Software Development

Top Custom Software Development Companies in London

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Custom Software Development Companies have a 4.7 avg. rating from 985 verified reviews
Leaf through the premier custom software development companies in London that customize, maintain and/or build high-quality solutions, mobile applications and more. Filter listings by reviews, pricing, team size to find the ideal team for your project requirements and budget.
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Best London Software Development Firm Rankings

384 Companies
Rankings updated: July 16, 2024
  • SENLA

    Software Engineering Laboratory
    SENLA is a fast-growing custom software development company with a proven track record and 5 EU locations. Our team of 600+ certified technical specialists and managers has an impressive expertise in  [... view the full profile of SENLA]
    London, United Kingdom
    500 - 999 $35/hr $10,000 - $25,000
    VISIT WEBSITE
  • ELEKS

    ELEKS, a trusted partner for guaranteed software engineering excellence, quality, and transparency.
    ELEKS is the partner of choice for many leading enterprises, SMEs and technology challengers. We help businesses elevate their value through custom software development, product design, QA and  [... view the full profile of ELEKS]
    London, United Kingdom
    1000 & Up $50/hr $25,000 - $50,000
    VISIT WEBSITE
  • Vention

    Elevate your business: custom solutions, built to scale
    We're Vention, partner of forward-thinking tech leaders worldwide.  [... view the full profile of Vention]
    London, United Kingdom
    1000 & Up $50/hr $25,000 - $50,000
    VISIT WEBSITE
  • Get what matters!
    Suffescom is a leading mobile app development company offering top-notch solutions across diverse industries.  [... view the full profile of Suffescom Solutions Inc]
    London, United Kingdom
    250 - 499 Inquire $10,000 - $25,000
    VISIT WEBSITE
  • Zazz

    Let's get your business Future-Ready!
    Zazz equips your business digitally with mobile, web & custom software development solutions, helping you stay relevant in the dynamic market filled with growing customer needs.  [... view the full profile of Zazz]
    London, United Kingdom
    250 - 499 $45/hr Inquire
    VISIT WEBSITE
  • Phenomenon Studio

    Full service studio for both startups and established businesses
    Phenomenon is an international full-cycle product development company focused on building products that matter. Phenomenon has grown into a top-rated international agency with offices in Poland  [... view the full profile of Phenomenon Studio]
    London, United Kingdom
    50 - 99 $55/hr Inquire
    VISIT WEBSITE
  • WTT Solutions

    World-class web and mobile platforms development
    WTT Solutions makes it easy for you to deliver on your business goals through amazing technologies. We are close to our US, UK, and German clients. We create web, mobile and software solutions as well  [... view the full profile of WTT Solutions]
    London, United Kingdom
    Under 49 $45/hr $10,000 - $25,000
    VISIT WEBSITE
  • Openxcell

    Most Trusted App and Software Development Company
    OpenXcell is the world's most trusted performance testing, mobile app and software development company catering to leading brands like Google, Motorola, Byju's, Schlumberger, John Hopkins, Cin7, etc.  [... view the full profile of Openxcell]
    London, United Kingdom
    500 - 999 Inquire $10,000 - $25,000
    VISIT WEBSITE
  • DevsData Tech Talent

    Premium Software Development & Tech Recruitment Services
    IT managed services, offshore team in Poland , Romania , and LATAM , highly-technological clients with ultra high satisfaction  [... view the full profile of DevsData Tech Talent]
    London, United Kingdom
    Under 49 $55/hr Inquire
    VISIT WEBSITE
  • Newwave Solutions

    Top 10 software & blockchain development company in Vietnam
    Newwave Solutions is a top-notch IT outsourcing company with over 12+ years of experience and 300+ dedicated employees.  [... view the full profile of Newwave Solutions]
    London, United Kingdom
    500 - 999 $25/hr $25,000 - $50,000
    VISIT WEBSITE
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  • Andersen

    FinTech Unleashed: React Native Excellence by Andersen"
    Choose Andersen for top-tier React Native development in the FinTech industry. Trust our 190+ experts to ensure 100% compliance with industry standards.  [... view the full profile of Andersen]
    London, United Kingdom
    1000 & Up $50/hr $50,000 & Up
    VISIT WEBSITE
  • CSSChopper

    Website and eCommerce Development Company
    CSSChopper is a prominent web and eCommerce development company. Our team works on future-ready technologies to help clients stay competitive in the long run. We specialize in complex web development  [... view the full profile of CSSChopper]
    London, United Kingdom
    100 - 249 $25/hr $1,000 - $10,000
    VISIT WEBSITE
  • Peiko

    Technical partners | Full-service Web development | IT Outsourcing | Blockchain Development Company
    Peiko is a company that develops the most demanding and technically complex web projects, improving the quality of products for all major IT markets in the world. We have been helping companies and  [... view the full profile of Peiko]
    London, United Kingdom
    50 - 99 $40/hr $25,000 - $50,000
    VISIT WEBSITE
  • Itransition

    Turning software ideas into reality
    Itransition specializes in assisting startups and medium to large scale businesses with their software solution needs. Our range of services encompasses the entire development lifecycle, from initial  [... view the full profile of Itransition]
    London, United Kingdom
    1000 & Up $40/hr $50,000 & Up
    VISIT WEBSITE
  • CraftedQ

    Top 1% Software Development Company Trusted By Fortune 500
    CraftedQ is a one-stop shop for all your digital needs. Our team of 300+ experts in full-stack development, DevOps, cloud architecture, product development, digital consulting, UI/UX design and  [... view the full profile of CraftedQ]
    London, United Kingdom
    250 - 499 $25/hr $25,000 - $50,000
    VISIT WEBSITE
  • TekRevol

    Your Vision. Our Expertise. Shaping the Future!
    TekRevol is a global leader in digital innovation, dedicated to creating advanced products ranging from mobile apps to AI-enhanced software solutions. Our goal is to help businesses outperform their  [... view the full profile of TekRevol]
    London, United Kingdom
    250 - 499 $35/hr $25,000 - $50,000
    VISIT WEBSITE
  • Snotor

    Delivering results. Efficiently and effectively
    Snotor is a Web and Mobile Application Development company that helps you enhance the value of your business, reach your strategic goals, and win the market. With 16 years of experience and 450+  [... view the full profile of Snotor]
    London, United Kingdom
    50 - 99 $40/hr $10,000 - $25,000
    VISIT WEBSITE
  • GO ONLINE

    Magic Code Recipe Developed To Combine Reliability With Innovation.
    Custom Software Development Experts  [... view the full profile of GO ONLINE]
    London, United Kingdom
    Under 49 $35/hr Inquire
    VISIT WEBSITE
  • Apptension

    Apptension helps brands, investors and innovators build their digital products.
    Apptension is a creative product studio focused on crafting innovative experiences and delivering cutting-edge tech to our partners.We work with founders, investors, and creative agencies to help  [... view the full profile of Apptension]
    London, United Kingdom
    50 - 99 $58/hr Inquire
    VISIT WEBSITE
  • Light IT

    Deep tech expertise for SME
    Light IT provides the following services on the global tech market:- consulting clients on IT products and services- custom product and software development- provision of resources at the  [... view the full profile of Light IT]
    London, United Kingdom
    100 - 249 $35/hr $10,000 - $25,000
    VISIT WEBSITE
  • Softermii

    Succeed Without (L) imitations
    Softermii (https://www.softermii.com/) is an outsourcing/outstaffing company with more than 8 years of experience in web and mobile application development with a team of more than 120 specialists  [... view the full profile of Softermii]
    London, United Kingdom
    100 - 249 $45/hr $25,000 - $50,000
    VISIT WEBSITE
  • Gecko Dynamics

    Since 2002 in the software development business. Companies from 27 industries choose us.
    With over 20 years of industry experience, Gecko Dynamics is a trusted partner for startups and enterprises. Our team delivers end-to-end solutions using Java, Angular, Flutter, and AWS. From ideation  [... view the full profile of Gecko Dynamics]
    London, United Kingdom
    50 - 99 $50/hr Inquire
    VISIT WEBSITE
  • Unicsoft

    Blockchain | Web3 | DLT | Software Development
    Unicsoft is a software engineering firm known for its expertise in Blockchain, Web3, and DLT technologies. We are the preferred choice for both established companies and startups seeking accelerated  [... view the full profile of Unicsoft]
    London, United Kingdom
    100 - 249 $50/hr $50,000 & Up
    VISIT WEBSITE
  • TRIARE

    TRIARE unlocks IT potential of YOUR business
    TRIARE provides comprehensive services encompassing the entire software development lifecycle of WEB and MOBILE applications, along with UI/UX Design, Prototyping, Business Analysis, and software  [... view the full profile of TRIARE]
    London, United Kingdom
    50 - 99 $45/hr Inquire
    VISIT WEBSITE
  • Zudu

    DesignRush Design Award Winner
    Dreams Have No Limits In A Digital World
    Why not try some top quality UK delivery. Zudu is an award-winning, industry-leading, software development agency based in London and Dundee. Our specialist team create jaw-dropping digital  [... view the full profile of Zudu]
    London, United Kingdom
    Under 49 $50/hr $10,000 - $25,000
    VISIT WEBSITE
  • itCraft

    High-end development for mobile innovation leaders
    Top rated software house that delivers mobile and web application for clients around the world. 11 years on the market, 100+ engineers, 250+ projects delivered. All aspects related to safety  [... view the full profile of ItCraft]
    London, United Kingdom
    100 - 249 $50/hr $50,000 & Up
    VISIT WEBSITE
  • SPEEDNET

    We eliminate technological friction to unlock and add value to your customers.
    SPEEDNET is an agile technology consultancy and software development partner working predominantly in financial and educational verticals. We're a top-of-mind software agency for banking, fintech  [... view the full profile of SPEEDNET]
    London, United Kingdom
    100 - 249 $60/hr $25,000 - $50,000
    VISIT WEBSITE
  • Zamratech

    Your Gateway to Tech Excellence
    Zamratech, a globally recognized company based in the United States, has become a leading worldwide application developer. We provide a comprehensive range of digital services, including web design  [... view the full profile of Zamratech]
    London, United Kingdom
    100 - 249 $35/hr $1,000 - $10,000
    VISIT WEBSITE
  • Imaginary Cloud

    Promising great service at competitive rates!
    Imaginary Cloud, boasting over a decade of experience, achieved recognition as one of the Top 100 Fastest Growing Companies and Top 1000 Global Companies in both 2020 and 2021. In 2021, it secured the  [... view the full profile of Imaginary Cloud]
    London, United Kingdom
    50 - 99 $50/hr $1,000 - $10,000
    VISIT WEBSITE
  • dotcode

    Secure IT Solutions for a more secure environment
    dotcode is a full-cycle software development company. At dotcode, we know how its crucial to understand the users needs when building a successful product. Our team combines amazing minds in  [... view the full profile of Dotcode]
    London, United Kingdom
    Under 49 $35/hr $25,000 - $50,000
    VISIT WEBSITE
  • TechnoScore

    Web & App Development Company
    TechnoScore is a reputed web and mobile app development company located in Laguna Beach, California.  [... view the full profile of TechnoScore]
    London, United Kingdom
    100 - 249 $14/hr $1,000 - $10,000
    VISIT WEBSITE
  • Israel IT

    Scaling Your Business with Custom Solutions and Dedicated Offshore Teams
    srael IT, a top offshore solutions firm, offers custom dev services and dedicated offshore teams of software developers, web designers, and marketing experts. Join a community of satisfied customers  [... view the full profile of Israel IT]
    London, United Kingdom
    100 - 249 $50/hr $10,000 - $25,000
    VISIT WEBSITE
  • GeekyAnts

    Build. Accelarate. Scale.
    GeekyAnts is an avant-garde design and development studio, distinguished for creating transformative solutions across web and mobile platforms. We specialize in social network app development too.  [... view the full profile of GeekyAnts]
    London, United Kingdom
    250 - 499 $25/hr $10,000 - $25,000
    VISIT WEBSITE
  • Shinetech Software

    Great software starts with great people
    We are Shinetech - an international software development company specializing in dedicated development. Agile is our primary software development model, and we offer a one-week free trial period where  [... view the full profile of Shinetech Software]
    London, United Kingdom
    500 - 999 $35/hr $25,000 - $50,000
    VISIT WEBSITE
  • Dev Technosys

    Dev Technosys is an ISO 9001:2008 certified web and mobile app development company. Dev Technosys started back in 2010, is a perfect fusion of talent, endeavoring over 950+ successful Mobile and Web  [... view the full profile of Dev Technosys]
    London, United Kingdom
    100 - 249 $20/hr Inquire
    VISIT WEBSITE
  • Steptech Global

    Step Towards Innovation
    Steptech Global operates as a software design and development enterprise, offering cutting-edge IT solutions tailored for small and medium businesses as well as enterprises. Our track record showcases  [... view the full profile of Steptech Global]
    London, United Kingdom
    100 - 249 $35/hr $1,000 - $10,000
    VISIT WEBSITE
  • SiliconMint

    Dedicated teams that build complex software systems
    SiliconMint designs, develops, and supports mission-critical software systems. Based in San Francisco, SiliconMint has offices in New York and Europe to serve clients across the globe.  [... view the full profile of SiliconMint]
    London, United Kingdom
    50 - 99 $55/hr $25,000 - $50,000
    VISIT WEBSITE
  • The Codest

    We support clients' digital transformation projects by providing IT professionals.
    In Code We Trust - Scale your development team with quality and trust the power of our expertise.  [... view the full profile of The Codest]
    London, United Kingdom
    50 - 99 Inquire Inquire
    VISIT WEBSITE
  • Top Notch Dezigns®

    Web Design + Digital Marketing Agency | 20+ Years Experience
    Top Notch Dezigns is a full-service web design and digital marketing agency that specializes in custom websites tailored to meet diverse business requirements. With a focus on boosting brands  [... view the full profile of Top Notch Dezigns®]
    London, United Kingdom
    50 - 99 $150/hr Inquire
    VISIT WEBSITE
  • 7EDGE

    Software and Product Development | Dedicated Teams
    7EDGE is a custom software development company helping enterprises, brands, and startups develop a strategic roadmap in their digital journey. Our core strength lies in developing custom software and  [... view the full profile of 7EDGE]
    London, United Kingdom
    50 - 99 $25/hr $25,000 - $50,000
    VISIT WEBSITE
  • Uinno

    We stand for awesome!
    “I believe that it is better to think first and do the right thing from the beginning, than not to think and do bullshit.” Andrew Sharapo | The perfectionist and CTO at Uinno  [... view the full profile of Uinno]
    London, United Kingdom
    Under 49 $45/hr Inquire
    VISIT WEBSITE
  • Intellectsoft

    We integrate, innovate, and elevate enterprise systems.
    Intellectsoft, with 13 years of expertise, champions modernizing systems and enhancing app portfolios. Through our systematic development lifecycle, from planning to maintenance, we offer reliable  [... view the full profile of Intellectsoft]
    London, United Kingdom
    100 - 249 $80/hr $50,000 & Up
    VISIT WEBSITE
  • Top Mobile App and Web Development Company
    Promatics Technologies is a premier web and mobile apps development company. As a seasoned team of 100+ developers we have built a strong foundation of web and mobile app development processes with  [... view the full profile of Promatics Technologies]
    London, United Kingdom
    100 - 249 $15/hr $10,000 - $25,000
    VISIT WEBSITE
  • Computools

    Unlock Tomorrow.
    Computools is an IT Consulting and Software Solutions Development company that designs solutions to help companies meet the needs of tomorrow.  [... view the full profile of Computools]
    London, United Kingdom
    250 - 499 $40/hr $25,000 - $50,000
    VISIT WEBSITE
  • One Beyond

    Think bespoke. Think beyond. One Beyond.
    One Beyond specializes in government custom software development, offering tailored solutions for the Government and Public Sector. From inception to post-launch support, we're a committed partner.  [... view the full profile of One Beyond]
    London, United Kingdom
    250 - 499 $99/hr $50,000 & Up
    VISIT WEBSITE
  • We create digital products and grow with our partners!
    Rocketech is a software development company collaborating with 100+ Middle and Senior level IT and business professionals and specialising in analytics-driven web and mobile development. Our team has  [... view the full profile of Rocketech Development]
    London, United Kingdom
    50 - 99 $30/hr $1,000 - $10,000
    VISIT WEBSITE
  • Hire World-Class Offshore Developers @$15/HR from 10 Yrs.+ Exp. Award-Winning Software Company.
    Outsource Your Software Development Services to DreamzTech, the 10 Yrs.+ Exp. Award-Winning Software Design & Development Company based in USA, UK, India & South Africa. Hire World-Class Offshore  [... view the full profile of DreamzTech Solutions]
    London, United Kingdom
    250 - 499 $20/hr $10,000 - $25,000
    VISIT WEBSITE
  • We Deliver #DigitalSuccess
    At INT, The agency support your ideas and use its broad expertise to make them a reality. Our consultation process is motivated by analytics. We use technology to our advantage to create  [... view the full profile of Indus Net Technologies]
    London, United Kingdom
    500 - 999 $35/hr $1,000 - $10,000
    VISIT WEBSITE
  • Altar.io

    Custom Product & Software Development Focused On Your Success
    Altar.io is an award-winning product & software agency based in Lisbon, London and Milan, committed to helping worldwide entrepreneurs and business leaders disrupt their industries.The team is made of  [... view the full profile of Altar.io]
    London, United Kingdom
    Under 49 $100/hr $10,000 - $25,000
    VISIT WEBSITE
  • Mercury Labs

    A product-focused, machine-learning, data science, e-commerce, and software team.
    A product-focused, machine-learning, data science, e-commerce, and software team.  [... view the full profile of Mercury Labs]
    London, United Kingdom
    Under 49 $100/hr $10,000 - $25,000
    VISIT WEBSITE
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    Need Help Selecting The Right Agency For Your Project?

    We can help you find verified agencies that fit your budget and other requirements within just a few days and free of charge.

What Makes London Software Companies Unique?

The UK capital has established a robust technology ecosystem that is expanding quickly and powering most of Europe's innovation over the past 20 years. In the UK, over 466,000 programmers and experts worked in software development in 2021. Statista also reports that about 200k professionals work in software development companies outside of the creative sectors in London. This provides organizations from many industries with a great resource for finding the top software companies in London.

What Do Software Companies in London Specialize in?

Systems developers, web developers, mobile developers, and test automation developers are the four main subcategories of software developers. Typical tasks performed by software developers include writing and testing codes, communicating and consulting with other team programmers, and utilizing software development tools. London software developers typically work in teams and use development tools to write and test codes. Typical development tools include source control management (Git, SVN), deployment (Jenkins, Hudson), and issue management (Jira). 

Why Outsource Software Development Companies in London?

Thanks to the U.K.'s expanding tech landscape, a robust tech community has been cultivated. Outsourcing software development companies in London can benefit you in many ways, such as offshore expert resourcing and having the most recent technology available. The U.K. ranks third in the world for investments in emerging technologies, according to the 2021 Technology and Innovation report (robotics, biotechnology, AI). 

How Much Do Software Developers in London Charge for Their Services?

The senior software developer can earn up to $126,500 a year, or about $500 daily (not counting the bonuses). Depending on the complexity of the project and your requirements, software development businesses' costs in London might range from an average hourly rate of $8 to $500.

How To Find the Right Software Development Company in London for Your Business?

Some excellent strategies that will undoubtedly aid you in drawing that coveted talent to work for your business include in-detail research, employing referrals, asking the correct queries such as budget and tasks management, conducting tests, and ensuring culture fits.

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About The Author and Expert Reviewer
Former Content Specialist
Sumana Ganguly has over a decade of experience in writing for the tech industry. She started her career at Indus Net Technologies, Embee Software, and Global Info and Solutions System, where she won the Best Content Writer award. As a former writer at DesignRush, she covered insightful tech topics and trends that help companies future-proof their businesses.
Chief Technology Officer
Gary Kuznetsov is a seasoned programmer, web developer, and certified Laravel developer. He was a Senior PHP developer at Blue Fountain Media, then soon became Head of Development at Digital Silk. With hundreds of successful websites/applications deployed throughout his career, it is no surprise that he is now a Chief Technology Officer at DesignRush, spearheading digital products and solutions to meet the company’s challenges and objectives.