
Design Nine, Inc.
We Know Railroad
St. Louis, MO
Explore capabilities, project experience, and office locations to build your shortlist.

We Know Railroad
St. Louis, MO

Engineered for Impact.
Geotechnical, Structural, Forensic, and Special Inspection Engineering
Queens, NY+1
Changing the Way the World Produces Power.
Eden Prairie, MN

Higher Standards. Better Results.
Cincinnati, OH+3

Passion, Expertise, Quality & Results
Anchorage, AK+2
Civil and structural engineering consulting dedicated to enhancing lives through better engineered buildings.
Burbank, CA+2

Structural Engineering Design and Reinforced concrete, steel, masonry, timber, and aluminum structures.
Cincinnati, OH

Structurally Engineered to Stand Alone

Unrivaled service. Unrivaled skill. Unrivaled results.
Bogart, GA

Engineering the Future
Washington, DC+1

Structural Engineering That Works in the Real World
Newton, MA

Build with Confidence, Build with City Structural Group!
Charleston, WV

Engineering and project management for power and energy projects
Worldwide Design of Secure, Mission-Driven Facilities

Smart solutions in sustainable water infrastructure project delivery
San Diego, CA

We design with people in mind.
Northridge, CA

Civil Engineers. Surveyors. Planning and Design. Proudly Serving Big Sky Country.
Great Falls, MT+3

Bringing life to your project
Augusta, GA

Right from the start.
Houston, TX

Civil Engineering and Site Evaluation and Feasibility Studies.
Fairfield, NJ

Delivering Quality Designs
Seattle, WA

Delivering 60 years of Design Excellence
San Francisco, CA+1

Experience matters.
Santa Ana, CA