
Adaptive Management and Engineering, LLC
Baton Rouge, LAGeotechnical Solutions for a Sustainable Future
Project: Caminada Headland Back Barrier Marsh Creation (BA-171) Project
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Geotechnical Solutions for a Sustainable Future
Project: Caminada Headland Back Barrier Marsh Creation (BA-171) Project

Innovative Solutions to Complex Problems
Project: Switchback Autonomous Ground Platform

Excel. Together.
Project: Bloomingdale Road Reconstruction

Geotechnical, Materials, and Pavement Engineering Consultants
Project: Natchez National Cemetery

Geotechnical drilling and engineering, led by engineers who know what engineers need.
Service detail: Geotechnical Drilling and Sampling

Carlin-Simpson & Associates, LLC is a small geotechnical and environmental engineering consulting firm established in 1973 and headquartered in Sayreville, New Jersey. With a technical staff of ten, the firm completes approximately 200 projects per year for both new and repeat clients, ranging from small additions to large development projects. Services are provided throughout New Jersey, New York, Connecticut, and Eastern Pennsylvania, with additional project experience in Delaware, Maryland, Virginia, Massachusetts, and Eastern Ohio.
Service detail: Geotechnical Investigations
Reliable. Innovative.
Project: Dulles Corridor Silver Line Metrorail Project Phase II

Laying the Groundwork for Tomorrow
Project: B&P (Frederick Douglass) Tunnel

Geotechnical, Environmental, Surveying & Materials Testing Services
Project: QuikTrip Multiple Locations

Your Go-To Engineering Consulting Partner
Project: SK Innovation EV Battery Site

Geoprofessional and Materials Testing Services
Project: Route PR-66 Phase I and II

Growing Together To Enhance Our Built Environment
Project: Ewing Town Center

Geotechnical Solutions, Inc. (GSI) is a full-service geotechnical engineering and testing consulting firm based in Irvine, California, incorporated in 1993. GSI serves residential, commercial, industrial, wireless, institutional, religious, and public works clients throughout Southern California, with extended service areas in Central California, Nevada, and Southwestern Arizona. GSI operates a certified in-house laboratory and applies state-of-the-art software for seismic evaluation, slope stability, foundation analysis, pile analysis, and liquefaction studies. GSI has completed over 8,000 projects since 1992, including more than 6,000 wireless telecommunications sites, and serves as the sole geotechnical consultant for the Diocese of Orange.
Service detail: Geotechnical Engineering

Dedicated to Providing Smart Geotechnical Solutions for Our Communities and Our Planet
Project: Scriber Lake Park Boardwalk
Consulting Engineers & Geologists
Project: Soledad Mountain Road Landslide
Kokua Geotech LLC is a Honolulu-based geotechnical engineering practice established in 2016. It provides comprehensive geotechnical engineering services across all major Hawaiian Islands, including site explorations, laboratory soil testing, engineering analysis, and construction observation. The practice combines deep regional experience in Hawaii and the Pacific with the responsiveness and agility of an independent small business.
Service detail: Geotechnical Explorations
Marianas Geotech Services, LLC is a consulting civil engineering practice specializing in geotechnical engineering, subsurface exploration, and construction materials testing in the CNMI and Guam. It is a licensed well driller in both territories, offering a broad spectrum of geotechnical and environmental services to support design and construction projects throughout the CNMI, Guam, the Republic of Palau, and the broader Micronesian region.
Service detail: Civil and Geotechnical Engineering
Geotechnical and Environmental Engineering Solutions
Project: Exploratory Drilling for Coal Reserves

Red Rock Consulting is an Oklahoma geotechnical engineering firm founded in 2009. It provides geotechnical engineering services for transportation, federal, education, healthcare, municipal, commercial, oil and gas, and residential projects, and is licensed in Oklahoma, Texas, Kansas, Colorado, and Missouri.
Service detail: Geotechnical Engineering

Assessing Ground Conditions for Your Construction Project
Project: Thompson Island Suspension Bridge
Moving your project forward through engineering and testing
Service detail: Geotechnical Engineering
Building Strong Foundations Across the Southeast
Project: Tyndall AFB Zone 8 Emergency Operations Center

TSIT Engineering & Consulting, LLC is a geotechnical engineering and construction materials testing firm based in Euless, Texas, serving North and Central Texas since 1993. Project Managers average 25 years of experience and the team averages 10 years of field experience. Clients include TxDOT, NTTA, and municipal agencies across a portfolio spanning highways, tollways, airports, stadiums, commercial buildings, water infrastructure, universities, and public safety facilities.
Project: Cowboys Stadium
Global leader in high-performance airfield and heavy load logistics pavements
Project: Little Rock AFB Primary Runway Reconstruction