Name of Company | Contact Person | City | State | Phone |
| AEW Engineering, Inc. | Margaret A. Cieslik | Omaha | NE | 402-553-0982 |
| American Engineering Testing, Inc. | Brad Palmer | Pierre | SD | 605-224-9535 |
| Castle Construction Company | Kimberly D. Tate | Columbus | NE | 402-564-5554 |
| Clean Harbors Environmental Services, Inc. | George Cebula | Denver | CO | 303-388-6300 |
| Environmental Professionals, Inc. | Paul Ziemba | Omaha | NE | 402-891-1112 |
| Environmental Solutions, Inc. | John Sempeck | Omaha | NE | 888-908-5700 |
| Evans Environmental Construction | Jeff Evans | Council Bluffs | IA | 712-366-5834 |
| General Excavating | Mike Stewart | Lincoln | NE | 402-467-1627 |
| Haz-Mat Response, Inc. | Jeff Donovan | Olathe | KS | 800-229-5252 |
| John Prouty Construction, Inc. | John Prouty | O'Neill | NE | 402-336-4014 |
| MILCO Environmental Services, Inc. | Chris A. Miller | Kearney | NE | 308-237-5923 |
| Rocky Mountain Pump Service, Inc. | David Weinert | Scottsbluff | NE | 308-632-5545 |
| Safety-Kleen Consulting, Inc. | Mark Gallup | Boulder | CO | 303-938-5565 |
| TCW Construction, Inc. | Christopher Boe | Lincoln | NE | 402-475-5030 |
| Thiele Geotech, Inc. | Michael Gerdes | Omaha | NE | 402-556-2171 |
| Tri State Environmental Services, Inc. | Mark O'Harrow | Sioux City | IA | 712-276-2854 |