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About Us

Whether a partner on new construction/retrofit projects, servicing existing facilities, or providing prefabricated piping; Ahern consistently reduces its clients’ risk for projects and service requests of all sizes. With approximately 1,400 employees specializing in pipe fabrication, mechanical, and fire protection contracting, we offer measurable expertise and experience:

  • Over 70% of all Ahern employees hold professional certifications.
  • Over 29% of our 1,400 employees have 10+ years of industry experience.
  • Over 40% of Ahern office employees hold one or more college degrees.
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John Ahern
Chairman
B.S. in Economics, University of Wisconsin - Madison. Industry professional since 1959, joined Ahern in 1959.
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Tripp Ahern
President and Chief Executive Officer
B.S. in Mechanical Engineering, Milwaukee School of Engineering. Industry professional since 1986, joined Ahern in 1988.
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Tony Ahern
Executive Vice President - Fabrication & Operations
B.A. in History, St. Norbert College, De Pere, WI. Industry professional since 1992, joined Ahern in 1992.
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Krista Ebbens
General Counsel/Corporate Secretary
B.A. in Anthropology, University of Iowa, J.D., University of Iowa. Holds state bar admissions in Wisconsin and Illinois. Industry professional since 2003, joined Ahern in 2013.
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Bob Fischer
Executive Vice President - Milwaukee Region
M.S. in Engineering Management, Milwaukee School of Engineering. B.S. in Achitectural Engineering, Milwaukee School of Engineering. Registered Professional Engineer - 1988. Industry professional since 1979, joined Ahern in 1979.
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Jace Hierlmeier
Executive Vice President - Ahern Fire Protection
MBA Finance and B.A. in Marketing, Lakeland College, Sheboygan. A.A.S. in Marketing, Northcentral Technical College, Wausau. Industry professional since 2000, joined Ahern in 2014.
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Jim Jarvis
Executive Vice President - Northern WI & Madison Regions
B.S. in Construction Administration, University of Wisconsin - Madison. Industry professional since 1989, joined Ahern in 1989.
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Tim Schneider
Vice President - Northeast Region
M.S. in Enviornmental Engineering, Milwaukee School of Engineering. B.S. in Architectural Engineering, Milwaukee School of Engineering. Industry professional since 2001, joined Ahern in 2001.
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Adam Wunderlin
Chief Financial Officer
Master of Professional Accountancy, University of Wisconsin - Whitewater. B.B.A in Accounting, University of Wisconsin - Whitewater. Licensed Certified Public Accountant since 2010. Industry professional since 2009, joined Ahern in 2011.
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Core Ideology

Ahern operates under a single Core Purpose: We create and maintain systems that save lives, improve the environment, and ensure personal comfort and well-being.

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History

Beginning as a small steam heat and plumbing shop in 1880, Ahern has since become one of the largest, most respected specialty contractors in the nation. For more than 130 years, we’ve focused on what matters most to clients to deliver value to their projects.

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Awards

While we’ve received numerous project and safety awards, our true success is measured by each and every client’s satisfaction and the well-being of our employees.

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