Company lists · Data refreshed September 2026

Top 25 Employee experience platform developers based in the United Kingdom

Name: Employee experience platform developers 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 386 companies tracked

RevenueBase identified 386 employee experience platform developers headquartered in the United Kingdom as of September 2026 and tracks 8,950 professional contacts across them, including 4,675 with verified work emails. London is the largest hub.

This list covers employee experience platform developers 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

386Companies

8,950Contacts tracked

4,675Verified emails

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The 25 largest employee experience platform developers based in the United Kingdom

Ranked by team size

Top 25 of 386 employee experience platform developers 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 employee experience platform developers: 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	Zellis	Partial evidence	Bristol, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,465 contacts →
	Partial evidence “Zellis helps organisations unlock better outcomes by creating exceptional experiences for their people.” Source: RevenueBase Database · checked Sep 28, 2026
2	MHR	Indirect evidence	Nottingham, United KingdomHQ checked Sep 28, 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 28, 2026
3	Reward Gateway	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	833 contacts →
	Strong evidence “Since 2006, we’ve helped the most innovative companies and HR leaders transform the employee experience to attract and retain top talent through employee benefits, strategic…” Source: RevenueBase Database · checked Sep 28, 2026
4	Personal Group	Indirect evidence	Milton Keynes, United KingdomHQ checked Sep 28, 2026	201-500	421 contacts →
	Indirect evidence “Welcome to Personal Group!” Source: RevenueBase Database · checked Sep 28, 2026
5	UNILY	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	311 contacts →
	Strong evidence “Reimagine the employee experience with Unily.” Source: RevenueBase Database · checked Sep 28, 2026
6	Perkbox	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	234 contacts →
	Strong evidence “Perkbox is a global rewards and benefits platform that helps companies to care for, connect with and celebrate their employees, no matter where they are or what they want.” Source: RevenueBase Database · checked Sep 28, 2026
7	Thrive	Partial evidence	Nottingham, United KingdomHQ checked Sep 28, 2026	201-500	209 contacts →
	Partial evidence “Thrive is the AI learning platform reinventing how modern businesses connect people, knowledge, skills and systems all in one place.” Source: RevenueBase Database · checked Sep 28, 2026
8	Talos360	Indirect evidence	Warrington, United KingdomHQ checked Sep 28, 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 28, 2026
9	PLUMM	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
10	Applearn	Indirect evidence	Manchester, United KingdomHQ checked Sep 28, 2026	51-200	133 contacts →
	Indirect evidence “With AppLearn Adopt, you can see how your people use your enterprise software and place real-time guidance in your apps to support them while they work.” Source: RevenueBase Database · checked Sep 28, 2026
11	FUSE	Partial evidence	Canterbury, United KingdomHQ checked Sep 28, 2026	51-200	92 contacts →
	Partial evidence “The Fuse learning platform helps to connect users with the knowledge and expertise they need to improve their skills and perform at their potential.” Source: RevenueBase Database · checked Sep 28, 2026
12	OAK Engage	Indirect evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 28, 2026	51-200	81 contacts →
	Indirect evidence “We help global brands create high-performance, connected cultures.” Source: RevenueBase Database · checked Sep 28, 2026
13	Pisano	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	73 contacts →
	Partial evidence “Collect, analyze, and act on feedback from all touchpoints with a unified XM platform powered by a Generative AI-driven assistant.” Source: RevenueBase Database · checked Sep 28, 2026
14	LEDGY	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	73 contacts →
	Partial evidence “We’re Ledgy, the leading equity and share plan management platform with best-in-class automation.” Source: RevenueBase Database · checked Sep 28, 2026
15	Workbuzz	Partial evidence	Milton Keynes, United KingdomHQ checked Sep 28, 2026	51-200	64 contacts →
	Partial evidence “WorkBuzz gives HR & People teams the simplest, fastest way to turn employee voice into clear, confident action – combining AI accuracy with human partnership.” Source: RevenueBase Database · checked Sep 28, 2026
16	Scarlettabbott	Strong evidence	York, United KingdomHQ checked Sep 28, 2026	11-50	64 contacts →
	Strong evidence “We make culture count We’re scarlettabbott, the leading independent employee experience and culture consultancy.” Source: RevenueBase Database · checked Sep 28, 2026
17	Applaud	Partial evidence	Worthing, United KingdomHQ checked Sep 28, 2026	51-200	61 contacts →
	Partial evidence “Applaud is the AI-powered HR Service Delivery (HRSD) platform built to reduce HR workload for global enterprises.” Source: RevenueBase Database · checked Sep 28, 2026
18	ETS PLC	Strong evidence	Camberley, United KingdomHQ checked Sep 28, 2026	11-50	52 contacts →
	Strong evidence “We are passionate about fostering a brilliant employee experience in workplaces, and supporting every person to learn, grow and develop so they can make their desired impact.” Source: RevenueBase Database · checked Sep 28, 2026
19	Teamflect	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	52 contacts →
	Partial evidence “Teamflect is an All-in-One Performance Management and Employee Engagement Software Built for Microsoft Teams and Microsoft Outlook.” Source: RevenueBase Database · checked Sep 28, 2026
20	Boostworks	Indirect evidence	Wheatley, United KingdomHQ checked Sep 28, 2026	51-200	47 contacts →
	Indirect evidence “The people that help people thrive.” Source: RevenueBase Database · checked Sep 28, 2026
21	Ezekia	Partial evidence	Recruiting Software. London, United KingdomHQ checked Sep 28, 2026	51-200	46 contacts →
	Partial evidence “Ezekia is the AI-powered, all-in-one executive search CRM and assignment management platform.” Source: RevenueBase Database · checked Sep 28, 2026
22	Each Person	Strong evidence	Wokingham, United KingdomHQ checked Sep 28, 2026	51-200	44 contacts →
	Strong evidence “Each Person is a bespoke employee experience and benefits platform designed to help HR leaders drive meaningful engagement, recognition, and retention.” Source: RevenueBase Database · checked Sep 28, 2026
23	Caboodle Technology	Partial evidence	Sandbach, United KingdomHQ checked Sep 28, 2026	51-200	42 contacts →
	Partial evidence “Caboodle Technology are one of the UK’s leading independent employee benefits and engagement companies offering a professional and innovative solution to businesses and employees…” Source: RevenueBase Database · checked Sep 28, 2026
24	Learn AMP B Corp	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	41 contacts →
	Strong evidence “The People Development Platform \| Employee learning, development and performance management Learn Amp is a learning technology company headquarted in London with customers located…” Source: RevenueBase Database · checked Sep 28, 2026
25	River Software	Indirect evidence	Gloucester, United KingdomHQ checked Sep 28, 2026	51-200	41 contacts →
	Indirect evidence “At River we enable workforces to be genuinely engaged, by unlocking a culture of performance and recognition.” 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 experience platform developers. 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 experience platform developers.
Partial evidence: Its own public description names part of employee experience platform developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name employee experience platform developers. 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 386 employee experience platform developers based in the United Kingdom

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Employee experience platform developers based in the United Kingdom at a glance

As of Sep 28, 2026

52.2%Verified-email coverage

23.2Average contacts per company

1-10Median size (employees)

42.0%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

193

11-50

134

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 386 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 experience platform developers, 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 “employee experience platform developers”. 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 experience platform developers), 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 experience platform developers, 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, 4,675 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.

Employee experience platform developers by metro

Employee experience platform developers in London162

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 experience platform developers, 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 experience platform developers are there based in the United Kingdom?

RevenueBase identified 386 employee experience platform developers 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?

Zellis, headquartered in Bristol, tops this list with the largest team on record.

Which city has the most employee experience platform developers?

London leads with 162 headquartered companies, followed by Manchester (11) and Bristol (8).

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 4,675 verified decision-maker contacts tracked across these 386 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.