
D'Appolonia Engineers
We create foundations for the future.
Pittsburgh, PA
Explore capabilities, project experience, and office locations to build your shortlist.

We create foundations for the future.
Pittsburgh, PA

Specializing in geological, geotechnical, environmental, and dam services

Engineering, Surveying & Architecture in Southeast Alaska
Ketchikan, AK+1

It's About Our Clients!
Houston, TX+1

Engineering Solutions You Can Build Upon
Jackson, MS+1

Engineering Solutions for the Built World
Carrollton, TX+1

Integrating Systems and Facilities
Dayton, OH

Solid Relationships. Solid Solutions.
Urbandale, IA

Locally Rooted. Client Focused. Technically Strong.
Peoria, IL+1

Shaping Tomorrow, Today
Alachua, FL

Environmental Assessment & Remediation and ASTM Phase I & II Assessments.
Grand Junction, CO
Supplying your design and engineered success!
Las Vegas, NV+1

Civil & Environmental Engineering and Septic System Design.
Westerly, RI
Business leader in environmental, engineering, mission support, and construction.
Idaho Falls, ID

On Time, In Budget, Right the First Time
Chattanooga, TN

Cost Effective Quality & Services
Aiea, HI+1
Turnkey Services to Drive the Blue Economy
Stuart, FL

Civil Engineers, Land Surveyors, Environmental Consultants & Landscape Architects
Woburn, MA+2

Listen. Understand. Develop.
Santa Rosa, CA
Sound Engineering Solutions for Manufacturing and Commercial Facilities
Caguas, PR

Where quality, integrity and service are paramount.
South Salt Lake, UT+2

Mission-Ready Solutions
Compton, CA+1

Civil Engineering and Drainage Design.
Monroe, LA
Civil Engineering and Environmental Engineering.
St. Louis, MO