Who We Are
The Hanna Group (THG) is a professional engineering firm that provides a full range of quality and cost effective Program and Construction Management (PM/CM) services on public works projects.
read moreOur Services
Hanna Group personnel are highly qualified individuals with extensive experience on roadway, bridge, airport, tunnel, railroad, water/waste water, building, highway, and ADA construction projects throughout the State of California.
read moreOur Clients
The following is a partial List of our clients.
- Caltrans District 1, 2, 4, 7, 8 ,9 10, 11, 12, 59
- Caltrans Toll Bridge – Bay Bridge
- Bay Area Rapid Transit (BART)