Photograph of new NorthWestern Energy Building by NorthWestern Energy photographer Susan Malee.

NorthWestern Corporation, d/b/a NorthWestern Energy, is an investor-owned utility and one of the largest providers of electricity and natural gas in the northern tier states. We serve approximately 701,000 customers – 421,655 electric and 279,184 natural gas and propane – in Montana, South Dakota and Nebraska. Classified as a “mid-sized” utility by most industry standards, our service territory size is one of the largest in the country. The foundation of NorthWestern’s energy business dates back to 1923, with the start of the utility operations in a few communities in South Dakota and Nebraska. Our electric system serves 297 communities and surrounding rural areas covering two-thirds of Montana, eastern South Dakota, and Yellowstone National Park in Wyoming. Our natural gas system serves 168 communities and surrounding rural areas in Montana, South Dakota and central Nebraska. NorthWestern Energy has approximately 1,592 (as of 9/26/17) full-time employees. Our corporate headquarters is in Sioux Falls, South Dakota, with operational headquarters in Butte, Montana, and Huron, South Dakota.   We are listed on the New York Stock Exchange under the ticker symbol NWE.

Operational Statistics

  • Montana Operations
    • Electric transmission and distribution services to approximately 358,855 customers in 187 communities
    • Electric transmission lines – 6,700 miles
    • Electric distribution lines – 17,650 miles
    • Natural gas transmission and distribution services to approximately 190,900 customers in 105 communities
    • Natural gas transmission lines – 2,100 miles
    • Natural gas distribution lines – 5,100 miles
    • Approximately 1,300 employees
  • Economic Development

Economic vitality is crucial to Montana’s future, and for many years, NorthWestern Energy has held a strong commitment to the communities it serves. Community Works encompasses NorthWestern Energy’s tradition of funding community activities, charitable efforts and economic development within its service territory. In 2016, NorthWestern

Energy’s Community Works programs provided more than $2 million in funds for community sponsorships, charitable contributions and economic development organizations in Montana, South Dakota and Nebraska. NorthWestern Energy is committed to serving as a meaningful and dedicated contributor to the economic development process, and we see our role as “energizing Montana’s economy.” Our emphasis is on “Building Montana’s

Future,” and the mission of our Economic Development team is to help retain existing jobs in Montana, promote business expansion and recruit new businesses to the state. Our economic development employees assist site selection consultants, economic development agencies, government agencies, existing businesses and potential new businesses. They are actively involved in economic development initiatives at the local, state, regional and national levels. They can answer questions about utility rates, availability of utility distribution and transmission services, utility operations, power reliability, energy supply, and energy efficiency programs.

For more information on Northwestern Energy:

Join the conversation on their social media pages
Twitter: @NorthWestern_MT
Instagram: @Northwestern_Energy
Or watch their newest video promoting our beautiful community.


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