Rankings Updated : January, 2026

Top Mobile App Development Companies in London

Rankings Updated : January, 2026

4.9 (Average Rating)
How do we feature companies?

A report by RSM UK stated that London witnessed a rise of more than 26% in tech companies founded in 2023. That’s over 32K new firms coming into existence compared to 2022. So, in your search for the top mobile app development companies in London, you’re facing a sea of self-proclaimed IT leaders. All of these firms will claim to be innovative, agile, and user-centric. It’s noise, but something that large markets can’t avoid.

List of the Top Mobile App Development Companies in London

105 Companies

InStandart

Enterprise-Grade Software Solutions with SMB Scalability
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About

InStandart is a mobile app development company that partners with businesses of all sizes to build digital products. Focusing on sectors such as Travel & Tourism, Utilities, Real Estate, the firm delivers custom app development services tailored to business goals. Leveraging their technical expertise in iOS and Android app development, they deliver customized solutions that enhance digital presence and improve ROI. [View InStandart profile ]

Service Line
10% Mobile App Development 15% IT Staff Augmentation 10% UX/UI Design 10% Web Design 10% Custom Software Development 10% Web Development 10% E-Commerce Development 10% Application Testing 10% Cybersecurity 5% Artificial Intelligence
  • 10% Mobile App Development
Industries
15% Travel & Tourism 15% Utilities 15% Real Estate 15% Manufacturing 15% Health Care, Wellness & Medical 15% ECommerce 10% Human Resource
  • 15% Travel & Tourism
10-50
Employee Size
$5,000+
Min. Project Size
$25 - $49 / hr
Rate Per Hour
1 Portfolios
Company Portfolios
London, United Kingdom
Company Location

Smart Working

Offshore Developers, Onshore Results
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About

Catering primarily to businesses of all sizes within the Information Technology sectors, Smart Working operates as a full-service mobile app development agency. Their team focuses on creating scalable digital products, with specific expertise in iOS and Android app development, helping clients navigate the mobile landscape. [View Smart Working profile ]

Service Line
5% Mobile App Development 10% Custom Software Development 10% Web Development 10% Wearable App Development 10% CRM Consulting And SI 5% E-Commerce Development 5% Artificial Intelligence 5% Blockchain 5% AR/VR Development 5% Enterprise App Modernization 5% Application Management & Support 5% IT Strategy Consulting 5% BI & Big Data Consulting & SI 5% Cloud Consulting & SI 5% ERP Consulting And SI 5% ECM Consulting And SI
  • 5% Mobile App Development
Industries
100% Information Technology
  • 100% Information Technology
201-300
Employee Size
$10,000+
Min. Project Size
$25 - $49 / hr
Rate Per Hour
0 Portfolios
Company Portfolios
London, United Kingdom
Company Location

Bigil Toks

Visit Website
Key Clients:
  • Bharani Silks
  • Erode College of Law
  • RR Kapok Mattress
About

Bigil Toks is recognized for delivering end-to-end app development services, tailored for businesses. Specializing in iOS and Android app development, this mobile app development company works extensively in industries like ECommerce, building solutions designed to meet specific market demands. [View Bigil Toks profile ]

Service Line
70% Mobile App Development 55% E-Commerce Development 50% Web Development 45% Advertising
  • 40% Mobile App Development
Industries
100% ECommerce
  • 100% ECommerce
0-9
Employee Size
$1,000+
Min. Project Size
$25 - $49 / hr
Rate Per Hour
0 Portfolios
Company Portfolios
London, United Kingdom
Company Location

Montenegro Systems

Web, mobile app and software development company
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About

With a strong footprint in Automotive, Real Estate, Oil & Gas, Montenegro Systems positions itself as a versatile mobile app development company. They assist businesses of all sizes by engineering robust iOS and Android app development solutions that align with business goals. [View Montenegro Systems profile ]

Service Line
5% Mobile App Development 5% UX/UI Design 5% ERP Consulting And SI 5% IT Staff Augmentation 5% IT Managed Services 5% BI & Big Data Consulting & SI 5% IT Strategy Consulting 5% Artificial Intelligence 5% Web Development 5% Custom Software Development 5% Product Design 5% Market Research 5% Web Design 5% Digital Marketing 5% Pay Per Click 5% Search Engine Optimization 5% Conversion Optimization 5% Mobile & App Marketing 5% Product Marketing 5% Marketing Strategy
  • 5% Mobile App Development
Industries
10% Automotive 5% Real Estate 5% Oil & Gas 5% Education 5% Dental 5% Travel & Tourism 5% Restaurant 5% Logistics & Supply Chain 5% Food & Beverage 5% Construction & Engineering 5% Agriculture & Farming 5% Retail 5% Telecommunications 5% Transportation 5% Manufacturing 5% Information Technology 5% Health Care, Wellness & Medical 5% Gaming 5% Financial Services
  • 10% Automotive
10-50
Employee Size
$10,000+
Min. Project Size
$25 - $49 / hr
Rate Per Hour
0 Portfolios
Company Portfolios
London, United Kingdom
Company Location

TH-EY

Custom Software Development, Design & Consulting
Visit Website
About

TH-EY provides bespoke app development services for businesses of all sizes. The company offers high-performance iOS and Android app development. Their portfolio spans various verticals, with a notable focus on businesses in the Health Care, Wellness & Medical, Hospitality & Leisure, ECommerce. [View TH-EY profile ]

Service Line
5% Mobile App Development 50% Custom Software Development 5% Web Design 5% UX/UI Design 5% Product Design 5% Graphic Design 5% Web Development 5% Application Testing 5% Application Management & Support 5% IT Strategy Consulting 5% Cloud Consulting & SI
  • 5% Mobile App Development
Industries
30% Health Care, Wellness & Medical 15% Hospitality & Leisure 10% ECommerce 10% Education 10% Financial Services 10% Non-Profit 10% Restaurant 5% Government
  • 30% Health Care, Wellness & Medical
10-50
Employee Size
$10,000+
Min. Project Size
$50 - $99 / hr
Rate Per Hour
0 Portfolios
Company Portfolios
London, United Kingdom
Company Location

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Buying Guide

Importance of Hiring a Mobile App Development Company in London

Let's get this out of the way. Choosing London isn't about prestige. It's a calculated, strategic move. Or at least, it should be. If you get it right, the advantages are immense. For instance:

  • The Talent is Here. London is a global magnet for serious talent. We're talking world-class product strategists, designers, and engineers. Your challenge is filtering the talkers from the builders.
  • You Work in Real-Time. No 3 AM calls. No waiting 12 hours for an answer. Problems get solved the day they appear. The value of this cannot be overstated.
  • They Know the Law. Good firms here live and breathe GDPR. It’s not an afterthought; it’s baked into their process. That alone can save you from massive headaches.
  • Proximity to What's Next. The tech scene here is a blender of ideas. Your team is exposed to the latest mobile app development trends just by being here, and that thinking bleeds into your project.
  • You Can Meet Face-to-Face. Some problems can only be solved in a room with a whiteboard. Never underestimate the power of being able to look your lead developer in the eye.
  • Solid Ground. The UK’s legal system is clear and predictable. Your contracts mean something. Your IP is protected. It’s a safe place to do serious business.

Simply put, you’re buying into an ecosystem. A dense network of talent, ideas, and capital.

How to Separate Top Mobile App Developers in London from Pretenders?

Industries Hiring Top App Development Companies in London

The Cost of Hiring Mobile App Development Companies in London

Services Provided By Mobile App Development Firms in London

The Tech Stack Used by Top Mobile App Developers in London

Frequently Asked Questions

faq-banner

What should I actually ask mobile app development companies in London?

Forget the softball questions. Get right to it.

  • Show me an app you built that failed. What did you learn?
  • How do you handle disagreements about features or design?
  • What will our weekly communication look like? Be specific.
  • If the project goes off-track, who is responsible, and what's the plan?
  • Why did you lose your last client?
  • How do you ensure my data and my users' data are secure? What about GDPR?
  • What happens the day after we launch?
  • Who, specifically, will be working on my project? I want to meet them.
  • What do you need from me to make this project a success?
  • Why are you the right partner for this project?

Where are all these mobile app developers in London?

They are working for firms in plenty of areas. For instance, Silicon Roundabout in Old Street is the classic startup hub. Canary Wharf is heavy on FinTech. Shoreditch is for the creative and design-led firms. The talent is all over, but these are the epicenters.

How long will it take a mobile app development company in London to build an app?

Anyone who gives you a firm date without a multi-week discovery process is lying. But for a gut check? A simple, focused app (MVP) might take 4-5 months. A complex, feature-rich platform could easily take a year or more. Speed is the enemy of quality.

Do app development companies in London care about compliance?

It's table stakes. A professional London mobile app development firm will not treat this lightly. They'll know the rules for GDPR, PCI DSS (for payments), and the principles of HIPAA (for health) inside and out. It should be a core part of their process, not an add-on.

How will mobile app developers in London keep you in the loop?

Through relentless communication. The best firms operate with total transparency. Expect daily check-ins, weekly demos, and a shared project management tool like Jira where you can see everything. You should never have to ask, "What's the status?”

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