Jay & Kay Manufacturing, LLC is a company based out of 72 Louise St, Croswell, Michigan, United States. Jay & Kay Manufacturi ... ng, LLC has been a leading custom OEM supplier to the Marine Industry for over 30 years. In our years of operation, we have fostered a reputation for quality, on time delivery, and unmatched customer service and communication. As a full-service manufacturer, we can consistently and efficiently deliver the highest quality product on any project, from design through finished completion. This allows us to offer not only attractive timelines, but also incredible flexibility and ingenuity during every project. read more