MarineMax, a global retailer and servicer of recreational watercraft, announced that Dan Derfler has reached 50 years of service as a marine technician at MarineMax Nisswa. His career with the company began as a summer job repairing outboard motors when he was 16. … WSB, a Golden Valley-based engineering firm, announced it celebrate its 30th anniversary in business on Oct. 3.

Sun Country Airlines announced the appointment of Twin Cities businessperson Wendy Schoppert to its board of directors, effective Oct. 1. Schoppert currently chairs the board at The ODP Corp./Office Depot and is a member of the Davita Inc. and Fossil Inc. boards. Her executive career includes Sleep Number Corp., U.S. Bank, American Airlines, Northwest Airlines and America West Airlines. Sun Country Airlines is based

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