Find engineering consulting firms by capability and location.

2IM Group, LLC is a Chicago-based civil, environmental, and transportation engineering practice. Now part of MacKay, it continues to deliver technical solutions across highways, roads, streets, aviation, rail, transit, utilities, and stormwater management systems while offering expanded resources and broader geographic reach.

Project: O'Hare Terminal 3, Concourse L Expansion

Celebrating 70 Years of Engineering and Design

Project: Route 1 Improvements

Leaders in professional engineering for over 40 years

Project: Passamaquoddy Water Treatment Plant

Engineering for an Integrated World

Project: Denver Central Business District - Traffic Signal Retiming

Specialized electrical engineering for aviation, transportation, and facilities projects

Service detail: Electrical Systems Design

Improving Life. By Design.

Project: Rhode Island Corridor Modernization

AIG Technical Services, LLC is a Houston-based engineering consulting practice specializing in transportation infrastructure. It offers a multi-disciplinary blend of planning, engineering, and program management services for various transportation projects, ranging from local improvements to large-scale corridor developments across Texas. The practice focuses on delivering cost-effective and safe solutions by collaborating closely with public agency clients to address complex engineering and planning challenges.

Project: SH 146 Ferry Road to I-10 Schematic and Environmental Study

Engineering with integrity & purpose.

Project: The Virginia Vanguard

Innovative geotechnical, forensic structural, and materials testing services throughout Florida.

Service detail: Geotechnical Engineering

Value engineering to build a safer tomorrow.

Service detail: Geotechnical and Geological Studies

From concept to close-out.

Project: 1400 Chestnut Street Apartments

Engineering Excellence

Project: Casper's West Belt Loop Road

Large Firm Expertise Small Firm Values

Service detail: Transportation Engineering

Many Disciplines One Team

Project: Haven Hollow Park Improvements

Accompong Engineering Group, LLC offers civil and transportation engineering, planning, and program and project management services. It works with public and private sector clients, including departments of transportation, municipalities, state and federal agencies, contractors, and consultants.

Project: Frederick Douglas Memorial Bridge

A solution-oriented international organization experienced in engineering and IT services.

Project: Grand Ave. Ramp Reconstruction

Acoustical consulting services for transportation, aviation, and community noise

Project: Los Angeles-Pasadena Light Rail Transit Corridor EIR

You See Us Every Day

Project: Braddocks Mill Dam

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

Civil Engineering and Surveying for the Kansas City Region

Project: Cambridge Street and State Line Road Intersection Realignment

Leading the pavement consulting industry

Service detail: Nondestructive Deflection Testing

American Geotechnical & Environmental Services (A.G.E.S.), Inc. is a specialty engineering practice that provides comprehensive geotechnical design and environmental services. Headquartered in Canonsburg, Pennsylvania, with branch offices in King of Prussia, Pennsylvania, McLean, Virginia, and New Jersey, it has grown to become one of the largest specialty geotechnical consultancies in the northeastern United States. The practice focuses on delivering geotechnical engineering solutions for public infrastructure projects, including highways, bridges, transit, rail, aviation, and water resources.

Service detail: Geotechnical Engineering

Professional and relationship-based civil engineering and surveying.

Service detail: Transportation 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