| Business | Phone |
| American Testing Svc Ltd 3060 E River Rd, Dayton 45439 | (937) 298-9390 |
| Cal-Tec Labs 3550 Park Center Dr, Dayton 45414 | (937) 264-1414 |
| Certified Home Inspectors 5529 Fair Valley Rd, Dayton 45414 | (937) 898-3300 |
| Supplier Inspection Svc 2941 S Gettysburg Ave, Dayton 45418 | (937) 263-7097 |
| Quality Inspection 1430 Yankee Park Pl # C, Dayton 45458 | (937) 439-9950 |
| Quality Inspection & Cntmnt 1452 Yankee Park Pl, Dayton 45458 | (937) 439-9950 |