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42 North Partners
42 North Partners is the single-family office founded by former Perrigo CEO Mike Jandernoa in 2011.
42 North Partners
Mike Jandernoa established 42 North Partners in 2011. He previously served as CEO and chairman of Perrigo Company. The office manages the family’s capital alongside co-founder Sue Jandernoa. Wealth traces to Mike Jandernoa’s equity in the pharmaceutical manufacturer. The firm allocates across private equity funds, direct co-investments and regional venture programs. It targets early-stage and growth opportunities in North America. Confirmed focuses include AgriTech & FoodTech and Healthcare Services. The team also maintains an affordable housing portfolio in Grand Rapids and Lansing through ICCF. The office employs a compact professional staff that includes dedicated leads for investments, finance, tax and entrepreneurship programs. It operates the Jandernoa Entrepreneurial Mentoring initiative and maintains the Jandernoa Foundation. Mike Jandernoa serves on the board of Business Leaders for Michigan and chairs the policy committee at the West Michigan Policy Forum. The family office integrates investment, operating-company and philanthropic activities under one roof. This structure allows direct oversight of capital deployment and community initiatives without external fund vehicles or outside limited partners.
General information
Firm type
Single Family Office
Year founded
2011
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Grand Rapids
Corporate office
Grand Rapids, MI, United States
Principals
Mike Jandernoa
Co-founder
Sue Jandernoa
Co-founder
Carl
Investment lead
Will
Private equity and co-investment manager
Sector focus
Frequently asked questions
Who runs investment decisions at 42 North Partners?
Carl leads investment activities. Will manages the private equity fund portfolio and co-investment program. Both report within the family office structure.
How does 42 North Partners source proprietary deal flow?
The firm draws on Mike Jandernoa’s network from his Perrigo tenure and regional business leadership roles. It also participates in West Michigan economic development initiatives.
Does 42 North Partners participate in fund commitments or only direct deals?
It commits to private equity funds and runs a separate co-investment program. Both approaches appear in the documented strategy.
What investment stages does 42 North Partners typically target?
The firm targets early stage, seed, start-up and growth opportunities alongside buyouts. It states these stages explicitly on its site.
Where does the underlying wealth come from?
Wealth originates from Mike Jandernoa’s long-term ownership position in Perrigo Company, the OTC pharmaceutical firm where he served as CEO and chairman.
Does 42 North Partners maintain philanthropic structures, and how are they separated?
The Jandernoa Foundation operates alongside the office. Janet coordinates grants for the foundation while also supporting 42 North Partners operations.
How is 42 North Partners related to the Jandernoa Entrepreneurial Mentoring program?
Mike Jandernoa founded the mentoring program. Brandon serves as its executive director and reports within the 42 North Partners organization.
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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