Public engineering firm directory
Search engineering firm profiles built for buyers who need a shortlist, not a sales pitch.
1,558 results
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Sustainable Transportation Engineering Planning & Design
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.
Your Trusted Engineering Partner
Measuring & Modeling Quality
Your Partner in Civil Engineering & Community Planning
Air. Land. Water.
Honest, Authentic Solutions
On time, every time.
Specialized civil and structural engineering services for bridges and infrastructure projects.
Civil, Water Resources, and Environmental Engineering Services
Full-Service Architecture & Engineering Design
Engineering Excellence Delivering High-Quality Engineering, Surveying & Consulting Services to the Rocky Mountain Region
Proper Execution with Precision
Your Engineering Solutions... Start to Finish.
Cathodic Protection / Corrosion Specialist
Celebrating 70 Years of Engineering and Design
Leaders in professional engineering for over 40 years
Leaders in Design, Construction, and Environmental Services
Driving Innovation and Digitization in Engineering
Civil & Structural Engineering, Design Services, General Contracting, and Construction Management
Geotechnical engineering, material testing, special inspections, and drilling services in Arizona
Civil, Coastal, and Environmental Engineering and Consulting Practice
We Make Building Projects a Better Value
AECOM is a trusted global infrastructure firm delivering professional services spanning cities, transportation, buildings, water, new energy, and the environment. Founded in 1990, with predecessor firms dating back over 120 years, AECOM is ranked #1 in general building, transportation, and water by Engineering News-Record (2025), listed at #259 on the Fortune 500, and generated $16.1 billion of revenue in fiscal year 2024. AECOM delivers planning, design, engineering, consulting, and program and construction management services throughout the full project lifecycle.