Clients
- The Field Museum, where CATH has been providing ongoing service since 1991
- The John G. Shedd Aquarium
- Museum of Science and Industry
- Lawrence Hall Youth Services
- Chicago Transit Authority
- Public Building Commission of Chicago
- City of Evanston
- Cook County
- Great Lakes Naval Training Center
- Hood College in Frederick, Maryland
- Quaker Oats
- Tishman Construction
- The Army Corps of Engineers
- Van Kampen Investments
- and many other institutions and private companies
