- Sioux Valley-Southwestern Electric Cooperative INC
- 47092 Sd Highway 34
- Colman, South Dakota 57017-6509
- Phone: 800-234-1960
- Number of Employees: 104
- Annual Receipts: $59,763,101
- Business Start Date: 1939
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- T And R Electric Supply Co. INC
- 308 Sw 3rd St
- Colman, South Dakota 57017-2016
- Phone: 605-534-3555
- Number of Employees: 185
- Annual Receipts: $39,000,000
- Business Start Date: 1961
- More Detail:
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