| Business | Phone |
| Cali & Laplace Engineers Llc 300 Saint Charles St, Baton Rouge 70802 | (225) 388-9500 |
| Criterium-Stein Engineers 13366 Hooper Rd, Baton Rouge 70818 | (225) 262-0020 |
| Gautreau & Gonzales Engineers 2320 Drusilla Ln, Baton Rouge 70809 | (225) 933-9323 |
| Hntb Corp 9100 Bluebonnet Ctr Blvd 301, Baton Rouge 70809 | (225) 368-2800 |
| Jacobs Engineering Group Inc 4949 Essen Ln, Baton Rouge 70809 | (225) 769-7700 |
| Quebedeaux Engineering Svc Llc 17451 Jefferson Hwy, Baton Rouge 70817 | (225) 751-5102 |
| Urban Systems Inc 7732 Goodwood Blvd, Baton Rouge 70806 | (225) 928-4447 |
| Rpm Englobal Engineering Inc 10252 Mayfair Dr, Baton Rouge 70809 | (225) 293-4000 |
| Sage Environmental Consulting 8440 Jefferson Hwy, Baton Rouge 70809 | (225) 927-2258 |
| Site-Blauvelt Engineers Inc 8550 United Plaza Blvd 502, Baton Rouge 70809 | (225) 216-7483 |
| Digital Engineering & Imaging 606 Colonial Dr, Baton Rouge 70806 | (225) 922-8042 |
| Globenet Environmental Group 5700 Florida Blvd, Baton Rouge 70806 | (337) 235-2912 |
| Michael Pisani & Assoc Inc 18163 E Petroleum Dr B, Baton Rouge 70809 | (225) 755-2250 |
| Triton Controls & Engineering 11851 Dunlay Ln, Baton Rouge 70809 | (225) 751-7161 |
| Saab Rosemount Tank Gaging Llc 13331 E Parnell Ave, Baton Rouge 70815 | (225) 273-3116 |
| Washington Group Intl Inc 8232 W Darryl Dr, Baton Rouge 70815 | (225) 928-6150 |
| Fugro Consultants Lp 4252 Rhoda Dr, Baton Rouge 70816 | (225) 292-5084 |
| Poche Associates Ltd 3962 Country Way Dr, Baton Rouge 70816 | (225) 752-8844 |
| Sigma Consulting Group 10305 Airline Hwy, Baton Rouge 70816 | (225) 298-0100 |
| Criterium Dormady Engineers 17461 Jefferson Hwy, Baton Rouge 70817 | (225) 752-8037 |
| Ch2m Hill 2900 Westfork Dr, Baton Rouge 70827 | (225) 295-5658 |