Company lists · Data refreshed September 2026

Top 25 Human resources SaaS marketing agencies based in the United Kingdom

Name: Human resources SaaS marketing agencies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,443 companies tracked

RevenueBase identified 1,443 human resources SaaS marketing agencies headquartered in the United Kingdom as of September 2026 and tracks 12,336 professional contacts across them, including 3,293 with verified work emails. London is the largest hub.

This list covers human resources SaaS marketing agencies 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 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

1,443Companies

12,336Contacts tracked

3,293Verified emails

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The 25 largest human resources SaaS marketing agencies based in the United Kingdom

Ranked by team size

Top 25 of 1,443 human resources SaaS marketing agencies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to human resources SaaS marketing agencies: 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	NGA Human Resources, An Alight Company	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	2,734 contacts →
	Strong evidence “At Alight \| NGA Human Resources our mission is to make HR work better.” Source: RevenueBase Database · checked Sep 28, 2026
2	Peninsula UK	Indirect evidence	Manchester, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,075 contacts →
	Indirect 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 28, 2026
3	Brighthr	Indirect evidence	Manchester, United KingdomHQ checked Sep 28, 2026	201-500	575 contacts →
	Indirect 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 28, 2026
4	Croner	Indirect evidence	Wheatfield Way, United KingdomHQ checked Sep 28, 2026	201-500	400 contacts →
	Indirect 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 28, 2026
5	Adviserplus	Indirect evidence	Ellesmere Port, United KingdomHQ checked Sep 28, 2026	201-500	205 contacts →
	Indirect evidence “AdviserPlus is the UK’s leading provider of HR technology, consulting, and advisory services.” Source: RevenueBase Database · checked Sep 28, 2026
6	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
7	Lace Partners	Indirect evidence	South Bank, United KingdomHQ checked Sep 28, 2026	51-200	129 contacts →
	Indirect evidence “Overview LACE Partners is trusted advisors to HR and business leaders navigating complex workforce challenges.” Source: RevenueBase Database · checked Sep 28, 2026
8	Cezanne HR	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	127 contacts →
	Indirect 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
9	Breathe	Indirect evidence	Horsham, United KingdomHQ checked Sep 28, 2026	51-200	107 contacts →
	Indirect evidence “Since 2012, Breathe has made HR simpler for growing businesses.” Source: RevenueBase Database · checked Sep 28, 2026
10	HR Connect	Strong evidence	Kings Hill, United KingdomHQ checked Sep 28, 2026	11-50	76 contacts →
	Strong evidence “HR Connect, part of Commercial Services Group, work with you to drive your human resources strategy, complimenting your business approach.” Source: RevenueBase Database · checked Sep 28, 2026
11	Tagmatix360	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	76 contacts →
	Indirect evidence “Tagmatix is a diversified path-breaking Salesforce and workforce management company.” Source: RevenueBase Database · checked Sep 28, 2026
12	Blue Lotus 360	Partial evidence	Gerrards Cross, United KingdomHQ checked Sep 28, 2026	51-200	75 contacts →
	Partial evidence “Blue lotus 360 is SaaS startup backed by corporate accelerator program of John Keells Holdings PLC's which is the largest corporation in Sri Lanka.” Source: RevenueBase Database · checked Sep 28, 2026
13	3search	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	72 contacts →
	Indirect evidence “3Search is a commercial recruitment agency, connecting talent to help you and your company thrive.” Source: RevenueBase Database · checked Sep 28, 2026
14	NRG	Indirect evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 28, 2026	51-200	65 contacts →
	Indirect evidence “Headquartered in Newcastle upon Tyne, NRG has established a strong presence across the UK and has successfully expanded into key USA markets.” Source: RevenueBase Database · checked Sep 28, 2026
15	SCEDE	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	64 contacts →
	Indirect evidence “Scede is a trusted scaling partner for tech companies globally, offering a breadth of talent acquisition, people operations and training services, designed to solve key growth…” Source: RevenueBase Database · checked Sep 28, 2026
16	Everett SKY	Indirect evidence	Essex, United KingdomHQ checked Sep 28, 2026	51-200	61 contacts →
	Indirect evidence “Based in Europe, Everett Sky specializes in helping businesses scale their teams for growth through transformative solutions and exceptional customer service.” Source: RevenueBase Database · checked Sep 28, 2026
17	Cogito	Indirect evidence	Bristol, United KingdomHQ checked Sep 28, 2026	11-50	61 contacts →
	Indirect evidence “Working with business leaders and HR teams to transform people strategies, HR and Recruitment teams and deliver improved Return on Investment across the entire employee lifecycle.” Source: RevenueBase Database · checked Sep 28, 2026
18	Third Republic	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	60 contacts →
	Indirect evidence “Salesforce and AI Workforce Solutions For The Companies Of Tomorrow Registered Salesforce Partner Approved Staff Augmentation Vendor to Salesforce and Amazon Bringing together AI…” Source: RevenueBase Database · checked Sep 28, 2026
19	Oakleaf Partnership	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	57 contacts →
	Indirect evidence “Since 2005, Oakleaf Partnership has been successfully placing people into jobs across every HR discipline, in every sector imaginable.” Source: RevenueBase Database · checked Sep 28, 2026
20	DNA Digital Native Advertising	Partial evidence	Bristol, United KingdomHQ checked Sep 28, 2026	11-50	57 contacts →
	Partial evidence “Employer Brand, Employee Engagement, and Marketing are in our DNA.” Source: RevenueBase Database · checked Sep 28, 2026
21	Career Moves Group I B Corp	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	53 contacts →
	Indirect evidence “Career Moves Group is a certified B Corp™ and women-owned boutique recruitment agency with over 15 years of experience.” Source: RevenueBase Database · checked Sep 28, 2026
22	Concept	Indirect evidence	Dudley, United KingdomHQ checked Sep 28, 2026	51-200	48 contacts →
	Indirect evidence “At Concept we offer a broad spectrum of talent services and solutions catering to your every need.” Source: RevenueBase Database · checked Sep 28, 2026
23	Ashdown Group	Partial evidence	Teddington, United KingdomHQ checked Sep 28, 2026	11-50	47 contacts →
	Partial evidence “Specialising in contract and permanent recruitment across IT, HR, Marketing, Accountancy and office administration.” Source: RevenueBase Database · checked Sep 28, 2026
24	Project Recruit	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	45 contacts →
	Indirect evidence “At Project Recruit, getting to know our clients is at the heart of what we do.” Source: RevenueBase Database · checked Sep 28, 2026
25	RR	Indirect evidence	Windsor, United KingdomHQ checked Sep 28, 2026	11-50	45 contacts →
	Indirect evidence “20+ years of challenging hiring norms ** High-value hiring for busy founders, leaders and teams.” 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: human resources SaaS marketing agencies. 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 human resources SaaS marketing agencies.
Partial evidence: Its own public description names part of human resources SaaS marketing agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name human resources SaaS marketing agencies. 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 1,443 human resources SaaS marketing agencies based in the United Kingdom

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Human resources SaaS marketing agencies based in the United Kingdom at a glance

As of Sep 28, 2026

26.7%Verified-email coverage

8.5Average contacts per company

1-10Median size (employees)

32.3%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,163

11-50

223

51-200

201-500

501-1,000

1,001-5,000

10001+

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 1,443 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 human resources SaaS marketing agencies, 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 “human resources SaaS marketing agencies”. 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 human resources SaaS marketing agencies), 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 human resources SaaS marketing agencies, 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, 3,293 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.

Human resources SaaS marketing agencies 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 human resources SaaS marketing agencies, 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 human resources SaaS marketing agencies are there based in the United Kingdom?

RevenueBase identified 1,443 human resources SaaS marketing agencies 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?

NGA Human Resources, An Alight Company, headquartered in London, tops this list with the largest team on record.

Which city has the most human resources SaaS marketing agencies?

London leads with 466 headquartered companies, followed by Manchester (50) and Bristol (25).

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 3,293 verified decision-maker contacts tracked across these 1,443 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.