
7NT Enterprises, LLC
Miamisburg, OHProper Execution with Precision
Project: Gordie Howe International Bridge
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Proper Execution with Precision
Project: Gordie Howe International Bridge

Specializing in geotechnical, structural, and civil engineering excellence
Project: Big Beaver Bridge

Civil & Structural Engineering, Design Services, General Contracting, and Construction Management
Project: Washington Avenue Streetscape Project

Geotechnical engineering, material testing, special inspections, and drilling services in Arizona
Service detail: Geotechnical Engineering

Engineering, Surveying, and Inspections
Project: 95REVIVE Pottstown Expressway Reconstruction
Enhancing communities and the built environment.
Project: SFO Harvey Milk Terminal Boarding Area B
Practical Solutions. Designed to Last.
Service detail: Civil Engineering
Engineering with integrity & purpose.
Project: The Virginia Vanguard
AP Engineering & Consulting, Inc. (APEC) is a full-service geotechnical engineering, environmental consulting, compliance management, and construction materials testing firm based in Greenfield, Indiana. APEC's team of licensed professional engineers, geologists, and scientists delivers quality, efficient, and value-added solutions for commercial, residential, and municipal projects. Its INDOT-prequalified and AASHTO-certified in-house laboratory supports construction materials testing in accordance with ASTM and AASHTO standards.
Service detail: Geotechnical Engineering

APS Lays the Foundation for a Better World
Service detail: Geotechnical Engineering

Innovative geotechnical, forensic structural, and materials testing services throughout Florida.
Service detail: Geotechnical Engineering

Precise. Responsive. Solutions.
Project: Annapolis Landfill Solar

Geotechnical, Civil, and Structural Engineering Across California and the Western States
Project: LA Metro Gold Line - MSE Wall

Providing comprehensive engineering, construction, and construction management services.
Service detail: Federal Services

Building Tomorrow's Legacy, Today
Service detail: Materials Testing Laboratory

Advanced Infrastructure Design, Inc. (AID) is a consulting engineering practice established in 1998. Headquartered in Hamilton, New Jersey, with an office in Philadelphia, Pennsylvania, it is staffed by licensed Professional Engineers, scientists, researchers, and technicians. The practice specializes in transportation infrastructure preservation, deploying advanced non-destructive testing (NDT) technologies to evaluate and design solutions for roads, bridges, tunnels, airports, substructures, foundations, and parking structures. It is led by President Mojgan Mohtashami, PhD, MBA.
Service detail: Pavement Engineering

Communicating With Technical Accuracy About Your Project So You Can Proceed With Confidence
Project: Broken Arrow Senior Center

All-Terra Engineering, Inc. is a full-service construction materials testing (CMT) and geotechnical engineering laboratory based in Houston, Texas, founded in 2006 by President Haddis Tewolde, P.E. Backed by a senior team with more than 50 years of combined experience, All-Terra operates an A2LA-accredited laboratory and serves public agencies, developers, contractors, and universities across the Greater Houston area. Core services include construction materials testing, geotechnical engineering, and forensic evaluation of concrete.
Service detail: Construction Materials Testing (CMT)
Accredited Laboratory Testing.
Service detail: Geotechnical Engineering
Diverse Projects. Solutions That Last.
Project: Bozeman Public Safety Center

Partnering to Build & Protect What Matters Most
Project: ADOT I-10 Tucson Reconstruction
Founded in 1979, Alvi Associates provides integrated multidisciplinary engineering services across structural, water resources, transportation, and geotechnical engineering for complex infrastructure projects. Based in Towson, Maryland, the practice has earned numerous national and state engineering awards and is recognized for first-of-its-kind solutions in the Mid-Atlantic region and beyond. Nearly all clients are repeat clients, reflecting decades-long relationships with government agencies, engineering consultants, law practices, and contractors.
Project: Forensic Investigation for Edenville Dam Failure

Geotechnical engineering, structural design, and construction materials testing in the Texas Panhandle
Project: City of Amarillo Osage WTP High Service and Transfer Pump Station
Critical investigations, testing, analysis, and design for a more certain world
Project: Minnesota Zoo Treetop Trail