Company lists · Data refreshed September 2026

Top 25 Dispute resolution firms based in the United States

RevenueBase identified 1,128 dispute resolution firms headquartered in the United States as of September 2026 and tracks 8,453 professional contacts across them, including 3,340 with verified work emails. New York is the largest hub.

This list covers dispute resolution firms headquartered in the 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
1,128Companies
8,453Contacts tracked
3,340Verified emails
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The 25 largest dispute resolution firms based in the United States

Ranked by team size
Top 25 of 1,128 dispute resolution firms based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to dispute resolution 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceNew York, NY, United StatesHQ checked Sep 19, 2026501-1,0001,147 contacts →

Strong 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 19, 2026
2Strong evidenceIrvine, CA, United StatesHQ checked Sep 19, 2026501-1,000923 contacts →

Strong evidence

“JAMS is the premier provider of alternative dispute resolution (ADR) services, handling more than cases annually.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceMinneapolis, MN, United StatesHQ checked Sep 19, 2026501-1,000519 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 19, 2026
4Strong evidenceAddison, TX, United StatesHQ checked Sep 19, 2026501-1,000216 contacts →

Strong evidence

“HaloMD is the leading authority in Independent Dispute Resolution under the federal No Surprises Act and state balance-billing laws.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 19, 2026n/a216 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
6Strong evidenceSanta Ana, CA, United StatesHQ checked Sep 19, 202651-200166 contacts →

Strong 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 19, 2026
7Strong evidenceLos Angeles, CA, United StatesHQ checked Sep 19, 202651-200137 contacts →

Strong evidence

“Signature Resolution is setting a higher standard in alternative dispute resolution.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceWilmington, DE, United StatesHQ checked Sep 19, 202651-200130 contacts →

Indirect evidence

“Quavo is a leading technology partner and strategic advisor, helping financial institutions (FIs) build trust-driven customer relationships through faster, more transparent…”

Source: RevenueBase Database · checked Sep 19, 2026
9Strong evidenceAtlanta, GA, United StatesHQ checked Sep 19, 202651-200123 contacts →

Strong evidence

“Miles Mediation & Arbitration is an award-winning alternative dispute resolution (ADR) provider.”

Source: RevenueBase Database · checked Sep 19, 2026
10Strong evidenceNew York, NY, United StatesHQ checked Sep 19, 202651-200116 contacts →

Strong evidence

“NAM is a full-service provider of Alternative Dispute Resolution (ADR) services – supporting clients throughout the U.S.”

Source: RevenueBase Database · checked Sep 19, 2026
11Partial evidenceSan Diego, CA, United StatesHQ checked Sep 19, 202651-200106 contacts →

Partial evidence

“Since 1983, the National Conflict Resolution Center (NCRC) has been empowering people and transforming cultures.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceDallas, TX, United StatesHQ checked Sep 19, 202651-20097 contacts →

Indirect evidence

“Few things in life are more personal than family law issues, and they can easily become overheated.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceBoston, MA, United StatesHQ checked Sep 19, 202611-5086 contacts →

Indirect evidence

“MWI equips people and organizations to turn conflict into collaboration and challenges into opportunities for connection, innovation, and positive change.”

Source: RevenueBase Database · checked Sep 19, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5083 contacts →

Partial evidence

“Established in 1977, the International Institute of Conflict Prevention and Resolution (CPR) is an independent nonprofit organization that helps prevent and resolve legal conflict…”

Source: RevenueBase Database · checked Sep 19, 2026
15Partial evidenceChicago, IL, United StatesHQ checked Sep 19, 202611-5076 contacts →

Partial evidence

“The Chicago based Center for Conflict Resolution is one of the nation's premier not-for-profit providers of mediation services and hands-on mediation training.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceOrmond Beach, FL, United StatesHQ checked Sep 19, 202611-5073 contacts →

Indirect evidence

“Offering neutral services including mediation, arbitration and special master assignments to clients throughout Florida, Alabama and beyond.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidencePortland, OR, United StatesHQ checked Sep 19, 202651-20067 contacts →

Indirect evidence

“In this era of mediation and arbitration, experienced trial attorneys are becoming increasingly rare.”

Source: RevenueBase Database · checked Sep 19, 2026
18Strong evidenceChicago, IL, United StatesHQ checked Sep 19, 202611-5059 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidencePhoenix, United StatesHQ checked Sep 19, 202611-5056 contacts →

Indirect evidence

“At Sanders & Parks, we are dedicated to providing quality legal service in a friendly and professional atmosphere.”

Source: RevenueBase Database · checked Sep 19, 2026
20Strong evidenceSt. Louis Park State, United StatesHQ checked Sep 19, 202651-20054 contacts →

Strong evidence

“Forum delivers on the promise of alternative dispute resolution.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceMilwaukee, WI, United StatesHQ checked Sep 19, 202611-5053 contacts →

Indirect evidence

“Resolute provides mediation, arbitration, ADR training, and Consulting services to its clients throughout the United States, Canada, and Puerto Rico.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceMinneapolis, MN, United StatesHQ checked Sep 19, 202651-20044 contacts →

Indirect evidence

“Our mission at Lind, Jensen, Sullivan & Peterson, P.A.”

Source: RevenueBase Database · checked Sep 19, 2026
23Strong evidencePlano, TX, United StatesHQ checked Sep 19, 202611-5038 contacts →

Strong evidence

“Rooted in faith, transparency, and integrity, Ryan & Jacobs is a results-driven commercial debt collection agency offering remarkable and reliable financial dispute resolutions.”

Source: RevenueBase Database · checked Sep 19, 2026
24Strong evidenceHurst, TX, United StatesHQ checked Sep 19, 202611-5038 contacts →

Strong evidence

“DeMars & Associates, Ltd.(DMA) is a leading national alternative dispute resolution firm managed by the most reputable experts in the business.”

Source: RevenueBase Database · checked Sep 19, 2026
25Strong evidenceBaton Rouge, LA, United StatesHQ checked Sep 19, 202651-20037 contacts →

Strong evidence

“Perry Dampf Dispute Solutions offers alternative dispute resolution services.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 1,128 dispute resolution firms based in the United States

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Dispute resolution firms based in the United States at a glance

As of Sep 19, 2026
39.5%Verified-email coverage
7.5Average contacts per company
1-10Median size (employees)
3.7%Largest-city concentration · New York
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
960
11-50
124
51-200
32
201-500
1
501-1,000
5
1,001-5,000
2
5,001-10,000
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,128 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 dispute resolution 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 the United States whose own description of what they do matches “dispute resolution 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 dispute resolution 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 dispute resolution firms, and records with no verified work email. Companies headquartered outside United States 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, 3,340 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 dispute resolution 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 dispute resolution firms are there based in the United States?

RevenueBase identified 1,128 dispute resolution firms headquartered in the 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?

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

Which city has the most dispute resolution firms?

New York leads with 42 headquartered companies, followed by Los Angeles (37) and Atlanta (35).

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 3,340 verified decision-maker contacts tracked across these 1,128 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.