Company lists · Data refreshed September 2026

Top 25 Sector focused pe firms based in Chicago, United States

RevenueBase identified 317 sector focused pe firms headquartered in Chicago, United States as of September 2026 and tracks 5,688 professional contacts across them, including 3,482 with verified work emails. New York is the largest hub.

This list covers sector focused pe firms headquartered in Chicago, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review
317Companies
5,688Contacts tracked
3,482Verified emails
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The 25 largest sector focused pe firms based in Chicago, United States

Ranked by team size
Top 25 of 317 sector focused pe firms based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sector focused pe firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 2026201-500367 contacts →

Indirect evidence

“Adams Street Partners is a global investment firm managing a comprehensive suite of private markets investment solutions.”

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-200327 contacts →

Indirect evidence

“Shore Capital, a Chicago-based private equity firm with an office in Nashville, is an investor in lower-middle market companies in the Healthcare, Food and Beverage, Business…”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 2026201-500325 contacts →

Indirect evidence

“Monroe Capital LLC (“Monroe”) is a premier asset management firm specializing in private credit markets across various strategies, including direct lending, technology finance…”

Source: RevenueBase Database · checked Sep 22, 2026
4Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 2026201-500309 contacts →

Partial evidence

“Thoma Bravo is the world’s largest software-focused investment firm, with more than $172 billion in assets under management as of March 31, 2026.”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-200237 contacts →

Indirect evidence

“Founded in 1980, GTCR is a leading private equity firm that invests behind The Leaders Strategy™ – finding and partnering with management leaders in core domains to identify…”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-200147 contacts →

Indirect evidence

“The Vistria Group is building a new kind of private investment firm that seeks to deliver both financial returns and societal impact.”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-200134 contacts →

Indirect evidence

“We use a patient, long-term investment strategy applying our scale, relationships, and experience.”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 202611-50131 contacts →

Indirect evidence

“Experience.”

Source: RevenueBase Database · checked Sep 22, 2026
9Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-200129 contacts →

Partial evidence

“TPG Twin Brook Capital Partners, TPG Angelo Gordon’s middle market direct lending business, is a direct lending finance company focused on providing cash-flow based financing…”

Source: RevenueBase Database · checked Sep 22, 2026
10Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-20099 contacts →

Indirect evidence

“Madison Dearborn Partners, LLC ("MDP") is a leading private equity investment firm based in Chicago that, since its formation in 1992, has raised aggregate capital of…”

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-20086 contacts →

Indirect evidence

“Equity Group Investments (EGI) is the private investment firm founded by Sam Zell in 1968.”

Source: RevenueBase Database · checked Sep 22, 2026
12Strong evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-20085 contacts →

Strong evidence

“Green Courte Partners, LLC is a high energy, fast-paced private equity real estate investment firm focused on building industry-leading companies within niche real estate sectors.”

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-20082 contacts →

Indirect evidence

“Based in Chicago, Waud Capital Partners is a leading growth-oriented private equity firm.”

Source: RevenueBase Database · checked Sep 22, 2026
14Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-20081 contacts →

Partial evidence

“Linden Capital Partners is a Chicago-based private equity firm focused exclusively on leveraged buyouts in the healthcare and life sciences industries.”

Source: RevenueBase Database · checked Sep 22, 2026
15Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-20079 contacts →

Partial evidence

“Flexpoint Ford is a specialist private equity firm focused on financial services and adjacent verticals.”

Source: RevenueBase Database · checked Sep 22, 2026
16Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 202611-5078 contacts →

Indirect evidence

“Wind Point Partners is a Chicago-based private equity investment firm with approximately $6 billion in assets under management*.”

Source: RevenueBase Database · checked Sep 22, 2026
17Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-20078 contacts →

Indirect evidence

“Founded in 2001, RCP Advisors, a strategy of Ridgepost Capital (NYSE: RPC), is a private equity investment firm that provides access to North American small buyout fund managers…”

Source: RevenueBase Database · checked Sep 22, 2026
18Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-20067 contacts →

Partial evidence

“PPC partners with middle-market companies based in North America with positions in the manufactured products and services sectors.”

Source: RevenueBase Database · checked Sep 22, 2026
19Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-20065 contacts →

Indirect evidence

“Morgan Street Holdings is a holding company and private investment group with a growth mindset, owning a diverse portfolio across industries.”

Source: RevenueBase Database · checked Sep 22, 2026
20Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 202611-5064 contacts →

Indirect evidence

“At Water Street, we are dedicated to building market leaders in healthcare.”

Source: RevenueBase Database · checked Sep 22, 2026
21Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 202611-5063 contacts →

Partial evidence

“Chicago Pacific Founders (“CPF”) is a strategic healthcare investment firm with a focus on healthcare services.”

Source: RevenueBase Database · checked Sep 22, 2026
22Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-20060 contacts →

Indirect evidence

“Sterling Partners is an investment management platform.”

Source: RevenueBase Database · checked Sep 22, 2026
23Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 202611-5059 contacts →

Partial evidence

“Tyree & D'Angelo Partners ("TDP") is a private equity investment firm that focuses on control investments in the lower middle market (companies with $1-5M of EBITDA).”

Source: RevenueBase Database · checked Sep 22, 2026
24Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 202611-5059 contacts →

Partial evidence

“For over 40 years, First Analysis has been at the forefront of supporting emerging growth companies and established leaders across high-growth, technology-driven sectors.”

Source: RevenueBase Database · checked Sep 22, 2026
25Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 202611-5057 contacts →

Partial evidence

“CORE is an industrials-focused private equity firm with more than $1.58 billion in total limited partner capital commitments across four funds investing in North American lower…”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 25 of 317 sector focused pe firms based in Chicago, United States

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Sector focused pe firms based in Chicago, United States at a glance

As of Sep 22, 2026
61.2%Verified-email coverage
17.9Average contacts per company
1-10Median size (employees)
321.5%Largest-city concentration · New York
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
208
11-50
77
51-200
25
201-500
5
1,001-5,000
2

Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 317 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among sector focused pe firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Chicago, United States whose own description of what they do matches “sector focused pe firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names sector focused pe firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among sector focused pe firms, and records with no verified work email. Companies headquartered outside Chicago are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 3,482 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 22, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Sector focused pe firms by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names sector focused pe firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many sector focused pe firms are there based in Chicago, United States?

RevenueBase identified 317 sector focused pe firms headquartered in Chicago, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Adams Street Partners, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most sector focused pe firms?

New York leads with 1019 headquartered companies, followed by Chicago (317) and Dallas (309).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,482 verified decision-maker contacts tracked across these 317 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.