Key facts
- Madison Dearborn Partners is a private equity firm based in Chicago, Illinois with 4 tracked portfolio companies.
- Notable positions include The Ardonagh Group, Carnegie Learning, Harmonia Holdings Group, Nichols Cauley.
- Madison Dearborn Partners has 25 funds on record, raising $41.0B across the 25 that report a size.
- The team roster lists 2 people.
About Madison Dearborn Partners
Founded in 1992, Madison Dearborn Partners is a private equity firm based in Chicago, Illinois. The firm seeks to invest in middle and upper-middle-market companies based in the United States. The firm prefers to invest in basic industries, financial services, healthcare, technology & and government sectors. This firm is a Registered Investment Adviser (RIA).
Registered with the SEC
Form ADV · 2026-03 · CRD 157349- Regulatory AUM
- —
- Private fund assets
- $21.5B
- Private funds
- 57 · 57 private equity
- Staff
- 73
- Registered office
- CHICAGO, IL
- SEC status
- Approved
Reports custody of client assets.
Source: SEC Investment Adviser Public Disclosure, Form ADV (registered as MADISON DEARBORN PARTNERS, LLC).
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Portfolio, priced
4 companies · by our current valuations| Company | Industry | Valuation | First invested | Role |
|---|---|---|---|---|
| The Ardonagh Group | — | $14.0B | — | |
| Carnegie Learning | — | $75.0M | — | |
| Harmonia Holdings Group | — | — | — | |
| Nichols Cauley | — | — | — |
Funds
6 of 25 recorded- Madison Dearborn Capital Partners IX Executive-B, L.P.2025$3.0B
- Madison Dearborn Capital Partners IX-A, L.P.2025$3.0B
- Madison Dearborn Capital Partners IX-B, L.P.2025$3.0B
- Madison Dearborn Capital Partners IX Executive-A, L.P.2025$3.0B
- Madison Dearborn Capital Partners IX-C, L.P.2025$3.0B
- MADISON DEARBORN CAPITAL PARTNERS VIII EXECUTIVE-B2, L.P.2020$195.0M
$41.0B raised across the 25 funds that report a size
All 25 funds →Team
2 people on record — 2 with verified contacts
Partners, principals, and the people who answer a pitch. Pro members reveal contacts with credits.
Frequently asked
- What companies does Madison Dearborn Partners invest in?
- Madison Dearborn Partners has 4 recorded portfolio companies, including The Ardonagh Group, Carnegie Learning, Harmonia Holdings Group, Nichols Cauley.
- What is Madison Dearborn Partners's AUM?
- Madison Dearborn Partners manages approximately $16.1B in assets.