| Adaptor Inc. |
| American Flow Control |
| Ayres Associates |
| B & M Technical Services |
| Bruce Municipal Equipment Inc. |
| Davy Engineering Co/Davy Laboratories |
| Energenecs |
| KLM Engineering Inc. |
| L & S Electric Inc. |
| MSA Professional Services, Inc. |
| Municipal Well & Pump |
| Northern Lake Service Inc. |
| Water Well Solutions Service Group, Inc. |