The manufacturer identification code (MIC) of your craft identification number (CIN or HIN) is SIR. This MIC (SIR) stands for the company name Sarasota Catboat Co which is currently Out of Business. This boat manufacturer code has other company names (SIR 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 (Sarasota Catboat Co) is owned by Munkelwitz, K and is located at 517 S Shore Dr in Osprey 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. Sarasota Catboat Co has started making boats, yachts or other watercraft as of 5/10/1983 and went out of business on (10/25/1984) in the following country: USA.
More details at the US Coast Guard.