Alliant Engineering, Inc.
Civil Engineering and Transportation Planning & Design.
Explore capabilities, project experience, and office locations to build your shortlist.
Civil Engineering and Transportation Planning & Design.

Land Development and Land Planning.
Columbus, OH+1

Merging Innovation and Excellence
Baltimore, MD+2

Engineering the Extra Mile
Marietta, GA+2
Traffic Engineering and Traffic Signal Design.

Professional Engineering Consulting and Construction Inspection Services
Princeton, NJ
Excellence. Innovation. Service.
Cherry Hill, NJ+13

Small Firm Client Focus, Large Firm Capability
Pittsburgh, PA+2

Empowering Communities Through Engineering & Innovation
Austin, TX+13
Giving You Direction
San Antonio, TX
Transportation engineering services specializing in roadway design, traffic safety operations, and precise traffic data collection.
Miami, FL+1

Trusted advisors serving our clients nationwide
Brookfield, WI+5

Trusted Experts | Innovative Results
Manchester, NH+6

Architecture and Transportation.
Wahoo, NE

Southern California's Premier, Full Service, Civil Engineering Consulting Firm
Riverside, CA+1

Modern Engineering with Time-Tested Expertise
Richland, MS

Solving your toughest science and engineering challenges

Integrated Infrastructure Solutions
Breese, IL+4

Trusted. Timeless.

We Are the Community That Builds Communities
Rochester, NY+7

Best-In-Class Engineering Expertise
Pleasanton, CA

Engineering Solutions for a Better Life
Dallas, TX+4

Client-Driven Engineering
Irvine, CA

Civil Engineering and Concept Plan Preparation.
Tampa, FL