Ahern is a mechanical and fire protection contractor specializing in HVAC, Plumbing, Building Controls, Sprinkler, Extinguisher & Alarm and Fabrication for construction and service projects. Founded in 1880, the company has over 1,700 employees servicing commercial and industrial customers across the United States. We partner on new construction or retrofit projects, service existing facilities, and provide prefabricated systems while reducing client risk on projects of all sizes. Ahern's Core Purpose: To create and maintain systems that save lives, improve the environment, and ensure personal comfort and well-being. For additional Company information, please visit jfahern.com. For information on starting a career with us, please visit aherncareers.com. Want job alerts by email? Join Our Talent Community - https://career4.successfactors.com/careers?company=JFAhern
Looking for a particular Ahern employee's phone or email?
Ahern Questions
The Ahern annual revenue was $853.5 million in 2026.
Tony is the President and COO of Ahern.
673 people are employed at Ahern.
Ahern is based in Fond du Lac, Wisconsin.
The NAICS codes for Ahern are [238, 2382, 238220, 23, 23822].
The SIC codes for Ahern are [17, 179].
Top Ahern Employees
-
Tony
President and COO at Ahern
Fond du Lac, WI, US15+ -
Jace Hierlmeier
Chief Operating Officer at Ahern
Fond du Lac, WI, US34 -
Dustin Rusch
Chief Safety Officer at Ahern
Fond du Lac, WI, US25+ -
Jim Jarvis
Executive Vice President at Ahern
Fond du Lac, WI, US23 -
H. Mills
President at Ahern
Whitesburg, TN, US35+ -
Bob Fischer
Executive Vice President at Ahern
Menomonee Falls, WI, US15+ -
23 -
Tim Schneider
Executive Vice President at Ahern
Milwaukee, WI, US12 -
Thomas Wickersham
Regional General Manager at Ahern
Fond du Lac, WI, US24 -
Jerid Winkler
General Manager at Ahern
Fond du Lac, WI, US33
