Company lists · Data refreshed September 2026

Top 25 Know your customer service providers worldwide

RevenueBase identified 982 company matches for 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 company matches for know your customer service providers worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. 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 SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built
982Companies
37,140Contacts tracked
13,652Verified emails
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The 25 largest know your customer service providers worldwide

Ranked by team size
Top 25 of 982 company matches for know your customer service providers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchGurugram, IndiaHQ recorded Sep 20, 2026501-1,0001,369 contacts →

Exact match

“AuthBridge is India’s largest Authentication company, delivering cutting-edge technology and alternate data analysis for Identity Management, Onboarding & Verification, and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchDubai, United Arab EmiratesHQ recorded Sep 20, 2026501-1,0001,332 contacts →

Exact match

“DataFlow Group is a pioneering global provider of specialized Primary Source Verification (PSV) solutions, and background screening and immigration compliance services that assist…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchChester, TürkiyeHQ recorded Sep 20, 20261,001-5,0001,212 contacts →

Exact match

“GBG is the leading expert in global identity and location tech, enabling safe and rewarding digital lives for genuine people, everywhere.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchLimassol, CyprusHQ recorded Sep 20, 2026501-1,000933 contacts →

Exact match

“Sumsub is the first AI-powered trust infrastructure for compliance operations at scale.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchSan Diego, CA, United StatesHQ recorded Sep 20, 2026501-1,000913 contacts →

Exact match

“Mitek protects what’s real across digital interactions in a world of evolving threats.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchMumbai, IndiaHQ recorded Sep 20, 2026501-1,000847 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchItasca, IL, United StatesHQ recorded Sep 20, 20261,001-5,000772 contacts →

Exact match

“Accertify enables commerce by doing one thing extraordinarily well: pinpointing fraud.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchSao Paulo, BrazilHQ recorded Sep 20, 2026501-1,000676 contacts →

Exact match

“Unico is a global identity network that forges trust between people & companies.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchCincinnati, OH, United StatesHQ recorded Sep 20, 2026201-500667 contacts →

Exact match

“cFIRST is a digital global background screening service provider headquartered in Cincinnati, Ohio.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 2026501-1,000617 contacts →

Exact match

“AI-powered identity platform.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchSunnyvale, CA, United StatesHQ recorded Sep 20, 2026201-500617 contacts →

Exact match

“Jumio helps organizations to know and trust their customers online.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchMarina Del Rey, CA, United StatesHQ recorded Sep 20, 2026501-1,000575 contacts →

Exact match

“Telesign, a part of the Proximus Group, provides Continuous Trust™ to leading global enterprises by connecting, protecting, and defending their digital identities.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchVancouver, BC, CanadaHQ recorded Sep 20, 2026201-500569 contacts →

Exact match

“Founded in 2011, GeoComply provides fraud prevention and cybersecurity solutions that detect location fraud and help verify a user's true digital identity.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 2026501-1,000541 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchNY, United StatesHQ recorded Sep 20, 2026201-500519 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchIncline Village, NV, United StatesHQ recorded Sep 20, 2026501-1,000497 contacts →

Exact match

“Socure is the leading platform for digital identity verification, compliance and fraud prevention solutions, trusted by the largest enterprises and government agencies to build…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchBangalore, IndiaHQ recorded Sep 20, 2026501-1,000477 contacts →

Exact match

“Empowering Confident Hiring Decisions for 15+ Years Verifacts is India’s trusted background verification partner-delivering accurate, customizable checks across employees…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchBelo Horizonte, BrazilHQ recorded Sep 20, 2026201-500472 contacts →

Exact match

“Ganhe efetividade no combate à fraudes com as soluções digitais e humanas da Who.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchKennesaw, GA, United StatesHQ recorded Sep 20, 20261,001-5,000427 contacts →

Exact match

“We connect businesses to verifiable people data so they can reduce risk, move faster, and make confident decisions with clarity and context.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-500426 contacts →

Exact match

“Yoti helps businesses and people build trust with privacy-focused identity and age verification solutions.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchBoston, MA, United StatesHQ recorded Sep 20, 2026201-500422 contacts →

Exact match

“Proof makes trust possible in a digital world.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchPune, IndiaHQ recorded Sep 20, 20261,001-5,000420 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchMunich, GermanyHQ recorded Sep 20, 2026501-1,000415 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchNew York, NY, United StatesHQ recorded Sep 20, 2026201-500414 contacts →

Exact match

“Prove modernizes how digital trust is established and maintained throughout the digital consumer journey, providing unparalleled accuracy in identity verification and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchToronto, ON, CanadaHQ recorded Sep 20, 20261,001-5,000408 contacts →

Exact match

“Sterling was acquired by First Advantage on October 31st, 2024.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 982 know your customer service providers worldwide

See the full list, filter by size, metro and specialty, and access 13,652 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Know your customer service providers worldwide at a glance

As of Sep 20, 2026
36.8%Verified-email coverage
37.8Average contacts per company
11-50Median size (employees)
5.0%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
349
11-50
400
51-200
151
201-500
49
501-1,000
21
1,001-5,000
11

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, 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
Company records worldwide whose business descriptions match “know your customer service providers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 13,652 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Know your customer service providers by location

5 lists · largest first

Every 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

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “know your customer service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many know your customer service providers are there worldwide?

RevenueBase identified 982 company matches for know your customer service providers worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Authbridge tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

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 company records, 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 limited free results with 500 credits to start. Upgrading provides access to the 13,652 professional contacts with verified work emails tracked across these 982 companies; direct dials are available where recorded.

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 SmartSearch, 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.