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.
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 firm with a substantial municipal water practice. PFAS treatment design, pilot studies, and SRF-funded project delivery.
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.
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.
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.
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.
Mid-size U.S. environmental consulting and engineering firm with PFAS site investigation, treatment design, and compliance practices across the Northeast and Midwest.