Serving our clients in 5 core areas

Structural Engineering

Civil Engineering

Repair and Restoration

Construction Support / Inspection and Testing


We are a consulting firm specializing in structural engineering; civil engineering; repair & restoration; construction support, inspection & testing; and surveying. We maintain a highly motivated team of professionals whom through experience, education, dedication, and creativity, are challenged to meet the needs of our clients, our society, and our environment.  Ryan Biggs | Clark Davis is licensed to practice in over 25 states and is a certified WBE in New York and Massachusetts.  Learn more.


Let us put four decades of experience to work for you.

Structural Building Design

Let us give your building the strength to endure.


Let us transform your treasures of the past into practical spaces for today.

Investigations, Studies, Reports

Let us help you uncover a concern before it becomes a problem.

Historic Preservation & Masonry Restoration

Let us conserve the history of your structure for the benefit of future generations.


Let us restore and strengthen your critical infrastructure.

Contractor Support Services

Let us provide the benefit of our extensive experience in a timeframe that meets your needs.

Nondestructive Testing

Let us demonstrate how cutting-edge technology can extend the life of your structure.

Special Inspections

Let us assist you to ensure the quality and longevity of your building.