Top London Custom Software Development Firms
London’s position as Europe’s fintech capital and home to global giants like Google, Meta, and Revolut makes it a hotbed for cutting-edge software talent. Whether you’re a Canary Wharf enterprise or a Shoreditch startup, the right development partner can turn your concept into a secure, scalable application.
Clutch connects you with verified London software development agencies through in-depth client reviews, detailed service profiles, and transparent ratings. Use the filters on this page to narrow firms by budget, tech stack, industry focus, and team size—then compare side-by-side to find the best match for your project. Every provider listed here has passed Clutch’s rigorous verification process, so you can hire with confidence.
Looking to compare a broader pool of experts? Explore the global list of Top Software Development Companies
Considering nearby talent hubs? Check out agencies in Manchester and Bristol
Need industry-specific partners? View our filter for London Healthcare Software Developers
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Featured
What are Featured Providers?
$25,000+$25 - $49 / hr50 - 249London, EnglandServices provided
See all 33 projectsTech Alchemy is a bespoke software development company specializing in full-stack and custom software creation, often integrating advanced technologies like AI and blockchain. Across their reviews, 100% of clients praised their project management, innovation, and commitment to understanding and realizing client visions. Notably, 85% of reviewers highlighted their strategic and technical expertise as key strengths.
$25,000+$25 - $49 / hr1,000 - 9,999Serves London, EnglandServices provided
See all 82 projectsSimform is a custom software development company specializing in tailored software solutions across various industries, including SaaS, healthcare, and financial services. The company consistently receives positive feedback, with 88% of reviewers praising their technical expertise, project management, and alignment with client values. Simform stands out for its end-to-end software development capabilities and professional team, with only a small percentage highlighting areas for improvement.
$25,000+$25 - $49 / hr50 - 249Serves London, EnglandServices provided
See all 29 projectsDBB Software is a bespoke software development company specializing in tailored software development and full stack software development services. Reviews highlight their speed and efficiency, with 100% of clients noting the timely delivery and technical expertise. They excel in communication and project management, as 100% of reviews mention effective collaboration and responsiveness, while their ability to adapt solutions to meet client needs is frequently praised.
$25,000+$25 - $49 / hr50 - 249Serves London, EnglandServices provided
See all 53 projectsLeobit is a Custom Software Development company known for its strong expertise in modern architecture and end-to-end software development. Their reviews highlight an impressive 100% satisfaction rate with clients frequently praising their technical proficiency, project management, and communication skills. Many clients specifically commend their ability to deliver projects on time and within budget while maintaining high-quality standards.
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$1,000+$50 - $99 / hr2 - 9London, England
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Berqier, a website development company, specialize in Web Development and Web Design. They were launched in 2023.
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$1,000+< $25 / hr10 - 49London, England
Services provided
See all 1 projectsMiracify® is a leading IT services, consulting, and business solutions provider dedicated to empowering businesses through innovative technology. We specialize in IT support, managed IT services,
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Featured
What are Featured Providers?
$10,000+$25 - $49 / hr50 - 249Serves London, EnglandServices provided
See all 3 projectsAttrecto Next Tech Digital Solutions is a versatile software development company specializing in mobile app and web platform development. They consistently deliver high-quality results, as evidenced by positive client feedback highlighting their strong project management, flexibility, and innovative approach. Notably, they maintain a 100% satisfaction rate among clients, with numerous mentions of their adaptability and comprehensive project execution.
$25,000+$50 - $99 / hr1,000 - 9,999London, EnglandServices provided
See all 98 projectsVention is a bespoke software development company specializing in custom software creation and full-stack software development. Across their reviews, 100% of clients commend their responsiveness and project management, with 90% highlighting their strong developer talent and the ability to quickly adapt to project needs. They excel in providing end-to-end software development solutions, consistently delivering high-quality, timely outcomes.
$10,000+< $25 / hr250 - 999Serves London, EnglandServices provided
See all 42 projectsDreamzTech Solutions is a custom software development company specializing in tailored and bespoke software creation. Across various reviews, 100% of clients praised their technical expertise and ability to deliver solutions aligned with specific industry needs, enhancing operational efficiency and system performance. Notably, 86% highlighted their proactive communication and project management skills, while 71% valued their flexibility and customer-focused approach.
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$5,000+$25 - $49 / hr10 - 49London, England
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Countdown Ventures is an application development firm. The London, England-based company was launched in 2023. Their services include Mobile App Development and Web Development.
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$5,000+$150 - $199 / hr10 - 49London, England
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Cloud consulting & SI company theCTO was launched in 2016. The agency focuses on cloud consulting & SI and Custom Software Development, and is small.
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$1,000+$25 - $49 / hr10 - 49London, England
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NEED Global Technology & Innovations Limited is a small web design company. They specialize in Web Design and Custom Software Development and were founded in 2021.
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$1,000+$50 - $99 / hr10 - 49London, England
Services provided
Established in 2018, Ictnet Limited is a small IT strategy consulting company. Their team offers IT strategy consulting and BI & big data consulting & SI.
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UndisclosedUndisclosed10 - 49London, England
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InnoSoftSolution is a Digital Strategy company established in 2015. Their team specializes in Digital Strategy and Social Media Marketing.
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Featured
What are Featured Providers?
$10,000+$25 - $49 / hr10 - 49Serves London, EnglandServices provided
See all 37 projectsTallium Inc. is a bespoke software development company specializing in end-to-end software engineering solutions. Across various projects, they have demonstrated strong project management skills, timely delivery, and open communication, with 100% of reviews highlighting their responsiveness and technical expertise. Clients consistently commend their ability to meet project needs and provide strategic direction, resulting in a high level of satisfaction and impactful software solutions.
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$1,000+$150 - $199 / hr10 - 49London, England
Services provided
Socium is a small London, England-based IT strategy consulting company. Their services include IT strategy consulting and IT managed services.
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$5,000+$50 - $99 / hr10 - 49London, England
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Yurkol LTD is an IT strategy consulting company. Established in 2011, the company is located in London, England. Their services include IT strategy consulting and cloud consulting & SI.
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$1,000+$25 - $49 / hr10 - 49Isleworth, England
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Optimiserz is a call center. Launched in 2017, the firm is headquartered in Isleworth, England and Lahore, Pakistan. Their team focuses on Call Center Services and Search Engine Optimization.
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$5,000+$25 - $49 / hr10 - 49London, England
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Founded in 2022, Coderacle, a small UX design company, is located in London, England. Their team specializes in UX/UI Design and Custom Software Development.
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$1,000+$25 - $49 / hr10 - 49Hounslow, England
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Britnex Solution Ltd is a SEO company founded in 2021. The small team specializes in Search Engine Optimization and UX/UI Design.
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Undisclosed$25 - $49 / hr10 - 49London, England
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UX design company Yarqat LTD is located in London, England and Kuwait City, Kuwait. Founded in 2023, the team focuses on UX/UI Design and Custom Software Development.
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UndisclosedUndisclosed10 - 49Harrow, England
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Azentra Technologies, a social media marketing firm, is located in Harrow, England. Launched in 2025, the team focuses on Social Media Marketing and Search Engine Optimization.
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$1,000+< $25 / hr10 - 49London, England
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SEO services firm Cyberonics Limited is located in London, England. Established in 2025, the team specializes in Search Engine Optimization and cloud consulting & SI.
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$1,000+$25 - $49 / hr10 - 49London, England
Services provided
Established in 2023, Scalix Enterprise Solutions LLP is an UX design agency. Based in Mumbai, India and London, England, the team provides UX/UI Design and cloud consulting & SI.
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$1,000+$25 - $49 / hr10 - 49London, England
Services provided
Founded in 2024, BYTEOPS LTD is an IT strategy consulting company. Their services include IT strategy consulting and Cybersecurity.
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$1,000+Undisclosed10 - 49London, England
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Located in London, England, Studio Slub is a small branding agency. Their services include Branding and Web Design.
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$1,000+Undisclosed50 - 249London, England
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Based in London, England, Enqura Information Technologies is a midsize AI company. Their services include Artificial Intelligence and Generative AI.
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$25,000+$100 - $149 / hr50 - 249London, England
Services provided
Web development firm Visionary Web Designs UK was established in 2012. In London, England, the team focuses on Web Development and Mobile App Development.
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UndisclosedUndisclosed50 - 249London, England
Services provided
Conjura is a data analytics company. Located in Dublin, Ireland and London, England, the team specializes in BI & big data consulting & SI and Custom Software Development.
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$10,000+$200 - $300 / hr10 - 49London, England
Services provided
Crowdform, a Product Design company, is based in London, England. Their services include Product Design and Custom Software Development.
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$10,000+$50 - $99 / hr10 - 49London, England
Services provided
Headquartered in London, England, Lolly Co is a small Enterprise App Modernization company. The team specializes in Enterprise App Modernization and Digital Strategy.
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$1,000+< $25 / hr10 - 49England, England
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Based in England, England, TechXect is a software development firm. They offer Custom Software Development and E-Commerce Development.
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$5,000+$25 - $49 / hr50 - 249London, England
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App development firm SGC Ventures was founded in 2011. The team focuses on Mobile App Development and E-Commerce Development.
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$100,000+$50 - $99 / hr50 - 249Richmond upon Thames, England
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Estafet is a midsize custom software development firm. Launched in 2002, the team provides Custom Software Development and Artificial Intelligence.
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$10,000+$100 - $149 / hr2 - 9Canary Wharf, England
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Software Major is a software development company and Cybersecurity company established in 2005. The firm specializes in Custom Software Development and Cybersecurity, and is small.
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$1,000+$150 - $199 / hr10 - 49London, England
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Averox Solutions Limited. Is an IT strategy consulting company. The team provides IT strategy consulting and Cybersecurity and is headquartered in London, England and Wilmington, Delaware.
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$50,000+$50 - $99 / hr10 - 49City of London, England
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Systems iO Ltd is a small Low/No Code Development company. They focus on Low/No Code Development and Robotics Process Automation and were established in 2019.
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$10,000+$25 - $49 / hr250 - 999London, England
Services provided
Established in 2018, Crownsoft is a midsize mobile app development firm. Their team specializes in Mobile App Development and Product Design.
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$5,000+$50 - $99 / hr10 - 49London, England
Services provided
Mvp.Pro is a software development firm launched in 2020. The small team provides Custom Software Development and Web Development.
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$10,000+$25 - $49 / hr50 - 249London, England
Services provided
Deverx Ltd, a web development firm, is headquartered in London, England. The team offers Web Development and E-Commerce Development.
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$1,000+$25 - $49 / hr50 - 249Sharjah, United Arab Emirates
Services provided
DOT LABS is a business intelligence company. Based in Sharjah, United Arab Emirates and Lahore, Pakistan, their team offers BI & big data consulting & SI and Artificial Intelligence.
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Undisclosed< $25 / hrFreelancerLondon, England
Services provided
Epicalyx Solutions is a custom software development company. Their team is in London, England and focuses on Custom Software Development and Social Media Marketing.
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$1,000+$25 - $49 / hr50 - 249Ilford, England
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Technologie 24 is an IT managed services company based in Ilford, England and Ahmedabad, India. They provide IT managed services and Custom Software Development.
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Undisclosed< $25 / hr50 - 249Orpington, England
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See all 1 projectsSunrise Technology is a premier UK-based technology outsourcing and software development company, dedicated to helping businesses accelerate growth through innovative, tailor-made IT solutions. With
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$50,000+< $25 / hr50 - 249London, England
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Micro Biz is a midsize Digital Strategy company. They specialize in Digital Strategy and Mobile & App Marketing and were launched in 2010.
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$25,000+$50 - $99 / hr50 - 249Pune, India
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Web development firm Hartley Lab is based in Pune, India and Singapore, Singapore. Established in 2011, the team focuses on Web Development and Custom Software Development.
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Undisclosed$25 - $49 / hr50 - 249London, England
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Synycs Group is a Digital Strategy company located in London, England. The team provides Digital Strategy and Search Engine Optimization.
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$10,000+$150 - $199 / hr2 - 9London, England
Services provided
Reedon Technologies is a web design agency. Located in London, England, the agency provides Web Design and Web Development.
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$5,000+$50 - $99 / hr10 - 49Watford, England
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See all 1 projectsAt Bellosoft, we believe technology should empower people, connect opportunities, and unlock growth. Founded with a global mindset, our agency partners with businesses across industries to design
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Undisclosed< $25 / hr2 - 9London, England
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In London, England and Muang Pattaya, Thailand, Bytemaster Solutions is a software development company. The team offers Custom Software Development and Web Development.
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Undisclosed$50 - $99 / hr2 - 9London, England
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Arthur Russell Group is a big data analytics company founded in 2024. Their services include BI & big data consulting & SI and cloud consulting & SI.
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Undisclosed< $25 / hr2 - 9London, England
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See all 1 projectsWebventure Solutions helps brands scale with digital services, including custom software solutions, website development remote hiring, android and iOS mobile applications development, e-stores
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$1,000+< $25 / hr2 - 9London, England
Services provided
Evan Tech Ltd. Is a London, England-based social media marketing agency. Their services include Social Media Marketing and Web Design.
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$5,000+$25 - $49 / hr2 - 9London, England
Services provided
DevFinn Ltd is a web development company. They are based in London, England and have small team of experts. Their services include Web Development and Mobile App Development.
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$1,000+$25 - $49 / hr2 - 9London, England
Services provided
Small app development firm Devlyte Technologies, is based in London, England and Dubai, United Arab Emirates. The team offers Mobile App Development and Artificial Intelligence.
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$1,000+$25 - $49 / hr2 - 9London, England
Services provided
Raagz IT Solutions, a small user experience company, is headquartered in London, England and Ahmedabad, India. The team offers UX/UI Design and cloud consulting & SI.
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$1,000+Undisclosed2 - 9London, England
Services provided
Shiveon ltd is a branding company. The London, England-based team provides Branding and UX/UI Design.
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$1,000+Undisclosed2 - 9London Colney, England
Services provided
Lizzard Tech Ltd is a small London Colney, England-based IT strategy consulting company. The team specializes in IT strategy consulting and IT managed services.
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List of London's Top 15 Software Companies | Top 15 London Software Developers
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$50,000+$25 - $49 / hr250 - 999London, England
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
40% Custom Software Development60% Other -
$25,000+$50 - $99 / hr1,000 - 9,999Woodbridge Township, NJ
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
30% Custom Software Development70% Other -
$25,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
39.5/40.019.6/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Custom Software Development55% Other -
$10,000+$25 - $49 / hr250 - 999London, England
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
25% Custom Software Development75% Other -
$50,000+$50 - $99 / hr1,000 - 9,999London, England
Ability to deliver
39.3/40.020/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
20% Custom Software Development80% Other -
$10,000+$50 - $99 / hr50 - 249Toronto, Canada
Ability to deliver
39.1/40.019.6/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
45% Custom Software Development55% Other -
$10,000+$50 - $99 / hr250 - 999Novi Sad, Serbia
Ability to deliver
39/40.019.4/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
60% Custom Software Development40% Other -
$50,000+$150 - $199 / hr250 - 999Ljubljana, Slovenia
Ability to deliver
39/40.019/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
25% Custom Software Development75% Other -
$1,000+< $25 / hr50 - 249Hertfordshire, England
Ability to deliver
39.2/40.020/20 Reviews9.9/10 Clients & Experience9.3/10 Market PresenceService focus
35% Custom Software Development65% Other -
$25,000+$50 - $99 / hr50 - 249London, England
Ability to deliver
38.1/40.018.2/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
50% Custom Software Development50% Other -
$50,000+$25 - $49 / hr1,000 - 9,999London, England
Ability to deliver
37.6/40.017.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
30% Custom Software Development70% Other -
$25,000+< $25 / hr1,000 - 9,999London, England
Ability to deliver
37.3/40.017.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
50% Custom Software Development50% Other -
$25,000+$25 - $49 / hr50 - 249London, England
Ability to deliver
37.3/40.017.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Custom Software Development60% Other -
$50,000+$25 - $49 / hr1,000 - 9,999London, England
Ability to deliver
37.2/40.017.4/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Custom Software Development55% Other -
$1,000+$25 - $49 / hr1,000 - 9,999London, England
Ability to deliver
38.8/40.019.4/20 Reviews9.6/10 Clients & Experience9.8/10 Market PresenceService focus
15% Custom Software Development85% Other -
$50,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
36.6/40.016.6/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
50% Custom Software Development50% Other -
$25,000+$25 - $49 / hr50 - 249London, England
Ability to deliver
36.5/40.017.6/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
40% Custom Software Development60% Other -
$25,000+$50 - $99 / hr1,000 - 9,999London, England
Ability to deliver
36.2/40.016.2/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
50% Custom Software Development50% Other -
$10,000+$100 - $149 / hr10 - 49London, England
Ability to deliver
37.3/40.017.8/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
40% Custom Software Development60% Other -
$50,000+$25 - $49 / hr250 - 999London , England
Ability to deliver
36.3/40.016.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
25% Custom Software Development75% Other -
$10,000+$100 - $149 / hr250 - 999London, England
Ability to deliver
37.8/40.018.6/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
20% Custom Software Development80% Other -
$10,000+$25 - $49 / hr50 - 249London, England
Ability to deliver
35.8/40.016.6/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
40% Custom Software Development60% Other -
$10,000+$50 - $99 / hr50 - 249London, England
Ability to deliver
37.7/40.018.8/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
30% Custom Software Development70% Other -
$25,000+$25 - $49 / hr1,000 - 9,999London, England
Ability to deliver
35.6/40.015.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
20% Custom Software Development80% Other -
$75,000+$50 - $99 / hr1,000 - 9,999London, England
Ability to deliver
35.5/40.016.4/20 Reviews9.8/10 Clients & Experience9.2/10 Market PresenceService focus
40% Custom Software Development60% Other -
$10,000+$25 - $49 / hr250 - 999London, England
Ability to deliver
37.4/40.017.8/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
20% Custom Software Development80% Other -
$25,000+$25 - $49 / hr50 - 249London, England
Ability to deliver
37.4/40.017.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
30% Custom Software Development70% Other -
$50,000+$150 - $199 / hr250 - 999London, England
Ability to deliver
35.3/40.015.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
30% Custom Software Development70% Other -
$10,000+$25 - $49 / hr250 - 999London, England
Ability to deliver
35.7/40.016.2/20 Reviews9.7/10 Clients & Experience9.8/10 Market PresenceService focus
25% Custom Software Development75% Other -
$100,000+$50 - $99 / hr1,000 - 9,999Wrocław, Poland
Ability to deliver
36.7/40.016.8/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
16% Custom Software Development84% Other
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London Software Developer FAQs
Working with a local team offers unique, strategic advantages that a remote partner may not be able to provide, including:
- Time-zone alignment with the rest of Europe for real-time collaboration.
- Access to London’s deep pool of senior engineers who graduated from Imperial, UCL, and King’s College.
- Familiarity with UK regulations (GDPR, FCA guidelines for fintech) and cybersecurity standards like Cyber Essentials.
- Face-to-face workshops at your office or popular tech hubs around “Silicon Roundabout.”
Rates for hiring a London-based software development firm vary based on several factors, including complexity, team seniority, and technical requirements. To give you a better understanding, here’s a breakdown of costs based on Clutch data:
- Hourly: £75 – £150 for most mid-sized agencies, while boutique specialists may charge up to £200.
- Fixed-price MVP: £30,000 – £80,000 for a 3 – 6 month build.
- Enterprise platforms: £150,000+ for multi-year, multi-team engagements.
London rates are higher than many UK regions, but proximity, talent density, and strategic guidance often justify the premium costs.
Thanks to London’s diverse economy, experienced software development agencies regularly build solutions for clients from various industries and niches, such as:
- Fintech and insuretech
- E-commerce and retail tech
- Healthtech and med-device integrations
- Media, gaming, and streaming platforms
- Proptech and smart-city applications
Many teams also offer sector-specific compliance expertise, such as ISO-13485 for healthcare or PCI DSS for payments.
Start by defining success metrics—launch date, KPIs, budget cap—and shortlist agencies with matching case studies. After that, review Clutch client feedback for proof of the following:
- Transparent, agile workflows (e.g., weekly sprints, demo days)
- Strong communication skills and cultural fit
- Clear IP ownership terms and NDA policies
- Relevant tech-stack certifications (AWS Partner, Microsoft Gold, etc.)
Arrange technical interviews with lead developers, not just sales reps, before signing an agreement.
- Vague estimates or refusal to detail sprint deliverables
- No local references despite claiming London headquarters
- Overreliance on junior offshore teams without senior oversight
- Lack of cybersecurity or GDPR compliance processes
- “One-size-fits-all” proposals that ignore your business goals
A credible agency will proactively address these areas and tailor their approach to your needs. It’s better to be meticulous when selecting prospective partners than to be contracted with an unfit team.