Company lists · Data refreshed September 2026

Top 25 CRM software developers based in London, United Kingdom

Name: CRM software 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 9, 2026 134 companies tracked

RevenueBase identified 134 CRM software developers headquartered in London, United Kingdom as of September 2026 and tracks 1,685 professional contacts across them, including 535 with verified work emails and 87 with mobile numbers. London is the largest hub.

This list covers CRM software developers headquartered in London, 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 9, 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 9, 2026 86% judged on-target in blind review

134Companies

1,685Contacts tracked

535Verified emails

87Mobile numbers

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The 25 largest CRM software developers based in London, United Kingdom

Ranked by team size

Top 25 of 134 CRM software developers based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 9, 2026. RevenueBase Smart Search rates how each company's information relates to CRM software 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	ATTIO	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	51-200	145 contacts →
	Partial evidence “Attio is the AI CRM for the next era of companies.” Source: RevenueBase Database · checked Sep 9, 2026
2	Manras Technologies	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	51-200	130 contacts →
	Partial evidence “Manras Technologies started as an initiative for bringing young, passionate Salesforce CRM talent under one roof and to create simple yet innovative solutions for various service…” Source: RevenueBase Database · checked Sep 9, 2026
3	Pobuca	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	51-200	78 contacts →
	Indirect evidence “Pobuca, the Customer Experience (CX) company.” Source: RevenueBase Database · checked Sep 9, 2026
4	REDK	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	51-200	78 contacts →
	Partial evidence “redk is a CRM consulting company with a difference.” Source: RevenueBase Database · checked Sep 9, 2026
5	Cloud Orca	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	51-200	73 contacts →
	Partial evidence “Part of Cooper Parry, Cloud Orca are a award winning London based Salesforce CRM consultancy focused on delivering effective, profitable and successful implementations and support…” Source: RevenueBase Database · checked Sep 9, 2026
6	Optimiser	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	51-200	57 contacts →
	Indirect evidence “Optimiser is a fully configurable business intelligence ecosystem that helps organisations manage relationships, operations, workflows, communications, and commercial activities…” Source: RevenueBase Database · checked Sep 9, 2026
7	Warrgyizmorsch	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	51-200	51 contacts →
	Partial evidence “Tailored ERP, CRM & SaaS that automates your operations and fuels measurable growth.” Source: RevenueBase Database · checked Sep 9, 2026
8	Nebula Consulting	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	35 contacts →
	Partial evidence “As a Salesforce registered partner, we specialise in implementing and supporting Salesforce CRM and B2B Marketing Automation services.” Source: RevenueBase Database · checked Sep 9, 2026
9	Beacon CRM	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	34 contacts →
	Partial evidence “We help charities using inadequate, outdated, and overcomplicated technology, to start running like clockwork, by giving them a brilliant CRM.” Source: RevenueBase Database · checked Sep 9, 2026
10	Dynamica Labs	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	32 contacts →
	Partial evidence “Dynamica Labs is one of the oldest Dynamics CRM Partners and one of a very few companies with ISO 9001 Quality Management System certification for Dynamics CRM project delivery…” Source: RevenueBase Database · checked Sep 9, 2026
11	Goggle Software LTD	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	1-10	29 contacts →
	Partial evidence “We build bespoke job management and CRM systems for construction and field service businesses.” Source: RevenueBase Database · checked Sep 9, 2026
12	Concep	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	28 contacts →
	Indirect evidence “We live and breathe relationship marketing.” Source: RevenueBase Database · checked Sep 9, 2026
13	Cantata	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	25 contacts →
	Partial evidence “Cantata is the UK’s leading independent CRM specialist consultancy, helping organisations to gain the most from customer and stakeholder management.” Source: RevenueBase Database · checked Sep 9, 2026
14	Ascendx	Strong evidence	London, United KingdomHQ checked Sep 9, 2026	1-10	22 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 9, 2026
15	Robosme	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	15 contacts →
	Partial evidence “Robosme - CRM to Win Easy to use cloud CRM that automates your business and benefits every process you touch the customer.” Source: RevenueBase Database · checked Sep 9, 2026
16	Akarigo	Strong evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	13 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 9, 2026
17	Ifinity For Imis And Agentz	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	9 contacts →
	Indirect evidence “iFINITY Ltd, the expert technology partner for associations, professional societies and not-for-profits.” Source: RevenueBase Database · checked Sep 9, 2026
18	Salesmethods LTD	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	9 contacts →
	Partial evidence “SalesMethods is the leader in sales performance software for Salesforce that empowers sales team success.” Source: RevenueBase Database · checked Sep 9, 2026
19	Repforce	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	8 contacts →
	Indirect evidence “At Repforce, we understand that achieving sales success requires more than just hard work and persistence - it requires the right tools.” Source: RevenueBase Database · checked Sep 9, 2026
20	Customeros	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	1-10	8 contacts →
	Partial evidence “A proactive CRM designed for modern SaaS.” Source: RevenueBase Database · checked Sep 9, 2026
21	Mawens Business Solutions	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	7 contacts →
	Indirect evidence “Mawens Business Solutions, with its expert team and history of successful large-scale projects in the constantly emerging IT sector, is offering its customers professional…” Source: RevenueBase Database · checked Sep 9, 2026
22	Salesseek	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	7 contacts →
	Indirect evidence “SalesSeek.com aligns your Sales and Marketing process by connecting the most important parts of your business.” Source: RevenueBase Database · checked Sep 9, 2026
23	Glassjaw	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	5 contacts →
	Partial evidence “We build data-driven CRM and marketing automation programs that connect with modern audiences.” Source: RevenueBase Database · checked Sep 9, 2026
24	Bite Tech LTD	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	1-10	5 contacts →
	Indirect evidence “We deliver expertise you can trust.” Source: RevenueBase Database · checked Sep 9, 2026
25	Appdraft	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	1-10	4 contacts →
	Indirect evidence “Appdraft are Salesforce Registered Consulting Partners based in London.” Source: RevenueBase Database · checked Sep 9, 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: CRM software 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 CRM software developers.
Partial evidence: Its own public description names part of CRM software developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name CRM software 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 134 CRM software developers based in London, United Kingdom

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CRM software developers based in London, United Kingdom at a glance

As of Sep 9, 2026

31.8%Verified-email coverage

5.2%Mobile-number coverage

12.6Average contacts per company

1-10Median size (employees)

104.5%Largest-city concentration · London

Sep 9, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 12.0d

4910–30

4231–60

061–90

190–180

1180+

Company record updated

Median 60.0d

00–30

89931–60

57161–90

13290–180

83180+

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 CRM software 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 London, United Kingdom whose own description of what they do matches “CRM software 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 CRM software 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 CRM software developers, and records with no verified work email. Companies headquartered outside London 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, 535 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 9, 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.

CRM software developers by metro in the United Kingdom

CRM software developers in London140

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 CRM software 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 CRM software developers are there based in London, United Kingdom?

RevenueBase identified 134 CRM software developers headquartered in London, 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?

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

Which city has the most CRM software developers?

London leads with 140 headquartered companies, followed by Manchester (13) and Birmingham (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 535 verified decision-maker contacts tracked across these 134 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 9, 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.