| Business | Phone |
| Fetters & Thien Inc 4190 Hamilton Cleves Rd, Fairfield 45014 | (513) 738-3513 |
| G H Smith & Assoc Surveyors 5456 Lake Michigan Dr, Fairfield 45014 | (513) 939-3443 |
| Ryan Aerial Surveys 690 Nilles Rd, Fairfield 45014 | (513) 829-2376 |
| Tri-State Location Svc 722 Nilles Rd, Fairfield 45014 | (513) 829-7722 |