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.

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.