Company lists · Data refreshed September 2026

Top 16 User authentication platform developers based in London, United Kingdom

RevenueBase identified 34 company matches for user authentication platform developers associated with London, United Kingdom as of September 2026 and tracks 409 professional contacts across them, including 251 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for user authentication platform developers associated with London, United Kingdom, 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 29, 2026.

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 29, 2026 How this list was built
34Companies
409Contacts tracked
251Verified emails
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The 16 largest user authentication platform developers based in London, United Kingdom

Ranked by team size
Top 16 of 34 company matches for user authentication platform developers based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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 matchLondon, United KingdomHQ recorded Sep 29, 2026201-500190 contacts →

Exact match

“Intragen is a cyber security business focused on managed Identity solutions and services.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20036 contacts →

Exact match

“On December 31, 2025, Keyless was acquired by Ping Identity to help deliver stronger, privacy-preserving identity verification and authentication for the AI era.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5033 contacts →

Exact match

“Fraud.com ensures trust at every step of the customer's digital journey; this complete end-to-end protection delivers unified identity, authentication and fraud detection and…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5016 contacts →

Exact match

“Regulatory requirements are so often an essential part of onboarding.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5015 contacts →

Exact match

“In Today's digital world, knowing you're engaging with a real person is a challenge filled with risk.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20010 contacts →

Exact match

“Built on over 30 years of Army experience, safety is at the core of what we do.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5010 contacts →

Exact match

“Self is a research and product company building an identity layer for the internet.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-509 contacts →

Exact match

“Founded in 2007, My1Login is a leader in Identity Management, protecting enterprises against cybersecurity threats through its Identity & Access Management (IAM) solution.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-506 contacts →

Exact match

“At Xertilox, we're redefining the future of digital identity.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-105 contacts →

Exact match

“Our technology has been used for years by major institutions throughout the globe and is designed to get you started immediately, increasing the security of your business without…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-2005 contacts →

Exact match

“Authgear enables organizations to provide users with secure access to any applications.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-104 contacts →

Exact match

“ID Crypt Global (IDC) is a digital identity and security specialist, following a Self-Sovereign Identity (SSI) model for its services to both businesses and individuals.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-104 contacts →

Exact match

“Keeping you cyber safe, our easy to use platform is easy to use.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-504 contacts →

Exact match

“WINNER - Public Sector Cloud Project of 2016, Cloud Hosting Awards.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-502 contacts →

Exact match

“A leading digital identity solution provider, offering comprehensive solutions that retrieve, manage, process, and match biometric data and images for identity verification and…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-102 contacts →

Exact match

“Everlink is creating a new standard for secure, seamless authentication.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 16 of 34 user authentication platform developers based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 251 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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User authentication platform developers based in London, United Kingdom at a glance

As of Sep 29, 2026
61.4%Verified-email coverage
12.0Average contacts per company
11-50Median size (employees)
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
14
11-50
16
51-200
3
201-500
1

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 34 companies.

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.
What qualifies
Company records associated with London, United Kingdom whose business descriptions match “user authentication platform developers” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 251 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 29, 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.

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 “user authentication platform developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many user authentication platform developers are there based in London, United Kingdom?

RevenueBase identified 34 company matches for user authentication platform developers associated with London, United Kingdom 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?

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

Which city in the United Kingdom has the most user authentication platform developers?

London leads the United Kingdom with 34 company records, followed by Manchester (4) and Bristol (2).

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 251 professional contacts with verified work emails tracked across these 34 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 29, 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.