Company lists · Data refreshed September 2026

Top 25 Employee onboarding platform developers based in London, United Kingdom

Name: Employee onboarding platform developers based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 122 companies tracked

RevenueBase identified 122 company matches for employee onboarding platform developers associated with London, United Kingdom as of September 2026 and tracks 1,490 professional contacts across them, including 431 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for employee onboarding platform developers associated with London, United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

122Companies

1,490Contacts tracked

431Verified emails

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The 25 largest employee onboarding platform developers based in London, United Kingdom

Ranked by team size

Top 25 of 122 company matches for employee onboarding platform developers based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	PLUMM	Exact match	London, United KingdomHQ recorded Sep 28, 2026	n/a	155 contacts →
	Exact match “Plumm is the next-generation HR platform designed to replace your patchwork of tools with one powerful, integrated system.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Omnipresent	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	124 contacts →
	Exact match “Omnipresent was acquired by Deel in October of 2025.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	VESTD	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	103 contacts →
	Exact match “Vestd is the UK’s go-to platform for employee share schemes, equity management and fundraising readiness.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	LEDGY	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	73 contacts →
	Exact match “We’re Ledgy, the leading equity and share plan management platform with best-in-class automation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Remundo	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	44 contacts →
	Exact match “Whether you are a scaling startup entering new markets or an enterprise optimizing your global workforce strategy, Remundo gives you direct access to global entities so you can…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Learn AMP B Corp	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	41 contacts →
	Exact match “The People Development Platform \| Employee learning, development and performance management Learn Amp is a learning technology company headquarted in London with customers located…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	metatalent.ai	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	36 contacts →
	Exact match “Building High Performing Teams!” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	CECG	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	35 contacts →
	Exact match “Core Engineering Consulting Group (CECG) is a vibrant Platform Engineering, Software Delivery and Cloud Strategy consultancy.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	IVY Tech	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	35 contacts →
	Exact match “We are reinventing how startups grow their software development teams by bridging the gap between outsourcing and in-house hiring.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	ZELT	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	31 contacts →
	Exact match “Zelt is the UK's leading native all-in-one HR and Finance platform, built to give mid-sized businesses the tools they need to manage, pay, and grow their people.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	UHUBS	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	27 contacts →
	Exact match “Uhubs saves revenue leaders time and ramps teams faster by using data to intelligently develop people into consistent high performers.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	TEMPO	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	27 contacts →
	Exact match “Tempo is on a mission to transform the hiring experience.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	XYDUS	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	16 contacts →
	Exact match “Regulatory requirements are so often an essential part of onboarding.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Twikkie	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	16 contacts →
	Exact match “Many growing organisations face the same problem.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	GO Enterprise HR Software	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	14 contacts →
	Exact match “Go Enterprise HR: The Ultimate All-in-One HR Solution for Growing Businesses HR doesn’t have to be complicated.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Transactionlink	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	13 contacts →
	Exact match “At TransactionLink we help companies around the globe to build tailored business onboarding processes in minutes, all with no code, saving huge amounts of time and money.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	moonstar.ai	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	13 contacts →
	Exact match “Moonstar.ai helps companies accelerate revenue growth by building a high performance and highly engaged workforce.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Hubbubhr	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	12 contacts →
	Exact match “HubbubHR is proven, future-ready, Azure-secure enterprise people & AI tech built for what’s next Big legacy HR/ERP systems introduce rigidity, exorbitant cost, and delay.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Peopleflow	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	12 contacts →
	Exact match “PeopleFlow is a Workday-focused consulting and automation company built for how Workday operates today.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Comcloudit	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	10 contacts →
	Exact match “Transforming HR with Smart Automation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	TFY	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	9 contacts →
	Exact match “The All-in-One Workforce Management Platform HR Directors Swear By.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Talent Clouds	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	8 contacts →
	Exact match “At Talent Clouds, we’re transforming workforce compliance with a seamless, secure SaaS platform designed for today’s fast-moving, and often, remote organisations.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Leadsie	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	8 contacts →
	Exact match “Impress your clients during onboarding!” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Annaizu	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	8 contacts →
	Exact match “At Annaizu, we haven’t just built a platform, we’ve built calm into every layer of complexity.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Hubbado	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	7 contacts →
	Exact match “We know that managing your workforce can be time-consuming and expensive, with multiple software providers, and difficulties tracking costs, validating charges, or reconciling…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “employee onboarding platform developers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 122 employee onboarding platform developers based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 431 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Employee onboarding platform developers based in London, United Kingdom at a glance

As of Sep 28, 2026

28.9%Verified-email coverage

12.2Average contacts per company

11-50Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 122 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with London, United Kingdom whose business descriptions match “employee onboarding platform developers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 431 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “employee onboarding platform developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many employee onboarding platform developers are there based in London, United Kingdom?

RevenueBase identified 122 company matches for employee onboarding platform developers associated with London, United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

PLUMM tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United Kingdom has the most employee onboarding platform developers?

London leads the United Kingdom with 122 company records, followed by Manchester (12) and Birmingham (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 431 professional contacts with verified work emails tracked across these 122 companies; direct dials are available where recorded.

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 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.