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To enrich the lives of our employees and exceed the expectations of our clients.

Our Values

We Care

We care about our people.
We care about the success and wellbeing of our employees, clients and the communities in which we live, work and play.


Always go above and beyond.
We will go out of our way for our clients to ensure their success. We value being responsive, listening and building trust with our clients.


Challenge the status quo.
We will not settle for the way things have always been done. We will embrace change to provide our clients with better solutions.


Be impeccable with your word.
Our lives and successes are defined by our relationships. Honesty is key to building and maintaining a solid relationship.


Always do your best.
We strive for perfection, but knowing that people make mistakes it is how we handle our mistakes that defines who we are.


Challenge yourself to do better and be better.
We will support continuous personal and professional growth in our employees and clients to better their lives.

ONE Partners


We will provide exceptional service for our clients.  Our commitment to our employees both personally and professionally will provide our communities with leaders.


We are looking for individuals that fit our culture! Check out our current opportunities!

ONE Timeline

Obermiller and Nelson start ONE

Established in 1992 by Mechanical Engineers Dave Obermiller and Jim Nelson.
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Jeff Splichal Becomes Partner

2003 - Mechanical Engineer Jeff Splichal Becomes Partner
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ONE Acquires Poykko Engineering

ONE acquires Poykko Engineering of Grand Forks, ND
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Christenson and Wavra Become Partners

In 2007, Jeremiah Christenson and Brent Wavra become partners.
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Dave Vig Becomes Partner

In 2008, Dave Vig joined ONE as the sixth partner.
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ONE Expands Into Minnesota

In 2011, ONE expands into Minnesota with an office in Alexandria.
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ONE Acquires KJ Schwartz Engineering

In 2012, ONE acquires KJ Schwartz Engineering in Bismarck, ND.
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Jeff Splichal Moves Into Semi-retirement

In 2015, Jeff Splichal happily moved into semi-retirement.
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ONE Expands Into Minneapolis

ONE makes the move to join the Minneapolis building construction scene.
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ONE Adds a Civil Engineering Department

2015– ONE adds a Civil Engineering Department with the leadership of Steve Schilke.
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Dave Obermiller Announces Early Retirement

In 2015, co-founder and partner Dave Obermiller announces his early retirement from ONE.
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Bartsch and Rector Become Partners

January 1st, 2016 - Electrical Engineer Andrew Bartsch and Mechanical Engineer Ned Rector Became Partners...
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ONE Merges with FJJ

Obermiller Nelson Engineering (ONE) is excited to announce that Duluth-based engineering firm, Foste...
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