Name of Company | Contact | City | State | Phone |
| Aquaterra Environmental Solutions, Inc. | Mike Miller | Omaha | NE | 402-884-6202 |
| ASW Associates, Inc. | Marshall Prichard | Lincoln | NE | 402-488-3983 |
| Bartlett & West Engineers, Inc. | Galen S. Lay | St. Joseph | MO | 816-364-3551 |
| Bay West, Inc. | Phil Dula | Lenexa | KS | 913-663-2915 |
| BE&K/Terranext | Steve Peck | Lakewood | CO | 303-914-1700 |
| Burns & McDonnell | Jim Foil | Kansas City | MO | 816-822-3180 |
| CAPE Environmental Management, Inc. | Dezso Linbrunner | Bellevue | NE | 402-291-8533 |
| Castle Construction Company | Kimberly D. Tate | Columbus | NE | 402-564-5554 |
| CH2M Hill | Bob Sink | Omaha | NE | 402-341-1258 |
| Coranco Great Plains, Inc. | Dan Blankenau | Wahoo | NE | 402-443-4340 |
| EA Engineering, Science & Technology | H. Lee Becker | Lincoln | NE | 402-476-3766 |
| Eneco Tech | John Lynch | Denver | CO | 303-861-2200 |
| Environmental Management Resource, Inc. | John Rademacker | Lincoln | NE | 402-441-3022 |
| Harding ESE | Tom Colwell | Lincoln | NE | 402-421-7755 |
| HDR Engineering | Tim Crockett | Omaha | NE | 402-399-1257 |
| IT Corporation | Doug Trail | Urbandale | IA | 515-252-0234 |
| Lashley Feedlot Development and Consulting | Bud Lashley | Curtis | NE | 308-367-4336 |
| Layne Western, division of Layne Christensen Company | Tom Correll | Valley | NE | 402-359-2042 |
| Liesch Associates, Inc. | Ken Olson | Plymouth | MN | 612-559-1423 |
| MACTEC Engineeringn & Consulting, Inc. | Tom Colwell | Lincoln | NE | 402-421-7755 |
| Montgomery Watson | Michael Geringer | Des Moines | IA | 515-253-0830 |
| Professional Environmental Solutions | Vaden Hellerich | Valparaiso | NE | 402-817-3942 |
| RD Todd & Associates | Robert Todd | Eagle | NE | 402-781-2936 |
| Roy F. Weston, Inc. | Rodney Kirch | Vernon Hills | IL | 847-918-4149 |
| Roy F. Weston, Inc. | Ben Noller | Lakewood | CO | 303-980-6800 |
| Tagge Engineering Consultants | Darold Tagge | Holdrege | NE | 308-995-6677 |
| Tetra Tech, Inc. | Derek Dickinson | North Platte | NE | 308-534-5131 |
| 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 |