PFAS-credentialed compliance consultants that serve Illinois. Listings include both firms headquartered in Illinois and out-of-state firms with active Illinois project coverage. See the Illinois compliance page for contamination data and regulatory deadlines that drive this work.
Employee-owned engineering and environmental consulting firm with a dedicated PFAS practice; particularly active on Minnesota industrial and municipal PFAS sites including 3M-area work and treatment s...
Employee-owned engineering and construction firm with PFAS treatment design, AFFF replacement programs at airports and military bases, and PFAS destruction technology evaluation. Active prime on DoD A...
Employee-owned A/E firm with a national water practice that has designed PFAS treatment systems (GAC, IX, RO) for multiple U.S. utilities. Active in UCMR-5 sampling support and EPA MCL compliance plan...
Public-health and water testing organization headquartered in Ann Arbor. PFAS lab services plus NSF/ANSI 53 and 58 certification of treatment devices for PFOA/PFOS reduction.
Environmental science and engineering firm specializing in sediment and water resources with growing PFAS practice covering site investigation, fate-and-transport modeling, and remedial design for PFA...
International environmental consultancy with a U.S. PFAS practice covering source investigations, ESA due diligence, regulatory navigation, and treatability evaluations. Active across MN-based industr...
National environmental and water resources consultant with PFAS site assessment, soil/groundwater remediation, and treatment system design services. Provides PFAS compliance support for industrial cli...
Wisconsin-based municipal engineering firm specializing in water and wastewater with active PFAS treatment evaluations and MCL compliance planning for Wisconsin and Upper Midwest utilities.
Specialty EHS consultancy with a well-known PFAS practice covering source investigations, litigation support, fate and transport, and treatability studies. Frequently retained by industrial and Fortun...
Global engineering consultancy with U.S. water practice supporting PFAS treatment evaluations, pilot studies, and UCMR-5 compliance for municipal utilities. Active in northeastern U.S. PFAS treatment ...
Employee-owned engineering and design firm with municipal water practice supporting UCMR-5 sampling, PFAS treatment planning, and MCL compliance for community water systems across the Midwest and Moun...
Materials characterization and environmental forensics lab offering PFAS analysis in environmental and industrial matrices, including consumer-product and AFFF source attribution work. Supports litiga...
Wisconsin municipal engineering firm. Water and wastewater system planning, PFAS treatment evaluations, and DNR-coordinated compliance work.
Employee-owned national geotechnical and environmental consulting firm with PFAS site assessment, Phase II investigation, and remedial design services. Active across DoD, industrial, and airport PFAS ...
EHS consulting firm offering PFAS regulatory compliance, TSCA reporting (PFAS Section 8(a)(7)), air emissions assessment, and ITRC-guidance support. Major presence across TX, FL, and the Southeast.