Hanlon is a full-service, multidisciplinary engineering firm established in 1999 and headquartered in Tucson, Arizona. Hanlon’s success is built on being a single-source all-inclusive engineering and management firm that works within commercial, industrial, and mixed-use project sectors. Hanlon’s broad range of expertise allows for support of our clients’ projects through feasibility, from conception to engineering, procurement, construction, permitting, and commissioning. Since its establishment in 1999 Hanlon has logged over 1,500 projects. Hanlon is a wholly-owned subsidiary of GR Engineering Services Limited.