Find the right engineering partner.

Creating infrastructure for 70 years.

From concept to completion, CAS Group is your trusted partner for successful project delivery.

The Woodlands, TX+1

The Region's Premier Civil Engineering and Land Surveying Firm

Brookings, SD

Building a better tomorrow through sensible engineering solutions

Doral, FL+3

Built for Excellence

Houston, TX

Hydrology and Hydraulics and Bridge Opening Analysis and Design.

Helena, MT

Building Tomorrow's Infrastructure, Today

Chicago, IL

Our vision is to connect the world through infrastructure

New York, NY

Resident Engineering and Inspection and Construction Management.

New Hyde Park, NY

Elevating infrastructure, together.

Springfield, IL+2

Engineers | Planners | Surveyors

Albany, NY

Meeting All Your Railroad Engineering Needs

Brentwood, TN

Delivering Intelligent Engineering

DLCE Is Driving Change for Our Communities

Long Beach, CA+2

One Vision. Shared Future.

Chicago, IL

Engineering a Better Tomorrow

Chicago, IL

We Know Railroad

St. Louis, MO

End-to-End Engineering Solutions for Public Infrastructure and the Built Environment

Valhalla, NY+1

Delivering Solutions

Engineering resilience for a safer future

Fountain Valley, CA+3

Imagine, create, achieve a sustainable future.

Where Commitment and Action Meet

Jacksonville, FL