CHA’s subsidiary companies deliver additional value to clients by providing specialized experience, cutting-edge technology and complementary services. Together we offer complete solutions to complex challenges.

American Fire

American Fire, a CHA Company, is a highly specialized provider of fire protection engineering, materials, installation, service, inspection, and commissioning services throughout the world. For more information, visit

CHA Architecture

CHA Architecture specializes in the design of sustainable, high performance buildings in the education, sports, health care, multi-family housing, office/corporate, state/municipal and historic preservation sectors. For more information, visit

CHA Canada

CHA Canada, Inc., formerly Gryphon International Engineering Services, Inc., is a multi-discipline consulting engineering design firm dedicated to the thermal, power and energy industry based in St. Catharines, Ontario. For more information, visit

CHA Tech Services

CHA Tech Services provides professional construction management services with a commitment to owner satisfaction, complementing CHA’s design capabilities by focusing talent and expertise into solutions for engineering, program and construction management, and owner’s representation. For more information, visit