- Apex Engineering Corp
- Ballantec Limited
- Brock Engineering Inc
- Brown Cunningham & Gannuch Inc
- Burk-Kleinpeter Inc
- Cox-Walker & Assoc Inc
- Daniel T Calongne & Assoc Inc
- Englobal Engineering
- Forte & Tablada Inc
- Kramer Engineering Inc
- Mayeaux Engineering Inc
- Mc Kee & Deville Consltng Engr
- Monroe & Corie Inc
- Montgomery Watson
- R & D Consulting
- R H George & Assoc
- Spectrum Engineering Inc
- Turner Environmental Inc
- Weston Solutions Inc
