Company lists · Data refreshed September 2026

Top 25 HR software professional services based in the United Kingdom

Name: HR software professional services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 26, 2026 2,665 companies tracked

RevenueBase identified 2,665 HR software professional services headquartered in the United Kingdom as of September 2026 and tracks 40,345 professional contacts across them, including 15,970 with verified work emails and 3,919 with mobile numbers. London is the largest hub.

This list covers HR software professional services 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 September 26, 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 26, 2026 86% judged on-target in blind review

2,665Companies

40,345Contacts tracked

15,970Verified emails

3,919Mobile numbers

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The 25 largest HR software professional services based in the United Kingdom

Ranked by team size

Top 25 of 2,665 HR software professional services based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 26, 2026. RevenueBase Smart Search rates how each company's information relates to HR software professional services: 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	SAGE	Indirect evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 26, 2026	10001+	13,063 contacts →
	Indirect evidence “At Sage, we knock down barriers with information, insights, and tools to help your business flow.” Source: RevenueBase Database · checked Sep 26, 2026
2	NGA Human Resources, An Alight Company	Partial evidence	London, United KingdomHQ checked Sep 26, 2026	1,001-5,000	2,734 contacts →
	Partial evidence “At Alight \| NGA Human Resources our mission is to make HR work better.” Source: RevenueBase Database · checked Sep 26, 2026
3	Iris Software Group	Partial evidence	Slough, United KingdomHQ checked Sep 26, 2026	1,001-5,000	2,218 contacts →
	Partial evidence “IRIS Software Group is a leading business software and services provider, one of the UK’s largest privately held software companies.” Source: RevenueBase Database · checked Sep 26, 2026
4	Zellis	Indirect evidence	Bristol, United KingdomHQ checked Sep 26, 2026	1,001-5,000	1,465 contacts →
	Indirect evidence “Zellis helps organisations unlock better outcomes by creating exceptional experiences for their people.” Source: RevenueBase Database · checked Sep 26, 2026
5	Peninsula UK	Partial evidence	Manchester, United KingdomHQ checked Sep 26, 2026	1,001-5,000	1,075 contacts →
	Partial evidence “Peninsula is the worldwide leader and most trusted provider of employment law, HR and health & safety services, supporting over small businesses in the U.K.” Source: RevenueBase Database · checked Sep 26, 2026
6	MHR	Indirect evidence	Nottingham, United KingdomHQ checked Sep 26, 2026	501-1,000	929 contacts →
	Indirect evidence “At MHR, we enable sustainable high-performance by making work flow – for organisations and for the people working within them.” Source: RevenueBase Database · checked Sep 26, 2026
7	Brighthr	Strong evidence	Manchester, United KingdomHQ checked Sep 26, 2026	201-500	575 contacts →
	Strong evidence “BrightHR is a leading provider of HR and health & safety software, supporting over businesses across the UK, Ireland, Canada, Australia, and New Zealand.” Source: RevenueBase Database · checked Sep 26, 2026
8	ROC	Indirect evidence	Weybridge, United KingdomHQ checked Sep 26, 2026	501-1,000	532 contacts →
	Indirect evidence “We are a leading service provider of Human Capital Management (HCM) solutions across Europe, serving more than 1.5 million employees monthly with an annual revenue of 78 million…” Source: RevenueBase Database · checked Sep 26, 2026
9	Frontier Software	Strong evidence	Lightwater, United KingdomHQ checked Sep 26, 2026	201-500	507 contacts →
	Strong evidence “Established in 1983, Frontier Software is an acknowledged leader in the provision of a global HR & Payroll software solution.” Source: RevenueBase Database · checked Sep 26, 2026
10	Giant Group	Partial evidence	London, United KingdomHQ checked Sep 26, 2026	5,001-10,000	420 contacts →
	Partial 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 26, 2026
11	Croner	Partial evidence	Wheatfield Way, United KingdomHQ checked Sep 26, 2026	201-500	400 contacts →
	Partial evidence “Our award winning HR and health & safety services free you from workforce admin and help keep you on the right side of the law.” Source: RevenueBase Database · checked Sep 26, 2026
12	Moorepay	Partial evidence	Swinton, United KingdomHQ checked Sep 26, 2026	501-1,000	364 contacts →
	Partial evidence “Moorepay delivers expert HR and payroll solutions trusted by SMEs across the UK and Ireland.” Source: RevenueBase Database · checked Sep 26, 2026
13	Ubique Systems	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	501-1,000	333 contacts →
	Indirect evidence “Ubique Systems is a fast growing multifaceted organization which offers a comprehensive array of outsourcing and consulting services for its customers, including recruitment…” Source: RevenueBase Database · checked Sep 26, 2026
14	Siamo Group	Partial evidence	Birmingham, United KingdomHQ checked Sep 26, 2026	51-200	291 contacts →
	Partial evidence “Siamo Group is an award-winning company providing UK-wide personnel services, strategically combining a complete recruitment service with integrated training, HR, payroll and IT…” Source: RevenueBase Database · checked Sep 26, 2026
15	Huntress	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	51-200	289 contacts →
	Indirect evidence “Since our establishment in Huntress has been at the forefront of recruitment across a range of specialist sectors.” Source: RevenueBase Database · checked Sep 26, 2026
16	EST	Strong evidence	Groesfaen, United KingdomHQ checked Sep 26, 2026	n/a	244 contacts →
	Strong evidence “EST are a multi service professional practice offering HR Consultancy, Accountancy & Tax advice and Commercial Finance.” Source: RevenueBase Database · checked Sep 26, 2026
17	CIPHR	Partial evidence	Reading, United KingdomHQ checked Sep 26, 2026	201-500	219 contacts →
	Partial evidence “We provide HR, payroll, benefits and learning solutions for UK organisations with employees.” Source: RevenueBase Database · checked Sep 26, 2026
18	Adviserplus	Partial evidence	Ellesmere Port, United KingdomHQ checked Sep 26, 2026	201-500	205 contacts →
	Partial evidence “AdviserPlus is the UK’s leading provider of HR technology, consulting, and advisory services.” Source: RevenueBase Database · checked Sep 26, 2026
19	Brain Payroll	Partial evidence	London, United KingdomHQ checked Sep 26, 2026	51-200	173 contacts →
	Partial evidence “A cloud based online software that provides Intuitive and comprehensive solutions integrated with impeccable management of employees payroll processing in real-time.” Source: RevenueBase Database · checked Sep 26, 2026
20	The HR Dept	Partial evidence	Bristol, United KingdomHQ checked Sep 26, 2026	51-200	169 contacts →
	Partial evidence “Welcome to The HR Dept.” Source: RevenueBase Database · checked Sep 26, 2026
21	Talos360	Indirect evidence	Warrington, United KingdomHQ checked Sep 26, 2026	51-200	161 contacts →
	Indirect evidence “Talos360 is the market leader in autonomous people solutions, empowering businesses to hire smarter, grow faster, and unlock their people’s full potential through autonomous…” Source: RevenueBase Database · checked Sep 26, 2026
22	PLUMM	Partial evidence	London, United KingdomHQ checked Sep 26, 2026	n/a	155 contacts →
	Partial 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 26, 2026
23	Sellick Partnership	Partial evidence	The Tootal Buildings, United KingdomHQ checked Sep 26, 2026	51-200	152 contacts →
	Partial evidence “Established in 2002, Sellick Partnership is a market-leading professional services recruitment specialist.” Source: RevenueBase Database · checked Sep 26, 2026
24	Playroll	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	51-200	151 contacts →
	Indirect evidence “Meet Playroll - your all-in-one workforce management platform.” Source: RevenueBase Database · checked Sep 26, 2026
25	Cintra HR & Payroll Services	Strong evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 26, 2026	51-200	148 contacts →
	Strong evidence “Proudly based in the North East, our multi award-winning Payroll & HR service has been delivering professional payroll and HR solutions for over 40 years.” Source: RevenueBase Database · checked Sep 26, 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: HR software professional 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 HR software professional services.
Partial evidence: Its own public description names part of HR software professional services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name HR software professional 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 2,665 HR software professional services based in the United Kingdom

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HR software professional services based in the United Kingdom at a glance

As of Sep 26, 2026

39.6%Verified-email coverage

9.7%Mobile-number coverage

15.1Average contacts per company

1-10Median size (employees)

24.0%Largest-city concentration · London

Sep 26, 2026Page data refreshed

Companies by employee count

1-10

2,115

11-50

393

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 28.0d

10,7080–30

4,81431–60

29861–90

1190–180

139180+

Company record updated

Median 89.0d

00–30

5,32331–60

15,52761–90

16,96790–180

2,528180+

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 HR software professional 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.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “HR software professional 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 HR software professional 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 HR software professional services, 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, 15,970 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 26, 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.

HR software professional services by metro

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 HR software professional 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 HR software professional services are there based in the United Kingdom?

RevenueBase identified 2,665 HR software professional services headquartered in the 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?

SAGE, headquartered in Newcastle Upon Tyne, tops this list with the largest team on record.

Which city has the most HR software professional services?

London leads with 640 headquartered companies, followed by Manchester (74) and Leeds (36).

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 15,970 verified decision-maker contacts tracked across these 2,665 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 26, 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.