WHERE DIVING EXPERIENCE
DRIVES ENGINEERING.
SERVICE-DISABLED VETERAN-OWNED SMALL BUSINESS
Precision engineering and execution for complex underwater projects — led by a PE with decades in the water.
Built from experience
Henderson & Associates was built from firsthand experience in the most demanding environments underwater work can offer.
Founded by Shawn Henderson, P.E., a former U.S. Navy diver and licensed professional engineer with over 30 years of diving experience, H&A brings accountability, safety, and technical leadership to an industry that often operates too far from the work itself.
Every project reflects a commitment to doing the job right, backed by training and decades of commercial diving experience, real-world execution, and engineering discipline.
Engineering alone doesn't solve
underwater challenges.
The difference comes when both disciplines work as one.
That’s where problems get solved correctly the first time and projects stay on track.
PE-Led Oversight
Every project is guided by a licensed professional engineer with direct involvement in underwater operations. Engineering oversight is never delegated.
Real-World Diving Experience
Training and decades of commercial diving experience, U.S. Navy diving, and underwater welding inform every decision we make — from structural design to dive operations.
Direct Accountability
The same team that plans the work stays connected through execution and final verification. No handoffs. No confusion around responsibility.
Assess. Design. Verify. Execute.
Underwater Inspection and Condition Assessment
Reliable decisions begin with reliable information. H&A performs engineering-led underwater inspections and condition assessments for vessels, marine infrastructure, and waterfront facilities.
Ocean Engineering and Naval Architecture
Field-aware design for vessels, waterfront infrastructure, and underwater construction projects.
Quality Assurance, Quality Control and NDT
Independent verification connected to the engineering intent behind the work.
Dive Operations and Project Execution Support
Technical leadership that keeps complex marine work moving from planning through closeout.
NAVFAC
& Defense
Prime
Contractors
Shipyards & Operations
Maritime & Commercial Operators
Municipal &
Public Works
