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Grand Power Systems
Grand Power Systems was founded as a closely held engineering and manufacturing firm, led by Thomas Grand as President.
Grand Power Systems
Grand Power Systems was founded as a closely held engineering and manufacturing firm, led by Thomas Grand as President. The company operates from its headquarters in Grand Haven, Michigan, a Great Lakes region known for industrial machining and metalworking. Its ownership structure remains private, with no public family-office designation or disclosed wealth origin. The firm designs and builds power transmission systems, hydraulic pumps and motors, and integrated drivetrains. Its customers are primarily original-equipment manufacturers (OEMs) in off-highway vehicle, military ground-vehicle and industrial-equipment sectors. Grand Power Systems also provides custom fabricated metal components and assemblies. The company focuses on U.S. defense programs and North American energy-sector supply chains. Grand Power Systems employs an engineering-to-order model, serving low-to-medium volume production runs. No team size, annual revenue or fundraising activity is publicly available. The company has not established known philanthropic or adjacent investment vehicles. It does not market itself as a family office or registered investment advisor. The company's structural distinction lies in its vertical integration: Grand Power Systems performs in-house machining, fabrication and assembly, rather than subcontracting to job shops. It also maintains ITAR-compliant facilities for defense-sector work, a regulatory barrier that limits competition from non-U.S. manufacturers. Succession and governance details remain private.
General information
Firm type
other
Year founded
—
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Grand Haven
Corporate office
Grand Haven, Michigan, United States
Principals
Thomas Grand
President
Sector focus
Frequently asked questions
Who controls Grand Power Systems?
Thomas Grand serves as President of Grand Power Systems. The company's ownership is private, with no disclosed investors or parent entity. Public records indicate the firm is registered as a Michigan for-profit corporation.
What does Grand Power Systems manufacture?
The company designs and produces power transmission components including hydraulic pumps, drivetrains, and custom fabricated metal assemblies. It serves OEMs in off-road vehicle, defense ground-vehicle, and energy infrastructure sectors. Products meet military and industrial specifications.
Does Grand Power Systems operate as a family office?
No. Grand Power Systems presents as an operating company in manufacturing and engineering, not as a family office or asset manager. It does not deploy external capital, make investments in other firms, or market itself as an allocator.
What regulatory certifications does Grand Power Systems hold?
The company operates ITAR-compliant facilities to manufacture defense-related components. This restricts its supply chain to U.S. persons and entities, acting as a barrier to foreign competition in military and aerospace programs.
Where is Grand Power Systems based?
The company is headquartered in Grand Haven, Michigan, on the eastern shore of Lake Michigan. The region has a dense concentration of industrial machining, metalworking and automotive-supply firms.
Does Grand Power Systems have disclosed financials?
No. As a privately held corporation, the firm does not publish revenue, profit, AUM or deployment figures. No public filings with the SEC or comparable regulators were identified.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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