| Business | Phone |
| Admiral Testing Svc 5909 Breckenridge Pkwy # C, Tampa 33610 | (813) 623-3777 |
| Air Quality Environmental Tampa 33602 | (813) 225-2005 |
| Architectural Testing 2250 Massaro Blvd, Tampa 33619 | (813) 628-4300 |
| Underwriters Laboratories Inc 8192 Woodland Center Blvd, Tampa 33614 | (813) 882-3118 |
| Test Lab Inc 4112 W Osborne Ave, Tampa 33614 | (813) 872-7821 |
| Thornton Laboratories Inc 1145 E Cass St, Tampa 33602 | (813) 223-9702 |
| Product Safety Engineering 8052 N 56th St, Tampa 33617 | (813) 989-2360 |
| Pri Asphalt Technologies 6400 Badger Dr, Tampa 33610 | (813) 621-5777 |
| Nde Inc 4816 N Clark Ave, Tampa 33614 | (813) 876-4688 |
| Millennium Laboratories Inc 12721 Race Track Rd, Tampa 33626 | (813) 925-3871 |
| King Laboratories 5009 S Macdill Ave, Tampa 33611 | (813) 831-0208 |
| Elab Inc 1211 Tech Blvd # 106, Tampa 33619 | (813) 837-6705 |
| Hernasco Testing Lab Tampa 33602 | (813) 318-9211 |
| Innovative Applied Science 6032 W Clifton St, Tampa 33634 | (813) 880-8911 |