Company lists · Data refreshed September 2026
Top 25 Dunning management companies worldwide
RevenueBase identified 1,887 dunning management companies worldwide as of September 2026 and tracks 34,320 professional contacts across them, including 6,662 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers dunning management companies 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 19, 2026. Country and city lists for dunning management companies 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 dunning management companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,677 contacts → | ||||
Partial evidence “Transworld Systems Inc.(TSI) stands as the leading tech-driven provider in Accounts Receivable Management (ARM), Healthcare Revenue Cycle Management (RCM), Customer Experience…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,739 contacts → | ||||
Partial evidence “Radius Global Solutions is a leading provider of accounts receivable, customer relations and revenue cycle management solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 768 contacts → | ||||
Indirect evidence “We are a trusted leader in providing integrated solutions, leveraging cutting-edge technology to deliver exceptional customer experiences.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 639 contacts → | ||||
Indirect evidence “Fundada em 2009, a Personalcob nasceu com a missão de ajudar empresas a recuperarem seus créditos de forma amigável e eficiente.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 629 contacts → | ||||
Indirect evidence “Client Services, Inc.(CSI) was founded in 1987 in the heartland of America.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 472 contacts → | ||||
Partial evidence “ConServe is a leading provider of accounts receivable management and collection services specializing in customized solutions for commercial lenders, financial institutions…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 421 contacts → | ||||
Indirect evidence “AllianceOne offers the financial strength, imagination, technological sophistication, and a work ethic that is the envy of our industry.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 381 contacts → | ||||
Indirect evidence “PFS Group provides accounts receivable enhancement programs that are custom-designed for each client's individual needs.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 360 contacts → | ||||
Indirect evidence “Founded in 1986, Williams & Fudge, Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 352 contacts → | ||||
Partial evidence “IC System is an Accounts Receivable Management provider and one of the largest collection companies in North America.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 330 contacts → | ||||
Indirect evidence “Nuestra Misión Brindamos soluciones y servicios de recuperación y normalización de cuentas por cobrar de personas y empresas en diversas industrias.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 307 contacts → | ||||
Indirect evidence “Alltran is more than just a new name.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 303 contacts → | ||||
Indirect evidence “Total Credit Recovery (TCR) is the largest collection agency that is, and always has been, 100% Canadian-owned.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 290 contacts → | ||||
Partial evidence “Harris & Harris is an acknowledged leader in the field of accounts receivable management.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 283 contacts → | ||||
Partial evidence “NuDebt is a leading debt collection, payment solutions, and credit management company in South Africa.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 279 contacts → | ||||
Partial evidence “Credit Control, LLC is a nationally licensed provider of customized, performance-driven receivables management services founded in 1989.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 278 contacts → | ||||
Partial evidence “Caine & Weiner is a solution-based accounts receivable management enterprise, founded in 1930, that specializes in providing 1st and 3rd party collection solutions to commercial…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 265 contacts → | ||||
Partial evidence “Premiere was a leading national ARM firm providing proven receivables management solutions to clients in the healthcare, financial services, government, and higher education…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 262 contacts → | ||||
Partial evidence “Altus is the trusted leader in commercial receivables management and business-to-business collections, helping organizations improve cash flow, optimize their credit-to-cash…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 256 contacts → | ||||
Partial evidence “Capital Management Services, LP is a Nationally recognized industry leader in Accounts Receivable Management services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 255 contacts → | ||||
Indirect evidence “As part of the Cadex global Order-to-Cash (O2C) solutions, D&S Global Solutions (D&S) has been a trusted name in global Third-Party and First-Party collections since 1997.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 243 contacts → | ||||
Partial evidence “Unifin Inc, established in 2011, is a veteran-owned digital debt collection and accounts receivable management agency.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 233 contacts → | ||||
Partial evidence “Founded in 1933, Professional specializes in accounts receivable management services offering two dedicated service lines: Professional Credit collections, and Ensource, scalable…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 226 contacts → | ||||
Partial evidence “WHAT WE DO: For over 45 years, Rausch Sturm LLP has been nationally recognized as a full-service account receivables management law firm.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 223 contacts → | ||||
Indirect evidence “Frost-Arnett, now proudly part of the Harris & Harris family of companies, brings together more than 130 years of trusted healthcare revenue cycle expertise with the expanded…” Source: RevenueBase Database · checked Sep 19, 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: dunning management companies. 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 dunning management companies.
- Partial evidence
- Its own public description names part of dunning management companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name dunning management companies. 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 1,887 dunning management companies worldwide
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Dunning management companies worldwide at a glance
As of Sep 19, 2026Companies by employee count
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 dunning management companies, 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 dunning management companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “dunning management companies”. 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 dunning management companies), 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 dunning management companies, 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, 6,662 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.
Dunning management companies by location
9 lists · largest firstEvery Dunning management companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Dunning management companies based in the United States620
- Dunning management companies based in Brazil119
- Dunning management companies based in Germany95
- Dunning management companies based in the Netherlands76
- Dunning management companies based in the United Kingdom74
- Dunning management companies based in France66
- Dunning management companies based in Australia36
- Dunning management companies based in Canada30
- Dunning management companies based in South Africa28
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 dunning management companies, 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 dunning management companies are there worldwide?
RevenueBase identified 1,887 dunning management companies 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?
TSI, headquartered in Federal Way, tops this list with the largest team on record.
Which country has the most dunning management companies?
The United States leads with 620 companies, followed by Brazil (119) and Germany (95). Every dunning management companies list by country and city is linked on this page.
Which city has the most dunning management companies?
Sao Paulo leads with 24 headquartered companies, followed by London (22) and Houston (21).
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 6,662 verified decision-maker contacts tracked across these 1,887 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.