Frederick, Seibert & Associates, Inc.
Excellence in Customer Service
Hagerstown, MD+3
Explore capabilities, project experience, and office locations to build your shortlist.
Excellence in Customer Service
Hagerstown, MD+3

Targeting Your Technical Challenges

Results With No Excuses
Laurel, MD+4
Civil & Environmental Engineering
Pittsfield, MA
Geotechnical Engineering and Subsurface Exploration and Soil Borings.
Houston, TX

Engineering services virtually everywhere
Concordia, KS+2
Better, Faster, Different
Northville, MI+3

Civil Engineering Design and Construction Management and Highway design.
Flint, MI

See it. Solve it. Stand by it.
Pocatello, ID
Coastal Protection and Restoration and Drainage and Stormwater.

A Greener Tomorrow
Roswell, GA
Connect by design.
Buffalo, NY+3

Professional Chemical Engineering Design & Process Solutions
Redondo Beach, CA

Over 90 Years of Delivering Excellence
Salina, KS+4

Value engineering to build a safer tomorrow.
Marietta, GA

Engineering a more resilient earth. And a more sustainable world.
Northville, MI

Engineering Excellence Since 1956
Boulder, CO+5
Building a better world, one project at a time

Commitment, Leadership, Teamwork.
Binghamton, NY

Integrity always.
Cheyenne, WY

Delivering Your Vision
Columbia, MO

Engineering Excellence Every Time
Geotechnical, environmental, and materials testing services in South Florida
Hialeah, FL

Connecting Communities, Connecting People.
Miami, FL