| Business | Phone |
| Wilbur Smith Assoc 900 Chapel St # 1400, New Haven 6510 | (203) 787-0632 |
| Westcott & Mapes Inc 142 Temple St, New Haven 6510 | (203) 789-1260 |
| Urbitran Associates Inc 50 Union Ave, New Haven 6519 | (203) 789-9977 |
| Tpa Design Group 85 Willow St, New Haven 6511 | (203) 562-2181 |
| New Haven Forenisic Conslnt 827 Whitney Ave, New Haven 6511 | (203) 773-0478 |
| Gunterman Engineering 600 Prospect St # A7, New Haven 6511 | (203) 624-2262 |
| Ltk Engineering Svc 54 Hallock Ave, New Haven 6519 | (203) 787-1223 |
| John Smolen & Assoc 424 Chapel St, New Haven 6511 | (203) 865-1174 |