Company lists · Data refreshed September 2026

Top 25 Full stack development companies based in the United Kingdom

Name: Full stack development companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 299 companies tracked

RevenueBase identified 299 full stack development companies headquartered in the United Kingdom as of September 2026 and tracks 1,551 professional contacts across them, including 203 with verified work emails. London is the largest hub.

This list covers full stack development 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 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 19, 2026 86% judged on-target in blind review

299Companies

1,551Contacts tracked

203Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest full stack development companies based in the United Kingdom

Ranked by team size

Top 25 of 299 full stack development companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to full stack 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	MAD Devs LLC	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	92 contacts →
	Strong evidence “Mad Devs is a London-headquartered full-stack IT company developing enterprise-grade software solutions for businesses in finance, transport and logistics, security, education…” Source: RevenueBase Database · checked Sep 19, 2026
2	Aircury	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	55 contacts →
	Strong evidence “Aircury offers high quality software development for the education and non-profit sectors We specialise in- Full-stack application development for web and mobile- API and…” Source: RevenueBase Database · checked Sep 19, 2026
3	Devgrid	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	39 contacts →
	Partial evidence “DevGrid was Founded in 2015 by a group of seasoned tech entrepreneurs on a mission to make outsourced product development a positive and productive experience.” Source: RevenueBase Database · checked Sep 19, 2026
4	CK Media House	Strong evidence	Chilton Polden, United KingdomHQ checked Sep 19, 2026	n/a	35 contacts →
	Strong evidence “Currently based near Bristol UK with over 10 years experience in full-stack web application development working with businesses of all sizes including start-ups, creative…” Source: RevenueBase Database · checked Sep 19, 2026
5	ARCH	Indirect evidence	Gateshead, United KingdomHQ checked Sep 19, 2026	11-50	30 contacts →
	Indirect evidence “We design and build apps, websites & and backend software for SMEs and disruptive startups.” Source: RevenueBase Database · checked Sep 19, 2026
6	Topdevs Corp	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	29 contacts →
	Strong evidence “Mobile & Web Digital Solutions for Startups & Businesses Count on TopDevs full-cycle mobile app and web development outsourcing services or hire the IT experts you need to augment…” Source: RevenueBase Database · checked Sep 19, 2026
7	Software Planet Group	Indirect evidence	Guildford, United KingdomHQ checked Sep 19, 2026	51-200	29 contacts →
	Indirect evidence “Software Planet Group (SPG) is a UK-based custom software company out of Guildford.” Source: RevenueBase Database · checked Sep 19, 2026
8	Elev8	Partial evidence	Swindon, United KingdomHQ checked Sep 19, 2026	1-10	20 contacts →
	Partial evidence “Elev8AI is a global leader in software development, providing a comprehensive suite of services tailored to meet the evolving needs of businesses across various industries.” Source: RevenueBase Database · checked Sep 19, 2026
9	Alisco IT	Partial evidence	Liverpool, United KingdomHQ checked Sep 19, 2026	1-10	18 contacts →
	Partial evidence “Web based software development.” Source: RevenueBase Database · checked Sep 19, 2026
10	TOIMI	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	15 contacts →
	Partial evidence “Toimi is a leader in web and mobile development, with more than 8 years of experience in crafting software solutions for small to medium-sized businesses and enterprise-level…” Source: RevenueBase Database · checked Sep 19, 2026
11	SI Digital	Indirect evidence	Southsea, United KingdomHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “We design and build websites and apps that bring clarity, efficiency, and brand impact to ambitious global businesses.” Source: RevenueBase Database · checked Sep 19, 2026
12	Kloudstack	Indirect evidence	Reading, United KingdomHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “Welcome KloudStack!” Source: RevenueBase Database · checked Sep 19, 2026
13	Frugalnova	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “Frugalnova is a dominant name in the world of Website and Mobile Application development.” Source: RevenueBase Database · checked Sep 19, 2026
14	International Development Resources LTD	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	11 contacts →
	Strong evidence “International Development Resources is a US and UK-based software development company offering full-stack digital solutions for business and staff augmentation through outsourcing…” Source: RevenueBase Database · checked Sep 19, 2026
15	DRS Software	Partial evidence	Leeds, United KingdomHQ checked Sep 19, 2026	1-10	10 contacts →
	Partial evidence “DRS is a specialist software development and consulting firm focused on high performance web applications, data analytics and application modernisation.” Source: RevenueBase Database · checked Sep 19, 2026
16	KEW Consulting	Indirect evidence	Pembroke Dock, United KingdomHQ checked Sep 19, 2026	1-10	7 contacts →
	Indirect evidence “Kew Consulting helps busy individuals and companies realise their potential.” Source: RevenueBase Database · checked Sep 19, 2026
17	SPYDR	Indirect evidence	Bristol, United KingdomHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “At Spydr, we design and develop high-performing digital solutions that help ambitious businesses accelerate growth and stand out in their industries.” Source: RevenueBase Database · checked Sep 19, 2026
18	Protohype	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	6 contacts →
	Strong evidence “Think of us as your product partner, your product studio, or as your full-stack app development agency.” Source: RevenueBase Database · checked Sep 19, 2026
19	Webstartiom.com LTD	Indirect evidence	Douglas, United KingdomHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “At Webstartiom, we create custom software solutions to meet your unique business needs.” Source: RevenueBase Database · checked Sep 19, 2026
20	The Code GUY	Strong evidence	Saffron Walden, United KingdomHQ checked Sep 19, 2026	1-10	4 contacts →
	Strong evidence “Full stack software development for start-ups and small businesses.” Source: RevenueBase Database · checked Sep 19, 2026
21	Full Metal	Partial evidence	Northampton, United KingdomHQ checked Sep 19, 2026	11-50	4 contacts →
	Partial evidence “Full Metal Software's mission is to make a difference to people and their businesses by providing all our customers with the best web applications and associated services to meet…” Source: RevenueBase Database · checked Sep 19, 2026
22	Smart BEE Software Solutions LTD	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	4 contacts →
	Strong evidence “SmartBee,(Smart Bee Software Solutions Ltd.) majorly focuses on consultancy services for Architectural Software Designs and Full-Stack Software Development in technologies like…” Source: RevenueBase Database · checked Sep 19, 2026
23	Devopa LTD	Partial evidence	Bourne, United KingdomHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “Devopa provides web development services to both local and global businesses.” Source: RevenueBase Database · checked Sep 19, 2026
24	Starbit Digital	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “Starbit has been carefully crafting innovative websites since 2005.” Source: RevenueBase Database · checked Sep 19, 2026
25	Tech Chaps	Partial evidence	Leicester, United KingdomHQ checked Sep 19, 2026	51-200	3 contacts →
	Partial evidence “We provide comprehensive software development and continuous support throughout the entire development process, from brainstorming to integration with your existing software to…” Source: RevenueBase Database · checked Sep 19, 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: full stack 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 full stack development companies.
Partial evidence: Its own public description names part of full stack development companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name full stack 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 299 full stack development companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 203 reachable decision-makers.

Free signup · no credit card

View the full list →

Full stack development companies based in the United Kingdom at a glance

As of Sep 19, 2026

13.1%Verified-email coverage

5.2Average contacts per company

1-10Median size (employees)

40.8%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

218

11-50

51-200

201-500

501-1,000

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 299 companies.

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 full stack 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 the United Kingdom whose own description of what they do matches “full stack 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 full stack 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 full stack development 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 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, 203 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 19, 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.

Full stack development companies by metro

Full stack development companies in London122

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 full stack 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 full stack development companies are there based in the United Kingdom?

RevenueBase identified 299 full stack development 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?

MAD Devs LLC, headquartered in London, tops this list with the largest team on record.

Which city has the most full stack development companies?

London leads with 122 headquartered companies, followed by Manchester (13) and Birmingham (10).

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 203 verified decision-maker contacts tracked across these 299 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 19, 2026.

Ready to reach these companies? Verified emails and direct dials for all 299 full stack development companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Full stack development companies by geography

Browse the directory

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.