| Business | Phone |
| Otter Tail Power Co 171 N Main St, Garrison 58540 | (701) 463-2285 |
| Otter Tail Power Co Highway 37 W, Garrison 58540 | (701) 463-2455 |
| Mc Lean Electric Co-Op Inc 4031 Highway 37 Byp Nw, Garrison 58540 | (701) 463-2291 |
| Mc Lean Electric Coop Po Box 399, Garrison 58540 | (701) 337-5303 |