PFAS-credentialed compliance consultants that serve Colorado. Listings include both firms headquartered in Colorado and out-of-state firms with active Colorado project coverage. See the Colorado compliance page for contamination data and regulatory deadlines that drive this work.
Global consultancy with one of the most-cited PFAS practices in industry. AFFF impact investigation, foam fractionation R&D, and litigation-support technical work.
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.
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...
Employee-owned environmental engineering firm specializing in water and wastewater. PFAS treatability studies and full-scale design for U.S. utilities.
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...
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...
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...
Largest U.S. firm exclusively dedicated to water/wastewater engineering. Significant PFAS pilot and design work for California and Western U.S. utilities.
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...
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...
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 ...
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...
EHS consulting firm offering PFAS regulatory compliance, TSCA reporting (PFAS Section 8(a)(7)), air emissions assessment, and ITRC-guidance support. Major presence across TX, FL, and the Southeast.