Company lists · Data refreshed September 2026

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

Name: Mobile app software 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 5, 2026 449 companies tracked

RevenueBase identified 449 mobile app software companies headquartered in London, United Kingdom as of September 2026 and tracks 6,171 professional contacts across them, including 448 with verified work emails. London is the largest hub.

This list covers mobile app software 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

449Companies

6,171Contacts tracked

448Verified emails

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

Ranked by team size

Top 25 of 449 mobile app software companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names mobile app software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	DotsquaresPartial evidence	London, United KingdomHQ checked Sep 5, 2026	501-1,000	1,581
	“We leverage the latest web and mobile technologies to build, grow and support your business.” Source: company website · checked Sep 5, 2026
2	GismartStrong evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	326
	“Gismart is a value-driven mobile app developer with a strong presence in the Health & Wellness, Utilities, and Music app markets.” Source: company website · checked Sep 5, 2026
3	KRIFYStrong evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	221
	“Krify is a results-driven technology company specializing in crafting user-centric mobile apps, web applications, and software solutions.” Source: company website · checked Sep 5, 2026
4	Synycs GroupStrong evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	132
	“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: company website · checked Sep 5, 2026
5	Satva SoftechIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	53
	“Established in 2015, SATVA Softech has carved a distinguished niche in the global technology landscape.” Source: company website · checked Sep 5, 2026
6	LimeupPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	42
	“Limeup is an application & software development company.” Source: company website · checked Sep 5, 2026
7	TaramsysStrong evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	39
	“Your premium software development partner for mobile, white label & enterprise applications.” Source: company website · checked Sep 5, 2026
8	Avamae Software Solutions LTDStrong evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	35
	“AVAMAE is a London-based product development agency, building bespoke mobile, software and web applications since 2011.” Source: company website · checked Sep 5, 2026
9	KernelicsStrong evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	35
	“Kernelics is a passionate team of web and mobile software developers, product managers, designers, and QA engineers.” Source: company website · checked Sep 5, 2026
10	Pocket APPStrong evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	31
	“We are an independent mobile UI & UX app development company.” Source: company website · checked Sep 5, 2026
11	ZentixPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	30
	“ZentixSoft is a UK-based software development company helping businesses grow faster with AI, automation, and custom software.” Source: company website · checked Sep 5, 2026
12	44pixelsStrong evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	27
	“44pixels is a London-based mobile app studio passionate about creating beautiful, engaging experiences that harness the power of technology and AI.” Source: company website · checked Sep 5, 2026
13	FlipletPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	26
	“Now anyone can create software with AI.” Source: company website · checked Sep 5, 2026
14	KeytotechPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	22
	“At KeyToTech, we turn ideas into scalable software products.” Source: company website · checked Sep 5, 2026
15	Techcurl Media SolutionsPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	21
	“Techcurl is a leading agile development company specialising in Web and mobile development helping businesses deliver projects on time and budget.” Source: company website · checked Sep 5, 2026
16	Lloyds Knight InternationalPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	21
	“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: company website · checked Sep 5, 2026
17	Devsstream LimitedPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	20
	“DevsStream provides software development solutions and services all over the world.” Source: company website · checked Sep 5, 2026
18	Smile MachinePartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	19
	“We're digital innovators with a passion for everything mobile.” Source: company website · checked Sep 5, 2026
19	SoftexpoitStrong evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	18
	“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: company website · checked Sep 5, 2026
20	OTPartial evidence	London, United KingdomHQ checked Sep 5, 2026	1-10	18
	“OT helps businesses grow their brand by building digital applications for a mobile and connected future.” Source: company website · checked Sep 5, 2026
21	APP GenieStrong evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	17
	“App Genie (appg.co) is a mobile app development agency founded in 2022, with its product team based in Istanbul, Türkiye.” Source: company website · checked Sep 5, 2026
22	ProntxPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	15
	“ProntX isn't just software development, it's partnership in innovation.” Source: company website · checked Sep 5, 2026
23	TOIMIStrong evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	15
	“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: company website · checked Sep 5, 2026
24	Intelligent MobilePartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	12
	“WHO WE ARE We are Intelligent Mobile – a team of specialists that deliver customer centric, mobile focused digital solutions.” Source: company website · checked Sep 5, 2026
25	Avantao TechnologiesIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	12
	“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: company website · checked Sep 5, 2026

Showing 25 of 449 mobile app software companies based in London, United Kingdom

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

As of Sep 5, 2026

1-10Median size (employees)

LondonLargest hub · 449 HQs

Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

268

11-50

148

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 this city, so it is reported there. Company counts and contact totals on this page are exact for London, over 449 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 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 London, United Kingdom whose own description of what they do matches “mobile app 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 mobile app software 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 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, 448 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 5, 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 software companies by metro in the United Kingdom

Mobile app software companies in London449
Mobile app software companies in Manchester53
Mobile app software companies in Birmingham27

Frequently asked

How many mobile app software companies are there based in London, United Kingdom?

RevenueBase identified 449 mobile app software 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?

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

Which city has the most mobile app software companies?

London leads with 449 headquartered companies, followed by Manchester (53) and Birmingham (27).

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 448 verified decision-maker contacts tracked across these 449 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 5, 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.