Company lists · Data refreshed September 2026
Top 25 Inside sales software companies based in the United Kingdom
RevenueBase identified 254 inside sales software companies headquartered in the United Kingdom as of September 2026 and tracks 87,628 professional contacts across them, including 58,811 with verified work emails and 28,209 with mobile numbers. London is the largest hub.
This list covers inside sales 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 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.
The 25 largest inside sales software companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 188 | ||||
“At Algominds, we build AI agents that find you customers who already want to buy.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 65 | ||||
“Excelerate360 offers business development and sales outsourcing services for B2B software and technology companies in the UK, Europe, and North America.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 63 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 56 | ||||
“Capsule was launched in 2009 following the founders' frustration with existing CRM services that were either overly simplistic or far too complex for most businesses.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | 56 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 49 | ||||
“At Fly Pie, sales outsourcing isn’t a “done-for-you” service, it’s a growth engine we build with you.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | 44 | ||||
“What is Skylead?” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | 28 | ||||
“Are you still using Cumbersome Excel Spreadsheets to manually track your leads, customers and invoices?” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 24 | ||||
“Outbound Partners helps B2B companies generate pipeline through structured outbound.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 23 | ||||
“An enterprise cloud software company that helps teams solve their problems by boosting productivity and transforming tech stacks on CRM platforms such as Salesforce, Dynamics 365…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | OperatixStrong evidence | 21 | |||
“Operatix is an award-winning Sales Acceleration company that helps B2B Software vendors accelerate pipeline & revenue across the globe.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | 19 | ||||
Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | 18 | ||||
“Zumzum helps you transform your Lead-2-Cash process and the way your people work to become a real time business.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | 18 | ||||
“Vecta part of Kerridge Commercial Systems Ltd are market leader of Sales Intelligence Software solutions delivering award winning integrated CRM and Sales Analytics created to…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | 16 | ||||
“We deliver software solutions that help our customers work smarter using technologies to streamline operations, improve performance, and gain long-term scalable growth.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | 15 | ||||
“Looking for Software Buyers?” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | 14 | ||||
“Robosme - CRM to Win Easy to use cloud CRM that automates your business and benefits every process you touch the customer.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | Success With SystemsIndirect evidence | 14 | |||
Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | 13 | ||||
“We are an international team of CRM specialists with over 20 years experience and have developed outstanding expertise in delivering Client Relationship Management (CRM) solutions…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | 11 | ||||
“At Signals, we help complex sales organizations be more productive.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | 11 | ||||
“BrightOffice are a software and services company.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | 10 | ||||
“Blue Alligator is the maker of SalesPresenter™, the world-leading sales catalogue/order-taking app for the Apple iPad, iPhone/iPod touch.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 23 | 9 | ||||
“BuddyCRM is a sales management tool built by sales professionals, for sales professionals.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 | ||||
“SalesMethods is the leader in sales performance software for Salesforce that empowers sales team success.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 25 | 9 | ||||
“For over 11 years, Outshine has helped companies scale through effective sales outreach - without the need to build or grow an in-house sales team.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 254 inside sales software companies based in the United Kingdom
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Inside sales software companies based in the United Kingdom at a glance
As of Sep 3, 2026Companies by employee count
Verified emails by last verification
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 inside sales 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 “inside sales 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 inside sales 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, 58,811 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.
Inside sales software companies by metro
- Inside sales software companies in London92
Frequently asked
How many inside sales software companies are there based in the United Kingdom?
RevenueBase identified 254 inside sales 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?
Algominds, headquartered in London, tops this list with the largest team on record.
Which city has the most inside sales software companies?
London leads with 92 headquartered companies, followed by Birmingham (7) and Leeds (6).
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 58,811 verified decision-maker contacts tracked across these 254 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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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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