Wallem Maritime Services, Inc. (WMSI) commenced crewing operations in the Philippines in 1970 as a department of Wallem Philippines Shipping, Inc. (WPSI Ship Agency). It has already been an industry player for six years before its incorporation in 1976.

Over the years, WMSI led in continuously upgrading service quality to principals that as early as 1988, it was elevated by the Philippine Overseas Employment Administration (POEA) to its Hall of Fame for consistently receiving awards for service distinction.