Company lists · Data refreshed September 2026

Top 25 Private equity law firms based in Chicago, United States

Name: Private equity law firms based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 256 companies tracked

RevenueBase identified 256 private equity law firms headquartered in Chicago, United States as of September 2026 and tracks 30,881 professional contacts across them, including 19,278 with verified work emails. New York is the largest hub.

This list covers private equity law 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

256Companies

30,881Contacts tracked

19,278Verified emails

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The 25 largest private equity law firms based in Chicago, United States

Ranked by team size

Top 25 of 256 private equity law firms based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names private equity law firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Kirkland & EllisStrong evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	5,001-10,000	8,449
	“As one of the world’s leading law firms, we serve a broad range of clients with market-leading practices in private equity, M&A and other complex corporate transactions…” Source: company website · checked Sep 5, 2026
2	Sidley Austin LLPPartial evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	1,001-5,000	5,169
	“Sidley is an elite global law firm.” Source: company website · checked Sep 5, 2026
3	Mayer BrownPartial evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	1,001-5,000	4,177
	“Mayer Brown is a leading international law firm, positioned to represent the world’s major corporations, funds and financial institutions in their most important and complex…” Source: company website · checked Sep 5, 2026
4	Seyfarth Shaw LLPIndirect evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	1,001-5,000	2,167
	“High stakes.” Source: company website · checked Sep 5, 2026
5	Katten Muchin Rosenman LLPPartial evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,495
	“Katten is a full-service law firm with nearly 650 attorneys in locations across the United States and in London and Shanghai.” Source: company website · checked Sep 5, 2026
6	Lincoln InternationalStrong evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,489
	“Lincoln International, Inc.(NYSE: LCLN) is a trusted investment banking advisor to business owners and senior executives of leading private equity firms and their portfolio…” Source: company website · checked Sep 5, 2026
7	Jenner & BlockIndirect evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	501-1,000	1,194
	“At Jenner & Block, we shape what’s next through experience, vision, and judgment.” Source: company website · checked Sep 5, 2026
8	Hinshaw & Culbertson LLPPartial evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	501-1,000	1,188
	“Hinshaw & Culbertson LLP is a U.S-based law firm with offices nationwide.” Source: company website · checked Sep 5, 2026
9	Chapman And Cutler LLPPartial evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	201-500	565
	“Chapman is a law firm focused on finance.” Source: company website · checked Sep 5, 2026
10	Amundsen Davis, LLCPartial evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	201-500	542
	“Amundsen Davis is a law firm comprised of over 250 attorneys headquartered in Chicago.” Source: company website · checked Sep 5, 2026
11	Neal, Gerber & Eisenberg LLPPartial evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	201-500	353
	“Neal Gerber Eisenberg is a Chicago-based law firm whose attorneys share a culture of teamwork and devotion to personalized client service to advance our clients’ business…” Source: company website · checked Sep 5, 2026
12	Levenfeld Pearlstein, LLCPartial evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	51-200	254
	“Formed in Levenfeld Pearlstein provides the sophisticated skills and resources of a big law firm with the personal attention of a small law firm.” Source: company website · checked Sep 5, 2026
13	Much Shelist, P.CIndirect evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	51-200	203
	“We're Much.” Source: company website · checked Sep 5, 2026
14	Dpo&co.Strong evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	51-200	187
	“DPO & Co specializes in helping Private Equity firms and their portfolio companies gain fact-based insights during the diligence process and realize post-close synergies and value…” Source: company website · checked Sep 5, 2026
15	Masuda FunaiIndirect evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	51-200	102
	“Since its founding in 1929, Masuda Funai has focused its practice on successfully representing international and domestic companies entering, operating and expanding in the United…” Source: company website · checked Sep 5, 2026
16	Madison Dearborn Partners, LLCStrong evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	51-200	99
	“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: company website · checked Sep 5, 2026
17	Flexpoint FordStrong evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	51-200	79
	“Flexpoint Ford is a specialist private equity firm focused on financial services and adjacent verticals.” Source: company website · checked Sep 5, 2026
18	Wind Point PartnersStrong evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	11-50	78
	“Wind Point Partners is a Chicago-based private equity investment firm with approximately $6 billion in assets under management*.” Source: company website · checked Sep 5, 2026
19	RCP AdvisorsStrong evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	51-200	78
	“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: company website · checked Sep 5, 2026
20	Hughes Socol Piers Resnick & Dym, LTDPartial evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	51-200	76
	“HSPRD is a full-service law firm built on strong client relationships and supported by smart, skilled attorneys.” Source: company website · checked Sep 5, 2026
21	Duggan Bertsch, LLCStrong evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	51-200	75
	“A law firm dedicated to thoughtful, innovative and uncompromising legal representation for the Private Client.” Source: company website · checked Sep 5, 2026
22	Golan Christie Taglia LLPPartial evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	51-200	61
	“Golan Christie Taglia LLP is a law firm dedicated to delivering successful results while providing our clients the highest levels of quality and personal service.” Source: company website · checked Sep 5, 2026
23	Tyree & D'angelo PartnersStrong evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	11-50	59
	“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: company website · checked Sep 5, 2026
24	Patzik Frank And Samotny LTDPartial evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	11-50	54
	“PFS is a law firm that serves a diverse group of clients in a wide variety of business and commercial matters.” Source: company website · checked Sep 5, 2026
25	Latimer Levay Fyock LLCIndirect evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	11-50	54
	“Latimer LeVay Fyock LLC aim is to deliver sound legal advice to our clients within the specific context of their respective business and personal objectives.” Source: company website · checked Sep 5, 2026

Showing 25 of 256 private equity law firms based in Chicago, United States

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Private equity law firms based in Chicago, United States at a glance

As of Sep 5, 2026

1-10Median size (employees)

New YorkLargest hub · 630 HQs

Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

146

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 256 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 private equity law firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “private equity law firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among private equity law 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 an evidence 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, 19,278 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 5, 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.

Private equity law firms by metro in the United States

Frequently asked

How many private equity law firms are there based in Chicago, United States?

RevenueBase identified 256 private equity law 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?

Kirkland & Ellis, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most private equity law firms?

New York leads with 630 headquartered companies, followed by Chicago (256) and Los Angeles (213).

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 19,278 verified decision-maker contacts tracked across these 256 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 5, 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 SmartSearch, 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.