Company lists · Data refreshed September 2026

Top 25 Mobile app developer staffing based in London, United Kingdom

Name: Mobile app developer staffing based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 277 companies tracked

RevenueBase identified 277 mobile app developer staffing headquartered in London, United Kingdom as of September 2026 and tracks 5,899 professional contacts across them, including 1,152 with verified work emails and 493 with mobile numbers. Across the United Kingdom, London is the largest hub for this category.

This list covers mobile app developer staffing 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 13, 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 13, 2026 86% judged on-target in blind review

277Companies

5,899Contacts tracked

1,152Verified emails

493Mobile numbers

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The 25 largest mobile app developer staffing based in London, United Kingdom

Ranked by team size

Top 25 of 277 mobile app developer staffing based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to mobile app developer staffing: 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	Harvey Nash	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	5,001-10,000	1,248 contacts →
	Indirect evidence “We’re Harvey Nash, and we build amazing technology and digital teams.” Source: RevenueBase Database · checked Sep 13, 2026
2	GCS	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	568 contacts →
	Indirect evidence “For over 30 years, GCS has been at the forefront of digital transformation, building vast global communities of innovators and placing them in businesses shaping tomorrow's world.” Source: RevenueBase Database · checked Sep 13, 2026
3	LA Fosse	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	396 contacts →
	Indirect evidence “La Fosse: Empowering people and businesses to thrive in a tech-driven world We are La Fosse.” Source: RevenueBase Database · checked Sep 13, 2026
4	Explore Group	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	143 contacts →
	Indirect evidence “The Explore Group has been helping companies recruit top talent in the ever-evolving world of technology since 2005.” Source: RevenueBase Database · checked Sep 13, 2026
5	Synycs Group	Strong evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
6	Skillrecruit	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	125 contacts →
	Indirect evidence “Skilliantech Ltd, trading as “SkillRecruit”, is a specialist IT and Engineering recruitment agency delivering comprehensive coverage of recruitment services across all industries…” Source: RevenueBase Database · checked Sep 13, 2026
7	Square ONE Resources	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	108 contacts →
	Indirect evidence “With over 25 years in the technology recruitment sector, Square One is an award-winning specialist recruitment agency.” Source: RevenueBase Database · checked Sep 13, 2026
8	SCEDE	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	64 contacts →
	Indirect evidence “Scede is a trusted scaling partner for tech companies globally, offering a breadth of talent acquisition, people operations and training services, designed to solve key growth…” Source: RevenueBase Database · checked Sep 13, 2026
9	Signify Technology	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	61 contacts →
	Indirect evidence “We aim to build exceptional teams in the tech space, focusing on two core engineering specialisms: Advanced Software Engineering and AI, ML, & Data Engineering.” Source: RevenueBase Database · checked Sep 13, 2026
10	Creative Personnel	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	43 contacts →
	Indirect evidence “Creative Personnel is now part of Auxo Talent under the specialism of Auxo Technology.” Source: RevenueBase Database · checked Sep 13, 2026
11	Falcon Smart IT Falconsmartit	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	41 contacts →
	Indirect evidence “Global Specialist IT Recruitment Agency Leader in Digital Transformation, Business IT Solutions and IT Recruitment Specialists Falcon Smart IT is a Specialist recruitment agency…” Source: RevenueBase Database · checked Sep 13, 2026
12	Digitech Resourcing	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	40 contacts →
	Indirect evidence “Here at DigiTech Resourcing we focus on delivering the cream of digital talent across Europe and US.” Source: RevenueBase Database · checked Sep 13, 2026
13	Few&far	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	38 contacts →
	Partial evidence “We're a top-rated recruitment company for product development teams with over 300 5* Google reviews.” Source: RevenueBase Database · checked Sep 13, 2026
14	Stallions Technologies	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	35 contacts →
	Indirect evidence “At Stallions Technologies, we passionately believe that we are successful in delivering excellence to our clients because we deliberately seek to hire 'Brilliant' people.” Source: RevenueBase Database · checked Sep 13, 2026
15	Kernelics	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	35 contacts →
	Strong evidence “Kernelics is a passionate team of web and mobile software developers, product managers, designers, and QA engineers.” Source: RevenueBase Database · checked Sep 13, 2026
16	Topdevs Corp	Strong evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
17	GS Group	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	26 contacts →
	Indirect evidence “Founded in 2021 with a mission to redefine how tech and engineering talent is sourced and delivered, GS Group has rapidly evolved into a trusted global hiring and delivery partner.” Source: RevenueBase Database · checked Sep 13, 2026
18	Dune Technology LTD	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	25 contacts →
	Partial evidence “We can help you build your dream development team.” Source: RevenueBase Database · checked Sep 13, 2026
19	Beyondstaff	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	24 contacts →
	Indirect evidence “Beyond Staff is a globally dispersed team supporting businesses through the most cost-efficient and flexible hiring solution.” Source: RevenueBase Database · checked Sep 13, 2026
20	Formula Recruitment	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	23 contacts →
	Indirect evidence “Welcome to technology recruitment for the Modern Age.” Source: RevenueBase Database · checked Sep 13, 2026
21	Keytotech	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	22 contacts →
	Indirect evidence “At KeyToTech, we turn ideas into scalable software products.” Source: RevenueBase Database · checked Sep 13, 2026
22	Lloyds Knight International	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	21 contacts →
	Strong 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 Sep 13, 2026
23	Reintech	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	19 contacts →
	Indirect evidence “Reintech – The Recruiting Partner High-Growth Tech Teams Rely On We help companies build exceptional engineering teams through two core services: Recruiting Embedded recruiting…” Source: RevenueBase Database · checked Sep 13, 2026
24	Smile Machine	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	19 contacts →
	Partial evidence “We're digital innovators with a passion for everything mobile.” Source: RevenueBase Database · checked Sep 13, 2026
25	TTC Group Tech Talent Consulting	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	19 contacts →
	Indirect evidence “TTC Group is a specialist technology recruitment agency, connecting exceptional tech talent with companies across the globe.” Source: RevenueBase Database · checked Sep 13, 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 developer staffing. 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 developer staffing.
Partial evidence: Its own public description names part of mobile app developer staffing, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name mobile app developer staffing. 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 277 mobile app developer staffing based in London, United Kingdom

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Mobile app developer staffing based in London, United Kingdom at a glance

As of Sep 13, 2026

19.5%Verified-email coverage

8.4%Mobile-number coverage

21.3Average contacts per company

1-10Median size (employees)

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

160

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Freshness & accuracy

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

Email last verified

Median 16.0d

8940–30

24731–60

361–90

290–180

6180+

Company record updated

Median 78.0d

00–30

1,93731–60

2,95561–90

75490–180

253180+

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 developer staffing, 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 developer staffing”. 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 developer staffing), 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 developer staffing, 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, 1,152 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 13, 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.

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 mobile app developer staffing, 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 mobile app developer staffing are there based in London, United Kingdom?

RevenueBase identified 277 mobile app developer staffing 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?

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

Which city in the United Kingdom has the most mobile app developer staffing?

London leads the United Kingdom with 116 headquartered companies, followed by Manchester (18) and Edinburgh (5).

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 1,152 verified decision-maker contacts tracked across these 277 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 13, 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.