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

Engineering Together

Project: Wallops Mission Operations Command Center

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

Project: Solar & Wind Interconnects

Full-service structural engineering

Project: KO'ULA

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

Project: 540 West Madison

Future-focused, cost-effective engineering solutions for building systems.

Project: The Solaire

Engineering a Better Tomorrow

Project: Metra Consolidated Control Facility

Pioneering Civil Engineering Excellence Since 1998

Project: Manchester Road

Founded in practicality. Driven by sustainability.

Project: Loyola University Cuneo Hall

Generating comprehensive and innovative solutions for the energy sector

Service detail: Power System Studies

Innovation plus engineering

Project: Vue53 High Risers Site Development

Horner & Shifrin is a multidisciplinary professional services engineering firm founded in St. Louis in 1933, offering building systems MEP/FP engineering, water and wastewater, transportation, structural, environmental, geospatial, surveying, and construction services. With nine offices across Missouri, Illinois, and Arkansas and repeat client assignments from 80% of its client base, H&S serves education, government, healthcare, emergency services, utilities, and private markets throughout the Midwest.

Service detail: Building Services

Power Delivery, Construction Management, and Industrial & Corporate Consulting Solutions

Project: 34kV Distribution Line Project - Arnold, MO

Build on what we know.

Project: Sphere at the Venetian Resort

The Difference Is ME

Service detail: Mechanical, Electrical, Plumbing Design

Excellence by Design, Sustainability by Commitment

Project: The Momentary

Engineer Excellence For Structural Brilliance Precision Quality

Project: Lake Point Tower Planter Leak Investigation

People-forward engineering design and consulting services

Project: U.S. Navy Great Lakes Bachelor Enlisted Quarters

Experience. Reliability. Integrity.

Project: Illinois Tollway Central Tri-State Reconstruction

Geotechnical & Environmental Consultants

Project: Lower Dungeness River Floodplain Restoration and Levee Realignment

Acoustic, Audiovisual & Technology Design Consultants

Project: U.S. Embassy in London

Acoustical Consultant · Vibration Consultant · Noise Control Engineer

Project: Immanuel Baptist Church

Engineering the Amazing

Project: Mount Sinai Behavioral Health Center

Impact Through Engineering

Project: The Keller Center, The University of Chicago