| Gray & Son, Inc. | 65 |
| Lewis Contractors | 50 |
| Alger Electric | 45 |
| Precision Concrete Const. Co., Inc. | 45 |
| HMS Insurance Associates, Inc. | 45 |
| Metacond, Inc. | 40 |
| Cove Electric, Inc. | 30 |
| Eastern Sales & Engineering Co. | 30 |
| Winn Electric Contracting Co., Inc. | 30 |
| Harkins Builders, Inc. | 25 |
| Centerline Construction Company | 25 |