The manufacturer identification code (MIC) of your craft identification number (CIN or HIN) is ISI. This MIC (ISI) stands for the company name Intl Shipbuilders Inc which is currently Out of Business. This boat manufacturer code has other company names (ISI sometimes goes by these name(s) if applicable: , , , or ). This could happen if the US Coast Guard reissued the MIC to a new company after the first went out of business.
This company (Intl Shipbuilders Inc) is owned by Pete Wisser and is located at 2051 Griffin Rd in Ft Lauderdale state of Fl. It manufactured this vessel and placed your HIN or CIN on the hull. This Boat maker is not owned by a parent company. Intl Shipbuilders Inc has started making boats, yachts or other watercraft as of 6/2/1982 and went out of business on (10/21/1988) in the following country: USA.
More details at the US Coast Guard.
The US Coast guard provides this comment about this watercraft manufacturer: Mfg 29' I/o Race Boatpmr 08/29/85.