
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

Engineering Excellence + Inspiring Innovation
Service detail: Castings
Your Partner for Efficient and Effective Design
Project: Belmont University Massey Center

Advancing Public Safety and Efficiency within the Built Environment
Service detail: Architectural and Engineering Design

Building America from the ground up since 1993
Project: I-405 Improvement Project

Accelerating the Speed of Knowledge to Support National Security
Service detail: Strategy, Advisory, & Consulting
Aviation architecture, engineering, and prefabricated air traffic control cab fabrication.
Project: Orlando-Melbourne International Airport Improvements
Multidisciplinary Engineering, Special Inspections & Expediting Services
Service detail: Structural Engineering
Engineering with integrity & purpose.
Project: The Virginia Vanguard

Engineering The Future
Service detail: MEP & Fire Protection Engineering
Engineering and Environmental Consultants
Project: ATOKA Bioremediation Project
AVEC, Inc. provides expert technical assistance in the analysis and control of noise and vibration in mechanical systems. Capabilities span phased array design and software, tire-pavement noise measurement (OBSI), road surface sound absorption (ROSSA), propeller noise prediction, structural analysis using FEM and BEM, unsteady aerodynamics, and machinery fault diagnostics. Past clients include NASA Langley Research Center, the Japan Aerospace Exploration Agency, Boeing, Siemens, and the US Air Force.
Service detail: Noise and Vibration Engineering
Innovative and sustainable engineering solutions
Project: Michoacan Ice Cream Shop

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

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

Engineering You Can Trust, Results You Can Build on
Project: Kirtley Powerline

Developing Our Community
Project: Marietta First Baptist Church

Communicating With Technical Accuracy About Your Project So You Can Proceed With Confidence
Project: Broken Arrow Senior Center
Construction management and inspection services for infrastructure projects
Project: Caltrans, District 3 On-Call Construction Inspection Services; Highway 70 Widening

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)

Multidisciplined EPCM
Project: Bringing Ground-Breaking Water-from-Air Technology to Market

Partnering to Build & Protect What Matters Most
Project: ADOT I-10 Tucson Reconstruction

Comprehensive engineering services grounded in strict adherence to international and industry-specific standards.
Service detail: Engineering Design & Analysis
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