Engineering News-Record Ranks Ahern Top 600 Specialty Contractor

Fond du Lac, WI, October 27, 2025 - Engineering News-Record (ENR) has listed Ahern as a ‘Top 600 Specialty Contractor’ of 2025. Ahern was ranked 78th this year. The annual ranking is determined by sales revenue.
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Smart Monitor™ - powered by Clockworks Building Analytics

Ahern Unveils New Controls Integration Smart Monitor™

Ahern is pleased to announce their latest building automation systems’ integration, Smart Monitor™. Smart Monitor™ is a proactive analytics program that predicts potential issues and delivers solutions before problems escalate
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Ahern Contributes to Ten of the Top Projects of 2024

The Daily Reporter’s annual “Top Projects” competition honors outstanding construction projects across Wisconsin. The winning projects overcame notable challenges, drove effective teamwork, utilized innovative building techniques, and positively impacted local communities around the...
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Fp service

Ahern Provides Expanded Offerings for Sprinkler Inspections and More in a New Market

Ahern has expanded into the new market of Peoria, IL. With 145 years of experience, Ahern has the knowledge and background to deliver exceptional fire protection services. Ahern’s cadre of capabilities includes the design, installation, inspection and repair of fire protection...
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2024 Build Awards_the Hub

Ahern Receives 2024 BUILD Wisconsin Award for Exceptional Specialty Contracting Work

The Associated General Contractors of Wisconsin (AGC), the most widely respected construction association in the country, has awarded Ahern with a 2024 BUILD Wisconsin award. The esteemed award recognizes Ahern’s specialty contracting work for the HUB, a premiere enterprise center for...
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ENR Top 600

ENR Ranks Ahern In Their Annual Top 600 Specialty Contractor List

Engineering News-Record (ENR) has listed Ahern as a ‘Top 600 Specialty Contractor’ of 2024. Ahern was ranked 77th this year, moving up after ranking 86th in 2023. The annual ranking is determined by a company’s construction revenue from a subcontracting capacity.
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Enr Top 200

Ahern Ranks on Engineering News-Record's Top 200 Environmental Firms

Engineering News-Record (ENR) has listed Ahern as a ‘Top 200 Environmental Firm’ of 2024. Ahern was ranked 156 on the list. The annual ranking is determined by a company’s gross revenue from environmental services and products to domestic and international markets.
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Top Projects of 2023

Ahern Contributes to Fourteen of the Top Projects of 2023

The Daily Reporter’s annual “Top Projects” competition honors outstanding construction projects across Wisconsin. The winning projects overcame notable challenges, drove effective teamwork, utilized innovative building techniques, and positively impacted local communities around the...
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Ahern Announces New Shareholder and Board Member Grant Nadler

Executive Vice President of Ahern’s Northern Wisconsin business Grant Nadler will become a shareholder and member of the Board of Directors at J. F. Ahern Co. effective Jan. 1, 2024.
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ENR Top 600

Engineering News-Record Ranks Ahern Top 600 Specialty Contractor

Engineering News-Record (ENR) has listed Ahern as a ‘Top 600 Specialty Contractor’ of 2023. Ahern was ranked 86th this year, moving up after ranking 88th in 2022.
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Deloitte Wisconsin 75

Ahern Ranked On Deloitte's Wisconsin 75 Listing For 21st Consecutive Year

For the 21st consecutive year, Ahern was featured on Deloitte’s Wisconsin 75, a ranking that salutes the 75 largest private companies in Wisconsin based on sales revenue. This year, Ahern was ranked 54 on the list.
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AGC Build Awards Logo 2023

Ahern Receives 2023 BUILD Wisconsin Award For Exceptional Specialty Contracting Work

The Associated General Contractors of Wisconsin (AGC), the most widely respected construction association in the country, has awarded Ahern with a 2023 BUILD Wisconsin award.
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Ahern ENR 2023

Engineering News-Record Ranks Ahern Top 200 Environmental Firm

Engineering News-Record (ENR) has listed Ahern as a ‘Top 200 Environmental Firm’ of 2023. Ahern was ranked 154 on the list, up from placing 160 in 2022. The annual ranking is determined by a company’s gross revenue from environmental services and products to domestic and international...
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From Youth Apprentices to Full-Time Employees: It’s Signing Day

J. F. Ahern Co. is proud to host a signing day event where eight youth apprentices will transition to full-time pre-apprentice employees. The soon-to-be high school graduates, their families, school counselors, shop teachers and supervisors will all be present for the signing – which...
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Top Projects of 2022

Ahern Contributes to Ten of the Top Projects of 2022

The Daily Reporter's annual "Top Projects" competition recognizes projects throughout Wisconsin that faced and overcame significant challenges and positively impacted the local communities. Ahern contributed at least one trade to 10 of the 42 winning projects.
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Ahern Provides Rapid Access Services in Wisconsin through Knox Partnership

Ahern is pleased to announce that it is now an authorized local Knox Trusted Partner, servicing and fulfilling rapid access needs to commercial customers within corresponding fire department jurisdictions throughout Wisconsin.
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Wisconsin Firefighters Recognize Ahern

In October, Ahern was awarded the Professional Fire Fighters of Wisconsin Charitable Foundation’s corporate responsibility award.
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Ahern ENR Top 600 2022

Ahern Named an ENR Top 600 Specialty Contractor

Ahern has been ranked as one of ENR’s Top 600 Specialty Contractors for 2022. Each year, Engineering News-Record (ENR) chooses the top specialty contractors across the United States based on annual results provided by each participating company.
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Ahern ENR Midwest 2022

Ahern Ranks in ENR Midwest’s Top Specialty Contractors

Engineering News-Record has named us one of the Midwest’s Top Specialty Contractors in 2022. Out of the largest specialty contractors in the 11-state Midwest region, Ahern ranked fourth, two spots up from last year.
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Ahern Deloitte WI 75 2022

Ahern Named to Deloitte Wisconsin 75

Ahern is proud to retain the 54th spot on Deloitte’s prestigious Wisconsin 75 listing
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