| Business | Phone |
| Spectra Engineering & Research 1035 S Semoran Blvd # 1031, Winter Park 32792 | (407) 681-1430 |
| Core Engineering & Constr 641 W Fairbanks Ave # 101, Winter Park 32789 | (407) 622-2673 |
| R J Design & Construction 2246 Fairglenn Way, Winter Park 32792 | (407) 657-5185 |
| Raad-Tannous Engineering Group 2716 Forsyth Rd # 112, Winter Park 32792 | (407) 679-1710 |
| Product Technology Corp 1150 Louisiana Ave, Winter Park 32789 | (407) 622-6334 |
| Engineered Homes 1155 S Semoran Blvd, Winter Park 32792 | (407) 678-3939 |
| Nodarse & Assoc Inc 1685 Lee Rd, Winter Park 32789 | (407) 539-0420 |
| Metcalf & Eddy Inc 1560 Orange Ave, Winter Park 32789 | (407) 644-0955 |
| M & T Co 1035 S Semoran Blvd # 1021b, Winter Park 32792 | (407) 673-3130 |
| Jea Construction Engineering 1685 Lee Rd, Winter Park 32789 | (407) 647-1001 |