Mainline Environmental Expands Its Reach: Announces Acquisition of HSE Consulting Services

MINE HILL (November 19, 2025) – Mainline Environmental, a leading full-service environmental solutions company, today announced the acquisition of HSE Consulting Services, LLC, a highly respected environmental, health and safety consulting and laboratory services firm based in Cicero, New York. This strategic move significantly enhances Mainline’s ability to deliver comprehensive, technology-driven environmental solutions across New York State. The acquisition strengthens Mainline’s capabilities in delivering full-service environmental solutions to property owners, school districts, municipalities, commercial, manufacturing, utilities, developers, contractors and manufacturing clients. By integrating HSE’s expertise in safety, industrial hygiene, indoor air quality testing and laboratory analysis with Mainline’s established services in asbestos, lead, mold, remediation, training and compliance consulting, clients will now benefit from a unified, technology-enabled platform to manage their entire EHS risk stack.

“We are thrilled to welcome the talented HSE Consulting team to Mainline,” said Dan McGowan, CEO of Mainline Environmental. “Brian King and his team have built an exceptional reputation over 25 years.

The combined companies will offer an unmatched depth of service, from initial testing and laboratory analysis to full-scale remediation and compliance training, all supported by a streamlined client experience. 

“Joining forces with Mainline opens the door to scaling our services and leveraging digital tools that enhance transparency, reporting and compliance for our clients,” said Brian C. King, President of HSE Consulting Services. “I’m especially excited for school facilities and property owners subject to lead-based-paint requirements, asbestos management and indoor air quality oversight, because our combined capabilities mean one partner, one platform and one trusted roadmap to maintain safe and healthy living and working spaces while staying ahead of regulatory obligations.”

HSE Consulting, founded in 1997, has earned a strong reputation throughout New York State for delivering trusted EHS services. Combining with Mainline enables enhanced regional coverage and service offerings, ensuring clients receive streamlined, high-quality support across the entire environmental health and safety spectrum.

HSE Consulting will continue operating seamlessly as part of the Mainline organization, ensuring clients experience continuity, expertise and the enhanced benefits of the combined platform.

About Mainline Environmental

Mainline Environmental is a leading full-service environmental solutions company serving property owners, school districts, municipalities and commercial clients. We support testing, compliance, remediation, training and laboratory needs to help enable healthy environments where you live, work and play.

About HSE Consulting Services, LLC

HSE Consulting Services, LLC is a multidisciplinary environmental, health and safety consulting firm founded in 1997 and based in Cicero, New York. The firm offers industrial hygiene, asbestos and mold consulting, indoor air quality testing, occupational health and safety support and oversight services, training programs and laboratory analysis.