Philadelphia, PA — October 20, 2026 — ALL4, a global environmental consulting firm, is proud to announce its inclusion in Engineering News-Record’s (ENR) 2026 Top 200 Environmental Firms, ranking No. 155, up four spots from 2025. This recognition reflects ALL4’s continued growth, expanding capabilities, and commitment to delivering innovative environmental solutions to clients across a broad range of industries.
Engineering News-Record (ENR) is a leading publication covering the engineering and construction industries. Its annual Top 200 Environmental Firms list is a widely recognized industry benchmark, ranking firms based on revenue generated from environmental services. The rankings highlight companies making a significant impact in the environmental sector, including environmental consulting, engineering, remediation, and related services.
ALL4’s improved ranking underscores the firm’s continued investment in technical expertise, strategic growth, and expanded service offerings. Through organic growth, strategic acquisitions, and a growing global presence, ALL4 continues to strengthen its ability to help clients navigate increasingly complex environmental, health, safety, and sustainability challenges.
“Moving up four spots in ENR’s Top 200 Environmental Firms ranking is an exciting achievement and a testament to the dedication and expertise of our team,” said William Straub, CEO of ALL4. “Our growth reflects the trust our clients place in us, the strength of the relationships we’ve built, and our commitment to providing practical, technically sound solutions. We’re proud of how far we’ve come and look forward to the opportunities ahead.”
Recognition on ENR’s Top 200 list places ALL4 among the industry’s leading environmental firms and reinforces the company’s position as a trusted partner to organizations seeking comprehensive environmental consulting and compliance solutions.
About ALL4
ALL4 is a global environmental consulting firm providing strategic solutions in air quality, environmental compliance, environmental health and safety, digital solutions, acoustics, sustainability, and other specialized environmental services. With technical experts across North America, Latin America, and Europe, ALL4 partners with clients to solve complex challenges, manage regulatory obligations, and achieve their business and environmental goals.
Learn more at www.all4inc.com.
