B GIESLER & SONS LTD HIN Decoder

Hull Identification Numbers beginning with ZGS were assigned by the US Coast Guard to B GIESLER & SONS LTD of POWASSAN, ON. 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

ZGS

Location

POWASSAN, ON

In business

since 1975

Status

Listed active in USCG records

B GIESLER & SONS LTD built hulls across both HIN eras (1975–present): boats before August 1984 carry legacy straight-year or model-year date codes; later hulls use the current month-letter format. The decoder handles all three.

Free · no account · the HIN is on the transom, upper starboard (right) corner

The optional $19.99 Boat History Report adds stolen-boat, salvage/auction, incident, and USCG documentation checks — one-time, no subscription (typical boat-history services charge $25+).

B GIESLER & SONS LTD HIN FAQ

What does a B GIESLER & SONS LTD HIN look like?

It starts with the three characters "ZGS" — the Manufacturer Identification Code the US Coast Guard assigned to B GIESLER & SONS LTD — followed by a 5-character hull serial and a 4-character date code, 12 characters total. B GIESLER & SONS LTD built hulls across both HIN eras (1975–present): boats before August 1984 carry legacy straight-year or model-year date codes; later hulls use the current month-letter format. The decoder handles all three.

Is B GIESLER & SONS LTD still in business?

USCG records list B GIESLER & SONS LTD of POWASSAN, ON in the MIC database (registered 1975).

How do I decode the year on a B GIESLER & SONS LTD HIN?

On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. B GIESLER & SONS LTD built hulls across both HIN eras (1975–present): boats before August 1984 carry legacy straight-year or model-year date codes; later hulls use the current month-letter format. The decoder handles all three. Enter the full 12-character HIN above and the decoder works it out, including the legacy formats.

Other builders in ON

Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "B GIESLER & SONS LTD HIN Decoder," carwhere.com/hin-decoder/zgs, last verified 2026-06-12.