| Business | Phone |
| Advanced Engineering & Design 6161 9th St N # 101, St Petersburg 33703 | (727) 526-9158 |
| C Fred Deuel & Assoc Inc 1620 1st Ave N, St Petersburg 33713 | (727) 822-4151 |
| Professional Engineering 646 94th Ave N, St Petersburg 33702 | (727) 576-2007 |
| Pine Design Engineering 9400 4th St N, St Petersburg 33702 | (727) 577-1166 |
| Mesimer & Assoc 1530 Dr Martin Luther King Jr, St Petersburg 33704 | (727) 894-8589 |
| Montecki & Assoc 3637 4th St N # 390, St Petersburg 33704 | (727) 894-2275 |
| George F Young Inc 299 9th St N, St Petersburg 33701 | (727) 822-4317 |
| H3o Design 6341 20th St N, St Petersburg 33702 | (727) 527-2915 |