Alliant Engineering, Inc.
Civil Engineering and Transportation Planning & Design.
Loading directory…
Find the right engineering partner.
Explore capabilities, project experience, and office locations to build your shortlist.
Explore capabilities, project experience, and office locations to build your shortlist.
Civil Engineering and Transportation Planning & Design.
We Work To Build The Future
A Legacy Built on Collaboration
Tigard, OR
Turning Visions into Reality
Seattle, WA
Responsive People. Creative Solutions.
Baltimore, MD
Professional Civil Engineering
Ann Arbor, MI
Civil, Coastal, and Environmental Engineering and Consulting Practice
Robbinsville, NJ+2
Delivering Solutions to Improve the Quality of Life
Ankeny, IA+4
Exceeding Expectations Every Time
Melbourne, FL+2
Are You Curious?
Where complex challenges become extraordinary places.
Saratoga Springs, NY
Designing Beautiful Environments in Des Moines, Iowa since 1969
Des Moines, IA
Bringing Projects to Life with Quality and Care
Gainesville, FL
Building a Better Future for New Orleans
New Orleans, LA
Multi-Discipline Engineers and Consultants
Allentown, PA+11
Full-Service Design, Engineering, Geotechnical Firm
Bartow, FL
Building on a Foundation of Excellence
New Britain, PA+4
Innovative Civil Engineering Firm
Charleston, WV+7
Purposed For People.
Richardson, TX
Improving communities with innovative design, effective and efficient engineering, and professional service.
Athens, GA+4
Delivering Collaborative Solutions and Exceptional Service That Builds Lasting Relationships
Duluth, GA+3
Transportation Infrastructure and Civil Engineering Practice
Oakland, CA+1
At the Forefront of Design for Our Changing World
Florida Infrastructure Beyond Engineering
Jacksonville, FL+3