
4M Engineering
Specialized civil and structural engineering services for bridges and infrastructure projects.
Project: Shasta Viaduct
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Specialized civil and structural engineering services for bridges and infrastructure projects.
Project: Shasta Viaduct

Benefit from an innovative and diverse range of surveying and engineering experience.
Project: Admiration Foods Facility

Proper Execution with Precision
Project: Gordie Howe International Bridge

Multidisciplinary engineering and support services in the Baltimore-Washington area
Project: WMATA Bus System Renovations

Many Disciplines One Team
Project: Haven Hollow Park Improvements
A solution-oriented international organization experienced in engineering and IT services.
Project: Grand Ave. Ramp Reconstruction

Engineering design, construction support and construction inspection services for transportation infrastructure
Project: Route 440 Ramp Over Route 35 Bridge Deck Replacement

Advantus Engineers is a Pittsburgh-based engineering consulting practice founded in 2004, specializing in building commissioning, sustainability consulting, MEP assessments, construction quality assurance, and environmental compliance. It serves public, institutional, and commercial clients across the Pittsburgh region. Over more than two decades, the practice has supported LEED certifications, water quality programs, and on-call MEP engineering for clients including the Pittsburgh Water and Sewer Authority and the David L. Lawrence Convention Center.
Project: Western Butler County Authority Administration Building

Delivering public infrastructure efficiently, economically, and sustainably.
Service detail: Civil Engineering
Key to reliable engineering, business and software solutions
Service detail: Infrastructure and Engineering

Established in 2013 by Laurie Allen and Monique Allen, Allen Construction Management Services Northwest, LLC (ACMS Northwest) is an Oregon-based civil engineering and construction management practice. It provides professional services for public agencies and private-sector clients, with experience on major Pacific Northwest projects such as the City of Portland Secondary Treatment Expansion Program, Port of Portland PDXNEXT, and ODOT I-205 Abernethy Bridge.
Project: Secondary Treatment Expansion Program
Diverse Projects. Solutions That Last.
Project: Bozeman Public Safety Center
Client-focused, quality-driven, cutting-edge engineering solutions for bridges & structures
Project: Pinellas Bayway Structure C
Critical investigations, testing, analysis, and design for a more certain world
Project: Minnesota Zoo Treetop Trail

Complete Solutions for Deep Foundation Testing
Project: I-4 Ultimate

Preserving the Past...and Designing for the Future
Service detail: Bridge Engineering

Armstrong Glen, P.C. is a civil engineering consulting practice that provides professional engineering services throughout North and South Carolina. Founded in 1997, it focuses on quality of service, reliability, and accuracy, remaining committed to listening to client needs. The practice primarily serves local municipalities and counties on multi-year, reoccurring contracts ranging from capital stormwater projects to on-call structural services.
Project: Celia Avenue Culvert Project

Atlantic Testing Laboratories, Limited (ATL) is a full-service engineering support firm with eleven offices throughout New York State, providing geotechnical engineering, materials testing, environmental services, and subsurface investigation to infrastructure, industrial, governmental, and private clients across the Northeast, Midwest, and Mid-Atlantic regions. ATL maintains a database of more than 6,000 completed geotechnical and subsurface investigation projects in the Northeastern United States, in-house geotechnical laboratories, a diverse fleet of drill rigs, and an in-house fabrication shop for custom field tools. Key capabilities include subsurface investigations (soil and rock sampling, SPT, CPT, groundwater monitor well construction), construction material testing (concrete, steel, asphalt, masonry), geotechnical engineering (foundation design, pavement design, slope stability, dynamic pile testing), environmental services (Phase 1 and 2 ESA, asbestos and lead surveys, mold assessment, SWPPP inspections, vapor intrusion assessments), and nondestructive testing.
Project: Tappan Zee Bridge

Aucoin & Associates, Inc. (A&A) is a civil, environmental, and transportation engineering and land surveying firm founded in Eunice, Louisiana in March 1951 by Lindsey J. Aucoin. Serving the Central Gulf Coast from offices in Eunice and Lake Charles, A&A provides professional engineering, planning, and surveying services across Louisiana, Texas, and Mississippi. Licensed engineers and surveyors hold credentials in Louisiana, Texas, Mississippi, and Arkansas. The practice serves municipal, state, and federal agencies, parish governments, and private clients including major oil and gas pipeline operators, with project work spanning coastal restoration, transportation infrastructure, municipal utilities, land development, and solid waste engineering.
Service detail: Civil Engineering

Building a Better Texas
Project: US 77 Geotechnical Investigation
More Options. Fewer Surprises. Better Outcomes.
Service detail: Highway Design

Improving Communities Together
Project: PCB Investigation, Remediation, and Visioning for City Pier

We build our success by building yours.
Project: Elgin O'Hare Western Access

Engineering and Construction Management Services
Project: Raleigh-Durham Airport Renovation and Expansion Program