Company lists · Data refreshed October 2026

Top 25 Mobile app development companies based in London, United Kingdom

Name: Mobile app 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 Oct 1, 2026 423 companies tracked

Our directory lists 423 mobile app development companies based in London, United Kingdom, with contact data for 5,719 professionals and 358 business email addresses. Across the United Kingdom, London is the largest hub for this category.

Mobile app development companies design, build, test, maintain, and update applications for mobile devices and operating systems. This list covers companies that provide mobile app development services, including strategy, design, engineering, testing, maintenance, or related delivery support. Ranked by team size, largest first. Data current as of October 1, 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 Oct 1, 2026 86% judged on-target in blind review

423Companies

5,719Contacts tracked

358Verified emails

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The 25 largest mobile app development companies based in London, United Kingdom

Ranked by team size

Top 25 of 423 mobile app development companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Oct 1, 2026. RevenueBase Smart Search rates how each company's information relates to mobile app 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	Dotsquares	Partial evidence	London, United KingdomHQ checked Oct 1, 2026	501-1,000	1,581 contacts →
	Partial evidence “We leverage the latest web and mobile technologies to build, grow and support your business.” Source: RevenueBase Database · checked Oct 1, 2026
2	KRIFY	Strong evidence	London, United KingdomHQ checked Oct 1, 2026	51-200	221 contacts →
	Strong evidence “Krify is a results-driven technology company specializing in crafting user-centric mobile apps, web applications, and software solutions.” Source: RevenueBase Database · checked Oct 1, 2026
3	Synycs Group	Strong evidence	London, United KingdomHQ checked Oct 1, 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 Oct 1, 2026
4	Satva Softech	Indirect evidence	London, United KingdomHQ checked Oct 1, 2026	51-200	53 contacts →
	Indirect evidence “Established in 2015, SATVA Softech has carved a distinguished niche in the global technology landscape.” Source: RevenueBase Database · checked Oct 1, 2026
5	Limeup	Partial evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	42 contacts →
	Partial evidence “Limeup is an application & software development company.” Source: RevenueBase Database · checked Oct 1, 2026
6	Taramsys	Strong evidence	London, United KingdomHQ checked Oct 1, 2026	51-200	39 contacts →
	Strong evidence “Your premium software development partner for mobile, white label & enterprise applications.” Source: RevenueBase Database · checked Oct 1, 2026
7	Avamae Software Solutions LTD	Strong evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	35 contacts →
	Strong evidence “AVAMAE is a London-based product development agency, building bespoke mobile, software and web applications since 2011.” Source: RevenueBase Database · checked Oct 1, 2026
8	Kernelics	Partial evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	35 contacts →
	Partial evidence “Kernelics is a passionate team of web and mobile software developers, product managers, designers, and QA engineers.” Source: RevenueBase Database · checked Oct 1, 2026
9	Pocket APP	Strong evidence	London, United KingdomHQ checked Oct 1, 2026	51-200	31 contacts →
	Strong evidence “We are an independent mobile UI & UX app development company.” Source: RevenueBase Database · checked Oct 1, 2026
10	Zentix	Partial evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	30 contacts →
	Partial evidence “ZentixSoft is a UK-based software development company helping businesses grow faster with AI, automation, and custom software.” Source: RevenueBase Database · checked Oct 1, 2026
11	Topdevs Corp	Strong evidence	London, United KingdomHQ checked Oct 1, 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 Oct 1, 2026
12	44pixels	Strong evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	27 contacts →
	Strong evidence “44pixels is a London-based mobile app studio passionate about creating beautiful, engaging experiences that harness the power of technology and AI.” Source: RevenueBase Database · checked Oct 1, 2026
13	Keytotech	Indirect evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	22 contacts →
	Indirect evidence “At KeyToTech, we turn ideas into scalable software products.” Source: RevenueBase Database · checked Oct 1, 2026
14	Techcurl Media Solutions	Strong evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	21 contacts →
	Strong evidence “Techcurl is a leading agile development company specialising in Web and mobile development helping businesses deliver projects on time and budget.” Source: RevenueBase Database · checked Oct 1, 2026
15	Lloyds Knight International	Partial evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	21 contacts →
	Partial evidence “Lloyds Knight International brings together the best dedicated iOS, Android, and web app developers, so you can outsource your project and get a top-quality product.” Source: RevenueBase Database · checked Oct 1, 2026
16	Devsstream Limited	Partial evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	20 contacts →
	Partial evidence “DevsStream provides software development solutions and services all over the world.” Source: RevenueBase Database · checked Oct 1, 2026
17	Smile Machine	Partial evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	19 contacts →
	Partial evidence “We're digital innovators with a passion for everything mobile.” Source: RevenueBase Database · checked Oct 1, 2026
18	Softexpoit	Strong evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	18 contacts →
	Strong evidence “Softexpoit's team of experts combines technical expertise and creativity to develop custom software, mobile app, and web app solutions that meet your specific business/official…” Source: RevenueBase Database · checked Oct 1, 2026
19	APP Genie	Strong evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	17 contacts →
	Strong evidence “App Genie (appg.co) is a mobile app development agency founded in 2022, with its product team based in Istanbul, Türkiye.” Source: RevenueBase Database · checked Oct 1, 2026
20	Prontx	Partial evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	15 contacts →
	Partial evidence “ProntX isn't just software development, it's partnership in innovation.” Source: RevenueBase Database · checked Oct 1, 2026
21	TOIMI	Strong evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	15 contacts →
	Strong 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 Oct 1, 2026
22	Intelligent Mobile	Partial evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	12 contacts →
	Partial evidence “WHO WE ARE We are Intelligent Mobile – a team of specialists that deliver customer centric, mobile focused digital solutions.” Source: RevenueBase Database · checked Oct 1, 2026
23	Avantao Technologies	Indirect evidence	London, United KingdomHQ checked Oct 1, 2026	51-200	12 contacts →
	Indirect evidence “Crafting next-gen solutions for a digital world We're more than just problem solvers - we're passionate technology enthusiasts on a mission to empower businesses and individuals…” Source: RevenueBase Database · checked Oct 1, 2026
24	Frugalnova	Strong evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	11 contacts →
	Strong evidence “Frugalnova is a dominant name in the world of Website and Mobile Application development.” Source: RevenueBase Database · checked Oct 1, 2026
25	Echoapps360	Strong evidence	London, United KingdomHQ checked Oct 1, 2026	11-50	11 contacts →
	Strong evidence “We are a London-based web and mobile app development agency.” Source: RevenueBase Database · checked Oct 1, 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: mobile app 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 mobile app development companies.
Partial evidence: Its own public description names part of mobile app development companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name mobile app 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 423 mobile app development companies based in London, United Kingdom

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Mobile app development companies based in London, United Kingdom at a glance

As of Oct 1, 2026

6.3%Verified-email coverage

13.5Average contacts per company

1-10Median size (employees)

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

253

11-50

140

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 423 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 mobile app 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 “mobile app 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 mobile app 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 mobile app 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, 358 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 October 1, 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.

Mobile app development companies by metro in the United Kingdom

Mobile app development companies in Manchester47

Frequently asked

How many mobile app development companies are in the directory?

The directory contains 423 mobile app development companies based in London, United Kingdom.

Which city in the United Kingdom has the most mobile app development companies?

London leads the United Kingdom with 423 headquartered companies, followed by Manchester (47) and Birmingham (26).

What services do mobile app development companies provide?

Mobile app development companies design, build, test, maintain, and update applications for mobile devices and operating systems. Services may also include product strategy, user experience design, and app store support.

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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.