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Marine surveyors in District of Columbia
2 marine surveyors on record in the District of Columbia, all verified against the SAMS or NAMS roster. Contact details are below — confirm a surveyor's service area, credentials, and availability with them directly before hiring.
2Surveyors listed
1,742Registered boats (2024)
~871Boats per surveyor
Washington, DC · 2
Guy R. Nolan
Cascade Corporation
Washington, DC
Verified: SAMS AMSSelf-reported: ABYC, ABYC: Diesel Engines, ABYC: Marine Corrosion, ABYC: Marine Electrical
Services offered: Damage Claims, Houseboats, Hull and Machinery, Passenger Vessel
Zachary C. Trede
Thornton Tomasetti
Washington, DC
Verified: NAMS CMSServices offered: Cargo, Hull and Machinery, Yachts and Small Craft
Accreditations shown as Verified were checked against the SAMS and NAMS public rosters on 17 September 2026. Listings marked "Listed, not verified" come from public directories and the surveyor's own website; they are not endorsements. Surveyors can correct or remove a listing at any time from the claim-your-listing page.
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