Inquip specializes in the following services:

Main Office

1340 Old Chain Bridge Road, Suite 400
McLean, Virginia 22101


  • Wanapum Dam

    Vantage, WA

  • Mangla Dam, Pakistan

    Slurry Trench, 1967-68

  • Four Seasons Hotel Baltimore

    JV Soletanche-Inquip

  • (L) Manasgquan Dam, Soil Bentonite Cutoff, Manasquan, NJ
       (R) Garden Highway, Cement Bentonite Cutoff, Sacramento, CA

Inquip: The Slurry Trenching
Pioneers and Experts

Inquip is one of the oldest geotechnical companies in the nation with a senior staff of geotechnical engineers and construction superintendents who helped pioneer the slurry trenching method of construction from the 1950s to present.

Today, Inquip provides geotechnical specialty services as a prime contractor and subcontractor to clients in the United States, Canada, South America, and other parts of the world. We also provide technical assistance and expertise. Our head office is in Virginia with regional offices in California and Florida.

Inquip Stats

Square feet of slurry walls installed:

66000000 sq.ft.

Counter is updated regulary.

Inquip News

Inquip was recently awarded an important subcontract for the installation of a deep Cement Bentonite Cutoff Wall in Newfoundland, Canada.

Stay tuned for our new Main Office location around mid April.