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.
$10,000+$50 - $99 / hr1,000 - 9,999Serves London, EnglandServices provided
See all 72 projectsInnowise is a bespoke software development company excelling in end-to-end services across various sectors, including healthcare and finance. The firm boasts a 100% satisfaction rate from reviewers, with significant praise for their project management and tailored solutions. Clients consistently highlight Innowise's responsiveness and technical expertise, with 90% of reviews mentioning their ability to deliver on time and within budget.
$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 / hr1,000 - 9,999London, EnglandServices provided
See all 47 projectsTatvaSoft is a custom software development company that offers bespoke software creation, full-stack software development, and tailored solutions to meet diverse client needs. Across various reviews, they are praised for their project management, technical expertise, and ability to deliver high-quality, end-to-end software development services on time. Approximately 100% of clients express satisfaction with their professionalism, collaborative approach, and commitment to continuous improvement.
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$25,000+$50 - $99 / hr10 - 49Maidenhead, England
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See all 2 projectsSoftware Outsourcing Services (SOS) Ltd specializes in custom software development, offering expertise in full-stack development and UI/UX design. They consistently deliver projects on time and with high-quality results, as evidenced by positive client feedback highlighting their impressive pace and skilled design team. Approximately 90% of reviewers note their strong project management and effective use of technology.
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$10,000+$50 - $99 / hr10 - 49London, England
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Headquartered in Prague, Czech Republic and London, England, DX Heroes is a software development firm. The team provides Custom Software Development and IT strategy consulting.
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Featured
What are Featured Providers?
$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 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.
$10,000+$25 - $49 / hr50 - 249Serves London, EnglandServices provided
See all 4 projectsAttrecto Next Tech Digital Solutions is a custom software development company known for its expertise in bespoke software creation and end-to-end software development services. The firm has received overwhelmingly positive feedback, with clients highlighting their adaptability and effective communication. Approximately 100% of reviewers commend their ability to listen and adjust to client needs.
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$5,000+$25 - $49 / hr250 - 999Luton, England
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See all 4 projectsQwerty Experts is a Custom Software Creation company specializing in tailored software development services such as website updates and custom code implementation. The majority of feedback is positive, with clients praising their excellent project management, timely delivery, and effective communication. Approximately 90% of reviews highlight their ability to understand client needs and deliver satisfactory, high-quality results.
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$25,000+$25 - $49 / hr10 - 49London, England
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In London, England, DEVITGROUP LTD is a custom software development company. Established in 2020, the team offers Custom Software Development and Web Development.
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$50,000+$50 - $99 / hr1,000 - 9,999Guildford, England
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See all 30 projectsIntellias is a leading provider of bespoke software development services, offering expertise in custom software creation and full stack software development. The company has received overwhelmingly positive feedback, with clients praising their professionalism, adaptability, and strong project management skills. Approximately 90% of reviewers commend their trustworthiness and ability to deliver high-quality, nearly bug-free solutions, underscoring their reputation as a reliable partner in managed software development.
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$5,000+$50 - $99 / hr2 - 9London, England
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The App Geeks is a custom software development firm. Their small team is located in London, England. Their services include Custom Software Development and UX/UI Design.
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$25,000+$50 - $99 / hr250 - 999London, England
Services provided
See all 6 projectsObjectivity Ltd. - Out of Business was a bespoke software development company renowned for its comprehensive software engineering capabilities. The company consistently received positive feedback, with nearly 100% of reviews praising their technical expertise and effective project management. Clients highlighted their proficiency in custom software creation and full stack software development, noting the company's ability to deliver complex projects on time and within budget.
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Featured
What are Featured Providers?
$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 45 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+$100 - $149 / hr10 - 49Great Baddow, England
Services provided
See all 5 projectsObjective is a bespoke software development company with a strong focus on tailored solutions for diverse business needs. The overall feedback from reviewers is overwhelmingly positive, citing their quick response times, excellent communication, and ability to effectively meet project requirements. Approximately 100% of reviewers appreciate their attention to client needs and proactive problem-solving approach.
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$1,000+$50 - $99 / hr2 - 9London, England
Services provided
See all 1 projectsEthan Crabb Developing specializes in project development, particularly for SaaS startups. Reviews indicate that while they offer competitive pricing and are consistently reachable, there was a miscalculation in project timelines, although they addressed the issue by providing a refund. Overall, clients appreciate their value for cost and commitment to communication.
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$1,000+$100 - $149 / hr2 - 9Harlow, England
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See all 6 projectsJapeto is a custom software creation company specializing in tailored and end-to-end software development solutions. Reviews indicate a high level of client satisfaction, with approximately 100% of feedback highlighting their strong project management, timely delivery, and effective communication. Customers appreciate Japeto's ability to create user-friendly and efficient software solutions, demonstrating their proficiency in software engineering and development.
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$1,000+< $25 / hr50 - 249Slough, England
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See all 7 projectsTechno Infonet is a professional custom software development company recognized for its tailored software development services. They are praised for delivering projects on time, with a strong emphasis on quality and effective management. Notably, 100% of reviewers highlight their professionalism, project management expertise, and timely delivery, with no significant areas for improvement mentioned.
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UndisclosedUndisclosed2 - 9London, England
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Headquartered in London, England, Realize Security is a small cloud consulting & SI company. Their services include cloud consulting & SI and Cybersecurity.
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$10,000+$150 - $199 / hr10 - 49London, England
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Be Memorable, a small software development company, is in London, England. Their services include Custom Software Development and E-Commerce Development.
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UndisclosedUndisclosed10 - 49City of London, England
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Tides Digital, a big data company, is located in City of London, England and Berlin, Germany. They offer BI & big data consulting & SI and cloud consulting & SI and were established in 2014.
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UndisclosedUndisclosed10 - 49London, England
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Captavio Technologies Limited is a London, England-based Cybersecurity company. They focus on Cybersecurity and Custom Software Development and were established in 2021.
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$10,000+$50 - $99 / hr50 - 249London, England
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See all 15 projectsACS | AI Powered Web and Mobile Apps is a custom software development company specializing in tailored solutions for diverse industry needs. The company consistently receives positive feedback, with clients praising its real-time communication improvements, responsive project management, and purposeful AI integrations. Approximately 100% of reviewers commend the firm's ability to deliver on time and its genuine understanding of client business needs.
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UndisclosedUndisclosed50 - 249London, England
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Formidable is an IT managed services company. They are headquartered in Seattle, Washington and London, England. Their team specializes in IT managed services and Custom Software Development.
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UndisclosedUndisclosed50 - 249London, England
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Cloud consulting & SI company Consleague offers cloud consulting & SI and CRM consulting and SI. They are in London, England.
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UndisclosedUndisclosed50 - 249London, England
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Cybersecurity company ONEiO is based in Helsinki, Finland and London, England. They specialize in Cybersecurity and IT managed services.
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UndisclosedUndisclosed50 - 249Redhill, England
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Codea Technologies Inc. Qatar is a midsize social media marketing agency established in 2007. Their team offers Social Media Marketing and Search Engine Optimization.
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UndisclosedUndisclosed50 - 249London, England
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Launched in 2013, KWA Analytics is a midsize Architectural Design company. Their services include Architectural Design and Custom Software Development.
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UndisclosedUndisclosed1,000 - 9,999London, England
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Located in London, England, AND Digital is an user experience company. They specialize in UX/UI Design and Product Design.
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UndisclosedUndisclosed50 - 249City of London, England
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ISB Global Smart Solutions | ISB Global Ltd. Is a midsize City of London, England-based Low/No Code Development company. Their services include Low/No Code Development and IT strategy consulting.
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UndisclosedUndisclosed50 - 249London, England
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Established in 2017, Advisority is a big data company. The team offers BI & big data consulting & SI and CRM consulting and SI and is located in London, England and București, Romania.
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$50,000+$50 - $99 / hr250 - 999Farnborough, England
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See all 55 projectsOne Beyond is a bespoke software development company offering custom software creation and full stack software development services. Their reviews reflect a high level of expertise and professionalism, with around 90% of feedback being positive, highlighting their competency in software engineering and project management. Reviewers frequently commend their technical strength, flexibility, and collaborative approach, with approximately 65% of them mentioning the company's effective communication and agile methodology.
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$5,000+$100 - $149 / hr2 - 9London, England
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Dynacom Solutions is a software development company. The small London, England-based team focuses on Custom Software Development and Web Development. The firm was launched in 2021.
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$5,000+$100 - $149 / hr2 - 9London, England
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StartHQ is a London, England-based custom software development company. The team focuses on Custom Software Development and Other Digital Marketing.
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UndisclosedUndisclosedFreelancerEnfield, England
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Founded in 2021, Effinovate is a small software development company and Business Consulting company. Their team specializes in Custom Software Development and Business Consulting.
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$50,000+$150 - $199 / hr10 - 49Hemel Hempstead, England
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See all 3 projectsArishi is a bespoke software development company known for its exemplary project management and technical expertise. They successfully upgraded the technology infrastructure for Medical Realities Ltd, with reviews highlighting their friendly approach and technical understanding. With no noted areas for improvement, Arishi stands out for its tailored software development solutions.
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$25,000+$50 - $99 / hr10 - 49Luton, England
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See all 1 projectsDovelp Limited is a digital solutions company specializing in website design, development, and digital marketing. They are highly praised for their excellent service and innovative design ideas, with 100% of the reviews highlighting their exceptional performance and user-friendly deliverables. Clients commend their effective communication and project management, suggesting no areas for improvement.
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Undisclosed$25 - $49 / hr50 - 249Richmond, England
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Gislen Software is a custom software development firm established in 1994. Their team specializes in Custom Software Development and Web Development.
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UndisclosedUndisclosed2 - 9London, England
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Based in London, England, Kommol is a small cloud consulting & SI company. Their services include cloud consulting & SI and Custom Software Development.
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UndisclosedUndisclosed2 - 9London, England
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Established in 2011, Million Solutions is a small London, England-based software development company. Their team provides Custom Software Development and cloud consulting & SI.
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UndisclosedUndisclosed2 - 9London, England
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Colourblack, an IT strategy consulting company, was established in 2004. The small team offers IT strategy consulting and IT staff augmentation.
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$25,000+$150 - $199 / hr2 - 9London, England
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Axamattic is a web design agency. Launched in 2024, the team provides Web Design and Custom Software Development.
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$250,000+$25 - $49 / hr10 - 49London, England
Services provided
See all 1 projectsSAQAYA offers Bespoke Software Development and Tailored Software Solutions, specializing in Custom Software Development and CS Dev services. Reviews highlight their strong commitment to client goals, effective project management, and a focus on delivering high-quality and value-driven solutions. Clients appreciate their transparent communication and alignment with client values, contributing to successful project outcomes.
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$10,000+$25 - $49 / hr50 - 249London, England
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See all 1 projectsDamex Digital Ltd specializes in social media marketing, encompassing content creation, analytics, and influencer outreach. Reviews highlight their innovative strategies, effective collaboration, and strong customer service. Clients commend their ability to increase customer satisfaction and reduce costs, positioning them as a reliable and proficient partner for social media endeavors.
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$1,000+$25 - $49 / hr2 - 9London, England
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PunterDigital is a website development company. Launched in 2018, the company is in Liverpool, England and London, England. Their services include Web Development and Custom Software Development.
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$10,000+$150 - $199 / hr10 - 49London, England
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Health iQ is a big data analytics company. They are in London, England and have small team of experts. Their services include BI & big data consulting & SI and Marketing Strategy.
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$10,000+$100 - $149 / hr10 - 49London, England
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Neutral Digital is an AR/VR development company. The London, England-based company specializes in AR/VR development and Custom Software Development.
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$5,000+$150 - $199 / hr10 - 49London, England
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Filament AI is a London, England-based artificial intelligence firm. They offer Artificial Intelligence and Other Application Development and were founded in 2016.
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UndisclosedUndisclosed10 - 49London, England
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Small custom software development firm WAAT Ltd., is in London, England. The team specializes in Custom Software Development and Branding.
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UndisclosedUndisclosed10 - 49London Bridge, England
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Digital Marmalade is a small software development firm. They offer Custom Software Development and UX/UI Design and were launched in 1997.
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UndisclosedUndisclosed10 - 49London, England
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CRM consulting and SI company Creation Technology was established in 2006. The team provides CRM consulting and SI and Custom Software Development and is located in London, England.
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UndisclosedUndisclosed10 - 49City of London, England
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XTG Technologies is a small software development company in City of London, England and Kochi, India. The team offers Custom Software Development and Web Development.
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UndisclosedUndisclosed10 - 49London, England
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Founded in 2016, Koda Staff is a Staffing company. The firm focuses on Staffing and Recruiting, and is small.
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UndisclosedUndisclosed10 - 49Hertfordshire, England, England
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IOCO UK | iOCO Solutions Limited is a big data company founded in 2008. Located in Hertfordshire, England, England, the team offers BI & big data consulting & SI and cloud consulting & SI.
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UndisclosedUndisclosed10 - 49London, England
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Based in London, England and Cape Town, South Africa, riivo Ltd is a Low/No Code Development company. The team offers Low/No Code Development and CRM consulting and SI.
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$10,000+$300+ / hr2 - 9London, England
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Qxotk.ai, a custom software development company, is in London, England. Founded in 2023, the team specializes in Custom Software Development and Web Development.
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$50,000+$300+ / hr2 - 9London, England
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BLAKFRAME is an Engineering company. Headquartered in London, England, the team offers Engineering and Custom Software Development.
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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 - 999San Francisco, CA
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Custom Software Development60% Other -
$25,000+$50 - $99 / hr250 - 999Gliwice, Poland
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
45% Custom Software Development55% Other -
$25,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
30% Custom Software Development70% Other -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
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 - 9,999Warszawa, Poland
Ability to deliver
39.3/40.020/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
20% Custom Software Development80% Other -
$25,000+$50 - $99 / hr250 - 999Novi Sad, Serbia
Ability to deliver
38.8/40.019.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
60% Custom Software Development40% Other -
$10,000+$50 - $99 / hr50 - 249Toronto, Canada
Ability to deliver
38.7/40.019.2/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
45% Custom Software Development55% 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
37.7/40.017.8/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
50% Custom Software Development50% Other -
$50,000+$25 - $49 / hr1,000 - 9,999Vienna, VA
Ability to deliver
37.6/40.017.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
30% Custom Software Development70% Other -
$50,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
37.4/40.017.4/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
50% Custom Software Development50% Other -
$25,000+< $25 / hr1,000 - 9,999Ahmedabad, India
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 - 9,999Reston, VA
Ability to deliver
37.2/40.017.4/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
45% Custom Software Development55% Other -
$50,000+$150 - $199 / hr250 - 999New York, NY
Ability to deliver
39/40.019/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
20% Custom Software Development80% 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 -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
36.2/40.017.6/20 Reviews10/10 Clients & Experience8.6/10 Market PresenceService focus
40% Custom Software Development60% 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 - 999Toronto, Canada
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 -
$25,000+$50 - $99 / hr1,000 - 9,999Tallinn, Estonia
Ability to deliver
35.8/40.015.8/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
50% Custom Software Development50% Other -
$25,000+$25 - $49 / hr1,000 - 9,999Denver, CO
Ability to deliver
35.6/40.015.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
20% Custom Software Development80% Other -
$10,000+$50 - $99 / hr10 - 49Kyiv, Ukraine
Ability to deliver
37.7/40.018.8/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
35% Custom Software Development65% 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 - 999Warszawa, Poland
Ability to deliver
37.4/40.017.8/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
20% Custom Software Development80% Other -
$50,000+$150 - $199 / hr250 - 999New York, NY
Ability to deliver
35.3/40.015.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
30% Custom Software Development70% Other -
$25,000+$25 - $49 / hr50 - 249London, England
Ability to deliver
37.2/40.017.4/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
30% Custom Software Development70% Other -
$10,000+$25 - $49 / hr50 - 249Cape Town, South Africa
Ability to deliver
35.2/40.016/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
40% Custom Software Development60% Other -
$100,000+$50 - $99 / hr1,000 - 9,999North Miami Beach, FL
Ability to deliver
36.7/40.016.8/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
16% Custom Software Development84% Other -
$10,000+$50 - $99 / hr50 - 249London, England
Ability to deliver
37.1/40.018.2/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
30% Custom Software Development70% Other
Latest Software Developers Articles
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Software Development Metrics That Matter to Business Leaders (With Examples)
Tracking and reporting key metrics is paramount to ensuring the success of your software development project. Understand these benchmarks to improve...
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.