PFAS-credentialed site assessment & remediation that serve Washington. Listings include both firms headquartered in Washington and out-of-state firms with active Washington project coverage. See the Washington compliance page for contamination data and regulatory deadlines that drive this work.
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 drilling and in-situ remediation services contractor with PFAS site investigation, high-resolution site characterization, and injection-based treatment delivery. Self-performs d...
Top-5 global engineering firm with deep PFAS practice — treatment system design-build, AFFF investigation at DOD installations, and regulatory consulting.
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...
PFAS treatment technology specialist providing ion exchange and synthetic media systems for groundwater, wastewater, and AFFF rinsate treatment. Now part of Montrose Environmental with deployed system...
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.
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...
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...
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 ...