
A&A Consultants Inc
McKees Rocks, PASpecializing in geotechnical, structural, and civil engineering excellence
Project: Big Beaver Bridge
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Specializing in geotechnical, structural, and civil engineering excellence
Project: Big Beaver Bridge

AAA Structural Engineering is a licensed structural engineering firm based in Wailuku, Maui, providing structural evaluations, forensic engineering investigations, seawall assessments, and expert consulting services for residential and commercial structures throughout Hawaii. Led by Kiumars Siah, Ph.D., P.E., a licensed structural engineer with more than 35 years of professional experience and over 100 completed forensic investigations, AAA Structural Engineering serves homeowners, attorneys, insurance carriers, real estate professionals, and contractors across the Hawaiian Islands.
Service detail: Structural Evaluations and Inspections

Responsive, sustainable, and innovative structural solutions.
Project: USU Noelle E. Cockett Life Sciences Building

Geotechnical Solutions for a Sustainable Future
Project: Caminada Headland Back Barrier Marsh Creation (BA-171) Project

Building Our World on Solid Foundations
Project: Honolulu Rapid Transit Project

Developing Our Community
Project: Marietta First Baptist Church

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)

Your Vision, Our Commitment - Built to Last in Whatcom, Skagit, and Beyond
Project: Bellingham Fountain District Mixed-Use Building

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
From the Waterfront to Operational Edge
Service detail: Direct Operations Support
Architectural Engineering Services
Project: 209 Mt Pleasant

Specialty Structural Engineering, Nondestructive Testing & Diagnostics
Project: Tumacacori Mission
Your Trusted Partner in Facility Asset Management
Service detail: Facility Asset Management & Consulting

Above & Beyond Since 1981
Service detail: Fire Protection Engineering and Design

Fast, reliable engineering inspection reports for structural assessments, foundations, manufactured homes, and repair sign-offs.
Service detail: Engineering Letters for Inspection Issues
Geotechnical and Environmental Engineering
Project: Landslide Repair - Fairfax

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

Experts in the Field
Project: Sam Houston Ship Channel Bridge Program

Analyze, Protect, Preserve
Project: Jefferson Street Bridge

El Paso, Texas Geotech Experts
Project: Tornillo-Guadalupe Port of Entry - Phase I Roadway Construction

An Independent, Locally Owned Engineering Practice.
Project: F-35 Hangar
Engineering Solutions That Speak Precision & Quality
Service detail: Structural Design & Analysis

Design Everything With Passion
Service detail: Residential Design Services