- C F Systems
- CDI Business Solutions
- CH2M Hill
- E2 Consulting
- Frankie Friend & Assoc Inc
- Haselwood Enterprises Inc
- Knight Jacobs Joint Venture
- M S Technologies Inc
- MWH Americas Inc
- Omega Consultants Inc
- PAI Corp
- Pro-2-Serve
- PSK Inc
- Safety & Security Solutions
- Spectrum Inc
- T N & Assoc
- Theta Engineering
- URS Corp
- W M Assoc LLC
