L-3 CMRO provides components maintenance, repair and overhaul services for a variety of air, sea, and land vehicles specializing in helicopter dynamics and various aircraft avionics, electrical, hydraulic, and pneumatic components. L-3 CMRO also designs, manufactures and provides after sale MRO support for ground support equipment such as aircraft hydraulic test stands and ground power units, portable generator sets and breathing air compressors.

L-3 CMRO has operations in Mississauga and Trenton, Ontario supporting domestic and international military and commercial customers.