Joseph B. Callaghan, Inc.
Your Structure. Our Solution.
Philadelphia, PA+1
Explore capabilities, project experience, and office locations to build your shortlist.
Your Structure. Our Solution.
Philadelphia, PA+1

Advanced Geotechnical, Subsidence, and Forensic Engineering

Structural Engineering and Forensic Engineering.
Phoenix, AZ

Large Firm Experience, Small Firm Service
Spokane, WA+1

Giving your building new life
Milwaukee, WI

Structural Engineering and Component Design.
Baltimore, MD

We know the science behind your concrete.
Mendota Heights, MN

Geotechnical Engineering and Slope Stability Analysis.
Phoenix, AZ

Forensic Engineering and Construction Accident Investigation.
Savannah, GA

Tomorrow's Engineering Solutions Today
Spring Green, WI

We Know Buildings!
Oakland, ME
Professional. Practical. Proven.
Kennesaw, GA+18

Pavement Engineering and Comprehensive Non-Destructive Field Testing.
Hamilton, NJ+1

Committed to Quality Performance, Value & Continuous Improvement
Honolulu, HI+2

Structural Design and Analysis and Structural Construction Documents.
Bakersfield, CA+1
Transportation Structures and Bridge Design and Superstructure Replacement.
Towson, MD

Empowering Projects with Geostructural Expertise and Technology
New York City, NY

build better together.

Committed to providing excellent service and quality results
Kennewick, WA

Design, Build, and Sustain a Better World
Springville, NY+4
Building Your Vision, Respecting Your Budget

Comprehensive Civil and Environmental Engineering Consulting Services
West Jordan, UT