
O'Donnell & Naccarato
Local Expertise. National Reach.
Philadelphia, PA+9
Explore capabilities, project experience, and office locations to build your shortlist.

Local Expertise. National Reach.
Philadelphia, PA+9
Structural engineering design for transportation and building structures.
Fresno, CA
When others say no, we say "Here's How"
New York, NY+4

Design Everything With Passion
Troy, NY
Partners in Reliability, Resilience, Innovation, Sustainability, and Safety
Philadelphia, PA+5

Multi-Disciplinary Architecture, Structural Engineering, and BIM Solutions
Seattle, WA

Planning, Engineering, Surveying, Landscape Architecture, Development Services
Madison, WI+6

Structural Integrity - Collaborative Solutions
Scottsdale, AZ+2

Quality Engineering Beyond Your Expectations
Rocky Hill, CT+1

Solutions with Sustainability & Growth
Herndon, VA

Professional Engineering Corporation Serving the Tri-State Region of New Jersey, New York and Pennsylvania
Hamilton Township, NJ
Full-service EPC for energy and heavy industrial projects.
Odessa, TX+6

Tailored civil, structural, and marine engineering solutions.
Mooresville, NC

Structural Inspections and Foundation Inspection.
Corona, CA
New Building Structural Design and Integrated Systems Coordination.

National resources, local relationships.
Schaumburg, IL

Excellent, Value-Driven Inspections & Reports
Civil engineering, structural design, and development planning across the Monterey Bay and South San Francisco Bay
Santa Cruz, CA

New Building Structural Design and Renovation & Remodeling Structural Design.
Rockville, MD

Structural Analysis and Design and Building additions and equipment foundations.
Erie, PA

Collaborate Communicate Excel
Lincoln, NE

Stronger by Design.

Multi-disciplined civil engineering services
Haddonfield, NJ
Sound Engineering Solutions for Manufacturing and Commercial Facilities
Caguas, PR