Go Back
ALL4
Environmental Services | 2018
Acquired by a leading private equity firm in 2025
ALL4, headquartered in the greater Philadelphia area, with additional offices throughout the United States, was founded in 2002 by four industry-leading air quality experts: Bill Straub, Kevin Hickey, John Egan, and Dan Holland. The Company provides mission-critical air quality support and consulting services to diverse industries including pulp & paper, oil & gas, food and beverage, waste management, power generation, and automotive. All4 is an award-winning, technical leader in the industry and is a nationally recognized “Best Place to Work”.
Acquired by a leading private equity firm in 2025
ALL4, headquartered in the greater Philadelphia area, with additional offices throughout the United States, was founded in 2002 by four industry-leading air quality experts: Bill Straub, Kevin Hickey, John Egan, and Dan Holland. The Company provides mission-critical air quality support and consulting services to diverse industries including pulp & paper, oil & gas, food and beverage, waste management, power generation, and automotive. All4 is an award-winning, technical leader in the industry and is a nationally recognized “Best Place to Work”.
More Details
Add-On Acquisitions: Smith Management Group ("SMG" - 2020) | Environmental Strategy Consultants, Inc. ("ESC" - 2020) | Env Holding Corp ("EHC" - 2021) | Whatcom Environmental Services ("Whatcom" - 2023) | Laragon Sustainability Solutions ("Laragon" - 2024) | Capaccio Environmental Engineering, Inc. ("Capaccio" - 2024)
