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

Energy by Design

Project: JMU Carrier Library Renovation, Restoration, and Expansion

Air. Land. Water.

Service detail: Air Quality and Environmental Compliance

4M Research, Inc., headquartered in Huntsville, AL since 2010, specializes in engineering, enterprise solutions, and operations and logistics services across the DoD and NASA sectors. 4M provides quality engineering support to a wide variety of customers as both a prime contractor and a subcontractor. Its team of technical professionals is dedicated to supporting the business and mission goals of clients, with a portfolio of high-end technical skills and substantial past performance.

Service detail: Engineering

Applying the Latest Technology

Service detail: Civil Engineering

Achieving military interoperability

Service detail: Foreign Military Sales Support

Expert Engineering Consultants

Service detail: Software Engineering

We Make Building Projects a Better Value

Project: Bay Pines VA Medical Center, Electronic Health Records Modernization

We build confidence

Project: Offset Success for Aviation Client

Delivering Engineering Solutions for Public Agencies since 1990

Project: PFAS Treatment Systems

Practical Solutions. Designed to Last.

Service detail: Civil Engineering

Precise. Responsive. Solutions.

Project: Annapolis Landfill Solar

ATCSI LLC delivers specialized services and technical solutions in air traffic control systems integration, shipboard systems, manned and unmanned air systems, and air traffic control procedures and policy development. It provides program management, task-based curriculum development, technical training, information analysis, digital data services, systems engineering, and strategic project planning. With a workforce of subject matter experts, the team supports complex aerospace, defense, and maritime programs.

Project: Naval Air Traffic Management Program Support

architects + engineers

Project: Big M Building Reimagining

Designing critical infrastructure that supports life.

Service detail: Mechanical Systems Design

Texas Civil Engineering Professionals

Project: Iowa Colony City Engineer

Experience. Passion. Excellence.

Project: BD Utility Chiller Plant (Project Granite)

Keeping Construction Projects on Track

Project: Reagan National Airport

Powering Progress, Empowering Communities

Service detail: Transmission Line Engineering

A leader in the field of air quality for over 40 years.

Project: National Park Service Air Quality Conditions & Trends Website

Committed to Excellence

Project: Predictive Logistics Implementation

Making the automation & packaging world a better place.

Service detail: Project Management

Trusted Service - Proven Results

Project: Department of State Passport Processing Operations

Leading the global energy transition as a full-service energy partner

Service detail: Energy Efficiency