Name of Company | Contact | City | State | Phone |
| American Engineering Testing, Inc. | Brad Palmer | Pierre | SD | 605-224-9535 |
| APC Engineering | Alan P. Church | Platte | SD | 605-337-2641 |
| Aquaterra Environmental Solutions, Inc. | Mike Miller | Omaha | NE | 402-884-6202 |
| BE&K/Terranext | Steve Peck | Lakewood | CO | 303-914-1700 |
| BEM Systems, Inc. | Greg Butler | Kansas City | MO | 816-842-7440 |
| B.E.S.T., Inc. | J.W. Ennis | Lincoln | NE | 402-483-1069 |
| B.G. Consultants, Inc. | Thomas Bennett | Manhattan | KS | 785-537-7448 |
| Barker, Lemar & Associates, Inc. | Mike Barker | Des Moines | IA | 515-256-8814 |
| Bartlett & West Engineers, Inc. | Galen S. Lay | St. Joseph | MO | 816-364-3551 |
| Bolton & Menk, Inc. | Bill McAllister | Liberty | MO | 816-792-5100 |
| Burns & McDonnell | Jim Foil | Kansas City | MO | 816-822-3180 |
| Cascade Earth Sciences | Jonathan Paetz | Valley | NE | 402-359-6140 |
| Central Confinement Services | Mark Gearhart | Columbus | NE | 402-563-3628 |
| CH2M Hill | Bob Sink | Omaha | NE | 402-341-1258 |
| Clayton Group Services, Inc. | Monte M. Nienkerk | Downers Grove | IL | 630-795-3200 |
| Clayton Group Services, Inc. | Derek Wong | Novi | MI | 248-344-2661 |
| Conestoga-Rovers & Associates | Neil Leipzig | Omaha | NE | 402-778-4804 |
| Coranco Great Plains, Inc. | Dan Blankenau | Wahoo | NE | 402-443-4340 |
| EA Engineering, Science & Technology | H. Lee Becker | Lincoln | NE | 402-476-3766 |
| Ecology & Environmental, Inc. | John Caoile | Overland Park | KS | 913-432-9961 |
| Environmental Professionals, Inc. | Paul Ziemba | Omaha | NE | 402-891-1112 |
| Fox Engineering Associates | David Fox | Ames | IA | 515-233-0000 |
| Franklin Associates, Ltd. | Shelly Schneider | Prairie Village | KS | 913-649-2225 |
| Geotechnical Services, Inc. | Brian Norton | Omaha | NE | 402-339-6104 |
| Gershman, Brickner & Bratton, Inc. | Harvey Gershman | Fairfax | VA | 703-573-5800 |
| Hanson Professional Services, Inc. | Curt Krueger | Kansas City | MO | 816-701-3102 |
| HDR Engineering | Tim Crockett | Omaha | NE | 402-399-1257 |
| HWS Consulting Group, Inc. | Owen Goodenkauf | Lincoln | NE | 800-279-4972 |
| Institute for Environmental Assessment | David Kluge | Ralston | NE | 402-339-6240 |
| Jacobson Satchell Consultants | Dale Jacobson | Omaha | NE | 402-697-0701 |
| Kirkham Michael | Johnna Roberts | Omaha | NE | 402-255-3827 |
| Liesch Associates, Inc. | Ken Olson | Plymouth | MN | 612-559-1423 |
| Marc Enviro Services, Inc. | Mark Schafer | Omaha | NE | 402-492-8025 |
| MFG, Inc. | Connie Determan | Omaha | NE | 402-933-1345 |
| Midwest Livestock Systems, Inc. | Dennis Boesiger | Beatrice | NE | 402-223-5281 |
| MILCO Environmental Services, Inc. | Chris A. Miller | Kearney | NE | 308-237-5923 |
| Miller & Associates | Reed Miller | Kearney | NE | 308-234-6456 |
| Miller & Associates | Chris Miller | McCook | NE | 308-345-3710 |
| Montgomery Watson | Michael Geringer | Des Moines | IA | 515-253-0830 |
| Natural Resource Group, LLC | Todd Potas | Minneapolis | MN | 612-347-6789 |
| Nebraska MEP, NBDC | Richard Yoder | Lincoln | NE | 402-472-1183 |
| Olsson Associates | Ryan Nelson | Grand Island | NE | 308-384-8750 |
| Olsson Associates | John Olsson | Lincoln | NE | 402-474-6311 |
| Olsson Assoicates | Lou Lamberty | Omaha | NE | 402-341-1116 |
| Panhandle Geotechnical & Environmental, Inc. | David Weinert | Scottsbluff | NE | 308-632-6735 |
| Philip Environmental Services | Beverly Roberts | Columbia | IL | 618-281-7173 |
| RDG Geoscience & Engineering, Inc. | Bob Kalinski | Omaha | NE | 402-894-2678 |
| Rocky Mountain Pump Service, Inc. | David Weinert | Scottsbluff | NE | 308-632-5545 |
| Ross & Associates Environmental Consulting | Gail Gatton | Seattle | WA | 206-447-1805 |
| Roy F. Weston, Inc. | Rodney Kirch | Vernon Hills | IL | 847-918-4149 |
| Safety-Kleen Consulting, Inc. | Mark Gallup | Boulder | CO | 303-938-5565 |
| Sverdrup Civil, Inc. | Mike Hill | Overland Park | KS | 913-663-2101 |
| Tagge Engineering Consultants | Darold Tagge | Holdrege | NE | 308-995-6677 |
| Tetra Tech EM Inc. | Kathleen Homer | Lenexa | KS | 913-894-2600 |
| Tetra Tech EM Inc. | Steve Holmes | Lincoln | NE | 402-420-6228 |
| Tetra Tech, Inc. | Derek Dickinson | North Platte | NE | 308-534-5131 |
| The Schemmer Associates, Inc. | Linda Weaver Beacham | Lincoln | NE | 402-488-2500 |
| TriState Environmental Services | Mark O'Harrow | Sioux City | IA | 712-276-2854 |
| URS Corporation | Christie Kampschneider | Omaha | NE | 402-334-8181 |
| U.S. Water Services Corp. | Robert Livermore | Sioux City | IA | 866-753-8292 |
| W. Design Associates | Steven W. Wolford | Hastings | NE | 402-463-2377 |
| W. Design Associates | Greg Wolford | McCook | NE | 308-345-2370 |
| W. Design Associates | Ed Rieker | North Platte | NE | 308-534-9211 |
| WLA Consulting, Inc. | Brian Mulinix | Lincoln | NE | 402-475-8588 |
| WLA Consulting, Inc. | Fred Scarpello | Omaha | NE | 402-991-5833 |