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.

Iowa Civil Engineering Firm
No Excuses: Integrated Design for a Sustainable Future
Irvine, CA

Creating Your Vision
Cincinnati, OH

Civil Engineering and Stormwater Management.
Wilmington, NC

Land Surveying and Land Planning.
Suwanee, GA+2

Built on Legacy. Empowered by Success.
Brookhaven, NY+1

Large-Firm Resources. Personal Attention.
At the Forefront of Design for Our Changing World

Vermont Civil Engineering, Landscape Architecture, Land Surveying, and Environmental Services
Williston, VT

Guiding you down the road to success!
Mount Laurel, NJ
Solve better. Go further.

practical approach. creative results.
Melville, NY

Problem solved.
St. Louis, MO+3

Civil Engineering and Septic System Design.
Kingston, MA+1

Project Management and Site Design Services
Poughkeepsie, NY+3

Civil Engineers | Land Surveyors | Planners | Landscape Architects
South Windsor, CT
A History of Engineering Success
Fort Lauderdale, FL+14

Architecture - Engineering - Planning
Abingdon, MD+9

Delivering Civil Engineering Excellence
Bluffton, SC

A relationship-oriented full-service engineering firm
Marianna, FL+1

Creating Environments People Enjoy
San Luis Obispo, CA+6
Engineering services that are different by design
Wichita, KS+2
ENGINEERED for what's next.
Easton, MD