Name of Company | Contact | City | State | Phone |
| American Engineering Testing, Inc. | Robert Temme | Rapid City | SD | 605-388-0029 |
| APC Engineering | Alan P. Church | Platte | SD | 605-337-2641 |
| AquAeTer, Inc. | Steve Wampler | Englewood | CO | 303-771-9150 |
| Aquaterra Environmental Solutions, Inc. | Mike Miller | Omaha | NE | 402-884-6202 |
| B.G. Consultants, Inc. | Thomas Bennett | Manhattan | KS | 785-537-7448 |
| Baker & Associates | John Baker | Scottsbluff | NE | 308-632-3123 |
| Bartlett & West Engineers, Inc. | Galen S. Lay | St. Joseph | MO | 816-364-3551 |
| Bartlett & West Engineers, Inc. | Alan Soelter | Topeka | KS | 785-272-2252 |
| Baseline Engineering | Cooper Best | Golden | CO | 303-940-9966 |
| B.E.S.T., Inc. | J.W. Ennis | Lincoln | NE | 402-483-1069 |
| Bolton & Menk, Inc. | Bill McAllister | Liberty | MO | 816-792-5100 |
| Brady & Swanson LLC | E. Gene Brady | Grand Island | NE | 308-382-6421 |
| Burns & McDonnell | Jim Foil | Kansas City | MO | 816-822-3180 |
| Carollo Engineers, Inc | Larry Elliott | Kansas City | MO | 816-942-4000 |
| Cascade Earth Sciences | Jonathan Paetz | Valley | NE | 402-359-6008 |
| CH2M Hill | Bob Sink | Omaha | NE | 402-341-1258 |
| Conestoga-Rovers & Associates | Neil Leipzig | Omaha | NE | 402-778-4804 |
| DeWild Grant Reckert & Associates Co. | Brian Mastbergen | Sioux City | IA | 712-255-7594 |
| EAD Engineering LLC | Ed Gaither | Omaha | NE | 402-884-8650 |
| EA Engineering, Science & Technology | H. Lee Becker | Lincoln | NE | 402-476-3766 |
| Ecology & Environmental, Inc. | John Caoile | Overland Park | KS | 913-432-9961 |
| Eisenbraun & Associates | Todd Van Maanen | Yankton | SD | 605-665-8092 |
| Eneco Tech | John Lynch | Denver | CO | 303-861-2200 |
| Fox Engineering Associates | David Fox | Ames | IA | 515-233-0000 |
| Gilmore & Associates, Inc. | Keith Gilmore | Columbus | NE | 402-564-2807 |
| Hanson Professional Services, Inc. | Curt Krueger | Kansas City | MO | 816-701-3102 |
| Harding ESE | Tom Colwell | Lincoln | NE | 402-421-7755 |
| HDR Engineering | Tim Crockett | Omaha | NE | 402-399-1257 |
| Howard Green Company | Michael G. Fisher | Cedar Rapids | IA | |
| Huff & Huff, Inc. | | Lagrange | IL | |
| HWS Consulting Group, Inc. | Owen Goodenkauf | Lincoln | NE | 800-279-4972 |
| IT Corporation | Doug Trail | Urbandale | IA | 515-252-0234 |
| Jacobson Satchell Consultants | Dale Jacobson | Omaha | NE | 402-697-0701 |
| JEO Consulting | Tyler Hevlin | Omaha | NE | 402-392-9901 |
| JEO Consulting | Justin Stine | Lincoln | NE | 402-435-3080 |
| John Prouty Construction, Inc. | John Prouty | O'Neill | NE | 402-336-4014 |
| JS Engineering | Jeff Schoeneck | Arlington | NE | 888-805-9845 |
| Kirkham Michael | Johnna Roberts | Omaha | NE | 402-255-3827 |
| Layne Western, division of Layne Christensen Company | Tom Correll | Valley | NE | 402-359-2042 |
| Liesch Associates, Inc. | Ken Olson | Plymouth | MN | 612-559-1423 |
| Lockwood, Andrews & Newnam, Inc. | Gary A. Norton | Omaha | NE | 402-393-1100 |
| M.C. Schaff & Associates, Inc. | M.C. Schaff | Scottsbluff | NE | 308-635-1926 |
| MACTEC Engineering & Consulting, Inc. | Tom Colwell | Lincoln | NE | 402-421-7755 |
| Marc Enviro Services, Inc. | Mark Schafer | Omaha | NE | 402-492-8025 |
| 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 |
| 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 |
| Pinnacle Engineering, Inc. | Steve Schleicher | Rochester | MN | 507-280-5966 |
| Pollution Prevention International, Inc. | Bahman Rohanizadeh | Irvine | CA | 949-757-2690 |
| RDG Geoscience & Engineering, Inc. | Bob Kalinski | Omaha | NE | 402-894-2678 |
| Ross Engineering, Inc. | Amanda Ross-Hoffer | Lincoln | NE | 402-474-7677 |
| Roy F. Weston, Inc. | Ben Noller | Lakewood | CO | 303-980-6800 |
| Roy F. Weston, Inc. | Rodney Kirch | Vernon Hills | IL | 847-918-4149 |
| Sear-Brown | Greg Woodward | Golden | CO | 303-271-9398 |
| Snyder Engineering | Richard Snyder | Columbus | NE | 402-563-2236 |
| Stanley Environmental, Inc. | Mick Durham | Coralville | IA | 319-626-3990 |
| Sverdrup Civil, Inc. | Mike Hill | Overland Park | KS | 913-663-2101 |
| T.C. Engineering Inc. | Tom Werblow | North Platte | NE | 308-534-9245 |
| TCW Construction, Inc. | Christopher Boe | Lincoln | NE | 402-475-5030 |
| Tagge Engineering Consultants | Dana Peterson | 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 |
| The Schemmer Associates, Inc. | Barry Boyd | Omaha | NE | 402-493-4800 |
| URS Corporation | Christie Kampschneider | Omaha | NE | 402-334-8181 |
| U.S. Water Services Corp. | Robert Livermore | Sioux City | IA | 866-753-8292 |
| Veenstra & Kimm, Inc. | Terry McCarl | Omaha | NE | 877-241-8001 |
| Veenstra & Kimm, Inc. | Chris Jens | Sergeant Bluff | IA | 877-241-8009 |
| 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 |
| Wilson & Company | Jeri L. Meyer | Salina | KS | 785-827-0433 |
| WLA Consulting, Inc. | Brian Mulinix | Lincoln | NE | 402-475-8588 |
| WLA Consulting, Inc. | Fred Scarpello | Omaha | NE | 402-991-5833 |