Name of Company | Contact | City | State | Phone |
| AEW Engineering, Inc. | Margaret A. Cieslik | Omaha | NE | 402-553-0982 |
| Agricultural Engineering Associates | John George | Uniontown | KS | 620-756-1000 |
| APC Engineering | Alan 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 |
| Bartlett & West Engineers, Inc. | Galen S. Lay | St. Joseph | MO | 816-364-3551 |
| Brady & Swanson LLC | E. Gene Brady | Grand Island | NE | 308-382-6421 |
| Burns & McDonnell | Jim Foil | Kansas City | MO | 816-822-3180 |
| Clayton Group Services, Inc. | Monte M. Nienkerk | Downers Grove | IL | 630-795-3200 |
| Cooper Engineering, P.C. | John W. Cooper | Lincoln | NE | 402-483-5489 |
| Conestoga-Rovers & Associates | Neil Leipzig | Omaha | NE | 402-778-4804 |
| Coranco Great Plains, Inc. | Dan Blankenau | Wahoo | NE | 402-443-4340 |
| Dultmeier Engineering | Tom Hansen | Omaha | NE | 402-333-6928 |
| EA Engineering, Science & Technology | H. Lee Becker | Lincoln | NE | 402-476-3766 |
| Earth Sound, Inc. | Jim Kenny | McCook | NE | 308-345-7681 |
| Eisenbraun & Associates | Todd Van Maanen | Yankton | SD | 605-665-8092 |
| Eneco Tech | John Lynch | Denver | CO | 303-861-2200 |
| Engineering Design Consultants, LLC | Christopher Langan | Omaha | NE | 402-614-0434 |
| Enviro Service | Marty McCafferty | Scottsbluff | NE | 308-632-3933 |
| Environmental Management Resource, Inc. | John Rademacker | Lincoln | NE | 402-441-3022 |
| Environmental Professionals, Inc. | Paul Ziemba | Omaha | NE | 402-891-1112 |
| The Flatwater Group | Tom Riley | Lincoln | NE | 402-435-5441 |
| Fox Engineering Associates | David Fox | Ames | IA | 515-233-0000 |
| Franklin Associates/McLaren/Hart, Inc. | David E. Brewer | Prairie Village | KS | 913-649-2225 |
| Geotechnical Services, Inc. | William Arneson | Lincoln | NE | 402-466-8154 |
| Geotechnical Services, Inc. | Brian Norton | Omaha | NE | 402-339-6104 |
| 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 | |
| HWS Consulting Group, Inc. | Owen Goodenkauf | Lincoln | NE | 800-279-4972 |
| Inberg-Miller Engineers | Lawrence Wright | Cheyenne | WY | 307-635-6827 |
| Institute for Environmental Assessment | David Kluge | Ralston | NE | 402-339-6240 |
| Jacobson Satchell Consultants | Dale Jacobson | Omaha | NE | 402-697-0701 |
| John Prouty Construction, Inc. | John Prouty | O'Neill | NE | 402-336-4014 |
| Kirkham Michael | Johnna Roberts | Omaha | NE | 402-255-3827 |
| Liesch Associates, Inc. | Ken Olson | Plymouth | MN | 612-559-1423 |
| M.C. Schaff & Associates, Inc. | M.C. Schaff | Scottsbluff | NE | 308-635-1926 |
| Maxim Technologies | Mitch Kannenberg | Sioux Falls | SD | 605-332-5371 |
| 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 |
| Norm Koester Engineering | Norman D. Koester | Plattsmouth | NE | 402-235-3936 |
| Olsson Associates | Ryan Nelson | Grand Island | NE | 308-384-8750 |
| Olsson Associates | Lou Lamberty | Omaha | NE | 402-341-1116 |
| Olsson Associates | John Olsson | Lincoln | NE | 402-474-6311 |
| Panhandle Geotechnical & Environmental, Inc. | David Weinert | Scottsbluff | NE | 308-632-6735 |
| Professional Environmental Solutions | Vaden Hellerich | Valparaiso | NE | 402-817-3942 |
| Rocky Mountain Pump Service, Inc. | David Weinert | Scottsbluff | NE | 308-632-5545 |
| Roy F. Weston, Inc. | Rodney Kirch | Vernon Hills | IL | 847-918-4149 |
| Seneca Environmental Services, Inc. | Dustin Cruikshank | Omaha | NE | 402-431-0340 |
| Settje Agri-Services & Engineering, Inc. | Dean Settje | Raymond | NE | 402-783-2100 |
| Solstice Company, Inc. | Jay Baier | Huxley | IA | 515-291-4221 |
| Solstice Company, Inc. | Pete Mackenhaupt | Omaha | NE | 402-730-0367 |
| Stanley Consultants, Inc. | Mick Durham | Coralville | IA | 319-626-3990 |
| Steffen Engineering & Testing, Inc. | Jerry Steffen | Sioux City | IA | 712-277-3017 |
| Sverdrup Civil, Inc. | Mike Hill | Overland Park | KS | 913-663-2101 |
| TCW Construction, Inc. | Christopher Boe | Lincoln | NE | 402-475-5030 |
| Tagge Engineering Consultants | Darold Tagge | Holdrege | NE | 308-995-6677 |
| Terracon | David M. Svingen | Omaha | NE | 402-330-2202 |
| 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 |
| TriState Environmental Services | Mark O'Harrow | Sioux City | IA | 712-276-2854 |
| 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 |
| West Central Environmental Consultants, Inc. | Gaylen Weisenburger | Morris | MN | 320-589-2039 |
| Whole Farm Environmental Living Energy Systems, Inc. | Ron Miller | Scottsbluff | NE | 308-632-6979 |
| WLA Consulting, Inc. | Brian Mulinix | Lincoln | NE | 402-475-8588 |
| WLA Consulting, Inc. | Fred Scarpello | Omaha | NE | 402-991-5833 |