Built in Lexington, SC. South Carolina DNR used them. Pretty good boats.
According to the USCG Manufacturers' Indentification Code (MIC) database, they went out of business in 1989 and were reactivated in 2005. Here's a link to the USCG MIC which has some names, an address and telephone numbers: http://www.uscgboating.org/recalls/mic_detail.aspx?id=GPC