Witmark was a catalog showroom and jewelry/electronics chain that operated in West Michigan from 1969 to 1997. The chain was founded by Paul Leven.Over its nearly 30-year history, Witmark dominated the jewelry market with an average of a 34% market share. The organization made it a point to develop and keep close ties with the communities the stores served.By the early 1990s, Witmark's earnings began to decrease due to continued involvement in unprofitable categories outside of jewelry.