Madison Dearborn Partners is a private equity firm. Based in Chicago, Illinois, United States. Known portfolio companies include Zilliant, SpiderOak, The Ardonagh Group, Air Control Concepts, Ankura and Harmonia Holdings Group, 10 companies in all.
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Investment focus
- Stage
- GrowthLate-StageSeed
- Sector
- FinTechHealthcareSaaS
Who to pitch at Madison Dearborn Partners
Madison Dearborn Partners portfolio companies (10)
- Zilliant
- SpiderOak
- The Ardonagh Group
- Air Control Concepts
- Ankura
- Harmonia Holdings Group
- Hobbs & Associates
- Insurance Office of America
- Nichols, Cauley & Associates
- Omni Federal
Co-investors
Funds that share portfolio companies with Madison Dearborn Partners.
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About Madison Dearborn Partners
The firm's listing covers sectors FinTech, Healthcare and SaaS, and focus areas Business Intelligence, Cloud Infrastructure, Collaboration and Data Analytics; known deals cluster at Growth, Late-Stage and Seed.
Of the 24 people on file at Madison Dearborn Partners, Jai Shekhawat (Chairman, Technology Advisory Board), Tom Souleles (Vice Chairman) and Matthew Denison (Managing Director) are listed as the contacts to approach first.
Across the known portfolio, 5 co-investors appear alongside Madison Dearborn Partners, including Stone Point Capital, Trellis Partners and ABS Ventures.
Frequently asked questions
What is Madison Dearborn Partners?
Madison Dearborn Partners is a private equity firm based in Chicago, Illinois, United States, with a known portfolio of 10 companies. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What does Madison Dearborn Partners invest in?
Listed sectors include FinTech, Healthcare and SaaS; listed focus areas include Business Intelligence, Cloud Infrastructure, Collaboration and Data Analytics. Those tags come from the portfolio attached to the firm, so they describe what has been backed rather than a stated mandate for what comes next.
What stage does Madison Dearborn Partners invest at?
The known deals of Madison Dearborn Partners include Growth, Late-Stage and Seed rounds. Check that against your own round before reaching out: stage mismatch is the most common reason a well matched sector still goes nowhere.
Who should I pitch at Madison Dearborn Partners?
3 of the 24 people on file at Madison Dearborn Partners are listed as contacts for the firm. All 24 have their own profile page.
How do I contact Madison Dearborn Partners?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The 24 people attached to the firm have their own pages, each showing whether an address is on file for them.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal