Wyoming Department of Transportation
United States Army Corp of Engineers
United States Department of Interior
- Bureau of Indian Affairs
- National Park Service
United States Department of Energy
Burlington Northern Railroad
Dakota Minnesota Eastern Railroad
MW Kellogg-Brown & Root Companies
Shell Mining
AMAX Coal Company
Atlantic Richfield
Cypress Coal Company
Peabody Coal Company
American Colloid Company
Midwest Development Corporation
Chen & Associates Engineers & Scientists
HKM & Associates
Brosz Engineering
Walmart
Country Pride Coop
CB&I Tank
Paradigm Enterprises
McConnel Excavating
CHS Harvest States
Land O Lakes
Wheat Growers
CC Hutchinson & Sons
Johnson Bros. Company
Flintco Constructive Solutions
Sutton Bay Resort
Graham Marsh Golf Design
Canadian Pacific Railroad
Rapid City, Pierre, & Eastern Railroad
Balfour Beatty
Glenn Barber & Associates
Victory Bible Camp
Black Hills State University Foundation
Aurora-Brule Rural Water
Anchors Away Resort
Cone Ag
Oahe Grain Corp
Sunshine Bible Academy