Trihydro Corporation

Company Description

Trihydro is a national environmental and engineering consulting firm that has provided technical services to the petroleum industry for the past 37 years and has been named a Top 200 Environmental Firm by Engineering News-Record for the last 16 years. With 500 employees and 21 offices, including offices in Helena and Billings, Trihydro is large enough to leverage broad bench strength, yet small enough to be responsive to clients’ evolving needs.

Trihydro has provided services in Montana since 1997, completing more than 500 projects and building collaborative relationships with state and federal regulatory agencies along the way. Our decades of experience working with oil and gas industry clients, together with our industry-recognized safety culture, results in a commitment to working safely and efficiently in an environment that leaves little room for error. Our team’s knowledge and experience in oil and gas production, transport, and refining allow us to tackle projects of all sizes, and our ability to work effectively with regulators facilitates project efficiencies and cost savings.

As a full-service consulting firm, Trihydro’s project managers, engineers, geologists, hydrogeologists, chemists, data experts, statisticians, risk assessors, and remediation specialists have the technical competencies to help upstream, midstream, and downstream companies balance regulatory obligations with strategic objectives.

Petroleum Markets Served:

  • Exploration & Production
  • Petrochemical
  • Refineries
  • Transportation & Terminals



Architects / Engineers

  • Engineering Services
  • Surveying


  • Construction Management / Inspection Services

Environmental Services

  • GIS / CAD / Data Management and Visualization


  • Land

Professional Services

  • Environmental Services
  • Government
  • Oil & Gas Company
  • Refining
  • Safety and Risk Management
  • Waste Management

Reclamation Products

  • Environmental Remediation
  • Erosion & Sediment Control
  • Natural Resources
  • Site Specific Solutions for Vegetation
  • Soil Testing
  • Water Treatment


  • Regulatory Compliance Permitting
  • Regulatory Compliance Software