- A & L Engineering & Consulting
- Axiom Manufacturing
- Dietz Engineering
- Grimm Engineering
- Grimm Engineering Inc
- Hector Gomez Engineers Inc
- HJC
- Kinsman & Assoc Consulting
- LWG Consulting Inc
- Micro Technologies Inc
- NELCO
- Paul L Brown
- Simmons Survey
- Tolson Engineering Svc
- Unified Building Sciences Inc
- Valquest Inc
- VLR Embedded Inc
- Wang Engineering Inc
