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

We engineer & design systems for the reliability of the power grid.

Project: Solar & Wind Interconnects

Innovate, Empower, and Collaborate

Service detail: Transportation Engineering

Full Aircraft Certification and Engineering Services

Service detail: FAA Certification and Foreign Validation

Full-service structural engineering

Project: KO'ULA

Delivering solutions for a carbon-neutral real estate industry.

Service detail: Commissioning

Bloom Companies, LLC is an engineering, architecture, and construction management practice founded in 1998 in Milwaukee, Wisconsin. Established by Mathew Tharaniyil, the organization initially focused on bridge and structural engineering, eventually expanding to cover transportation, architecture, electrical and controls, and design-build delivery. It has grown through key acquisitions, including Hay Dobbs in 2024 and Jendusa Design Build in 2025, and serves academic, municipal, transportation, industrial, and utility clients across multiple US offices and international locations.

Project: Historic West Kilbourn Avenue Bascule Bridge Rehabilitation

One-stop engineering and project management services throughout the project life cycle.

Project: Construction Management of a New Wheat Factory

Creating Space Underground

Project: Champlain Hudson Power Express Trenchless Crossings

Buro Happold is a global practice of engineers, designers, and advisors committed to delivering elegant, sustainable solutions that positively impact communities and the environment. It provides integrated consulting engineering and advisory services across buildings, cities, and infrastructure, with US offices in New York, Los Angeles, Washington DC, Chicago, and Boston. Projects span aviation, urban resilience, electrification, and data infrastructure, with work including Pittsburgh International Airport and other major US and international projects.

Service detail: Integrated Engineering Consulting

Provide the Highest Level of Service to Our Clients While Delivering Value

Project: 540 West Madison

The Leader In Energy Infrastructure

Project: 350MW Data Center Power Generation & Substation Facility

Acoustic Design + Technology Consulting

Service detail: Acoustic Design

Full-Service Consulting Engineers

Project: Presidential Park

Civiltech Engineering is a transportation and civil engineering firm headquartered in Itasca, Illinois, providing innovative planning, design, and construction engineering solutions for transportation networks in the Chicagoland area and beyond since 1988. With offices in Itasca, Chicago, and Milwaukee, Civiltech delivers transportation design, traffic engineering, structural design, water resources, environmental studies, urban design, and program management services to public and private sector clients.

Service detail: Transportation Design

Engineering Quality of Life

Project: Illinois Tollway I-294 Bridge Reconstruction

Building Tomorrow's Infrastructure, Today

Project: The 606 - Chicago, IL

Preserving Infrastructure, One Solution at a Time.

Service detail: Materials & Corrosion

One Vision. Shared Future.

Project: Wells Street Bridge over the Chicago River

One Vision. Shared Future.

Project: Central Tri-State Tollway Mile Long Bridge (I-294) Reconstruction

Client-Focused Parking Solutions

Project: Ft. Duquesne and Sixth Parking Garage Facade and Renovation

Exceptional Engineering. Innovative Construction Services. Dedicated to Our People.

Project: Jefferson National Expansion Memorial - Gateway Arch Grounds Renovations

Bridging science and humanity

Project: Terminal Warehouse

Engineering a Better Tomorrow

Project: Metra Consolidated Control Facility