| Business | Phone |
| Energy Concepts 321 Valley View Dr Se, Willmar 56201 | (320) 235-9079 |
| Nelson Construction Co Inc 223 Benson Ave E, Willmar 56201 | (320) 235-4123 |
| Normen Builders Po Box 3054, Willmar 56201 | (320) 894-8893 |
| Ter Wisscha Construction 1550 Willmar Ave Se, Willmar 56201 | (320) 235-1664 |
| Sullivan Building 613 25th St Se, Willmar 56201 | (651) 261-3364 |