Company lists · Data refreshed September 2026
Top 25 Know your customer service providers worldwide
RevenueBase identified 982 know your customer service providers worldwide as of September 2026 and tracks 37,140 professional contacts across them, including 13,652 with verified work emails. The United States is the largest market and London the largest hub.
This list covers know your customer service providers 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 know your customer service providers 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 know your customer service providers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,369 contacts → | ||||
Indirect evidence “AuthBridge is India’s largest Authentication company, delivering cutting-edge technology and alternate data analysis for Identity Management, Onboarding & Verification, and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,332 contacts → | ||||
Indirect evidence “DataFlow Group is a pioneering global provider of specialized Primary Source Verification (PSV) solutions, and background screening and immigration compliance services that assist…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,212 contacts → | ||||
Indirect evidence “GBG is the leading expert in global identity and location tech, enabling safe and rewarding digital lives for genuine people, everywhere.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 933 contacts → | ||||
Indirect evidence “Sumsub is the first AI-powered trust infrastructure for compliance operations at scale.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 913 contacts → | ||||
Indirect evidence “Mitek protects what’s real across digital interactions in a world of evolving threats.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 847 contacts → | ||||
Indirect evidence “IDfy is building the foundational layer of trust for the modern world, providing the essential infrastructure that global businesses, from digital banks to e-commerce giants, rely…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 772 contacts → | ||||
Indirect evidence “Accertify enables commerce by doing one thing extraordinarily well: pinpointing fraud.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 676 contacts → | ||||
Indirect evidence “Unico is a global identity network that forges trust between people & companies.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 667 contacts → | ||||
Indirect evidence “cFIRST is a digital global background screening service provider headquartered in Cincinnati, Ohio.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 617 contacts → | ||||
Indirect evidence “AI-powered identity platform.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 617 contacts → | ||||
Strong evidence “Jumio helps organizations to know and trust their customers online.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 575 contacts → | ||||
Indirect evidence “Telesign, a part of the Proximus Group, provides Continuous Trust™ to leading global enterprises by connecting, protecting, and defending their digital identities.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 569 contacts → | ||||
Indirect evidence “Founded in 2011, GeoComply provides fraud prevention and cybersecurity solutions that detect location fraud and help verify a user's true digital identity.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 541 contacts → | ||||
Indirect evidence “Persona helps businesses manage KYC/AML/KYB programs, fight fraud, and build trust by automating any identity-related use case with our flexible identity infrastructure.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 519 contacts → | ||||
Indirect evidence “Veriff is the preferred identity verification partner for the world’s biggest and best digital companies, including pioneers in fintech, crypto, gaming and the mobility sectors.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 497 contacts → | ||||
Indirect evidence “Socure is the leading platform for digital identity verification, compliance and fraud prevention solutions, trusted by the largest enterprises and government agencies to build…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 477 contacts → | ||||
Partial evidence “Empowering Confident Hiring Decisions for 15+ Years Verifacts is India’s trusted background verification partner-delivering accurate, customizable checks across employees…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 472 contacts → | ||||
Indirect evidence “Ganhe efetividade no combate à fraudes com as soluções digitais e humanas da Who.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 427 contacts → | ||||
Indirect evidence “We connect businesses to verifiable people data so they can reduce risk, move faster, and make confident decisions with clarity and context.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 426 contacts → | ||||
Indirect evidence “Yoti helps businesses and people build trust with privacy-focused identity and age verification solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 422 contacts → | ||||
Indirect evidence “Proof makes trust possible in a digital world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 420 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 415 contacts → | ||||
Indirect evidence “IDnow is Europe’s leader in digital identity and fraud prevention with a mission to transform trust into the most powerful asset in the digital world, empowering enterprises with…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 414 contacts → | ||||
Indirect evidence “Prove modernizes how digital trust is established and maintained throughout the digital consumer journey, providing unparalleled accuracy in identity verification and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 408 contacts → | ||||
Indirect evidence “Sterling was acquired by First Advantage on October 31st, 2024.” Source: RevenueBase Database · checked Sep 20, 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: know your customer service providers. 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 know your customer service providers.
- Partial evidence
- Its own public description names part of know your customer service providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name know your customer service providers. 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 982 know your customer service providers worldwide
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Know your customer service providers worldwide at a glance
As of Sep 20, 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 know your customer service providers, 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 know your customer service providers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “know your customer service providers”. 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 know your customer service providers), 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 know your customer service providers, 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, 13,652 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.
Know your customer service providers by location
5 lists · largest firstEvery Know your customer service providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Know your customer service providers based in the United States241
- Know your customer service providers based in India146
- Know your customer service providers based in the United Kingdom85
- Know your customer service providers based in Australia32
- Know your customer service providers based in Canada28
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 know your customer service providers, 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 know your customer service providers are there worldwide?
RevenueBase identified 982 know your customer service providers 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?
Authbridge, headquartered in Gurugram, tops this list with the largest team on record.
Which country has the most know your customer service providers?
The United States leads with 241 companies, followed by India (146) and the United Kingdom (85). Every know your customer service providers list by country and city is linked on this page.
Which city has the most know your customer service providers?
London leads with 49 headquartered companies, followed by New York (17) and Noida (15).
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 13,652 verified decision-maker contacts tracked across these 982 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.