Company lists · Data refreshed September 2026

Top 25 Mediation and arbitration firms worldwide

Name: Mediation and arbitration firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 4,488 companies tracked

RevenueBase identified 4,488 mediation and arbitration firms worldwide as of September 2026 and tracks 28,285 professional contacts across them, including 5,850 with verified work emails. The United States is the largest market and London the largest hub.

This list covers mediation and arbitration 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 20, 2026. Country and city lists for mediation and arbitration 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

4,488Companies

28,285Contacts tracked

5,850Verified emails

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The 25 largest mediation and arbitration firms worldwide

Ranked by team size

Top 25 of 4,488 mediation and arbitration firms worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to mediation and arbitration 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	American Arbitration Association	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 2026	501-1,000	1,147 contacts →
	Partial evidence “The American Arbitration Association® with its long history and experience in the field of alternative dispute resolution, provides services to individuals and organizations who…” Source: RevenueBase Database · checked Sep 20, 2026
2	JAMS	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	501-1,000	923 contacts →
	Indirect evidence “JAMS is the premier provider of alternative dispute resolution (ADR) services, handling more than cases annually.” Source: RevenueBase Database · checked Sep 20, 2026
3	Chartered Institute Of Arbitrators Ciarb	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	n/a	838 contacts →
	Indirect evidence “An independent, charitable membership organisation committed to supporting the effective resolution of disputes.” Source: RevenueBase Database · checked Sep 20, 2026
4	Robins Kaplan LLP	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 20, 2026	501-1,000	519 contacts →
	Indirect evidence “Robins Kaplan LLP is among the nation’s premier trial law firms, with more than 200 attorneys in Bismarck, N.D; Boston; Los Angeles; Minneapolis; New York; Silicon Valley; and…” Source: RevenueBase Database · checked Sep 20, 2026
5	Singapore International Arbitration Centre	Indirect evidence	SingaporeHQ checked Sep 20, 2026	n/a	444 contacts →
	Indirect evidence “SIAC is an internationally recognised global arbitral institution providing neutral, competitive and efficient case management services to parties from all over the world.” Source: RevenueBase Database · checked Sep 20, 2026
6	London Court Of International Arbitration Lcia	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	n/a	444 contacts →
	Indirect evidence “The LCIA is one of the world’s leading international institutions for commercial dispute resolution.” Source: RevenueBase Database · checked Sep 20, 2026
7	Iamc Hyderabad	Strong evidence	Hyderabad, IndiaHQ checked Sep 20, 2026	201-500	301 contacts →
	Strong evidence “The International Arbitration and Mediation Centre (IAMC) in Hyderabad is a premier institution dedicated to resolving domestic and international disputes through arbitration and…” Source: RevenueBase Database · checked Sep 20, 2026
8	Centre For Effective Dispute Resolution Cedr	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	245 contacts →
	Indirect evidence “CEDR helps individuals, teams and organisations achieve better outcomes from (often costly) conflicts that hinder human interactions, collaboration and collective performance.” Source: RevenueBase Database · checked Sep 20, 2026
9	ADR Services, INC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 20, 2026	n/a	216 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
10	Leite, Tosto E Barros Advogados	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 20, 2026	201-500	216 contacts →
	Indirect evidence “Somos um escritório full service que abraçou o propósito e o compromisso de prestar um atendimento personalizado e em linha com os mais altos padrões de qualidade e excelência.” Source: RevenueBase Database · checked Sep 20, 2026
11	The Nigerian Institute Of Chartered Arbitrators Nicarb	Strong evidence	Lagos, NigeriaHQ checked Sep 20, 2026	n/a	211 contacts →
	Strong evidence “Training Institute & Consultation Services - Arbitration - Alternative Dispute Resolution - Mediation The Nigeria Institute of Chartered Arbitrators (NICArb) is the premier…” Source: RevenueBase Database · checked Sep 20, 2026
12	DPR	Strong evidence	United StatesHQ checked Sep 20, 2026	n/a	203 contacts →
	Strong evidence “provide mediation and arbitration services” Source: RevenueBase Database · checked Sep 20, 2026
13	Saudi Center For Commercial Arbitration Scca	Strong evidence	Riyadh, Saudi ArabiaHQ checked Sep 20, 2026	n/a	199 contacts →
	Strong evidence “An independent, non-profit provider of professional ADR Services (Arbitration and Mediation case management and other services).” Source: RevenueBase Database · checked Sep 20, 2026
14	Three Crowns LLP	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	179 contacts →
	Partial evidence “Three Crowns LLP, a law firm founded by practice leaders with decades of experience across many different international firms, is regarded as "one of the premier arbitration…” Source: RevenueBase Database · checked Sep 20, 2026
15	Judicate West	Indirect evidence	Santa Ana, CA, United StatesHQ checked Sep 20, 2026	51-200	166 contacts →
	Indirect evidence “For more than 30 years, Judicate West has been one of California’s leading providers of private dispute resolution services with a distinguished roster of proven neutrals…” Source: RevenueBase Database · checked Sep 20, 2026
16	Sport Resolutions	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	140 contacts →
	Strong evidence “Sport Resolutions is an independent, not-for-profit, dispute resolution service for sport operating globally, offering arbitration, mediation, tribunal and expert opinion.” Source: RevenueBase Database · checked Sep 20, 2026
17	Signature Resolution	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 20, 2026	51-200	137 contacts →
	Indirect evidence “Signature Resolution is setting a higher standard in alternative dispute resolution.” Source: RevenueBase Database · checked Sep 20, 2026
18	Presolv360	Indirect evidence	Mumbai, IndiaHQ checked Sep 20, 2026	51-200	132 contacts →
	Indirect evidence “Presolv360 is an online dispute resolution (ODR) platform that harnesses the power of technology to enable participation of disputing parties from remote locations and diverse…” Source: RevenueBase Database · checked Sep 20, 2026
19	HKIAC	Partial evidence	Hong KongHQ checked Sep 20, 2026	11-50	132 contacts →
	Partial evidence “The Hong Kong International Arbitration Centre (HKIAC) is one of the world’s leading dispute resolution organisations, specialising in arbitration and other forms of alternative…” Source: RevenueBase Database · checked Sep 20, 2026
20	Asian International Arbitration Centre	Partial evidence	Kuala Lumpur, MalaysiaHQ checked Sep 20, 2026	11-50	130 contacts →
	Partial evidence “Established under the agreement between the Government of Malaysia and Asian–African Legal Consultative Organization (AALCO) in 1978, the Asian International Arbitration Centre…” Source: RevenueBase Database · checked Sep 20, 2026
21	Miles Mediation & Arbitration	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 20, 2026	51-200	123 contacts →
	Strong evidence “Miles Mediation & Arbitration is an award-winning alternative dispute resolution (ADR) provider.” Source: RevenueBase Database · checked Sep 20, 2026
22	Cam-Ccbc	Strong evidence	São Paulo, BrazilHQ checked Sep 20, 2026	51-200	118 contacts →
	Strong evidence “The Center for Arbitration and Mediation of the Chamber of Commerce Brazil-Canada (CAM-CCBC) is a pioneer in the administration of Adequate/Appropriate Dispute Resolutions (ADRs).” Source: RevenueBase Database · checked Sep 20, 2026
23	NAM National Arbitration And Mediation	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	51-200	116 contacts →
	Indirect evidence “NAM is a full-service provider of Alternative Dispute Resolution (ADR) services – supporting clients throughout the U.S.” Source: RevenueBase Database · checked Sep 20, 2026
24	Exxata	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 20, 2026	51-200	115 contacts →
	Indirect evidence “Apoiamos nossos clientes na prevenção e resolução de problemas complexos e solução de conflitos.” Source: RevenueBase Database · checked Sep 20, 2026
25	Camarb	Indirect evidence	São Paulo \| Belo Horizonte \| Rio De Janeiro \| Recife \| Brasília \| Salvador \| Goiânia \| Itajaí \| Lisboa \|, BrazilHQ checked Sep 20, 2026	11-50	115 contacts →
	Indirect evidence “A CAMARB – Câmara de Arbitragem Empresarial – Brasil é uma associação com fins não-econômicos, que oferece ao mercado empresarial serviços especializados e de alta qualidade para…” Source: RevenueBase Database · checked Sep 20, 2026

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: mediation and arbitration 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 mediation and arbitration firms.
Partial evidence: Its own public description names part of mediation and arbitration firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name mediation and arbitration 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 4,488 mediation and arbitration firms worldwide

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Mediation and arbitration firms worldwide at a glance

As of Sep 20, 2026

20.7%Verified-email coverage

6.3Average contacts per company

1-10Median size (employees)

2.7%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

3,564

11-50

707

51-200

153

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 mediation and arbitration 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: Every country. Country and city lists for mediation and arbitration firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “mediation and arbitration 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 mediation and arbitration 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 mediation and arbitration 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, 5,850 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 20, 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.

Mediation and arbitration firms by location

17 lists · largest first

Every Mediation and arbitration firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 mediation and arbitration 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 mediation and arbitration firms are there worldwide?

RevenueBase identified 4,488 mediation and arbitration 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?

American Arbitration Association, headquartered in New York, tops this list with the largest team on record.

Which country has the most mediation and arbitration firms?

The United States leads with 1,122 companies, followed by the United Kingdom (273) and the Netherlands (265). Every mediation and arbitration firms list by country and city is linked on this page.

Which city has the most mediation and arbitration firms?

London leads with 120 headquartered companies, followed by Sao Paulo (78) and Toronto (59).

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 5,850 verified decision-maker contacts tracked across these 4,488 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 20, 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.