MARQUIS MARINE ENTERPRISES HIN Decoder
Hull Identification Numbers beginning with MML were assigned by the US Coast Guard to MARQUIS MARINE ENTERPRISES of BALTIMORE, MD. The company is recorded as out of business since 2019 — common for older hulls, and useful to know when hunting parts or records. Enter the full 12-character HIN below for build date, model year, and serial — free, no account.
MIC
MML
Location
BALTIMORE, MD
In business
since 1990
Status
Out of business (2019)
MARQUIS MARINE ENTERPRISES hulls (1990–2019) 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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MARQUIS MARINE ENTERPRISES HIN FAQ
What does a MARQUIS MARINE ENTERPRISES HIN look like?
It starts with the three characters "MML" — the Manufacturer Identification Code the US Coast Guard assigned to MARQUIS MARINE ENTERPRISES — followed by a 5-character hull serial and a 4-character date code, 12 characters total. MARQUIS MARINE ENTERPRISES hulls (1990–2019) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is MARQUIS MARINE ENTERPRISES still in business?
USCG records list MARQUIS MARINE ENTERPRISES as out of business since 2019. That's common for older hulls — the HIN still decodes normally, and the out-of-business date helps date the boat and guides parts-hunting toward salvage and owner groups rather than a dealer network.
How do I decode the year on a MARQUIS MARINE ENTERPRISES HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. MARQUIS MARINE ENTERPRISES hulls (1990–2019) 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 MD
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "MARQUIS MARINE ENTERPRISES HIN Decoder," carwhere.com/hin-decoder/mml, last verified 2026-06-12.