Company lists · Data refreshed October 2026

Top 25 Biometric authentication software companies based in the United Kingdom

Name: Biometric authentication software companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 82 companies tracked

RevenueBase identified 82 biometric authentication software companies headquartered in the United Kingdom as of October 2026 and tracks 1,594 professional contacts across them, including 752 with verified work emails. London is the largest hub.

This list covers biometric authentication software companies headquartered in the United Kingdom, 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 October 1, 2026.

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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Oct 1, 2026 86% judged on-target in blind review

82Companies

1,594Contacts tracked

752Verified emails

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The 25 largest biometric authentication software companies based in the United Kingdom

Ranked by team size

Top 25 of 82 biometric authentication software companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Oct 1, 2026. RevenueBase Smart Search rates how each company's information relates to biometric authentication software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Callsign	Indirect evidence	London, United KingdomHQ checked Oct 1, 2026	51-200	253 contacts →
	Indirect evidence “Callsign is pioneering digital trust through proprietary technology that uniquely mimics the way humans identify each other in the real world.” Source: RevenueBase Database · checked Oct 1, 2026
2	Iproov	Partial evidence	London, United KingdomHQ checked Oct 1, 2026	51-200	203 contacts →
	Partial evidence “iProov is the world leader in biometric face verification, helping organizations confirm that a real person is behind every digital identity.” Source: RevenueBase Database · checked Oct 1, 2026
3	Innovative Technology LTD	Indirect evidence	Oldham, United KingdomHQ checked Oct 1, 2026	201-500	191 contacts →
	Indirect evidence “For more than thirty years we have been at the forefront of innovation in transaction automation.” Source: RevenueBase Database · checked Oct 1, 2026
4	Biosite Systems LTD	Strong evidence	Solihull, United KingdomHQ checked Oct 1, 2026	51-200	111 contacts →
	Strong evidence “Biosite is a market leader and innovator in biometric access control and workforce management software solutions for the construction industry.” Source: RevenueBase Database · checked Oct 1, 2026
5	Idverse, Part Of Lexisnexis Risk Solutions	Strong evidence	London, United KingdomHQ checked Oct 1, 2026	51-200	80 contacts →
	Strong evidence “IDVerse®, part of LexisNexis® Risk Solutions is a cutting-edge document authentication and biometric verification solution that helps you confidently approve trusted transactions…” Source: RevenueBase Database · checked Oct 1, 2026
6	Mitek Systems UK	Indirect evidence	London, United KingdomHQ checked Oct 1, 2026	201-500	65 contacts →
	Indirect evidence “Mitek (NASDAQ: MITK) is a global leader in mobile capture and digital identity verification solutions built on the latest advancements in AI and machine learning.” Source: RevenueBase Database · checked Oct 1, 2026
7	Credas	Indirect evidence	Cardiff, United KingdomHQ checked Oct 1, 2026	11-50	48 contacts →
	Indirect evidence “No matter the market or sector, Credas can streamline your onboarding process using our market-leading technology to revolutionise the way you manage compliance and due diligence.” Source: RevenueBase Database · checked Oct 1, 2026
8	Keyless Part Of Ping Identity	Partial evidence	London, United KingdomHQ checked Oct 1, 2026	51-200	36 contacts →
	Partial evidence “On December 31, 2025, Keyless was acquired by Ping Identity to help deliver stronger, privacy-preserving identity verification and authentication for the AI era.” Source: RevenueBase Database · checked Oct 1, 2026
9	FACIA	Partial evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	34 contacts →
	Partial evidence “Facia empowers the world's fastest and most accurate facial biometrics solutions, including Deepfake Detection and 3D Liveness Detection.” Source: RevenueBase Database · checked Oct 1, 2026
10	fraud.com	Partial evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	33 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Oct 1, 2026
11	Irisguard UK LTD	Partial evidence	Milton Keynes, United KingdomHQ checked Oct 1, 2026	11-50	25 contacts →
	Partial evidence “IrisGuard is the world’s leading supplier of revolutionary end-to-end iris recognition biometric technology, which can find one person in millions, anywhere in the world, with…” Source: RevenueBase Database · checked Oct 1, 2026
12	Idgateway Limited	Indirect evidence	Farnborough, United KingdomHQ checked Oct 1, 2026	11-50	24 contacts →
	Indirect evidence “Managing ID passes, identity verification, access control and background checks across highly regulated environments is complex, time-consuming and high-risk.” Source: RevenueBase Database · checked Oct 1, 2026
13	Arana Security	Partial evidence	Wallington, United KingdomHQ checked Oct 1, 2026	1-10	22 contacts →
	Partial evidence “Arana Security specialises in Biometric solution, Access Control, surveillance and monitoring systems and App development.” Source: RevenueBase Database · checked Oct 1, 2026
14	Actatek Group Unified Edge AI IOT Solutions	Indirect evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	17 contacts →
	Indirect evidence “ACTAtek delivers Unified Edge AI IoT solutions that transform access control from a door security system into the real-time intelligence layer of modern buildings.” Source: RevenueBase Database · checked Oct 1, 2026
15	Realtime Biometrics Limited	Indirect evidence	Kensington, United KingdomHQ checked Oct 1, 2026	11-50	16 contacts →
	Indirect evidence Source: RevenueBase Database · checked Oct 1, 2026
16	folio.id	Indirect evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	15 contacts →
	Indirect evidence “In Today's digital world, knowing you're engaging with a real person is a challenge filled with risk.” Source: RevenueBase Database · checked Oct 1, 2026
17	FINGO	Strong evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	14 contacts →
	Strong evidence “FinGo is the world’s first biometric identity authentication solution, open to everyone.” Source: RevenueBase Database · checked Oct 1, 2026
18	Vigilate	Indirect evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	13 contacts →
	Indirect evidence “Top-ranked face recognition, fingerprint, and iris technology to make the world smarter, safer, stronger.” Source: RevenueBase Database · checked Oct 1, 2026
19	Suprema UK & Ireland	Indirect evidence	Birmingham, United KingdomHQ checked Oct 1, 2026	11-50	10 contacts →
	Indirect evidence Source: RevenueBase Database · checked Oct 1, 2026
20	Blindspot Global Sᴇqᴜr	Indirect evidence	London, United KingdomHQ checked Oct 1, 2026	51-200	10 contacts →
	Indirect evidence “Built on over 30 years of Army experience, safety is at the core of what we do.” Source: RevenueBase Database · checked Oct 1, 2026
21	Cctech LTD	Indirect evidence	Nottinghamshire, United KingdomHQ checked Oct 1, 2026	11-50	7 contacts →
	Indirect evidence “Based in Nottinghamshire, UK CCTech are an enterprise systems development house focused on delivering intelligent solutions for global clients across retail; sport & leisure; high…” Source: RevenueBase Database · checked Oct 1, 2026
22	Time Systems UK	Partial evidence	Milton Keynes, United KingdomHQ checked Oct 1, 2026	11-50	7 contacts →
	Partial evidence “Globally recognised provider of bespoke biometric time and attendance equipment, Time Systems UK Ltd has over 30 years of experience in the design and distribution of…” Source: RevenueBase Database · checked Oct 1, 2026
23	Authgear	Indirect evidence	London, United KingdomHQ checked Oct 1, 2026	51-200	5 contacts →
	Indirect evidence “Authgear enables organizations to provide users with secure access to any applications.” Source: RevenueBase Database · checked Oct 1, 2026
24	Faicetech	Indirect evidence	Manchester, United KingdomHQ checked Oct 1, 2026	11-50	5 contacts →
	Indirect evidence “Discover why we stand out as one of the industry's safest facial recognition companies.” Source: RevenueBase Database · checked Oct 1, 2026
25	Voxmind	Strong evidence	London, United KingdomHQ checked Oct 1, 2026	1-10	5 contacts →
	Strong evidence “Voxmind revolutionizes identity verification and authentication through voice biometrics, providing a secure, reliable, and user-friendly alternative to traditional methods.” Source: RevenueBase Database · checked Oct 1, 2026

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: biometric authentication software 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 biometric authentication software companies.
Partial evidence: Its own public description names part of biometric authentication software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name biometric authentication software 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 82 biometric authentication software companies based in the United Kingdom

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Biometric authentication software companies based in the United Kingdom at a glance

As of Oct 1, 2026

47.2%Verified-email coverage

19.4Average contacts per company

11-50Median size (employees)

43.9%Largest-city concentration · London

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 82 companies.

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 biometric authentication software 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.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “biometric authentication software 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 biometric authentication software 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 biometric authentication software companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
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, 752 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 October 1, 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.

Biometric authentication software companies by metro

Biometric authentication software companies in London36

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 biometric authentication software 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 biometric authentication software companies are there based in the United Kingdom?

RevenueBase identified 82 biometric authentication software companies headquartered in the United Kingdom as of October 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?

Callsign, headquartered in Manchester, tops this list with the largest team on record.

Which city has the most biometric authentication software companies?

London leads with 36 headquartered companies, followed by Manchester (3) and Cardiff (2).

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 752 verified decision-maker contacts tracked across these 82 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 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.