DEFENDER INDUSTRIES, INC. HIN Decoder
Hull Identification Numbers beginning with DEI were assigned by the US Coast Guard to DEFENDER INDUSTRIES, INC. of WATERFORD, CT. The builder is listed in the USCG MIC database. Enter the full 12-character HIN below for build date, model year, and serial — free, no account.
MIC
DEI
Location
WATERFORD, CT
In business
since 2011
Status
Listed active in USCG records
DEFENDER INDUSTRIES, INC. hulls (2011–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Free · no account · the HIN is on the transom, upper starboard (right) corner
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DEFENDER INDUSTRIES, INC. HIN FAQ
What does a DEFENDER INDUSTRIES, INC. HIN look like?
It starts with the three characters "DEI" — the Manufacturer Identification Code the US Coast Guard assigned to DEFENDER INDUSTRIES, INC. — followed by a 5-character hull serial and a 4-character date code, 12 characters total. DEFENDER INDUSTRIES, INC. hulls (2011–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is DEFENDER INDUSTRIES, INC. still in business?
USCG records list DEFENDER INDUSTRIES, INC. of WATERFORD, CT in the MIC database (registered 2011).
How do I decode the year on a DEFENDER INDUSTRIES, INC. HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. DEFENDER INDUSTRIES, INC. hulls (2011–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits. Enter the full 12-character HIN above and the decoder works it out, including the legacy formats.
Other builders in CT
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "DEFENDER INDUSTRIES, INC. HIN Decoder," carwhere.com/hin-decoder/dei, last verified 2026-06-12.