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Private equity firms in Illinois

DFX tracks 246 private equity firms headquartered in Illinois. The most active in the last 36 months: Edgewater Services, LLC (49), Wind Point Partners (44), Benford Capital Partners Management, L.P. (20).

The most recent deal on record with a named target by a firm based in Illinois: William Blair & Company L.L.C. backed Armentum Partners, announced 23 October 2026.

Updated . Ranked by deals in the last 36 months, then reported PE fund assets, then PE funds.

#NameDeals, last 36 monthsPE fundsPE fund assets (2024 ADV)Latest investment
1Edgewater Services, LLC
Buyout firm, Industrial services, Manufacturing
4934$2.8B17 August 2026
2Wind Point Partners
Buyout firm, Industrial services, Manufacturing
4426$8.6B15 September 2026
3Benford Capital Partners Management, L.P.
Buyout firm, Consumer products and retail, Consumer services
2014$487M8 September 2026
4Granite Creek Capital Partners
Buyout firm, Industrial services, Manufacturing
155$564M22 September 2026
5Core Industrial Partners, LLC
Buyout firm, Manufacturing, Industrial services
128$1.8B13 October 2026

+241 additional private equity firms in Illinois are on the graph

Every name, figure and source on each row, and the record behind it, for 7 days.

How this list is made

  • A firm is listed when DFX classes it as private equity (buyout, growth equity, hybrid managers, funds of funds, secondaries, infrastructure, special situations, real estate private equity and venture firms with PE activity; multi-strategy managers that also lend are kept, firms whose only strategy is private credit are on the private credit city pages) and its headquarters state on record is Illinois.
  • A firm also needs evidence on record: a Form ADV filing, a private equity fund, a Form D or a deal. Fund general partner, sidecar, feeder and special purpose vehicles are left out, so one sponsor is not counted once per fund.
  • Deals counts the transactions in the last 36 months in which DFX records the firm as the sponsor (the buyer or backer), each tied to a named public source (an announcement, a press release or a filing).
  • Latest investment is the date of the most recent investment DFX has on record for the firm. Add-on acquisitions by its portfolio companies count as investments, so that date can be an add-on rather than a new platform deal.
  • PE fund assets is the gross asset value of the firm's private equity funds as reported on its 2024 Form ADV; it is a reported figure, not fund size or dry powder. PE funds counts the private equity funds on record from Form ADV and Form D.
  • Ranked by deals in the last 36 months, then reported PE fund assets, then PE funds on record.
  • Each page lists at least 15 firms, at least 5 of them with a deal in the last 36 months; DFX adds places in waves.

What is counted

Included

  • Private equity firms headquartered in Illinois, with evidence on record.

Left out

  • Candidate firms DFX has not yet classed as private equity, and organizations it classed as not private equity.
  • Firms whose only strategy is private credit, and family offices' direct investing arms.
  • Records with no filing, fund, Form D or deal on record.
  • Fund general partner, sidecar, feeder and special purpose vehicles.

Notable facts

  • 58 of the 246 firms (24%) were the sponsor of at least one deal DFX has on record in the last 36 months, 313 deals in all.
  • Among the 75 firms with a deal sector on record, the sectors most often bought into: industrial services (40 firms), manufacturing (35 firms), software (31 firms).
  • 152 firms report $643.4B of gross assets in private equity funds on 2024 Form ADV filings.
  • 52 firms in Illinois filed a Form D for a fund offering in the last 12 months.
  • By strategy, of the 246 firms: buyout firms (153), hybrid managers (56), funds of funds (20), venture firms with PE activity (11), growth equity firms (4), infrastructure investors (1), real estate PE firms (1).
  • The firms are headquartered in 18 cities; the most are in Chicago (201), Evanston (7), Oak Brook (5).

Related questions

Sources

  • SEC Form ADV registrations (Schedule D private fund reporting)
  • SEC Form D notices of exempt fund offerings
  • Deal announcements and press releases, each linked from the transaction record

Every source DFX reads is listed with its rights determination on the sources page.

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