Phase I/II ESA, AFFF impact investigations, and soil/groundwater PFAS remediation across federal, industrial, and brownfield sites.
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...
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...
Self-performing remediation contractor with significant AFFF/PFAS site experience at DoD installations and Superfund sites. Provides soil excavation, dewatering, and on-site treatment systems for PFAS...
Major federal contractor for DOD AFFF-impact investigation, IRP/MMRP site work, and PFAS remediation under USACE and AFCEC IDIQs.
Michigan environmental consulting firm. Notable PFAS work on the Wolverine Worldwide / 3M tannery contamination cases in Belmont and northern Kent County.
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...
Environmental and infrastructure services firm headquartered in Baton Rouge, Louisiana. Its research group develops and tests PFAS treatment, including ion exchange resin regeneration and destruction,...
Lincoln, Rhode Island engineering firm with a Hartford, Connecticut office. Engineer for Plainville, Massachusetts' $26.3M PFAS water treatment plant and operates PFAS groundwater remediation using ac...
Pennsylvania environmental consulting firm. PFAS Phase II investigations, groundwater monitoring, and Act 2 / Land Recycling Program submissions.
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...
Engineering and environmental consulting firm with offices in Greenville, South Carolina; Nashville, Knoxville and Johnson City, Tennessee; and Bridgeport, Charleston and Martinsburg, West Virginia. O...
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.
Mid-Atlantic geotechnical and environmental consulting firm. Phase I/II ESAs including PFAS scope for North Carolina sites.
Environmental consulting and engineering firm headquartered in Memphis, Tennessee, with offices including Nashville and Knoxville, Tennessee; Madison/Huntsville, Alabama; Bowling Green, Kentucky; Jack...
Gainesville, Florida environmental consulting firm with offices in Orlando, Tallahassee and Tampa and a Chicago-area office in Lombard, Illinois. Conducts PFAS site investigations and develops treatme...
Stow, Ohio environmental firm with Florida regional offices in Fort Lauderdale and Tampa. Offers PFAS field sampling and remediation, treatment and disposal services.
Sustainability and environmental consultancy with a global PFAS service line — site investigation, product-stewardship advisory, and CERCLA/regulatory positioning support.
Engineering and environmental firm founded in Freeport, Illinois, with seven Illinois offices and three in Iowa. Offers PFAS site assessment, water treatment design and Illinois EPA compliance support...
Hartford, Connecticut engineering firm with offices in New Haven and Providence. PFAS work includes the Eastern Connecticut Fire School AFFF investigation and a PFAS wastewater sampling protocol for a...
Global engineering firm with significant U.S. PFAS investigation and remediation work, including AFFF impact assessments and industrial-site liability evaluations.
Northeast-focused geotechnical and environmental firm with established PFAS practice covering Massachusetts MCP and New Hampshire/Vermont/Maine state PFAS programs. Performs site investigation, remedi...
Environmental and geotechnical consultancy with a dedicated PFAS practice. Offices include Wethersfield CT, Portland OR and Honolulu HI.
North Carolina environmental consultancy with notable Cape Fear / GenX-area PFAS investigation experience. Phase I/II, groundwater, and brownfield work.
Austin-based geoscience and engineering firm with New Mexico offices in Albuquerque and Carlsbad. Has a PFAS and emerging contaminants practice for water utilities, including PFAS well-risk assessment...
Global engineering and EPC firm with PFAS treatment design, site investigation, and regulatory advisory work across federal and municipal sectors.
Self-performing remediation contractor with multiple PFAS soil and groundwater projects at DoD AFFF release sites. Provides treatability studies, pilot testing, and full-scale PFAS treatment system co...
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...
Tucson-headquartered hydrogeology firm with Phoenix and Flagstaff offices. Investigates PFAS occurrence, sources and migration affecting water providers' supply wells.
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...
Michigan-based engineering and environmental consulting firm. PFAS site investigation and Phase II ESA work under EGLE's Part 201 program.
Athens, Georgia environmental consulting firm. Offers PFAS site assessments and PFAS phytoremediation feasibility analyses, pilot studies and corrective actions.
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.
Engineering and environmental services firm headquartered in Raleigh, North Carolina, with offices in South Carolina (Charleston, Columbia, Greenville, Spartanburg, Florence), Huntsville, Alabama, Cha...
New Hampshire-based environmental engineering firm with active PFAS site characterization and remedial design work across New England. Provides PFAS treatment evaluation, groundwater modeling, and reg...
Environmental remediation and industrial hygiene firm headquartered in Baton Rouge, Louisiana, with offices in Mandeville and Shreveport, Louisiana; Jackson, Mississippi; Memphis and Nashville, Tennes...
Seattle-based geotechnical and environmental firm with Fairbanks and Anchorage offices. Evaluates PFAS at Alaska DOT&PF airports and investigated PFAS at the Fairbanks Regional Fire Training Facility,...
Multi-discipline engineering firm with combined municipal water treatment and remediation practices. Active in PFAS pilot studies, design-build, and Brownfields assessment.
Science and engineering consulting firm headquartered in Greenville, South Carolina, with offices in Cary, North Carolina and Lexington and Pikeville, Kentucky. States that its engineers and scientist...
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.
Orlando-headquartered engineering and environmental consulting firm. Performs PFAS site assessments including soil, groundwater, surface water and potable water sampling.
Ohio-headquartered environmental consulting firm with PFAS investigation, brownfield assessment, and remediation services across the Midwest.
Engineering and operations firm with offices in Providence RI, Middletown CT, Tampa FL, Duluth GA, St. Charles MO and three Montana cities. Designed and built the University of Rhode Island's interim ...
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.