| Company | Business Type |
# Employees |
| A & W Water | Water for Oil Field Service | 100 |
| Aqua Hot | Heating Systems for RVs | 55 |
| Bank of Colorado Operations | Processing Center | 22 |
| Barrons | Oilfield service, trucking, welding | 30 |
| BMC West | Truss manufacturing | 104 |
| Cade Drilling | Oil and gas well drilling | 50 |
| City of Fort Lupton | Municipal Government | 67 |
| Colorado Railcar | Luxury railcars, Diesel Mobile Unit (DMU) | 132 |
| Colorstar Growers | Floral Wholesaler | 300 |
| Eastern Colorado Well Service | Oil Field Service | 120 |
| Encana | Energy services | 60 |
| Flint Energy | Oilfield Construction | 75 |
| Fort Lupton Pizza Hut | Restaurant | 20 |
| Fort Lupton Post Office | 20 | |
| Golden Aluminum | Recycling and manufacturing | 175 |
| Gray Oil | Wholesale oil & gas, retail service & food | 67 |
| Halliburton | Oil Field Service | 350 |
| HOAD | Energy industry equipment | 200 |
| House of Smoke | Deli, smoked meat | 22 |
| Key Energy | Energy services | 100 |
| Leed Energy Service | Workover and completion services | 70 |
| Nelson Pipeline | Water/sewer lines | 82 |
| Rain For Rend | Solutions to water problems, tanks | 40 |
| Safeway | Grocery retail | 85 |
| Salud Family Health Centers | Health Care Provider | 87 |
| Branding Iron | Restaurant | 25 |
| W.W. F. | Over the Road Tires | 35 |
| Weld Re-8 Schools | School District | 360 |
