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About Us

DH Environmental, Inc. is a Seattle-based environmental services firm offering environmental consulting and field services, environmental and industrial project services, and environmental, health and safety training. Since 2003, we have provided cost effective compliance solutions for regulated facilities and contaminated sites. Our staff have experience managing hazardous waste sites and generator programs, conducting environmental compliance audits and facility inspections, managing complex stormwater compliance programs, and providing environmental services for construction and heavy industrial clients. 

We are a licensed engineering corporation as well as a licensed general contractor and hazardous waste transporter. This unique combination of staff with consulting and engineering skillsets combined with extensive hazardous materials field services and contracting experience enables us with unique hybrid (consulting + contracting) capabilities.

Our clients include the Federal Government, state agencies, municipal governments, port districts, colleges and universities, industrial facilities, law firms and contractors. DH Environmental, Inc. is classified as an Emerging Small Business under the U.S. Small Business Administration standards and is a King County, WA certified SCS firm (Small Contractor and Supplier).


  • WA State Engineering Corporation: 3455

  • WA State Contractors License: DHENVEI871NB

  • USDOT #: 2506936

  • RCRA ID # (Transporter): WAH000047217

  • King County, WA SCS Certification # 836

  • DUNS#: 827834743

  • Federal NAICS: 541620 Environmental Consulting Services, 562910 Remediation Services, 562112 Hazardous Waste Collection

Our Services


Environmental Consulting and Field Services

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Project Services Group - 

Hazardous Waste Disposal


Environmental, Health, and Safety Training


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