Company lists · Data refreshed September 2026

Top 25 Nonprofit human resources software companies based in the United Kingdom

RevenueBase identified 72 nonprofit human resources software companies headquartered in the United Kingdom as of September 2026 and tracks 387 professional contacts across them, including 171 with verified work emails and 33 with mobile numbers. London is the largest hub.

This list covers nonprofit human resources 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
72Companies
387Contacts tracked
171Verified emails
33Mobile numbers
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The 25 largest nonprofit human resources software companies based in the United Kingdom

Ranked by team size
Top 25 of 72 nonprofit human resources software companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names nonprofit human resources software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
BreatheIndirect evidence
Horsham, United KingdomHQ checked Sep 5, 202651-200107

“Since 2012, Breathe has made HR simpler for growing businesses.”

Source: company website · checked Sep 5, 2026
2
CharliehrPartial evidence
London, United KingdomHQ checked Sep 5, 202611-5044

“Charlie is the HR software for small teams with big ideas.”

Source: company website · checked Sep 5, 2026
3
Iris HRPartial evidence
Slough, United KingdomHQ checked Sep 5, 202651-20024

“IRIS's domestic and global HR software and HR services are used by over four million employees.”

Source: company website · checked Sep 5, 2026
4
Atkinson HRIndirect evidence
United KingdomHQ checked Sep 5, 202611-5016

“Values-driven, strategic HR services for values-driven organisations.”

Source: company website · checked Sep 5, 2026
5
Hallmark Solutions LTDStrong evidence
Carryduff, United KingdomHQ checked Sep 5, 202611-5010

“Hallmark Solutions is Northern Ireland's leading supplier of Human Resource Software.”

Source: company website · checked Sep 5, 2026
6
Roots HR CICIndirect evidence
Uk, United KingdomHQ checked Sep 5, 20261-108

“Roots HR are the UK leader in the HR consultancy services marketplace for small to medium social sector employers, existing to serve those with workforces from 1 volunteer up to…”

Source: company website · checked Sep 5, 2026
7
PS Human ResourcesStrong evidence
Nacton, United KingdomHQ checked Sep 5, 20261-107

“At PS Human Resources Ltd, we provide strategic outsourced HR services for SMEs across the UK, with deep roots in Suffolk and the East of England.”

Source: company website · checked Sep 5, 2026
8
UpstraxIndirect evidence
London, United KingdomHQ checked Sep 5, 20261-107

“At Upstrax, we're revolutionizing the way businesses manage their most valuable asset-their people.”

Source: company website · checked Sep 5, 2026
9
Theatre People HRIndirect evidence
London, United KingdomHQ checked Sep 5, 20261-103

“Theatre People Ltd was co-founded by Bendy Ashfield and Greg Jauncey as a flexible way for arts organisations of any scale to add additional HR capacity to their teams.”

Source: company website · checked Sep 5, 2026
10
AIR HRPartial evidence
Birmingham, United KingdomHQ checked Sep 5, 202611-503

“Air provides simple, beautiful and connected HR software for small businesses.”

Source: company website · checked Sep 5, 2026
11
Marches HRIndirect evidence
Hereford, United KingdomHQ checked Sep 5, 20261-103

“We’re a multi-award-winning, independent HR consultancy bringing true HR expertise to small businesses and charities.”

Source: company website · checked Sep 5, 2026
12
HR Services PartnershipIndirect evidence
Horsham, United KingdomHQ checked Sep 5, 202611-502

“At HR Services Partnership we know the voluntary and community sector.”

Source: company website · checked Sep 5, 2026
13Wellingborough, United KingdomHQ checked Sep 5, 20261-102

“The LunarCloud team helps organisations and charities to select the right innovative and affordable HR Solution and People Technology.”

Source: company website · checked Sep 5, 2026
14
Quadzu LTDIndirect evidence
Pontypool, United KingdomHQ checked Sep 5, 20261-102

“Quadzu addresses issues faced by lots of recruitment and staffing businesses.”

Source: company website · checked Sep 5, 2026
15
Evergreen HRIndirect evidence
Uk, United KingdomHQ checked Sep 5, 20261-102

“As a business owner or people manager, you're already juggling a dozen responsibilities.”

Source: company website · checked Sep 5, 2026
16
Linden Tree HRIndirect evidence
Catford, United KingdomHQ checked Sep 5, 20261-102

“Fair Pragmatic and Timely HR for small and medium sized employers.”

Source: company website · checked Sep 5, 2026
17
Learn ResilienceIndirect evidence
Hitchin, United KingdomHQ checked Sep 5, 20261-101
Source: company website · checked Sep 5, 2026
18
Papaya Software LTDPartial evidence
Deal, United KingdomHQ checked Sep 5, 20261-101

“Papaya Software has released its brand new HR solution - Papaya HR!”

Source: company website · checked Sep 5, 2026
19
HR PlannerIndirect evidence
Fleet, United KingdomHQ checked Sep 5, 20261-101

“HR Planner is a simpler and cost-effective way for SMEs to manage all their HR obligations in one place.”

Source: company website · checked Sep 5, 2026
20
Humansource LTDIndirect evidence
London, United KingdomHQ checked Sep 5, 20261-101
Source: company website · checked Sep 5, 2026
21
Magenta HRStrong evidence
Edinburgh, United KingdomHQ checked Sep 5, 20261-101

“Magenta HR provides outsourced Human Resource (HR) services to small and medium sized enterprises (SME’s) as well as Third Sector organisations.”

Source: company website · checked Sep 5, 2026
22
ApprisehrStrong evidence
Manchester, United KingdomHQ checked Sep 5, 20261-101

“With 30 years in Generalist HR with 16 of those in a Senior Management role, a Masters degree in Strategic Human Resource Management and Chartered Membership of CIPD we are…”

Source: company website · checked Sep 5, 2026
23
Acorns & Oaks LTDIndirect evidence
London, United KingdomHQ checked Sep 5, 20261-101

“Helping small businesses to recruit, onboard and manage their staff throughout the complete employee lifecycle.”

Source: company website · checked Sep 5, 2026
24
HR SparkIndirect evidence
Swindon, United KingdomHQ checked Sep 5, 20261-101

“HR SPARK™ provides flexible, people‑first HR support for SMEs and charities across the UK.”

Source: company website · checked Sep 5, 2026
25
Lappin HRIndirect evidence
Leyburn, United KingdomHQ checked Sep 5, 20261-101

“We believe that good HR should be available to all company's, even the small ones.”

Source: company website · checked Sep 5, 2026

Showing 25 of 72 nonprofit human resources software companies based in the United Kingdom

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Nonprofit human resources software companies based in the United Kingdom at a glance

As of Sep 5, 2026
1-10Median size (employees)
LondonLargest hub · 18 HQs
33Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
50
11-50
15
51-200
5
10001+
1

Verified emails by last verification

0–30
160
31–60
9
61–90
0
90–180
0
180+
2

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 nonprofit human resources software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “nonprofit human resources software companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among nonprofit human resources 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 an evidence 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, 171 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 5, 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

How many nonprofit human resources software companies are there based in the United Kingdom?

RevenueBase identified 72 nonprofit human resources software companies 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?

Breathe, headquartered in Horsham, tops this list with the largest team on record.

Which city has the most nonprofit human resources software companies?

London leads with 18 headquartered companies, followed by Birmingham (2) and Brighton (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 171 verified decision-maker contacts tracked across these 72 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 5, 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.