Walstrom Marine Acquires Grand Bay Marine

Walstrom Marine Acquires Algonac Harbour Club

July 21, 2023

Transportation

Walstrom Marine has acquired Algonac Harbour Club, a family-owned full-service marina on the St. Clair River in Algonac, Michigan. The investor group led by Continuum Ventures (the DeVos family office) — which previously invested in Walstrom Marine — and several family investors will own the marina; founder Peter Beauregard Sr. will serve as a consultant and Pete Beauregard Jr. will retain an ownership stake.

Continuum Ventures Acquires Majority Stake in Walstrom Marine

June 15, 2021

Retail

Continuum Ventures, the investment management company for Doug and Maria DeVos, has acquired a majority ownership stake in Walstrom Marine as part of the company's long-term succession plan. Colony Marine and the James Mestdagh family took minority stakes, while the Ward Walstrom family remains a minority owner and Tom Ervin continues as President. The investment aims to support growth and preserve Walstrom’s family-run full-service boating operations across Northern Michigan.

TopSide Marinas Acquires Bay Marine Marinas in Waukegan and Sturgeon Bay

May 30, 2024

Real Estate

TopSide Marinas has acquired two Lake Michigan marinas — Bay Marine of Chicago (Waukegan, IL) and Bay Marine of Sturgeon Bay (Sturgeon Bay, WI). The previous owners, Matt and Mark Felhofer, will continue to own and operate Bay Marine Yacht Sales and will lease back showroom and office space at both locations as TopSide expands its Great Lakes footprint.

MarineMax Acquires Nisswa Marine

July 1, 2021

Retail

MarineMax, Inc. acquired Nisswa Marine, a full-service Midwest boat dealer headquartered in Nisswa, Minnesota, strengthening its storage and service offerings in the region. Nisswa generated over $35 million in revenue in 2020 and will continue to be operated by the Wiczek family leadership team under MarineMax ownership.

Continuum Ventures Acquires Majority Stake in Action Water Sports

March 13, 2023

Retail

Continuum Ventures, the investment arm of the Doug and Maria DeVos family, has acquired a majority stake in Action Water Sports, a four-location premium boat dealership headquartered in Hudsonville, Michigan. Founder Jerry Brouwer will remain as a partner and president as Continuum integrates Action into its growing marine platform to expand its dealer, service, and marina footprint.

BlueWater Marinas and Bain Capital Real Estate Acquire Bayside Marine

February 16, 2026

Real Estate

BlueWater Marinas, backed by Bain Capital Real Estate, has acquired Bayside Marine, a full-service marina in Duxbury, Massachusetts. The Kent family will remain in place to oversee day-to-day operations as the acquisition expands BlueWater/Bain's portfolio of East Coast marina properties.