Company lists · Data refreshed September 2026

Top 25 Contract dispute specialists based in Chicago, United States

RevenueBase identified 55 contract dispute specialists headquartered in Chicago, United States as of September 2026 and tracks 1,563 professional contacts across them, including 813 with verified work emails. New York is the largest hub.

This list covers contract dispute specialists 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 19, 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 19, 2026 86% judged on-target in blind review
55Companies
1,563Contacts tracked
813Verified emails
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The 25 largest contract dispute specialists based in Chicago, United States

Ranked by team size
Top 25 of 55 contract dispute specialists based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to contract dispute specialists: 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 19, 2026501-1,0001,188 contacts →

Indirect evidence

“Hinshaw & Culbertson LLP is a U.S-based law firm with offices nationwide.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 202651-20068 contacts →

Indirect evidence

“Downey & Lenkov LLC was founded in 2001 by professionals from large Chicago law firms who are committed to providing world-class service but prefer a mid-sized firm setting.”

Source: RevenueBase Database · checked Sep 19, 2026
3Partial evidenceChicago, IL, United StatesHQ checked Sep 19, 202611-5059 contacts →

Partial evidence

“Clients come to ADR Systems for the best in dispute resolution services.”

Source: RevenueBase Database · checked Sep 19, 2026
4Partial evidenceChicago, United StatesHQ checked Sep 19, 202611-5036 contacts →

Partial evidence

“Sperling & Slater has a nationwide and international practice focusing on complex commercial and business disputes.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 202611-5027 contacts →

Indirect evidence

“The Business Lawyers to Call in a Crisis We are trial lawyers for businesses, professionals, and entrepreneurs.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceChicago, United StatesHQ checked Sep 19, 202611-5019 contacts →

Indirect evidence

“CMN is distinguished by its aggressive and business-minded approach to complex civil litigation, business litigation, and regulatory proceedings.”

Source: RevenueBase Database · checked Sep 19, 2026
7Partial evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-1016 contacts →

Partial evidence

“Practical, cost-effective, and responsive - we bring decades of experience resolving and litigating disputes, coupled with an understanding of the challenges facing today’s…”

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-107 contacts →

Partial evidence

“We are trial lawyers engaged in litigation, arbitration, and dispute resolution, consistently delivering superior performance in courtrooms, boardrooms, and at the negotiating…”

Source: RevenueBase Database · checked Sep 19, 2026
9Strong evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-106 contacts →

Strong evidence

“Goodman Law Group | Chicago is a boutique business litigation firm focused on insurance coverage and complex contract disputes.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-105 contacts →

Indirect evidence

“The commercial trial lawyers of Greiman, Rome & Griesmeyer, P.C.”

Source: RevenueBase Database · checked Sep 19, 2026
11Partial evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-105 contacts →

Partial evidence

“Our firm represents individuals and start-up to medium-sized businesses in business formation, transactions, and dispute resolution.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-104 contacts →

Indirect evidence

“Longtime friends and colleagues, Larry Landsman, Rich Saldinger and Rob Carroll have joined together to form a new premier business litigation firm in Chicago.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-104 contacts →

Indirect evidence

“Jeremy S.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-104 contacts →

Indirect evidence

“Well-known and respected as mediators, arbitrators, and expert witnesses for many years, The Berliner Group, run by Robert Berliner, combines real-world business experience with…”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceChicago, United StatesHQ checked Sep 19, 20261-104 contacts →

Indirect evidence

“McBride Law Offices, P.C.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-103 contacts →

Indirect evidence

“Our attorneys quickly attack our clients’ issues including structuring deals, rendering advice, negotiating transactions, providing litigation, criminal defense, civil plaintiff…”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-103 contacts →

Indirect evidence

“After working together to serve the people of Illinois for more than eight years as prosecutors in the State’s Attorney’s Office in Cook County, Peter O’Mara and Sean O’Callaghan…”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 202611-502 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“The experience you need before, and after, you hit the wall In today’s competitive business climate, your company’s ability to thrive depends on the freshness of your ideas, the…”

Source: RevenueBase Database · checked Sep 19, 2026
22Partial evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-102 contacts →

Partial evidence

“Ali Law Practice is law firm founded by Tawfiq Ali in 2011, dedicated to helping business and executive solve legal disputes, in the courts and in arbitration.”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“LAWYERS FOR YOUR BUSINESS General Business Law practice dedicated to providing outstanding service to select clients in Chicago and Illinois and Nationwide.”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“Leon Zelechowski, Ltd, founded in 1988, is a Chicago law firm dedicated to providing clients with the highest quality, responsive legal representation.”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 202611-501 contacts →

Indirect evidence

“The Quinlan Law Firm, LLC is a commercial litigation boutique with offices in Chicago, Illinois and Phoenix, Arizona.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 55 contract dispute specialists based in Chicago, United States

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Contract dispute specialists based in Chicago, United States at a glance

As of Sep 19, 2026
52.0%Verified-email coverage
28.4Average contacts per company
1-10Median size (employees)
205.5%Largest-city concentration · New York
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
41
11-50
10
51-200
3
501-1,000
1

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 55 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 contract dispute specialists, 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 “contract dispute specialists”. 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 contract dispute specialists), 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 contract dispute specialists, 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, 813 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 19, 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.

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 contract dispute specialists, 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 contract dispute specialists are there based in Chicago, United States?

RevenueBase identified 55 contract dispute specialists 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?

Hinshaw & Culbertson LLP, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most contract dispute specialists?

New York leads with 113 headquartered companies, followed by Houston (83) and Los Angeles (70).

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 813 verified decision-maker contacts tracked across these 55 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 19, 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.