About

We Are The Experts
SDN Communications business building and sign

SDN Communications is the premier business-to-business fiber internet service provider in South Dakota and southwestern Minnesota.

Established in 1989, the organization has more than 30 years of experience and 115 employees to provide quality service, create new and innovative services and return value to our member companies and customers - it's why we exist.

We're passionate about customer service and bringing a human touch to technology.

SDN’s main offices are part of a two-building campus in Sioux Falls along West 10th Street. Employees also work out of the data center located just northwest of town along Interstate 90 and an office in Rapid City.

Today, the network is made up of more than 50,000 miles of fiber in eight states, including South Dakota, North Dakota, Nebraska, Minnesota, Iowa, Montana, Wyoming, and Colorado.

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Get to know us even better

  1. SDN promotes Greg Robinson to lead West River business development
    Greg Robinson has been promoted to lead business development for SDN Communications in West River South Dakota.
  2. SDN's summer program offers hands-on experience for five interns
    At SDN Communications, our interns don't just observe — they jump right into the action, working alongside our team as if they were full-time employees.
  3. SDN employee sees the benefit of hands-on opportunities at Mitchell Tech
    “There’s so many different ways you can go with broadband knowledge. There are so many places to take that degree."