NAICS 541620 · Washington

Certified Women-Owned Environmental Consulting Services in Washington

4 certified women-owned vendors in Washington under NAICS 541620 (Environmental Consulting Services), each with an active WOSB or EDWOSB certification reported from the U.S. SBA Small Business Search.

4 certified vendors · ranked by certification recency & profile depth

01ENVIRONMENTAL REGULATORY SYSTEMS, LLC

Environmental & Waste Services · Pasco, Washington
WOSB

Expert environmental and regulatory compliance services to federal agencies, prime contractors, and regulated facilities. Our team supports projects from new facility startup through legacy site cleanup, with specialized expertise in hazardous, mixed, and radioactive waste programs in highly regulated environments. Services include multimedia permitting and compliance, CAA operating permits, NPDES, water permits, RCRA hazardous waste permits, CERCLA, and other compliance support; environmental program oversight; regulatory document review; regulatory reporting; permit application material submission; compliance oversight; corrective action; remediation support; and contractor performance monitoring. Personnel bring direct experience supporting complex, high-hazard operations and large-scale cleanup efforts, delivering defensible, audit-ready solutions that integrate regulatory requirements into ongoing operations while minimizing risk, cost, and schedule impact.

03STELL ENVIRONMENTAL ENTERPRISES INC

Environmental & Waste Services · Mountlake Terrace, Washington
WOSBSDVOSBVOSB

Environmental Services: HTRW, Ecological Engineering, NEPA, Cultural, Natural, site characterization and assessments, geologic and hydrogeologic studies, remediation, MEP engineering, permitting, wetlands, NEPA, cultural resources, smart infrastructure, FCA, Energy and Water Planning Studies

04PLATEAU GEOSCIENCE GROUP LLC

Environmental & Waste Services · Battle Ground, Washington
WOSBEDWOSB

Geophysical surveys, ground penetrating radar, environmental investigation and remediation, landfill closure and monitoring, site investigation for property development or engineering projects, stormwater engineering and management, stormwater treatment design and installation, stormwater compliance, environmental permitting and compliance, environmental media sampling, database development and management, project management, small business certified subcontractor.