PFAS-credentialed site assessment & remediation that serve California. Listings include both firms headquartered in California and out-of-state firms with active California project coverage. See the California compliance page for contamination data and regulatory deadlines that drive this work.
Remediation technology manufacturer and licensed applicator of PlumeStop colloidal activated carbon for in-situ PFAS plume treatment. Has documented PFAS field applications at AFFF sites in the US, EU...
Major federal contractor for DOD AFFF-impact investigation, IRP/MMRP site work, and PFAS remediation under USACE and AFCEC IDIQs.
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.
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 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...
Largest hazardous waste management firm in North America with dedicated PFAS services including AFFF collection, transport, and disposal at incineration facilities. Provides emergency response for PFA...
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.
Environmental laboratory and PFAS treatment company formed from Enthalpy Analytical, Vista Analytical Laboratory and ECT2. Runs PFAS analysis for drinking water, groundwater and soil, and supplies ion...
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...
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...
National environmental drilling and in-situ remediation services contractor with PFAS site investigation, high-resolution site characterization, and injection-based treatment delivery. Self-performs d...
Albuquerque-based hydrogeology and environmental firm, a subsidiary of Geo-Logic Associates. Contracted by the New Mexico Environment Department to define PFAS impacts to groundwater and surface water...
Employee-owned environmental consulting and engineering firm. PFAS UCMR sampling support, AFFF site investigation, and compliance planning for water systems and DOD clients.
Sustainability and environmental consultancy with a global PFAS service line — site investigation, product-stewardship advisory, and CERCLA/regulatory positioning support.
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.
East Coast engineering and environmental firm. PFAS site investigation and remediation work across Pennsylvania, New Jersey, and New York.
Federal services contractor with major DoD environmental remediation portfolio including PFAS investigation, remedial action, and AFFF transition support at Air Force, Navy, and Army installations. Ho...
Native American-owned environmental remediation firm with DOE and DoD prime contracts including PFAS investigation and remediation at federal sites. Performs site characterization, groundwater treatme...
Environment & Health practice with a long PFAS toxicology and site-investigation track record, including expert-witness work in major PFAS litigation.
Environmental and management consulting firm with a heavy New Jersey and New York footprint. Significant PFAS site characterization and litigation-support work.
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 ...
WSP acquired Wood's E&IS practice in 2022. Global PFAS investigation, AFFF site work, and treatment evaluation capabilities across federal and private-sector clients.
169 California water systems tested above the EPA limit for PFOA or PFOS, 131 of them on average. The California market brief (PDF plus a workbook with operator contacts) is a one-time $149 download. See a sample →