PFAS-credentialed compliance consultants that serve Wisconsin. Listings include both firms headquartered in Wisconsin and out-of-state firms with active Wisconsin project coverage. See the Wisconsin compliance page for contamination data and regulatory deadlines that drive this work.
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.
Wisconsin municipal engineering firm. Water and wastewater system planning, PFAS treatment evaluations, and DNR-coordinated compliance work.
Top-5 global engineering firm with deep PFAS practice — treatment system design-build, AFFF investigation at DOD installations, and regulatory consulting.
Global consultancy with one of the most-cited PFAS practices in industry. AFFF impact investigation, foam fractionation R&D, and litigation-support technical 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...
Nonprofit applied science organization developing PFAS destruction technologies including supercritical water oxidation (SCWO) and PFAS Annihilator systems. Conducts PFAS treatability studies and fiel...
Employee-owned engineering firm with a substantial municipal water practice. PFAS treatment design, pilot studies, and SRF-funded project delivery.
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...
Privately-held engineering firm with a deep municipal water practice. PFAS treatment evaluations, GAC and IX pilot studies, EC-SDC grant application support.
Water-utility-focused PFAS and treatment specialty consultancy. UCMR sampling, treatment evaluation, source water assessments, and SDWA compliance planning.
PFAS-treatment-specialty consultancy founded by ex-Hazen and Sawyer PFAS leaders. UCMR support, treatment evaluation, and regulatory compliance planning for water utilities nationwide.
Environmental engineering and applied science firm widely recognized as a PFAS R&D thought leader. Leading work on in-situ treatment, colloidal activated carbon, and AFFF site characterization.
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.
Global testing, inspection, and certification firm. PFAS analytical services across drinking water, wastewater, soil, and food packaging matrices.
Major federal contractor for DOD AFFF-impact investigation, IRP/MMRP site work, and PFAS remediation under USACE and AFCEC IDIQs.
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...
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 firm with significant U.S. PFAS investigation and remediation work, including AFFF impact assessments and industrial-site liability evaluations.
Global engineering and EPC firm with PFAS treatment design, site investigation, and regulatory advisory work across federal and municipal sectors.
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...
Environment & Health practice with a long PFAS toxicology and site-investigation track record, including expert-witness work in major PFAS litigation.
Multi-discipline engineering firm with combined municipal water treatment and remediation practices. Active in PFAS pilot studies, design-build, and Brownfields assessment.
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 ...
Mid-size U.S. environmental consulting and engineering firm with PFAS site investigation, treatment design, and compliance practices across the Northeast and Midwest.
Employee-owned environmental and engineering firm with a dedicated PFAS practice covering source investigations, fate and transport modeling, treatability studies, and ITRC-guidance-aligned site chara...