schools. read more