Madison Dearborn Partners
Private equity firm focused on middle-market buyouts and growth equity.
Available information varies by company and source.
Profile record updated:
Company facts
- Official name
- Madison Dearborn Partners, LLC
- Entity type
- COMPANY
- Founded
- 1992
- Headquarters
- 70 West Madison Street, Suite 4600, Chicago, IL 60602
- Company size
- 50–200
- Market role
- Private Equity, VC & Investor
- Official website
- mdcp.com
What Madison Dearborn Partners does
The firm manages private equity funds on behalf of institutional investors and deploys that capital into middle-market companies through buyouts and growth equity transactions. It creates value by selecting sectors where it has repeatable expertise, acquiring stakes in businesses, supporting operational and strategic improvement, and monetising investments through exits. The business is asset-management led, with fund formation, deployment, portfolio oversight and exit execution as the core operating cycle.
Category differentiation
This company is a private equity investment firm, not an operating software vendor, agency or publisher. It manages investment funds and acquires companies rather than selling advertising or enterprise SaaS products directly.
Strategic context
AI-supported assessment from the existing company research; distinguish interpretation from sourced facts.
Madison Dearborn Partners, LLC is a privately held private equity firm based in Chicago. The firm invests in middle-market buyouts and growth equity, with stated sector exposure including financial services, healthcare, and technology and government. Its core customers are institutional limited partners allocating capital to private equity funds, while its operating focus is sourcing, acquiring, supporting and exiting portfolio companies. The firm generates revenue through private equity fund economics rather than product sales. Value creation comes from raising committed capital, deploying it into control or significant equity investments, supporting portfolio performance, and realising gains through exits. Its positioning is that of an established sponsor with multiple large funds and a long operating history since 1992.
Business model & monetisation
The firm monetises through private equity fund management fees on committed or invested capital and carried interest tied to portfolio investment performance. Additional economics can include transaction-related and portfolio-company-related fees where permitted by fund structures, but the core model is long-duration fund management plus performance participation.
- Fund management fees
- Service Fee
- Carried interest on realised investment gains
- Percentage Take-Rate
- Transaction and portfolio-related fees
- Service Fee
Products & capabilities
No products with linked sources are available in this view.
Recent recorded signals
Dates refer to the source publication. Older entries are historical context, not evidence of a new event.
AEVEX Investors Seek Lead Plaintiff in Securities Class Action Lawsuit
Legal · Recorded impact score: 1/5
Robbins Geller Rudman & Dowd LLP and the Law Offices of Howard G. Smith have announced a lead plaintiff deadline of October 20, 2026, for investors who suffered losses in AEVEX Corp. (NYSE: AVEX) to lead a securities fraud class action lawsuit. The lawsuit, Rosenberg v. AEVEX Corp., alleges that between April 14 and June 4, 2026, defendants made false and misleading statements about a 180-day lock-up agreement following the April 2026 IPO. It claims a pre-arranged plan allowed an early secondary public offering (SPO) of eight million shares, with net proceeds going entirely to Madison Dearborn Partners, leaving AEVEX with zero. This caused a significant stock drop. Investors who purchased AEVEX Class A common stock during the class period have until October 20, 2026, to seek appointment as lead plaintiff.
- The lead plaintiff deadline is October 20, 2026, for the AEVEX securities class action lawsuit.
- The lawsuit alleges false statements made between April 14 and June 4, 2026, regarding a 180-day lock-up agreement.
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Questions about Madison Dearborn Partners
What is Madison Dearborn Partners?
Madison Dearborn Partners is a privately held Chicago-based private equity firm that invests in middle-market buyouts and growth equity.
Who uses Madison Dearborn Partners?
Its direct customers are institutional investors and limited partners that commit capital to its funds, along with management teams and sellers involved in transactions.
How does Madison Dearborn Partners make money?
It earns management fees for running private equity funds and carried interest when portfolio investments are exited at a profit.
Sources & coverage
This profile uses public, official and technically observable information. Missing information does not prove that a product or relationship does not exist. The list below does not imply that every profile statement has been verified.
12 publicly documented primary sources and citations linked across the market graph.
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