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Positively impacting people through innovative facility solutions.


We Care

We care about exceeding the expectations of our clients and enriching the lives of our people.


We will commit to developing strong relationships through honesty and trust.


We believe that excellence and accountability are necessary characteristics that result in accomplishment for our employees and success for our clients.


We will provide the best solution by working together as coworkers, clients, and partners.

Smart Innovation

We will continue to innovate new products, technologies, and lines of service that provide superior client solutions and ensure company success.


To be the sought-after facility services consulting expert and employer of choice both regionally and beyond.


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

OBERNEL 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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