Top 10 Flutter

Companies in London

London is a lively capital and a leader in technology and fintech. In the first quarter of 2024, over 7,250 tech companies were set up, showing the city's strong growth. The value of London’s tech sector has increased to over £600 billion, with venture capital investment rising by 800% since 2014. London has more unicorn companies, or tech firms worth over $1 billion, than any other city in Europe. Several factors drive this success, including strong investment opportunities, a growing fintech scene, and a diverse talent pool in areas like AI, cybersecurity, and green tech. The startup scene in London is thriving, keeping the city at the top in Europe for tech growth. However, challenges like economic uncertainty and the need for affordable tech workspaces still exist. As these issues are tackled, London’s tech sector is set for even more success.

How Did We Pick the Best?

1

Stakk

LondonUnited Kingdom

Team Size 10-49
Cost of Services $$$$$ $70-150/h
2024 Awards Winner
2023 Awards Winner

Service Focus:

Mobile App DevelopmentUX/UI DesignArtificial Intelligence

Description

Stakk is the UK's #1 mobile app development company, rated #1 on TechBehemoths and based in London with over 10 years of experience building custom iOS apps, Android apps, and cross-platform mobile applications for startups and global enterprises.We are a leading mobile app development agency specialising in React Native, Flutter, native iOS and Android development, and AI-powered mobile solutions. Our 100% in-house senior team has delivered 120+...

Our Take

Out of 50,000 IT companies listed on TechBehemoths, Stakk is one that we could recommend for their services. Their reputation lies on facts such as 10 years of experience, 9 projects delivered and more than 5 happy clients. It is very likely that they could help you with your next IT project
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2

Plavno

LondonUnited Kingdom

Team Size 50-249
Cost of Services $$$$$ $30-70/h
2025 Awards Winner
2024 Awards Winner
2023 Awards Winner

Service Focus:

Mobile App DevelopmentArtificial IntelligenceDesktop App Development + See more

Description

Plavno is an AI-first software development company that helps businesses design, build, and scale intelligent digital products. We work with startups, enterprises, and technology-driven organizations that want to turn innovative ideas into reliable, high-performance solutions.Our multidisciplinary team covers the entire product lifecycle — from business analysis and product strategy to UI/UX design, custom software development, quality assurance,...

Our Take

Known for its credibility, Plavno has vast experience, excellent customer feedback, and a strong portfolio. Their TechBehemoths profile is proof of their experience and knowledge in the field.
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3

Magora

LondonUnited Kingdom

Team Size 50-249
Cost of Services $$$$$ $30-70/h
2025 Awards Winner
2024 Awards Winner
2023 Awards Winner

Service Focus:

Web DevelopmentMobile App DevelopmentCustom Software Development + See more

Description

Here at Magora we design and develop digital products including mobile apps, websites and web applications. We concentrate on business needs and build successful software with user-centered interaction design and scalable software architecture. Whether a B2C or a B2B project, iOS or Android app, first of all, we take the time to understand your goals, your product and the end-user’s needs. Our software development cases are loved by users for the...

Our Take

Magora has built a solid reputation as a reliable agency through years of experience, satisfied clients, and a diverse portfolio. Their TechBehemoths profile perfectly captures their industry know-how and skills.
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4

Nabu IT Solutions

LondonUnited Kingdom

Team Size 10-49
Cost of Services $$$$$ $30-70/h
2025 Awards Winner
2024 Awards Winner

Service Focus:

Digital MarketingWeb DevelopmentSEO + See more

Description

Nabu IT Solutions is a London-based technology company with a global reach, offering innovative, tailored solutions to businesses worldwide. Our mission is to empower organizations by streamlining operations, elevating digital presence, and driving measurable growth through our diverse services. With a team of skilled professionals and a client-first approach, we deliver impactful results for businesses of all sizes.Services We Offer:Software Dev...

Our Take

At Nabu IT Solutions, trust and experience go hand in hand. They've earned a stellar reputation with positive customer reviews and a strong portfolio. Their TechBehemoths profile demonstrates their vast industry knowledge and expertise.
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5

Timspark

LondonUnited Kingdom

Team Size 50-249
Cost of Services $$$$$ $30-70/h
2025 Awards Winner
2024 Awards Winner

Service Focus:

IT Staff AugmentationCustom Software DevelopmentWeb Development + See more

Description

Timspark is a UK-registered custom software development partner with delivery centers across Europe (Poland, Lithuania, Georgia) and a distributed presence including Latvia. We bring together 1,000+ vetted engineers and 30+ pre-built teams, serving 200+ clients across finance, healthcare, retail, logistics, manufacturing, and more.How we engageWe offer Core Teams (pre-built, domain-savvy units with clear ownership), Dedicated Teams, Team Augmenta...

Our Take

Timspark is a dedicated team delivering results. Each member brings unique skills and love for what they do. Their attention to detail ensures that every client receives personalized and effective solutions. Check out their portfolio on TechBehemoths to see more Timspark projects.
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6

Creative Navy

LondonUnited Kingdom

Team Size 10-49
Cost of Services $$$$$ $70-150/h
2025 Awards Winner

Service Focus:

UX/UI DesignWeb DesignEnterprise App Modernization + See more

Description

Creative Navy is a UX/UI design studio specializing in complex, high-stakes applications for industries like healthcare, manufacturing, automotive, and energy. Known for evidence-based methods, they excel in embedded GUIs, touch interfaces, and technical software for professionals, balancing usability with operational constraints. Their team blends cognitive science and HMI expertise, trusted by clients such as Miele, Bosch, and Ford. With hubs i...

Our Take

Considering their vast industry know-how, positive customer feedback, and successful project showcases on TechBehemoths, you can trust Creative Navy to be your partner in building your IT project.
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7

Pixelette Technologies

LondonUnited Kingdom

Team Size 250-999
Cost of Services $$$$$ $30-70/h

Service Focus:

BlockchainArtificial IntelligenceWeb Design + See more

Description

Pixelette Technologies has been awarded ‘Best AI Agency’ in the UK three times by the Scottish Business Awards along with many other accolades. Whether you’re a budding entrepreneur with limited tech skills, an established business moving towards rapid expansion, or a government functionary looking to redefine efficiency, we offer end-to-end IT services in the realm of AI and Blockchain.  We see tech as a means to...

Our Take

Pixelette Technologies works with small and medium enterprises as well as start-ups. The company's priority is customer happiness, which is built on teamwork and passion. We invite you to take a look at their offerings and decide if they are a good fit for you.
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What is Flutter and what are its benefits for your projects?

Flutter is an open-source UI (User Interface) framework developed by Google for building natively compiled applications for mobile, web, and desktop from a single codebase.

It was officially introduced by Google in May 2017, although its development began earlier as an internal project named "Sky." It aimed to address challenges in cross-platform mobile app development by providing a consistent and high-performance framework for building native-like apps on iOS, Android, and other platforms. Flutter has since gained significant traction and popularity in the developer community.

Flutter has seen rapid adoption, thanks to its key advantages, such as a single codebase for multiple platforms, a rich set of pre-designed widgets, and fast development cycles. It has found use in various industries, including mobile app development, web development, desktop applications, and even embedded systems. Some notable apps developed with Flutter include Alibaba, Google Ads, eBay Motors, and more. Its usage continues to grow, and it has a strong developer community and ecosystem.

Flutter is versatile and suitable for a wide range of projects:

  • Mobile Apps: Flutter is commonly used for developing mobile applications, including consumer apps, business apps, e-commerce apps, social media platforms, and more. It provides a native-like experience on both Android and iOS.
  • Web Apps: Flutter can be used to build web applications, allowing developers to target browsers as well. This is still in the experimental phase (as of my knowledge cutoff date), but it shows promise for building responsive web interfaces.
  • Desktop Applications: Flutter supports desktop platforms like Windows, macOS, and Linux. Developers can create desktop applications for various purposes, including productivity tools and utilities.
  • Embedded Systems: Flutter can be used to create user interfaces for embedded systems and IoT (Internet of Things) devices, providing a consistent look and feel across different hardware.
  • Custom UI Components: Flutter is often used to build custom UI components and widgets that can be integrated into larger applications, providing a cohesive design language.

Hourly rates for Flutter developers can vary significantly based on factors like location, experience, project complexity, and demand. On average, Flutter developers may charge anywhere from $25 to $150 or more per hour. Rates tend to be higher in regions with a higher cost of living, such as North America and Western Europe, and lower in regions with lower living costs, such as Asia and Eastern Europe.

It's important to note that more experienced and specialized Flutter developers with a strong track record may charge higher rates. Additionally, some developers or development agencies may offer fixed-price contracts for specific Flutter projects, which can vary widely based on the project's scope and requirements.

When hiring Flutter developers, it's essential to consider factors like their expertise, portfolio, and the complexity of your project. Getting multiple quotes and conducting interviews can help you determine a reasonable rate and find the right developer or team for your specific needs.

We have also written an extensive research of what skills you should be looking for when hiring Flutter developers.