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 |
| Air Resource Specialists, Inc. | Howard Gebhart | Fort Collins | CO | 970-484-7941 |
| Amethyst Group, Inc. | Keri Luly | Springfield | IL | 217-544-9790 |
| ANLAB Environmental | Bobby E. Henderson | Kansas City | MO | 819-421-0451 |
| AquAeTer, Inc. | Steve Wampler | Englewood | CO | 303-771-9150 |
| SCS Aquaterra | 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 |
| Burns & McDonnell | Jim Foil | Kansas City | MO | 816-822-3180 |
| Cascade Earth Sciences | Jonathan Paetz | Valley | NE | 402-359-6008 |
| Central Confinement Services | Mark Gearhart | Columbus | NE | 402-563-3628 |
| CH2M Hill | Bob Sink | Omaha | NE | 402-341-1258 |
| Compliance Engineering, Inc. | Steven Tyler | Kanas City | KS | 913-281-2444 |
| Conestoga-Rovers & Associates | Neil Leipzig | Omaha | NE | 402-778-4804 |
| Coranco Great Plains, Inc. | Dan Blankenau | Wahoo | NE | 402-443-4340 |
| DPRA, Inc. | Mary Lou Marino | Manhattan | KS | 913-539-3565 |
| EA Engineering, Science & Technology | H. Lee Becker | Lincoln | NE | 402-476-3766 |
| 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 |
| Environmental Sciences, Inc. | Kendall Bonenberger | Lincoln | NE | 402-423-9696 |
| 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 |
| Hanson Professional Services, Inc. | Curt Krueger | Kansas City | MO | 816-701-3102 |
| HDR Engineering | Tim Crockett | Omaha | NE | 402-399-1257 |
| Heartland Environmental & Safety Consulting Services, Ltd. | David C. VanDyke | Stanley | KS | 913-681-6882 |
| Howard Green Company | Michael G. Fisher | Cedar Rapids | IA | |
| HWS Consulting Group, Inc. | Owen Goodenkauf | Lincoln | NE | 800-279-4972 |
| Institute for Environmental Research & Education | Rita Schenck | Vashon | WA | 206-463-7430 |
| Jacobson Satchell Consultants | Dale Jacobson | Omaha | NE | 402-697-0701 |
| JES Environmental Services, Inc. | Jack Sukovaty | Lincoln | NE | 402-423-8054 |
| JS Engineering | Jeff Schoeneck | Arlington | NE | 888-805-9845 |
| Kirkham Michael | Johnna Roberts | Omaha | NE | 402-255-3827 |
| Labat-Anderson, Inc. | Sheri Rivera | Bellevue | NE | 402-291-2362 |
| 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 |
| Midwest Livestock Systems, Inc. | Dennis Boesiger | Beatrice | NE | 402-223-5281 |
| MILCO Environmental Services, Inc. | Chris A. Miller | Kearney | NE | 308-237-5923 |
| Montgomery Watson | Michael Geringer | Des Moines | IA | 515-253-0830 |
| Nebraska Safety Council, Inc. | Laurie Klosterboer | Lincoln | NE | 402-483-2511 |
| NLK Engineering, Inc. | Norman Klocke | Cedar Rapids | IA | 319-396-3140 |
| 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 |
| Professional Environmental Solutions | Vaden Hellerich | Valparaiso | NE | 402-817-3942 |
| RDG Geoscience & Engineering, Inc. | Bob Kalinski | Omaha | NE | 402-894-2678 |
| Rocky Mountain Pump Service, Inc. | David Weinert | Scottsbluff | NE | 308-632-5545 |
| Sand Livestock Systems, Inc. | John Csukker | Columbus | NE | 402-564-1211 |
| Sear-Brown | Greg Woodward | Golden | CO | 303-271-9398 |
| Seneca Environmental Services, Inc. | Dustin Cruikshank | Omaha | NE | 402-431-0340 |
| Servi-Tech Laboratories | Brian Shreve | Hastings | NE | 800-468-5411 |
| Servi-Tech Laboratory | Fred Vocasek | Dodge City | KS | 316-227-7509 |
| Settje Agri-Services & Engineering, Inc. | Dean Settje | Raymond | NE | 402-783-2100 |
| Snyder Engineering | Richard Snyder | Columbus | NE | 402-563-2236 |
| Solstice Company, Inc. | Pete Mackenhaupt | Omaha | NE | 402-730-0367 |
| Stanley Consultants, Inc. | Mick Durham | Coralville | IA | 319-626-3990 |
| Sverdrup Civil, Inc. | Mike Hill | Overland Park | KS | 913-663-2101 |
| 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. | Barry Boyd | Omaha | NE | 402-493-4800 |
| The Shipley Group | Sid Allen | Woods Cross | UT | 801-298-7800 |
| TriState Environmental Services | Mark O'Harrow | Sioux City | IA | 712-276-2854 |
| University of Nebraska | Michael Brumm | Concord | NE | 402-584-2816 |
| 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 |
| 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 |