Company lists · Data refreshed September 2026
Top 25 Defamation law firms worldwide
RevenueBase identified 449 defamation law firms worldwide as of September 2026 and tracks 4,748 professional contacts across them, including 2,727 with verified work emails and 2,123 with mobile numbers. The United States is the largest market and New York the largest hub.
This list covers defamation law firms worldwide, 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 1, 2026. Country and city lists for defamation law firms follow the table.
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 defamation law firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 569 contacts → | ||||
Partial evidence “As a national law firm defending corporations, non-profits, associations and their officers & directors in every manner of litigation, O'Hagan Meyer provides individualized…” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 2 | 541 contacts → | ||||
Indirect evidence “A firm of internationally recognized trial lawyers, crisis managers, and strategic advisors known for our creative, aggressive, and efficient pursuit of success for our clients.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 3 | 177 contacts → | ||||
Indirect evidence “Selendy Gay's practice is dedicated to excellence in commercial litigation, investigations, appellate advocacy, and arbitration.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 4 | 131 contacts → | ||||
Indirect evidence “Successful Trial Lawyers, Skillful Motion Practice, Sophisticated Advice” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 5 | 109 contacts → | ||||
Indirect evidence “Founded in Texas in 1994 by attorneys with a passion for trying cases, Hartline Barger is known nationwide for its litigation prowess in high-profile cases.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 6 | 79 contacts → | ||||
Indirect evidence “Since its inception in 1954, McNamara, Ambacher, Wheeler, Hirsig & Gray LLP has become one of the most respected defense litigation practices in Northern California.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 7 | 76 contacts → | ||||
Indirect evidence “We are Kalbaugh, Pfund & Messersmith, more than 30 attorneys in four strategically located mid-Atlantic offices who collectively embody the energy and expertise that is the…” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 8 | 75 contacts → | ||||
Indirect evidence “Beck Redden is a firm of courtroom lawyers.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 9 | 67 contacts → | ||||
Indirect evidence “Hill Farrer attorneys have successfully handled thousands of transactions and won thousands of cases.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 10 | 56 contacts → | ||||
Indirect evidence “SMITH is a handcrafted, nationally renowned legal powerhouse headquartered in Atlanta.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 11 | 48 contacts → | ||||
Partial evidence “Smith Sovik Kendrick & Sugnet, P.C, founded in 1946, is an aggressive, innovative litigation boutique law firm.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 12 | 47 contacts → | ||||
Indirect evidence “Every firm has a prevailing ethos that drives its relationships and determines its success.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 13 | 41 contacts → | ||||
Partial evidence “With offices in California, New Jersey, Florida, Virginia and a law practice that spans the country, Dhillon Law Group’s business and constitutional law practice spans business…” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 14 | 40 contacts → | ||||
Partial evidence “We are an international law firm with special expertise in bringing discrimination claims in the US and UK.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 15 | 40 contacts → | ||||
Indirect evidence “O+Z is a dynamic litigation boutique founded by attorneys with extensive experience protecting content and brands.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 16 | 40 contacts → | ||||
Partial evidence “Carter-Ruck is one of the UK's best-known law firms, with a global reputation.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 17 | 40 contacts → | ||||
Partial evidence “Donovan Hatem LLP is a multi-practice law firm comprised of more than 35 litigation and general business attorneys serving a diverse clientele of public and private companies…” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 18 | 37 contacts → | ||||
Partial evidence “Houser LLP, is a commercial and business litigation law firm serving Fortune 500 companies as well as small businesses.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 19 | 36 contacts → | ||||
Indirect evidence “Chock Barhoum LLP is one of the preeminent litigation firms in the Northwest.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 20 | 36 contacts → | ||||
Indirect evidence “One of Toronto's, original civil litigation boutiques, Teplitsky LLP has earned a reputation for aggressive, creative advocacy.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 21 | 36 contacts → | ||||
Indirect evidence “Dummit Fradin emphasizes the representation of individuals in the resolution of criminal and civil disputes through litigation and negotiation.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 22 | 36 contacts → | ||||
Indirect evidence “Kanzlei für Versicherungsrecht und Haftpflichtrecht” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 23 | 35 contacts → | ||||
Indirect evidence “In 2014, all of the lawyers at Hollstein Keating Cattell Johnson & Goldstein, P.C.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 24 | 34 contacts → | ||||
Partial evidence “Bailey & Wyant, PLLC is a full-service defense law firm with offices in Charleston and Wheeling, West Virginia.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 25 | 30 contacts → | ||||
Indirect evidence “Trusted by general counsel of leading global companies, our highly skilled lawyers focus solely on trials and litigation.” Source: RevenueBase Database · checked Sep 1, 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: defamation 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 defamation law firms.
- Partial evidence
- Its own public description names part of defamation law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name defamation 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 449 defamation law firms worldwide
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Defamation law firms worldwide at a glance
As of Sep 1, 2026Companies by employee count
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 defamation 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.
- Coverage
- 4 countries, largest first: the United States, Canada, the United Kingdom, Germany. Country and city lists for defamation law firms are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “defamation 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 defamation 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 defamation law firms, and records with no verified work email.
- 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, 2,727 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 1, 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.
Defamation law firms by location
5 lists · largest firstEvery Defamation law firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Defamation law firms based in the United States366
- Defamation law firms based in Canada29
- Defamation law firms based in the United Kingdom29
- Defamation law firms based in Germany25
Cities
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 defamation 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 defamation law firms are there worldwide?
RevenueBase identified 449 defamation law firms worldwide 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?
O'hagan Meyer, headquartered in Norfolk, tops this list with the largest team on record.
Which country has the most defamation law firms?
The United States leads with 366 companies, followed by Canada (29) and the United Kingdom (29). Every defamation law firms list by country and city is linked on this page.
Which city has the most defamation law firms?
New York leads with 26 headquartered companies, followed by Los Angeles (20) and London (16).
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 2,727 verified decision-maker contacts tracked across these 449 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 1, 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.