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Top Mobile App Development Companies in the UK

11 of 40 IT service providers ranked on evidence in the Q4 2026 edition.

Mobile app development covers applications built for phones and tablets, whether native to one platform, cross-platform from a shared codebase, or a web application wrapped for the stores. All three are sold under this heading and they have materially different costs, both to build and to keep running.

The recurring surprise for buyers is that shipping is not the end of the spend. Both stores change their requirements on their own schedule, and an app that is not updated will eventually stop being accepted or stop working. Ask what the maintenance arrangement is before comparing build quotes, because a lower build price with no maintenance path is not the cheaper option.

Want your company here?

Between them, the 40 IT service providers on this page cover web development (36), web design (30), android (27) and iOS app (26). 40 of them have written a profile you can read before you get in touch.

TrustList ranks more than 400 mobile app development companies in the UK, ordered on client reviews and profile quality, never on payment. At the top right now: Zepto Systems ltd, Eton Digital Limited and Codezeros.

What to check before you shortlist a mobile app development company

Native or cross-platform, and why for your app
Who owns the app store accounts, the backend and the APIs
Support after launch, including updates for new operating system versions
How analytics, privacy consent and data storage are handled

TrustList ranking

Q4 2026 edition

11 of 40 IT service providers ranked on evidence held on 12 October 2026: client reviews, vetting, awards and facts each business states on its own website, which we read and date. Nobody pays to be placed.

Positions are fixed for the quarter; the next edition is due in January 2027.

How this is ranked About this edition

All IT service providers 11 ranked SMEs 10 ranked

Filter by fitbudget, engagement, size and more

Listings marked Sponsored are promoted by TrustList. They are scored like every other listing and keep the position they earn.

Sasken Technologies Limited
Web Development · Web Design · iOS App · Also in India
Sasken Technologies Limited is an engineering services company working on products and digital systems for technology makers.
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Why #1: Office in United Kingdom · Founded 1989 · ISO 9001, ISO 27001, professional accreditation · Team of 2,000+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Indigo Multimedia
Search Engine Optimization · Social Media Marketing · Web Development
Indigo Multimedia is a digital agency based in Newcastle that opened in 1995.
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Why #2: Based in Newcastle · Founded 1995, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
GCD Technologies
Web Development · Web Design · E-Commerce Development
GCD Technologies is a software and digital product company based in Northern Ireland.
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Why #3 (shared): Based in Northern Ireland, with work shown in Belfast · Founded 1999, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
AtomicMedia
Search Engine Optimization · Web Development · iOS App
AtomicMedia is a UK software development agency and technology consultancy that began in 1999.
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Why #3 (shared): Based in United Kingdom · Founded 1999, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Root Info Solutions
Web Development · Web Design · iOS App
Root Info Solutions is a digital services firm covering development, testing, integration and maintenance.
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Why #5 (shared): Office in United Kingdom · In business 20+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
MyOxygen Ltd
Web Design · iOS App · UI/UX Design
MyOxygen Ltd is a digital consultancy based in Bristol, UK, with a background in mobile applications.
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Why #5 (shared): Based in Bristol, UK · In business 20+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Techquity Ltd
Web Development · Web Design · E-Commerce Development
Techquity Ltd is a UK agency that builds ecommerce platforms and bespoke software.
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Why #5 (shared): Based in United Kingdom · In business 20+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
RG Infotech
Web Development · Web Design · iOS App · Also in India
RG Infotech is an IT solutions company that began as a web design and development firm in India. Its website now lists offices in the USA, UK, India, Canada and the UAE.
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Why #8: Office in United Kingdom · Founded 2007, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Memcrab
Web Development · Web Design · iOS App · Also in Vinnytsia, Ukraine
Memcrab is an IT outsourcing company that develops web, iOS and Android products from the first idea to production systems.
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Why #9: Address in United Kingdom · Founded 2010, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Sonin App Development
Web Development · Web Design · iOS App
Sonin App Development, now trading as Sonin, is a digital product agency that takes products from discovery to a live, optimised launch.
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Why #10: Address in United Kingdom · In business 15+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
SBL Knowledge services Ltd
Web Development · iOS App · React Native · Also in Bengaluru, India
SBL Knowledge services Ltd is a technology and business process company that has worked since 2005.
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Why #11: Office in United Kingdom · ISO 27001, professional accreditation, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Also listed, not yet ranked. We hold nothing checkable on these yet that ranks them here: no client review, vetting, award, expert review, or fact stated on their own website (and on a place ranking, where they are based). They follow in order of their TrustList Score. How TrustList ranks · Get vetted, free
Abbacus Technologies
Web Development · Web Design · iOS App
Abbacus Technologies is a web and mobile application development company.
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On record: In business 16+ years · ISO 9001 · Client numbers stated on its own website, as stated on its own website, read 5 Oct 2026
Strawberrysoup
Social Media Marketing · Web Development · Web Design
Strawberrysoup is a digital agency that designs and builds websites and apps, and promotes them online. It was set up in 2005 and has a team of about twenty.
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On record: Founded 2005 · Team of 20+, as stated on its own website, read 5 Oct 2026
stickee
Web Development · Web Design · UI/UX Design
Stickee is a technology agency that builds software and digital services.
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On record: Founded 2001, as stated on its own website, read 5 Oct 2026
Pulselive
Search Engine Optimization · Web Development · Web Design
Pulselive is a sports technology company that creates and runs digital platforms for sporting organisations.
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On record: In business 10+ years, as stated on its own website, read 5 Oct 2026
Codezeros
Mobile Platforms · Staff Augmentation · IoT · Also in Washington and California
Codezeros is a top Blockchain solution and service provider company that reinvents business with Blockchain solutions.
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Toru Digital
Web Development · Web Design · iOS App
Discovery, UX/UI Design, Branding, Consultancy, Web Development, Apps, Integrations, Cloud, Analytics, SEO, Support and Maintenance, KPI Optimisation.
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On record: Address in United Kingdom
Zepto Systems ltd
Sponsored
Custom Software Development · Web Development · Web Design · Also in London and Islamabad
We are an IT service company providing full-scale Software Development, Bespoke Solutions, Cyber Security, Managed Project Development and Remote Developers to our clients…
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On record: Address in United Kingdom
20thFloor Techease
Search Engine Optimization · Web Design · iOS App · Also in Pakistan
20thFloor Techease is a software company working on mobile and web projects across many platforms, hardware types and programming languages.
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On record: Office in United Kingdom
Appentus Technologies
Web Development · iOS App · UI/UX Design · Also in India
Appentus Technologies builds mobile apps and websites. Its stored profile lists branches in India, the UK, the USA and the UAE.
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On record: Office in United Kingdom
Aymz Tech
Search Engine Optimization · Web Development · Web Design · Also in United States of America
Aymz Tech is an online design agency based in the United States and Great Britain.
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On record: Based in United States and Great Britain
Casperon Technologies Private Ltd
Web Development · Web Design · E-Commerce Development · Also in Chennai
Casperon Technologies Private Ltd is a software company building websites, mobile applications, business intelligence tools and Internet of Things products.
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On record: Office in United Kingdom
Code Tank
Web Development · Web Design · iOS App
Code Tank designs and builds online software. Its range runs from mobile apps and small-business websites to back-end management systems.
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Eton Digital Limited
Web Development · Web Design · UI/UX Design
Eton Digital Limited is a digital design and development agency. It has an office in London and two in Serbia, in Novi Sad and Nis.
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On record: Based in London, Novi Sad and Nis

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How many mobile app development companies are there in the UK?

412 companies on TrustList offer mobile app development and are based in the UK. That makes the UK the number 3 mobile app development market we rank, after the USA, India.

How is this ranking worked out?

Each firm's position comes from its client reviews and its profile, blended into one score:

Rating, smoothed so a single five-star review cannot outrank a firm with hundreds of good ones
Review volume, with diminishing returns
Profile completeness: the details a buyer needs to judge the firm
Earned trust: verification and awards, as a small lift

No firm can pay for a position. Sponsored listings are labelled and shown apart from this list. How rankings work

What else do firms in the UK offer?

We also rank web development (1,531), web design (1,385) and IT services (871) in the UK.

Mobile App Development in other countries

Other services in the UK

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Top Mobile App Development Companies in the UK

Sasken Technologies Limited

Indigo Multimedia

GCD Technologies

AtomicMedia

Root Info Solutions

MyOxygen Ltd

Techquity Ltd

RG Infotech

Memcrab

Sonin App Development

SBL Knowledge services Ltd

Abbacus Technologies

Strawberrysoup

stickee

Pulselive

Codezeros

Toru Digital

Zepto Systems ltd

20thFloor Techease

Appentus Technologies

Aymz Tech

Casperon Technologies Private Ltd

Code Tank

Eton Digital Limited