Top 30 Software Development Companies in London

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Top 30 Software Development Companies in London

December 2023
The right custom software can give a struggling or growing business the edge it needs. Different kinds of custom software exist for all kinds of functions, such as enterprise resource planning solutions, customer relationship management systems, and content management systems. 
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List of the Best London Software Development Firms

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  • 4
    • Scheduling

      4.6
    • Quality

      4.8
    • Cost

      4.5
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 250 - 999 employees
    • London, United Kingdom

    Infinum is a software development company in San Francisco, CA. The 50+ team has equal experience in mobile and web development. They work with clients from a variety of industries, including business and financial services and automotive.

    Clients

    • Philips
    • Nike
    • Porsche
    • Coca Cola

    Industries

    Notable Project

    Infinum designed and developed an application for a fixtures installation company. Infinum created an internal app for the client's company with work management, tracking, invoicing, and billing capabilities.

    "I was impressed with the openness of the company personnel to want to help us succeed."

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  • 5
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Headquartered in New York, Vention is a custom software development company with additional offices in Marietta, Ga. and Iselin, N.J. Since 2002, Vention has helped startups and fast-growing tech companies fill in their talent gap and create robust web and mobile solutions that users love. To date, Vention's talent pool includes 3500+ engineers with experience in all of the latest technologies.

    Clients

    • ClassPass
    • ZEFR
    • Gain Capital (forex.com)
    • Merkle

    Industries

    Notable Project

    Vention provides staff augmentation services to a SaaS solutions provider. The scope includes software and feature development and maintenance across the product line.

    "They are all developers capable of delivering their responsibilities."

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  • 6
    • $25,000+
    • 50 - 249 employees
    • Croydon, United Kingdom

    Founded in 2005 and headquartered in Croydon, UK, GoodCore Software specializes in bespoke software development. WIth a team of about 50 employees, the company offers web and mobile app development to startups and established businesses alike. Engagement options include fixed- cost and dedicated development teams.

    Clients

    • Printed Music Licensing
    • Weight Loss Resources
    • GC Business Finance
    • XTracked Deliveries

    Industries

    Notable Project

    GoodCore developed a SaaS application for managing briefing programs and events for Fortune 100 companies. The team coded in React and Laravel for creating a web-based application. The application helped automate and streamline the management of corporate events, briefing programs and meetings.

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  • 7
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 250 - 999 employees
    • London, United Kingdom

    TkXel is a mobile app and web development company founded in 2007. With its headquarters in Reston, Va., and an office in Lahore, Pakistan, they have a team of 318 employees. Their services include mobile app development, web development, and custom software development. They primarily serve small and midmarket clients. 

    Clients

    • ABB
    • Nokia
    • Groupon
    • TELUS

    Industries

    Notable Project

    Tkxel has helped a software consulting and development company streamline and optimize their processes and integrate data seamlessly. The team has also worked on enhancing the client's customer interactions.

    "I'm impressed with their solutions."

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  • 8
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.6
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Andersen is an international custom software development company that, among other things, specializes in healthcare software development. Since its founding in 2007, the company has opened more than ten development centers and about ten sales offices worldwide. More than 2700 highly qualified specialists work on developing, customizing corporate IT solutions, web applications, and mobile applications. Andersen has completed over 950 projects and received hundreds of positive reviews from clients worldwide. Today the company is working on over 250 projects. Our technology stack includes .NET, C#, Java, Python, PHP, Node.js, TypeScript, Golang, C++, JavaScript, Angular, React.js, Vue.js, HTML, CSS, Java (Android), Swift / Objective C (iOS), React Native, and more. We also offer manual and automated testing, business and data analysis, UI/UX design, DevOps services, IT security management, and L1, L2, L3 support.

    Clients

    • Samsung
    • Johnson & Johnson
    • GlobePayroll
    • Siemens

    Industries

    Notable Project

    A ride-hailing company has hired Andersen Inc. to develop two new financial products. The team is responsible for front- and backend development, integrations, testing, and analytics set-up.

    "The team is highly flexible and responsive to any business need in no time."

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  • 9
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • London, United Kingdom

    Core Blue Ltd is a software engineering company based in London with an office in Plymouth, U.K. The company, founded in 2015, has a team of less than ten that provides custom software development, mobile app development, web development, and IoT development services to various companies.

    Clients

    • Bank of Kigali
    • Kuoni
    • PayPoint
    • SAP

    Industries

    Notable Project

    CoreBlue supported the development of a volunteering software marketplace for a digital products and services company. They provided a roadmap, created design prototypes in Figma, and built portals in React.

    "They took the time to understand the long-term plan for this platform."

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  • 10
    • $25,000+
    • 50 - 249 employees
    • London, United Kingdom

    Imaginary Cloud is a Web, Mobile and AI Software Development and UX/UI Design Company with offices in the UK, US and Portugal. In the last 11 years they have helped build and scale more than 300 applications, from Start-ups, Scale-ups to Enterprises, winning several global awards. They offer a comprehensive skill set of developers, data scientists and designers coupled with a streamlined agile process.

     

    Clients

    • Nokia
    • Sage
    • Ernst & Young
    • BNP Paribas

    Industries

    Notable Project

    Imaginary Cloud provided staff augmentation services for an industrial IoT solutions company. They supported the internal team to develop a React Native mobile app and helped with user stories design and tech.

    "We were impressed by their experienced team members."

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  • 11
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    RootQuotient is a technology and development partner based in Montreal. The team of 12 also has an office in Chennai, India and offers cross-platform app and software development services to its midmarket and small business clients. 

    Clients

    • Siemens Gamesa
    • Verizon
    • Nokia
    • L&T

    Industries

    Notable Project

    An oncology informatics company has hired RootQuotient for development services on four projects. The team has evaluated the client’s requirements and put together teams and outlines to begin development.  

    "RootQuotient has made us understand our product better because of their helpful recommendations."

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  • 12
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Founded in 1998 in Denver, Itransition now has multiple offices in the U.S., U.K., E.U., and locations in eastern Europe housing more than 2,200 employees. They help power enterprises and SMBs globally with their digital solutions in the areas of business process automation, AI, data analytics, customer experience, and others. 

    Clients

    • Expedia
    • Xerox
    • Toyota
    • eBay

    Industries

    Notable Project

    Itransition is helping develop and design a web and mobile app for a forensic ballistics company, including the entire backend infrastructure. Currently, they’re working on an AIML project as well.

    “Excellency is the most important characteristic of Itransition; they apply it to everything they do.”

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  • 13
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Based in Vienna, VA, 10Pearls designs and maintains apps for various companies. The company and its nearly 350 employees have experience in cybersecurity, product development, and UX/UI design.

    Clients

    • HughesNet
    • Johnson & Johnson
    • PayPal
    • CocaCola

    Industries

    Notable Project

    10Pearls provides software development resources to augment the team of a digital business platform. These resources use Starlette, Java, CSS, HTML, Oracle, and Azure DevOps Services as the technology stack.

    “They have very good processes in place to achieve better results.”

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  • 14
    • $50,000+
    • 250 - 999 employees
    • London, United Kingdom

    Headquartered in London, Opinov8 Technology Services is a technology solutions company that was founded in 2016. With offices in Ukraine and Spain, the team of 88 works with mid-market and small businesses in the financial services, advertising, marketing, gambling, hospitality, IT, and media industries. Opinov8 specializes in custom software development, enterprise app modernization, big data consulting, and clould consulting for clients.

    Clients

    • Fortune 500 Companies
    • Computer and IT service business. Leading Global Media companies. Global Logistics Technology business
    • Leading European Fintech Platform businesses. Global Tire Manufacturers. Leading European Car Manufacturer.  Top 100 Swiss Healthtech Startup. Many more

    Industries

    Notable Project

    A gambling company hired Opinov8 Technology Services for app development, a website refresh, and resources for their gaming system. Key technologies include React and .NET.

    “If you use them as a development resource, you’ll get tremendous value from them.”

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  • 15
    • $25,000+
    • 250 - 999 employees
    • London, United Kingdom

    Altkom Software & Consulting, founded in 1998, is a software development company headquartered in Warsaw, Poland, with an additional office in Krakow, Poland. They specialize in custom software development, web development, and application management & support. The company has 130+ employees who work with enterprise, mid-market, and small businesses. The businesses they serve are mostly in the financial services industry. 
     

    Clients

    • BNP Paribas
    • AXA Insurance
    • Santander
    • Danone

    Industries

    Notable Project

    Volvo has hired Altkom Software & Consulting to digitize and automate their sales processes. The team is also responsible for developing dealer web pages and designing their UI/UX for the client.

    "I was most impressed with their involvement in the project and team communication skills."

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  • 16
    • Scheduling

      4.9
    • Quality

      4.8
    • Cost

      4.3
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 250 - 999 employees
    • London, United Kingdom

    Method is a strategic design firm based in New York with offices in London; Denver; Atlanta; Charlotte, N.C.; and San Jose, Calif. The firm, founded in 1999, has more than 130 employees and provides UX/UI design, custom software development, digital strategy, web development, and branding services. Method serves enterprise and mid-market companies in the financial services, IT, arts & entertainment, customer products & services, medical, and e-commerce industries.

    Clients

    • Ubisoft
    • Manchester City
    • Evry
    • Clear

    Industries

    Notable Project

    Method is tasked with developing and implementing a design system for an insurance company. They help the company create a style guide and provide design and engineering support to handle its production.

    "Their ability to communicate and their investment in the project is impressive."

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  • 17
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 250 - 999 employees
    • Borehamwood, United Kingdom

    Binmile Technologies is a leading digital strategy and product engineering company based in India with offices globally and was founded in 2017. They have more than 200 employees that provide custom software, app development, web and e-commerce development, and app testing services with market-leading solutions. They expertly steer clients across the globe as they navigate their digital transformation powered by the latest technologies.

    Clients

    • Indigo
    • Adani
    • Nanovest
    • Prodigi

    Industries

    Notable Project

    A SaaS company tapped Binmile to provide engineers to augment their internal development teams. The engineers help with multiple projects involving web and mobile app development and web maintenance.

    "They were very prompt in their responses and always available."

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  • 18
    • Scheduling

      4.6
    • Quality

      4.8
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 50 - 249 employees
    • London, United Kingdom

    Digiryte is a web and mobile app development company based in Manchester, United Kingdom with another UK office in Preston. Since 2015, their team of 28 has been specializing in mobile app development, custom software development, and web development for midmarket clients. 

    Clients

    • NHS
    • Channel 4
    • Close Brothers
    • Hinch Property Management

    Industries

    Notable Project

    Picking up from a previous vendor, Digiryte developed a mobile app for an app development company. They're responsible for the app's maintenance and operational support.

    “Digiryte is always forthcoming with the best way to do things.”

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  • 19
    • Scheduling

      4.5
    • Quality

      4.7
    • Cost

      4.7
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom
    NashTech is a large London, United Kingdom-based software development company. Established in 2000, the team specializes in custom software development, IT strategy consulting, and application testing.

    Industries

    Notable Project

    NashTech rewrote one of the legacy apps of a global retail solutions firm using the latest technologies in the Google Cloud Platform. They gathered the client's requirements and redesigned the app from scratch.

    "We were impressed with their timely deliveries, good quality products, and very professional culture."

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  • 20
    • Scheduling

      4.6
    • Quality

      4.7
    • Cost

      4.5
    • NPS

      4.7
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 50 - 249 employees
    • London, United Kingdom

    Founded in 2010, Magora is a 50+ team of web and mobile app designers and developers based in London. Whether it’s B2B or B2C, the firm creates bespoke software that integrates with existing business solutions to enable user-centered interaction and scalable software architecture.

    Clients

    • Danone
    • Unilever
    • Toyota
    • Royal College of Art

    Industries

    Notable Project

    Magora has developed a web app for a video production company. The team has worked on building new features for the platform and has handled everything from wireframing and design to JavaScript development. 

    “They’re accessible, and it doesn’t feel like I’m working with a faceless team.”

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  • 21
    • Scheduling

      4.6
    • Quality

      4.8
    • Cost

      3.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Pentalog is a large Brașov, Romania-based custom software development company. Established in 1993, the team offers custom software development, IT staff augmentation, e-commerce development, and web development.

    Clients

    • Adidas
    • Ubisoft
    • SumUp
    • Rakuten

    Industries

    Notable Project

    Pentalog has been hired by a software company to augment their IT team. They helped transition the IT department to Agile and Scrum methodologies.

    "We were able to quickly integrate efficient developers at a reasonable cost."

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  • 22
    • Scheduling

      4.7
    • Quality

      4.8
    • Cost

      4.5
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $250,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Kin + Carta is a tech-centered management consultancy based in Chicago. Founded in 1964, they also have offices in London, San Francisco, New York, and Singapore. Their team of approximately 3,000 focuses primarily on enterprise clients in the financial services and health care fields. Services include mobile app development, cloud consulting, and more.

    Clients

    • AstraZeneca
    • Expedia
    • Santander
    • Barclays

    Industries

    Notable Project

    Kin + Carta (formerly Melon) helped design the website of a media company that’s based in Bulgaria. The team also implemented additional features to the site, conducted QA testing, and handled maintenance services.

    "We were most impressed with their communication skills."

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  • 23
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.5
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 1,000 - 9,999 employees
    • London , United Kingdom

    DataArt is a software engineering firm in München, Germany; Zug, Switzerland; London, England; and New York. Founded in 1997, they have about 3,000 employees that serve mainly midmarket and small-business clients in the financial, healthcare, and IT sectors. Services include custom software development, enterprise app modernization, and UI/UX design.

    Clients

    • The Carlyle Group
    • Nasdaq
    • Apax Partners
    • Monex

    Industries

    Notable Project

    DataArt provides e-commerce solutions for a B2B marketplace. The team is responsible for creating an automated and scalable solution that can be operated in multiple countries.

    "They try to solve problems in challenging times, which is highly appreciated."

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  • 24
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    Influential Software is a software development firm in London, United Kingdom; Maidstone, United Kingdom and Glasgow, United Kingdom. The firm focuses on custom software development, web development, BI & big data consulting & SI, IT managed services, and more and has a midsize team.The firm was launched in 1993.

    Clients

    • Deloitte
    • American Express
    • London Stock Exchange
    • Pret a Manger

    Industries

    Notable Project

    Influential Software has been hired by a healthcare training center to replace their legacy systems with more bespoke ones. The team has provided a tailored solution using .NET and a portal framework.

    "We are so impressed with the quality of work that was done."

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  • 25
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    Studio Graphene is a 90+ employee interdisciplinary team of strategists, designers, developers, and product managers. Studio Graphene is headquartered in London with studios in New Delhi, Lisbon, and Geneva. They collaborate with clients — from startups to established businesses — to define the details and specifications of projects, including custom software development, mobile app development, and UX/UI design.

    Clients

    • Diageo
    • Nesta
    • Harth
    • Mars

    Industries

    Notable Project

    Studio Graphene provides software development for a financial services company's B2C product. They've handled UI/UX ownership and built desktop, mobile, and web applications. They primarily use React Native.

    "There's a 'can do' positive attitude from all team members."

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  • 26
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 250 - 999 employees
    • London, United Kingdom

    SENLA is a fast-growing software development company in 5 EU locations, founded in 2012. Our team of 600+ certified technical specialists and managers has large expertise in a full-cycle development from BA to maintenance as well as separate services like QA or UX Audit. We have successfully completed over 350 projects in FinTech, Healthcare, Manufacturing and other industries.

    Clients

    • Abbott
    • Bayer
    • Accenture
    • Banx.one

    Industries

    Notable Project

    SENLA, Software Engineering Laboratory offers R&D services for a web-based blockchain platform. They’ve also provided DevOps and CI-CD (continuous integration and continuous delivery).

    "They really want to successfully process the project they were engaged on."

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  • 27
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    Brocoders is a software development company for VC-backed startups and midsize businesses based in Daytona Beach, Fla. Founded in 2014, Brocoders has a team of more than 70 specialists and has expanded to a second office in Kyiv, Ukraine to serve clients around the world. They provide web, cross-platform mobile app, custom software, and cloud architecture development.

    Clients

    • iFit - Interactive Fitness & Workout App
    • Wagepoint - Payroll Software
    • Backbone International - Event Production Company
    • Everypig - AI-based pig health and production management platform

    Industries

    Notable Project

    Brocoders developed custom software for a SaaS company. The team utilized React.js and progressive web apps to meet all the client's requirements. They also handled continuous improvements and new features.

    "I had very great communication with the team."

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  • 28
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    Angry Nerds is a software development house based on Wroclaw, Poland. Established in 2015, they have more than 60 employees who provide app development services for global clients consisting mostly of small and mid-market firms. Their services include custom software development, web development, and mobile development for Android and iOS. They also offer staff augmentation.

    Clients

    • Homedot app
    • Cats and Dogs app
    • NeoTaste
    • Epaka

    Industries

    Notable Project

    Angry Nerds developed an interactive map and custom CMS for a UX design consultancy. They built the software based on the provided design, conducted tests, deployed it, and provided a CMS training workshop.

    "The Angry Nerds team was very responsive and quick to take action on any feedback we had."

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  • 29
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.6
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 250 - 999 employees
    • London, United Kingdom

    Apadmi is a 140+ member mobile tech group specializing in app development, IoT, and consulting for big data, BI, and SI. Founded in 2009 and based in Manchester, UK, their team excels at helping organizations use technology to achieve a competitive advantage.

    Clients

    • BBC
    • Argos
    • Lexus
    • Range Rover

    Industries

    Notable Project

    Apadmi has developed an iOS and Android mobile app for a pizza restaurant where users can order food. The team provides their design, development, and testing expertise. They still develop and release features.

    “They’re fully engaged and supportive of the project.”

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  • 30
    • Scheduling

      4.6
    • Quality

      4.6
    • Cost

      4.4
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 10 - 49 employees
    • London, United Kingdom

    Bit Zesty is a custom software development firm. They provide custom software development, ux/ui design, web development, application management & support, and more and were launched in 2009. Their small team is London, United Kingdom-based.

    Clients

    • Oxford Medical Simulation
    • Trussell Trust (UK Foodbanks)
    • Queen's Awards for Enterprise
    • HMRC

    Industries

    Notable Project

    Bit Zesty is developing a healthcare recruitment agency’s software solution. They’ve conducted discovery sessions before building the tool using Ruby on Rails. They’re currently maintaining the app.

    "They understand the pulse of the customer and do not hesitate to make recommendations."

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