- BelleFlex Technologies, LLC
- Bestway Oil & Gas, Inc.
- Black Rhino Services LLC
- Calvary Valve, Inc.
- Canada Rig Mats
- Castagra Product, Inc.
- Conner Steel Products
- Copeland International, Inc.
- Cormode & Dickson Construction
- Coyote Transportation Services
- D.E.F.I.
- David H. Arrington Oil & Gas, Inc.
- Decollement Consulting Inc.
- Depco Power Systems
- Diamond Offshore Drilling