Business Directory

The directory is provided as a resource to facilitate communication and as a central database for business contact information for members of the PNW NASTT. As such, only businesses with members in good standing with NASTT are included in the directory. Any corrections, updates, or additions can be emailed to the PNW NASTT Chair.

Construction Law Firms

  • No information available.


Engineering Firms (Civil, Consulting, Geotechnical)

Manufacturers and Suppliers

Materials/Rock Testing

Public Works

  • No information available.

Become a NASTT Member

When you join the North American Society for Trenchless Technology (NASTT), you’ll belong to the largest community of trenchless professionals in the USA and Canada committed to promoting better and more responsible ways to manage underground infrastructure and advance trenchless technology for the benefit of the public and the natural environment.

Join as a college student or individual professional or get group savings as an organization with a corporate or government/education/utility membership. Chapter membership is included with NASTT membership.