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. Get to know West River – Business Development Manager Greg Robinson
    Robinson has made it his mission to get the word out about SDN Communications’ business internet services for the Rapid City, Black Hills and Pierre area for almost seven years, and he was recently promoted to an expanded role.
  2. Chance meeting leads to new career for Sales Development Representative
    “She just had such positive energy." The first person to serve as Sales Development Representative at SDN Communications was discovered at her previous job the same day her future manager was pitching the idea for the new role.
  3. 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.