Ambition – Determination – Dedication


Our mission is to provide excellence in design, installation and service to all of our customers.

As of September of 2015 SWi, LLC has officially opened up the new office facility in Casper, Wyoming. SWi, LLC hopes to grow bigger each year and to encompass more areas by adding new locations in Wyoming for serving the community and providing quality grade workmanship and products. The new Casper office is the next step in SWi, LLC’s plan to provide more of our services locally.

The Olson’s have been providing quality service since 1994. Brothers Mark and Carl Olson founded the company, and their brother Alan Olson joined them recently as a new co-owner.

I’ve always found that anything worth achieving will always  have obstacles in the way and you’ve got to have that drive and determination to  overcome those obstacles on route to whatever it is that you want to  accomplish. – Chuck  Norris

We sincerely appreciate your work, as it was fast, reasonable, and very professional.  We were wondering if you could recommend an electrician in the area that has the same qualities as you do.

-Tim and Connie Zissler

Background & History

Mark and Carl started out by building a few small fences for neighbors and friends while Carl pursued a journeyman electrician license and Mark studied architectural engineering at the University of Wyoming in Laramie, Wyoming. In January 2002, Mark and Carl decided to make their dreams of owning their own business a reality. They began to advertise, and soon the calls were coming in. Initially, Mark worked full-time for the company, while Carl worked part time and kept his job as an electrician. Carl joined the business on a full-time basis in the spring of 2003.

Alan, who worked for the company from the beginning, later moved to Montana, where he started his own business. He recently returned to Powell and merged his North Dakota-based company with his brothers Wyoming based company.

SWI’s diversity has helped the company to thrive and in 2014 moved into our new facility at 988 Road 8, in Powell Wyoming. The company employs a staff of 15 to 30 employees, and it continues to grow through numerous contracts with mineral companies, state, and federal entities plus their loyal base of customers in Wyoming, Montana, North Dakota and beyond.

Mark and Alan are proud of their reputation for quality installations and excellent customer service. The company strives to be the leader in the industry with ongoing training and strong professional alliances with contractors and suppliers.