Company lists · Data refreshed September 2026

Top 25 Cloud software development companies based in London, United Kingdom

Name: Cloud software development companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 8, 2026 949 companies tracked

RevenueBase identified 949 cloud software development companies headquartered in London, United Kingdom as of September 2026 and tracks 43,885 professional contacts across them, including 9,193 with verified work emails and 1,163 with mobile numbers. London is the largest hub.

This list covers cloud software development companies 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 8, 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 8, 2026 86% judged on-target in blind review

949Companies

43,885Contacts tracked

9,193Verified emails

1,163Mobile numbers

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The 25 largest cloud software development companies based in London, United Kingdom

Ranked by team size

Top 25 of 949 cloud software development companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 8, 2026. RevenueBase Smart Search rates how each company's information relates to cloud software development companies: 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	Endava	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	10001+	9,653 contacts →
	Indirect evidence “For over two decades, we have been harnessing technology to drive meaningful change.” Source: RevenueBase Database · checked Sep 8, 2026
2	K2 Partnering Solutions	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	1,001-5,000	1,417 contacts →
	Partial evidence “K2 Partnering Solutions is a global provider of unique end-to-end consultative solutions in the enterprise applications, AI, and cloud space.” Source: RevenueBase Database · checked Sep 8, 2026
3	KERV	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	501-1,000	742 contacts →
	Indirect evidence “Kerv exists to use the power of technology for good: for our customers, our people, our communities and the planet.” Source: RevenueBase Database · checked Sep 8, 2026
4	KIN Carta	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	5,001-10,000	400 contacts →
	Indirect evidence “Kin + Carta was acquired by Valtech in 2024.” Source: RevenueBase Database · checked Sep 8, 2026
5	Vertex Agility	Strong evidence	London, United KingdomHQ checked Sep 8, 2026	51-200	255 contacts →
	Strong evidence “Vertex Agility is your next Global Digital Consultancy, providing deep expertise in Cloud, Data, and Software to the biggest brands in the world and the most disruptive scale-ups.” Source: RevenueBase Database · checked Sep 8, 2026
6	The Adaptavist Group	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	1,001-5,000	254 contacts →
	Partial evidence “We are experts at delivering innovative software, tailored solutions, and quality services across some of the world's most trusted technology ecosystems, including Atlassian, AWS…” Source: RevenueBase Database · checked Sep 8, 2026
7	Flat Rock Technology	Strong evidence	London, United KingdomHQ checked Sep 8, 2026	201-500	231 contacts →
	Strong evidence “Since 2008, Flat Rock Technology, a software engineering, SI, Cloud DevOps, Cyber Security, and Customer Experience (CX) company, has been at the forefront of providing innovative…” Source: RevenueBase Database · checked Sep 8, 2026
8	Dreams Technologies, UK & India	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	201-500	221 contacts →
	Partial evidence “At Dreams Technologies, we’re more than software engineers, we’re digital transformation partners.” Source: RevenueBase Database · checked Sep 8, 2026
9	scrums.com	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	201-500	163 contacts →
	Partial evidence “Scrums.com is the Software Engineering Orchestration Platform (SEOP).” Source: RevenueBase Database · checked Sep 8, 2026
10	Opinov8	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	201-500	154 contacts →
	Indirect evidence “Winner of the Best AI Company Award by The Netty Awards · Headquartered in London, powered by a worldwide team of engineers across Europe, Egypt, and the Americas.” Source: RevenueBase Database · checked Sep 8, 2026
11	Daemon	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	51-200	145 contacts →
	Indirect evidence “Founded in 2007, Daemon is a technology consultancy with a mission to make the world a better place by creating movements that power digital transformation.” Source: RevenueBase Database · checked Sep 8, 2026
12	Synycs Group	Strong evidence	London, United KingdomHQ checked Sep 8, 2026	201-500	132 contacts →
	Strong evidence “Incorporated in 2014 and headquartered in the UK, Synycs Group is a CMMI Level 4 industry-leading & most reliable software and mobile app development company known for delivering…” Source: RevenueBase Database · checked Sep 8, 2026
13	Manras Technologies	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	51-200	130 contacts →
	Indirect 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 8, 2026
14	Mindpath	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	51-200	102 contacts →
	Indirect evidence “Welcome to Mindpath, where innovation meets excellence.” Source: RevenueBase Database · checked Sep 8, 2026
15	Adapt A Datapipe Company	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	201-500	98 contacts →
	Partial evidence “Adapt is a leading UK managed cloud services provider and integrator, enabling customers’ digital evolution.” Source: RevenueBase Database · checked Sep 8, 2026
16	Hybytes	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	201-500	79 contacts →
	Indirect evidence “Hybytes is an offshore/domestic solution provider for IT and Management to business and industry.” Source: RevenueBase Database · checked Sep 8, 2026
17	KLOIA	Strong evidence	London, United KingdomHQ checked Sep 8, 2026	51-200	75 contacts →
	Strong evidence “Kloia is an AWS Premier Tier Services Partner that specializes in DevOps/Cloud, Application Modernization, Software Testing and Generative AI.” Source: RevenueBase Database · checked Sep 8, 2026
18	Anya Consultancy Services	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	51-200	63 contacts →
	Indirect evidence “ACS is a fast-emerging IT service provider focuses on providing quality, innovative, cost effective IT support services.” Source: RevenueBase Database · checked Sep 8, 2026
19	Runibex	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	51-200	59 contacts →
	Indirect evidence “Runibex is a technology products company.” Source: RevenueBase Database · checked Sep 8, 2026
20	Cloudplexo	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	51-200	54 contacts →
	Partial evidence “CloudPlexo is a global technology consulting firm helping organizations transform, innovate, and build resilience through Cloud, AI, and Cybersecurity.” Source: RevenueBase Database · checked Sep 8, 2026
21	Blakyaks	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	51-200	51 contacts →
	Partial evidence “We support you at every stage of your cloud native transformation.” Source: RevenueBase Database · checked Sep 8, 2026
22	Altonexus	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	51 contacts →
	Partial evidence “Altonexus - Your Salesforce Success Partner OUR EXPERTISE- Salesforce Sales Cloud - Accelerate your sales cycle - Service Cloud - Deliver exceptional customer service - Non-profit…” Source: RevenueBase Database · checked Sep 8, 2026
23	Warrgyizmorsch	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	51-200	51 contacts →
	Indirect evidence “Tailored ERP, CRM & SaaS that automates your operations and fuels measurable growth.” Source: RevenueBase Database · checked Sep 8, 2026
24	Cognetiks Consulting	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	46 contacts →
	Partial evidence “We are a leading provider of cloud advisory services, cloud migration, DevOps, automation and cloud-managed services to organizations.” Source: RevenueBase Database · checked Sep 8, 2026
25	SKO Systems	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	51-200	45 contacts →
	Partial evidence “At SKO Systems, we engineer enterprise-grade software ecosystems designed for the unique, high-stakes realities of the maritime environment.” Source: RevenueBase Database · checked Sep 8, 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: cloud software development companies. 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 cloud software development companies.
Partial evidence: Its own public description names part of cloud software development companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cloud software development companies. 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 949 cloud software development companies based in London, United Kingdom

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Cloud software development companies based in London, United Kingdom at a glance

As of Sep 8, 2026

20.9%Verified-email coverage

2.7%Mobile-number coverage

46.2Average contacts per company

1-10Median size (employees)

130.0%Largest-city concentration · London

Sep 8, 2026Page data refreshed

Companies by employee count

1-10

529

11-50

303

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

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

Email last verified

Median 10.0d

8,5430–30

62531–60

461–90

190–180

20180+

Company record updated

Median 74.0d

00–30

15,15431–60

22,52961–90

4,53090–180

1,672180+

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 cloud software development companies, 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 “cloud software development companies”. 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 cloud software development companies), 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 cloud software development companies, 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, 9,193 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 8, 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.

Cloud software development companies by metro in the United Kingdom

Cloud software development companies in London1234
Cloud software development companies in Manchester120
Cloud software development companies in Birmingham57
Cloud software development companies in Bristol43
Cloud software development companies in Leeds42
Cloud software development companies in Glasgow38
Cloud software development companies in Edinburgh28

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 cloud software development companies, 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 cloud software development companies are there based in London, United Kingdom?

RevenueBase identified 949 cloud software development companies 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?

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

Which city has the most cloud software development companies?

London leads with 1234 headquartered companies, followed by Manchester (120) and Birmingham (57).

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 9,193 verified decision-maker contacts tracked across these 949 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 8, 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.