Company lists · Data refreshed September 2026
Top 25 Document verification services worldwide
RevenueBase identified 878 document verification services worldwide as of September 2026 and tracks 24,904 professional contacts across them, including 7,127 with verified work emails. The United States is the largest market and London the largest hub.
This list covers document verification services 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 document verification services 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 document verification services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,879 contacts → | ||||
Indirect evidence “Sterling was acquired by First Advantage on October 31st, 2024.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,369 contacts → | ||||
Partial 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 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,332 contacts → | ||||
Partial 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 19, 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 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 676 contacts → | ||||
Indirect evidence “Unico is a global identity network that forges trust between people & companies.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 667 contacts → | ||||
Indirect evidence “cFIRST is a digital global background screening service provider headquartered in Cincinnati, Ohio.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 519 contacts → | ||||
Partial 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 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 422 contacts → | ||||
Indirect evidence “Proof makes trust possible in a digital world.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 420 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 414 contacts → | ||||
Partial 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 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 408 contacts → | ||||
Indirect evidence “Sterling was acquired by First Advantage on October 31st, 2024.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 387 contacts → | ||||
Partial evidence “Trulioo is the world’s identity platform, trusted by leading companies for their verification and fraud prevention needs.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 339 contacts → | ||||
Partial evidence “CAF is a Brazil-based provider of end-to-end identity verification, proofing and authentication solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 302 contacts → | ||||
Indirect evidence “As our world becomes increasingly digitally connected, personal identity and security only become more important.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 233 contacts → | ||||
Indirect evidence “Daon, The Digital Identity Trust Company, delivers fraud-resistant, low-friction digital identity solutions that support onboarding and authentication at every trust point across…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 230 contacts → | ||||
Partial evidence “Regula is a global developer of identity verification solutions and forensic devices, trusted by over organizations across regulated industries worldwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 195 contacts → | ||||
Indirect evidence “At IISERVZ, we're not just providing a service; we're delivering a solution.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 180 contacts → | ||||
Indirect evidence “Parishram Resources Pvt Ltd is a leading Human Resource service provider with its headquarters in Gurgaon, India.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 152 contacts → | ||||
Indirect evidence “Our mission is to ensure that every interaction is authentic, verified, and secure-protecting individuals and organizations from fraud, impersonation, and digital deception.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 140 contacts → | ||||
Partial evidence “Encompass enables fast, accurate identity validation and verification of corporate clients, and a gold standard approach to KYC.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 138 contacts → | ||||
Partial evidence “Verify if your documents are real or fraudulent with AI.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 137 contacts → | ||||
Indirect evidence “Vault Workforce Screening was acquired by Sterling on January 2, 2024.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 129 contacts → | ||||
Partial evidence “VerifyMe offers digital identity and verification services to a wide range of industries and the retail market.” 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: document verification services. 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 document verification services.
- Partial evidence
- Its own public description names part of document verification services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name document verification services. 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 878 document verification services worldwide
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Document verification services 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 document verification services, 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 document verification services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “document verification services”. 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 document verification services), 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 document verification services, 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, 7,127 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.
Document verification services by location
6 lists · largest firstEvery Document verification services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Document verification services based in the United States198
- Document verification services based in India183
- Document verification services based in the United Kingdom58
- Document verification services based in Canada32
- Document verification services based in Brazil27
- Document verification services based in South Africa27
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 document verification services, 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 document verification services are there worldwide?
RevenueBase identified 878 document verification services 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?
Sterling, headquartered in Independence, tops this list with the largest team on record.
Which country has the most document verification services?
The United States leads with 198 companies, followed by India (183) and the United Kingdom (58). Every document verification services list by country and city is linked on this page.
Which city has the most document verification services?
London leads with 27 headquartered companies, followed by Bengaluru (17) and Bangalore (16).
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 7,127 verified decision-maker contacts tracked across these 878 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.