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Environmental Services | 2018

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”.
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Add-On Acquisitions: Smith Management Group ("SMG" - 2020) |  Environmental Strategy Consultants, Inc. ("ESC" - 2020) |  Env Holding Corp ("EHC" - 2021)