Company lists · Data refreshed September 2026
Top 25 Clinical trial law firms based in Chicago, United States
RevenueBase identified 77 clinical trial law firms headquartered in Chicago, United States as of September 2026 and tracks 1,345 professional contacts across them, including 653 with verified work emails. Across the United States, Houston is the largest hub for this category (95 companies); Chicago follows with 77.
This list covers clinical trial 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 27, 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.
The 25 largest clinical trial law firms based in Chicago, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 254 contacts → | ||||
Partial evidence “Swanson, Martin & Bell, LLP was founded in 1992 by a group of trial lawyers who left a large Chicago firm to better serve the needs of their clients.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 81 contacts → | ||||
Indirect evidence “The lawyers at our firm know that personal and quality legal representation mean everything to our clients and their families.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 78 contacts → | ||||
Indirect evidence “Proven results.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 74 contacts → | ||||
Partial evidence “Cooney & Conway is a nationally recognized, plaintiff-only law firm based in Chicago, Illinois, with over 60 years of experience representing victims of serious injury and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 61 contacts → | ||||
Partial evidence “Wallace Miller is a plaintiff-side civil litigation law firm handling complex cases nationwide, including personal injury, asbestos, mass torts, class action, and survivor…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 55 contacts → | ||||
Partial evidence “Levin & Perconti is a nationally renowned law firm committed to protecting and vindicating the rights of people who have been injured due to systemic flaws and corporations…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 43 contacts → | ||||
Indirect evidence “At Amin Wasserman Gurnani, we focus on the food and beverage, nutritional supplement, cosmetic, medical device and pharmaceutical industries.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 41 contacts → | ||||
Partial evidence “As a firm of trial attorneys, we understand the cost and risk associated with litigation.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 39 contacts → | ||||
Strong evidence “Power Rogers is a Chicago trial law firm representing individuals and families in complex personal injury and wrongful death cases, including medical malpractice, transportation…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 35 contacts → | ||||
Indirect evidence “RMMS consists of over 30 attorneys focused exclusively on life sciences patent and regulatory counseling, patent litigation under Hatch-Waxman and the BPCIA, as well as post-grant…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 31 contacts → | ||||
Indirect evidence “Welcome to Stinar Gould Grieco & Hensley: a prestigious, boutique national personal injury firm dedicated to advocating for victims of abuse and catastrophic injuries in…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 27 contacts → | ||||
Partial evidence “Dedication, passion and the courage to try lawsuits are the three qualities that distinguish Williams & John from other law firms.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 22 contacts → | ||||
Partial evidence “The mission of The Vrdolyak Law Group is to provide exceptional legal representation to those who have been injured or killed in motor vehicle, plane, train, fall-down…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 21 contacts → | ||||
Partial evidence “Smith LaCien LLP Trial Lawyers has a lengthy track record of achieving exceptional results for clients, with more than $2.5 billion in verdicts and settlements and some 100 cases…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 21 contacts → | ||||
Partial evidence “Cavanagh Sorich Law Group has long been regarded as one of the preeminent firms in the state for personal injury, medical malpractice and wrongful death.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 19 contacts → | ||||
Indirect evidence “The firm has obtained many multi-million dollar verdicts and settlements over the years.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 15 contacts → | ||||
Indirect evidence “Representing the Victims of Medical Malpractice and Catastrophic Accidents throughout Illinois.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 15 contacts → | ||||
Partial evidence “Moll Law Group represents people who were severely injured and the families who have lost a loved one from defective products, dangerous prescription drugs, faulty medical devices…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 13 contacts → | ||||
Indirect evidence “Parente & Norem, P.C.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 9 contacts → | ||||
Partial evidence “Our law firm focuses almost exclusively on health care regulatory compliance.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 8 contacts → | ||||
Partial evidence “The right law firm should take your case, personally.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 8 contacts → | ||||
Indirect evidence “The injury attorneys at Jeffrey M.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 8 contacts → | ||||
Strong evidence “Trauma Lawyers has been serving Chicago, and the Chicago-land area, since 1996, as a renowned personal injury and civil trial law firm handling serious personal injury and medical…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 7 contacts → | ||||
Indirect evidence “At Munday & Nathan, we have spent more than three decades standing beside injured individuals and families throughout Chicago.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 7 contacts → | ||||
Partial evidence “At Healy Scanlon Veugeler Gannon (f/k/a Healy Scanlon Law Firm) we take the safety of others as a serious concern.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: clinical trial law firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names clinical trial law firms.
- Partial evidence
- Its own public description names part of clinical trial law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name clinical trial law firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 77 clinical trial law firms based in Chicago, United States
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Clinical trial law firms based in Chicago, United States at a glance
As of Sep 27, 2026Companies by employee count
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 77 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 clinical trial law 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 “clinical trial law 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 clinical trial law 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 clinical trial 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 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, 653 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 27, 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.
Clinical trial law firms by metro in the United States
- Clinical trial law firms in Houston95
- Clinical trial law firms in New York75
- Clinical trial law firms in Atlanta68
- Clinical trial law firms in Miami58
- Clinical trial law firms in Dallas48
- Clinical trial law firms in Philadelphia48
- Clinical trial law firms in Los Angeles45
- Clinical trial law firms in San Diego41
- Clinical trial law firms in Washington39
- Clinical trial law firms in Boston38
- Clinical trial law firms in Tampa34
- Clinical trial law firms in San Francisco31
- Clinical trial law firms in Austin27
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 clinical trial law 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 clinical trial law firms are there based in Chicago, United States?
RevenueBase identified 77 clinical trial 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?
Swanson, Martin & Bell, LLP, headquartered in Chicago, tops this list with the largest team on record.
Which city in the United States has the most clinical trial law firms?
Houston leads the United States with 95 headquartered companies, followed by Chicago (77) and New York (75).
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 653 verified decision-maker contacts tracked across these 77 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 27, 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.
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