Company lists · Data refreshed September 2026

Top 25 Employee identity management software companies based in London, United Kingdom

Name: Employee identity management software companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 75 companies tracked

RevenueBase identified 75 employee identity management software companies headquartered in London, United Kingdom as of September 2026 and tracks 2,283 professional contacts across them, including 622 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers employee identity management software companies headquartered in London, 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 September 28, 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 Sep 28, 2026 86% judged on-target in blind review

75Companies

2,283Contacts tracked

622Verified emails

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The 25 largest employee identity management software companies based in London, United Kingdom

Ranked by team size

Top 25 of 75 employee identity management software companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to employee identity management 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	Giant Group	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	5,001-10,000	420 contacts →
	Strong evidence “Since 1992 Giant have provided specialist, end to end workforce management software and support services to large and small recruitment agencies, internationally.” Source: RevenueBase Database · checked Sep 28, 2026
2	Intragen	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	190 contacts →
	Partial evidence “Intragen is a cyber security business focused on managed Identity solutions and services.” Source: RevenueBase Database · checked Sep 28, 2026
3	PLUMM	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	n/a	155 contacts →
	Indirect evidence “Plumm is the next-generation HR platform designed to replace your patchwork of tools with one powerful, integrated system.” Source: RevenueBase Database · checked Sep 28, 2026
4	Cezanne HR	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	127 contacts →
	Partial evidence “Cezanne HR is leading the way in delivering smart, sophisticated and cost-effective Cloud HR and Native payroll software to UK and international businesses.” Source: RevenueBase Database · checked Sep 28, 2026
5	Trevonix	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	68 contacts →
	Strong evidence “Trevonix is the trusted partner for businesses seeking secure, seamless, and scalable Identity and Access Management (IAM) solutions.” Source: RevenueBase Database · checked Sep 28, 2026
6	Pirean	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	25 contacts →
	Strong evidence “Recognised experts in Identity and Access Management, we deliver industry leading capabilities for Consumer, Mobile and Workforce Identity.” Source: RevenueBase Database · checked Sep 28, 2026
7	3b For Salesforce	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	21 contacts →
	Partial evidence “3B for Salesforce offers an end-to-end suite of staffing and workforce management applications, natively built on Salesforce to deliver intuitive, robust solutions across…” Source: RevenueBase Database · checked Sep 28, 2026
8	Talentmapper	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	18 contacts →
	Strong evidence “Talent management software that gives you the right person, with the right skill, when you need it, with the knowledge that it is without bias.” Source: RevenueBase Database · checked Sep 28, 2026
9	XYDUS	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “Regulatory requirements are so often an essential part of onboarding.” Source: RevenueBase Database · checked Sep 28, 2026
10	Idlayr	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	16 contacts →
	Partial evidence “IDlayr is re-inventing online Identity for Humans and Agents - creating a unified governance and control plane binding mobile identity, delegated authority, and real-time…” Source: RevenueBase Database · checked Sep 28, 2026
11	Twikkie	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “Many growing organisations face the same problem.” Source: RevenueBase Database · checked Sep 28, 2026
12	folio.id	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 Sep 28, 2026
13	Skillstream	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	14 contacts →
	Partial evidence “Skillstream is the leading contingent workforce management technology available from the UK, powering global client programmes from AsiaPac to The Americas and all in between…” Source: RevenueBase Database · checked Sep 28, 2026
14	GO Enterprise HR Software	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “Go Enterprise HR: The Ultimate All-in-One HR Solution for Growing Businesses HR doesn’t have to be complicated.” Source: RevenueBase Database · checked Sep 28, 2026
15	Anfold Software LTD	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	13 contacts →
	Strong evidence “Anfold Software specialises in technology solutions that assist companies in saving time, reducing human error across their timesheet management, pay and bill cycles, and driving…” Source: RevenueBase Database · checked Sep 28, 2026
16	Keystone Talent Bank	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	13 contacts →
	Strong evidence “Keystone Talent Bank is the leading provider of workforce management software and contingent worker solutions in the UK.” Source: RevenueBase Database · checked Sep 28, 2026
17	Wealden HR & Payroll Solutions	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	13 contacts →
	Indirect evidence “Since 1983, Wealden has been providing industry-leading HR, Payroll and Time & Attendance solutions to clients as diverse as government bodies, international groups, schools and…” Source: RevenueBase Database · checked Sep 28, 2026
18	Hubbubhr	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	12 contacts →
	Indirect evidence “HubbubHR is proven, future-ready, Azure-secure enterprise people & AI tech built for what’s next Big legacy HR/ERP systems introduce rigidity, exorbitant cost, and delay.” Source: RevenueBase Database · checked Sep 28, 2026
19	Walkzero	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Strong evidence “Walkzero, is developing an AI-driven Human Resource Management System (HRMS) to help small and medium-sized enterprises (SMEs) streamline their HR processes, enhance employee…” Source: RevenueBase Database · checked Sep 28, 2026
20	Giant Precision	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	11 contacts →
	Indirect evidence “Take control of your contingent workforce with Giant Precision.” Source: RevenueBase Database · checked Sep 28, 2026
21	Self Group	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	10 contacts →
	Partial evidence “Self is a research and product company building an identity layer for the internet.” Source: RevenueBase Database · checked Sep 28, 2026
22	PLOY	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	10 contacts →
	Indirect evidence “Ploy is the most intuitive way to manage all access to your cloud environments, empowering organizations to gain complete visibility and turn any type of access into temporary…” Source: RevenueBase Database · checked Sep 28, 2026
23	Comcloudit	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	10 contacts →
	Indirect evidence “Transforming HR with Smart Automation.” Source: RevenueBase Database · checked Sep 28, 2026
24	My1login	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	9 contacts →
	Strong evidence “Founded in 2007, My1Login is a leader in Identity Management, protecting enterprises against cybersecurity threats through its Identity & Access Management (IAM) solution.” Source: RevenueBase Database · checked Sep 28, 2026
25	Idax Software Identity Analytics	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	9 contacts →
	Strong evidence “idax is a revolutionary Identity & Access Management (IAM) software system that automatically identifies what systems staff within a corporation should have access to.” Source: RevenueBase Database · checked Sep 28, 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: employee identity management 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 employee identity management software companies.
Partial evidence: Its own public description names part of employee identity management software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name employee identity management 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 75 employee identity management software companies based in London, United Kingdom

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Employee identity management software companies based in London, United Kingdom at a glance

As of Sep 28, 2026

27.2%Verified-email coverage

30.4Average contacts per company

11-50Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

5,001-10,000

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 75 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 employee identity management 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 London, United Kingdom whose own description of what they do matches “employee identity management 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 employee identity management 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 employee identity management software companies, and records with no verified work email. Companies headquartered outside London 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, 622 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 28, 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.

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 employee identity management 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 employee identity management software companies are there based in London, United Kingdom?

RevenueBase identified 75 employee identity management software companies headquartered in London, United Kingdom 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?

Giant Group, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most employee identity management software companies?

London leads the United Kingdom with 75 headquartered companies, followed by Leeds (8) and Manchester (7).

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 622 verified decision-maker contacts tracked across these 75 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 28, 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.