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Company lists · Data refreshed September 2026

Top 25 Customer expansion platforms based in the United Kingdom

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 364 companies tracked

RevenueBase identified 364 customer expansion platforms headquartered in the United Kingdom as of September 2026 and tracks 93,271 professional contacts across them, including 62,143 with verified work emails and 30,208 with mobile numbers. London is the largest hub.

This list covers customer expansion 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. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 3, 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review
364Companies
93,271Contacts tracked
62,143Verified emails
30,208Mobile numbers
Unlock all 364 companies Free signup · no credit card · 500 free credits

The 25 largest customer expansion platforms based in the United Kingdom

Ranked by team size
Top 25 of 364 customer expansion platforms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names customer expansion platforms: 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
SalesforceStrong evidence
London, United Kingdom10001+85,557

“We're the #1 AI CRM-where humans with agents drive customer success together with AI, data, and Customer 360 apps on one platform.”

Source: company website · checked Sep 3, 2026
2
BRAZEStrong evidence
London, United Kingdom1,001-5,0002,133

“Braze is the leading customer engagement platform that empowers brands to Be Absolutely Engaging.™ Braze allows any marketer to collect and take action on any amount of data from…”

Source: company website · checked Sep 3, 2026
3
IterableStrong evidence
London, United Kingdom501-1,000766

“Iterable is the AI customer engagement platform built for enterprise scale, loved by teams, and trusted by global brands like Priceline, Fabletics, Blockchain, and Box.”

Source: company website · checked Sep 3, 2026
4
On24Indirect evidence
London, United Kingdom501-1,000623

“ON24, a Cvent company, is on a mission to help businesses bring their go-to-market strategy into the AI era and drive cost-effective revenue growth.”

Source: company website · checked Sep 3, 2026
5
SugaraiIndirect evidence
London, United Kingdom501-1,000565

“SugarAI: the CRM that actually helps sellers sell.”

Source: company website · checked Sep 3, 2026
6
AirshipStrong evidence
London, United Kingdom201-500295

“Airship is the only mobile-first customer experience platform that empowers brands to build unified cross-channel experiences and AI-powered journeys that deliver measurable…”

Source: company website · checked Sep 3, 2026
7
Act-On SoftwarePartial evidence
Reading, United Kingdom201-500209

“Act-On Software provides the innovative marketing automation platform for marketers who think big and act boldly.”

Source: company website · checked Sep 3, 2026
8
Agentforce CommerceIndirect evidence
London, United Kingdom10001+175

“The future of business is CRM + AI + Data + Trust.”

Source: company website · checked Sep 3, 2026
9
ATTIOIndirect evidence
London, United Kingdom51-200141

“Attio is the AI CRM for the next era of companies.”

Source: company website · checked Sep 3, 2026
10
OmetriaStrong evidence
London, United Kingdom51-200135

“Ometria is the first and only customer data experience platform (CDXP) built for retail brands.”

Source: company website · checked Sep 3, 2026
11
EmailclubIndirect evidence
London, United Kingdom51-200103

“At EmailClub, we are building the strongest CRM team on the market.”

Source: company website · checked Sep 3, 2026
12
Spotler UKIndirect evidence
Guildford, United Kingdom51-20084

“We are Spotler!”

Source: company website · checked Sep 3, 2026
13
HTK An ITA Group CompanyIndirect evidence
Ipswich, United Kingdom11-5075

“HTK is a leading cloud-based (SaaS) software-as-a-service provider, offering innovative data insights, machine learning and loyalty marketing solutions.”

Source: company website · checked Sep 3, 2026
14
Workbooks CRMStrong evidence
Reading, United Kingdom51-20063

“Workbooks is a CRM SaaS platform used by growing companies to run their business and engage effectively with their customers.”

Source: company website · checked Sep 3, 2026
15
Force24Partial evidence
Leeds, United Kingdom51-20061

“For customer buying cycles that last months, not minutes, choose Force24.”

Source: company website · checked Sep 3, 2026
16
NetmeraStrong evidence
United Kingdom51-20057

“Netmera unifies customer data and AI-powered omnichannel engagement in a single platform.”

Source: company website · checked Sep 3, 2026
17
PLINCIndirect evidence
London, United Kingdom51-20056

“Plinc helps brands turn first-party data into competitive advantage.”

Source: company website · checked Sep 3, 2026
18
OptimiserPartial evidence
London, United Kingdom51-20056

“Optimiser CRM is an all-in-one robust platform which lets you manage and make intelligent decisions about your business for growth.”

Source: company website · checked Sep 3, 2026
19
BidnamicIndirect evidence
Leeds, United Kingdom51-20053

“Here at Bidnamic we help market-leading ecommerce retailers scale their business in the most efficient way, using technology to master purchase intent.”

Source: company website · checked Sep 3, 2026
20
ArmadilloIndirect evidence
Bristol, United Kingdom51-20048

“We are Armadillo - A Bond Company, a multi-award winning CRM agency.”

Source: company website · checked Sep 3, 2026
21
MediawideIndirect evidence
Gloucester, United Kingdom51-20045

“Mediawide offers you a SaaS marketing technology that helps you adapt, localize and personalize your marketing campaigns across all media - video, digital and print.”

Source: company website · checked Sep 3, 2026
22
ScanmarqedIndirect evidence
London, United Kingdom51-20043

“Dare to do more with your data!”

Source: company website · checked Sep 3, 2026
23
Rapier AI AnalyticsStrong evidence
London, United Kingdom11-5039

“We are Rapier, a leading AI customer growth platform with a strong focus on transforming first-party customer data into business growth.”

Source: company website · checked Sep 3, 2026
24
EloquaIndirect evidence
London, United Kingdom1,001-5,00036

“Eloqua, a wholly-owned subsidiary of Oracle, is the leading provider of modern marketing automation and revenue performance management software that helps ensure every component…”

Source: company website · checked Sep 3, 2026
25
MailercloudIndirect evidence
London, United Kingdom11-5030

“Since 2013, mailercloud has expanded to become one of the largest and most extensive cloud-based email services, that resolves the task of reliably delivering emails on behalf of…”

Source: company website · checked Sep 3, 2026

Showing 25 of 364 customer expansion platforms based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 62,143 reachable decision-makers.

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See all 364 companies

Customer expansion platforms based in the United Kingdom at a glance

As of Sep 3, 2026
1-10Median size (employees)
LondonLargest hub · 161 HQs
30,208Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
202
11-50
104
51-200
37
201-500
9
501-1,000
4
1,001-5,000
6
10001+
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 customer expansion platforms, 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 “customer expansion platforms”. 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 customer expansion platforms, 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, 62,143 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 3, 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.

Customer expansion platforms by metro

  • Customer expansion platforms in London161

Frequently asked

How many customer expansion platforms are there based in the United Kingdom?

RevenueBase identified 364 customer expansion platforms 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?

Salesforce, headquartered in London, tops this list with the largest team on record.

Which city has the most customer expansion platforms?

London leads with 161 headquartered companies, followed by Manchester (12) and Glasgow (5).

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 62,143 verified decision-maker contacts tracked across these 364 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 3, 2026.

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Related lists

Browse: Companies home · All United Kingdom lists · All Customer expansion platforms lists · New lists

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.

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