Company lists · Data verified August 2026

Top 25 Employee onboarding platforms based in the United Kingdom

Name: Employee onboarding platforms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 182 companies tracked

There are 182 employee onboarding platforms headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 4,147 professional contacts across them, including 1,023 with verified work emails and 428 with mobile numbers. London is the largest hub.

This list covers employee onboarding platforms headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

182Companies

4,147Contacts tracked

1,023Verified emails

428Mobile numbers

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The 25 largest employee onboarding platforms based in the United Kingdom

Ranked by team size

Top 25 of 182 employee onboarding platforms based in the United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	HIBOB	Clerkenwell	1,001-5,000	1,663	1
2	HARRI	London	501-1,000	631	321
3	Talos360	Warrington	51-200	162	72
4	PLUMM	London	n/a	152	23
5	Kolay İK	London	51-200	103	40
6	Msite By Infobric	Liverpool	51-200	82	46
7	ZEST	Leatherhead	51-200	82	41
8	OAK Engage	Newcastle Upon Tyne	51-200	81	55
9	symmetrical.ai	London	51-200	54	31
10	Boostworks	Wheatley	51-200	47	32
11	Remundo	London	51-200	44	4
12	Caboodle Technology	Sandbach	51-200	41	19
13	A-Listware	St Leonards-On-Sea	51-200	40	8
14	Each Person	Wokingham	51-200	39	24
15	ZELT	London	51-200	30	14
16	Benefex	Southampton	501-1,000	20	9
17	Harbour ATS	Copford	11-50	20	8
18	SORWE	n/a	11-50	19	9
19	Boxcore	London	11-50	19	8
20	Twikkie	London	11-50	19	4
21	Evalu-8 HR EHS Software	Oldham	11-50	17	9
22	XYDUS	London	11-50	16	10
23	HSI Skillko	Aston	11-50	16	7
24	GO Enterprise HR Software	London	11-50	15	4
25	Ilexius Gmbh	Fetcham Park Fetcham	11-50	14	12

Showing 25 of 182 employee onboarding platforms based in the United Kingdom

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Employee onboarding platforms based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 79 HQs

428Contacts with mobile numbers

4Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Employee onboarding platforms by metro

Metro	Companies
Employee onboarding platforms in London	79
Employee onboarding platforms in Manchester	7
Employee onboarding platforms in Bristol	4
Employee onboarding platforms in Cambridge	3
Employee onboarding platforms in Reading	3
Employee onboarding platforms in Liverpool	3
Employee onboarding platforms in Milton Keynes	2

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “employee onboarding platforms”, with match quality audited by blind human judging, and headquartered in the United Kingdom.
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: Contact records re-verify on a rolling cadence; 4 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many employee onboarding platforms are there based in the United Kingdom?

There are 182 employee onboarding platforms headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

HIBOB, headquartered in Clerkenwell, tops this list with the largest team on record.

Which city has the most employee onboarding platforms?

London leads with 79 headquartered companies, followed by Manchester (7) and Bristol (4).

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 1,023 verified decision-maker contacts tracked across these 182 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.