All Software Development Services in London
KeyToTech
(0 review)We help startups and companies develop and launch agile software products
Top awardedKeyToTech is a software development agency. We deliver AI, mobile, web, and backend services to companies worldwide.19 works in Software DevelopmentLocated in London, United Kingdom (+1)From €5,000 for Software DevelopmentWorked in Education (+12)Speaks English, German(+2)11-50 membersDIGIVELL Growth & Tech Labs
5(3 reviews)Growth & Tech Lab | Engineering Measurable Commercial Growth
RecommendedDIGIVELL operates as a Growth & Tech Lab rather than a traditional advertising agency. We bridge the gap between engineering, analytics, technical SEO, and performance marketing to turn customer acquisition into predictable, scalable revenue. Operating across Sofia, London, and Istanbul, we partner with ambitious brands to build robust digital infrastructure, optimize conversion funnels, and execute high-ROI acquisition campaigns. What sets us apart: • Integrated Capabilities: Technical development, conversion tracking (server-side tagging, API/payment integrations), SEO architecture, and paid media managed under one roof. • 100% In-House Delivery: We do not outsource our core services. Every audit, campaign, and technical implementation is built and managed by our specialized in-house team. • Dedicated Accountability: A single senior growth lead responsible for direct communication, agile execution, and transparent reporting. • Measurable Commercial Focus: We prioritize qualified acquisition and bottom-line growth over vanity reach metrics. Whether restructuring paid acquisition across Google and Meta, engineering high-converting web platforms, or building international go-to-market positioning, we build systems designed to scale.Looking for work in Software DevelopmentLocated in London, United Kingdom (+2)From €3,000 for Software DevelopmentWorked in Industrial Goods & ServicesSpeaks English, Bulgarian(+1)11-50 membersTRIARE
4.9(11 reviews)TRIARE unlocks IT potential of YOUR business
TRIARE is a WEB and MOBILE software development company based in Europe. We are delighted to offer our services as your long-term partner, taking all technical matters off your shoulders and allowing you to focus on your business development. YOU WILL GET: ✔ In-house team . Work with a dedicated team that is 100% focused on your product and located in the same office. ✔ Efficiency & transparency , as our process is based on Scrum methodology and managed by certified Scrum Masters. ✔ Fast result. Working with us, you will get the first result in 1 week. ✔ High quality, as TRIARE has well-established processes of software development and experienced specialists. ✔ Full cycle development . Our company covers all stages of development, handling everything from Discovery and prototyping to Design, development, and maintenance. ✔ IP rights . From the very beginning, you are the only owner of the intellectual property of your project materials: source code, design, documentation, etc. ✔ Warranty period will be provided for your system for free. ASPECTS OF OUR MINDSET: - Focused on results. We are focused on the result of your business with an understanding of the real goals and KPIs that our team should achieve. - Solution Provider. It means that we always come to you with solutions, not with questions. We take all technical aspects of the project off your shoulders, allowing you to focus on the marketing and business strategies. - We go the extra mile. Being a proactive company, we always think and take a step ahead. TECHNOLOGIES WE USE: - Mobile app development: Kotlin, Java, Swift, Objective-C. - Cross-platform development: Flutter, React Native. - Web frameworks: Node.JS, React.JS, PHP, Ruby on Rails.8 works in Software DevelopmentLocated in Greater London, United Kingdom (+3)From €10,000 for Software DevelopmentWorked in Others (+20)Speaks English, Ukrainian51-200 membersAscendro Technologies
4.8(15 reviews)Growing with Technology
Highly recommendedTop awardedAbout Ascendro Ascendro is a German-Romanian engineering company that builds and runs software-critical systems. Around 45 senior engineers, working from Timisoara and Germany. Most software vendors treat go-live as the finish line: the system is delivered and operating it becomes someone else's problem. We work the other way around. We take end-to-end responsibility for architecture, delivery and production operations - uptime, incidents, deployments, security - and stay accountable for how the platform behaves for years afterwards. This matters most when software becomes business-critical faster than the infrastructure around it matured. A pilot turns into a production service. The internal team knows the domain but was never sized to run a platform 24/7. That is where we are useful. We do not rebuild operations for every client. Our DevOps Foundation is a reusable, cloud-agnostic backbone for CI/CD, monitoring, logging, authentication and backups, already running across multiple live environments. It moves systems into stable production without a client having to hire a platform team - and we can operate it afterwards. Track record BMW DriveNow - the city-scale shared mobility platform; Ariston and Wolf - connected heating and manufacturing-critical environments; Thinksurance - a regulated, high-availability insurance distribution platform; Samsung - release management for large-scale software delivery; Several of these engagements have run for many years. We are certified to ISO 27001 and TISAX, staff senior squads rather than interchangeable headcount, keep 85-90% engineer retention, and give clients direct founder access instead of account managers.51 works in Software DevelopmentLocated in London, United Kingdom (+2)From €5,000 for Software DevelopmentWorked in Automotive (+18)Speaks English, French(+2)11-50 membersSigli
5(11 reviews)Software development, Web development, Data Solutions, AI, ML.
Highly recommendedSigli is a forward-thinking software development company specializing in digital product development and digital transformation. Our mission, ‘ Data Science with Purpose, Innovation with Impact ’, drives us to transform innovative ideas into practical solutions. Our services encompass the entire development lifecycle, from initial concept to implementation, ensuring every product we build is high-quality, scalable, and future-proof. Sigli assists businesses in navigating the complexities of digital transformation, modernizing their operations, enhancing customer experiences, and maintaining a competitive edge in the ever-evolving digital landscape. Our team's deep expertise, combined with a commitment to leveraging the latest technologies and best practices, ensures we deliver impactful results for our clients. Our dedication to excellence is further demonstrated by our ISO/IEC 27001 certification, the leading standard for Information Security Management Systems (ISMS). This certification underscores our commitment to maintaining the highest standards of information security, making us a trusted partner for businesses looking to thrive in the digital age.20 works in Software DevelopmentLocated in London, United Kingdom (+2)From €10,000 for Software DevelopmentWorked in Hospitals & Healthcare (+12)Speaks English, Dutch(+2)51-200 membersInstinctools
5(10 reviews)Your AI-powered Engineering Partner
Top awardedMeet *instinctools - a global AI-powered software engineering company with over 25 years of experience. We help both SMBs and Enterprises build robust, scalable software solutions that excel in functionality and design. Our core services include: Agentic AI enablement Custom software development enhanced by deep AI expertise Digital product engineering Business process automation Legacy system modernization Advanced data analytics and visualization Cloud infrastructure and DevSecOps Headquartered in the USA (Maryland) and Europe (Germany), *instinctools offers convenient locations for meeting and collaborating directly with our clients. We have development centers in Poland, LATAM, India, and Kazakhstan that combine global expertise with a strong price-quality balance to ensure exceptional results across time zones. Our work is backed by ISO-certified quality standards, strategic partnerships with leading tech platform, and a long-standing commitment to engineering excellence. Instinctools holds a broad portfolio of regional and industry-specific certifications, including CIR, HIPAA, and other compliance frameworks required for regulated markets. The 2025 Annual Customer Satisfaction Index is 9.1 out of 10.4 works in Software DevelopmentLocated in London, United Kingdom (+4)From €10,000 for Software DevelopmentWorked in Construction (+10)Speaks English, German(+1)201-500 membersMagora
5(6 reviews)PRODUCT DEVELOPMENT TAILORED FOR YOUR BUSINESS
Magora is an AI, Web & Mobile product consultancy that offers digital services to businesses across a broad range of industries, including Healthcare, Education, Retail, eLearning and eCommerce. Whether a custom AI product, B2C or a B2B project, iOS or Android app, first of all, we take the time to understand your goals, your product and the end-user’s needs. Our software development cases are loved by users for their convenience and appreciated by customers for the real value they add to your business.4 works in Software DevelopmentLocated in London, United KingdomFrom €10,000 for Software DevelopmentWorked in Entertainment & Events (+9)Speaks English11-50 membersU1CORE
4.9(20 reviews)PARTNER IN CRIME FOR STRONG BUSINESSES.
Highly recommendedTop awardedWebsites · Branding · Software Website: https://www.u1core.com/ Book a call: https://calendly.com/hello-u1core/30min Most companies outgrow their digital before they notice. The business is strong, the team is good, the product works. But the website is still the first version, operations still live in spreadsheets, and the brand says nothing a competitor couldn't say. That's where we come in. WHAT WE DO · Websites — marketing sites, landing pages and platforms that sell before your team has to · Branding — identity and design systems that position you at the level you actually operate at · Software — web and mobile products, internal tools and operational systems that replace manual work WHY ONE TEAM Brand agencies do brand. Product studios do product. Outsourcing firms write code. The real problems sit between those disciplines — which is why we do all of it, under one contract, with one person accountable for the result. WHO WE WORK WITH Companies with real revenue and a team in place: founders and owners scaling past their first system, operators rebuilding for growth, and businesses entering a new market. WHERE WE'VE PROVEN IT $720M+ processed through a platform we built. Classified marketplaces with millions of listings. Trading exchanges and auction systems running in production. SaaS, fintech and marketplace products across 40+ projects. HOW WE START With a diagnostic, not a proposal. We look at your website, brand and operations, show where you lose trust, traffic and time — and what to fix first. LET'S TALK IF your business is strong but your website, brand or operations don't play at the same level yet.40 works in Software DevelopmentLocated in London, United KingdomFrom €5,000 for Software DevelopmentWorked in Hospitals & Healthcare (+20)Speaks English11-50 membersTOL Inc
5(3 reviews)Software built at the frontier of what's now possible.
RecommendedTake Off Labs is an AI-native software studio. We design, build, host and maintain products end to end, with AI woven through the process rather than bolted on at the end. Fourteen years of shipping, more than a hundred companies, across healthcare, fintech, e-commerce, real estate, logistics and maritime. We also build and run our own products, Doc2Data.io for document AI and Microsites.AI, which means the architecture decisions we recommend are ones we live with ourselves. How we work: prototypes that map real user journeys, AI-augmented build from the first commit, deployment on our own pipelines, error tracking and monitoring wired in from day one, and continuous improvement after launch. One studio owns the whole lifecycle, so nothing falls between teams. We scope with our own tooling and commit to fixed prices that hold. When scope changes, it goes through a formal change request rather than quietly appearing on an invoice. Based in the EU, working with clients across Europe, China, Australia and the US.2 works in Software DevelopmentLocated in London, United KingdomFrom €3,000 for Software DevelopmentWorked in Music (+4)Speaks English11-50 membersGUDRIX
5(3 reviews)Gudrix – Full-cycle UX/UI & development for Manufacturers, Tech-driven industries and Real Estate
RecommendedYOUR PARTNER TO BUILD DIGITAL PRODUCTS THAT PERFORM Gudrix is a full-cycle UX/UI and development partner for Manufacturers, Tech-driven industries, and Real Estate companies. Websites, web applications, e-commerce platforms, and internal tools - built for businesses where complexity is the norm and generic solutions don't cut it. 🔔 Book a Free Call: https://cal.com/ivan-fantalin-gudrix/30min OUR SERVICES: UX/UI Design – Discovery, UX research, wireframes, prototyping, design systems, and interface design for complex B2B products and platforms Web Development – Webflow, WordPress, React, Next.js, Node.js, custom full-stack builds, API integrations, CMS, e-commerce, and multi-role admin tooling E-Commerce – Shopify, WordPress and custom storefront builds with payment flows, product catalogues, and B2B procurement logic Digital Presence – Strategy, copywriting, SEO structure, and conversion-focused design for companies entering new markets or repositioning WHY GUDRIX: We know our lane. Manufacturers, real estate, and tech-driven companies. We understand how complex B2B buyers think, how industrial products need to be presented, and how high-stakes the digital touchpoint is in your sales cycle. One team, no handoffs. Designers and developers work together from kickoff to launch. Nothing gets lost between a design file and a live product. Built to perform, not just to look good. Every product we ship is conversion-focused, fast, and built around how your users actually operate – not how a template assumes they do. Full accountability. We don't hand off a Figma file and disappear. We own the outcome and act as your long-term partner. If your business is serious about its digital product and needs a partner who stays in it for the long run – let's talk.Looking for work in Software DevelopmentLocated in London, United KingdomBudget on requestWorked in Real Estate (+3)Speaks English11-50 membersDBETA
4.9(7 reviews)We engineer high-performance websites as structured systems—not pages.
RecommendedWe are a London-based digital engineering consultancy specialising in scalable, high-performance websites built for modern search and AI-driven discovery. Unlike traditional agencies, we don’t start with design. We start with structure, logic, and long-term performance. Every project is built on our proprietary framework — Dbeta Bones — developed through dedicated R&D to deliver faster build cycles (weeks, not months), reduced reliance on CMS platforms, and high-speed, low-bloat performance. We also embed machine-readable architecture, ensuring your website is understood by both search engines and AI systems. The result is not just a well-designed website, but a technically resilient, scalable system that compounds in value over time. What makes us different Most agencies build pages. We build systems. Our work is grounded in Structural Strategy — defining how your services, content, and proof connect before anything is designed. This creates clear user journeys, stronger authority signals, better search visibility, and long-term maintainability. We also implement a machine-legible data layer (AIDI), ensuring your digital presence is structured for modern discovery. How we work Audit & Discovery — identify risks and opportunities Architectural Blueprint — define structure and system logic Engineering & Build — deploy using Dbeta Bones Validation & QA — performance and accessibility testing Ongoing Evolution — continuous improvement without structural decay Who we’re best for We work with organisations that see their website as a core business asset, need long-term scalability, and value performance, structure, and clarity. We’re not the right fit for quick, low-cost or template-based projects. Results Faster builds, reduced maintenance, stronger search visibility, and a system that scales with your business.6 works in Software DevelopmentLocated in London, United KingdomFrom €10,000 for Software DevelopmentWorked in Construction (+4)Speaks English11-50 membersBlott
5(7 reviews)The Design & Technology Firm for AI Era
Top awardedAs a global AI consultancy, we specialise in end-to-end transformation for complex, highly regulated industries; including banking, insurance, capital markets, and wealth & asset management. We partner with ambitious leaders to build AI-native products, intelligent interfaces, and agentic systems that act with clarity and purpose.1 work in Software DevelopmentLocated in London, United KingdomFrom €10,000 for Software DevelopmentWorked in Banking & Financials (+3)Speaks English11-50 membersUASOFTDEV
5(3 reviews)Founder-led staff augmentation of AI-Ready Senior Developers and Dedicated Teams in 60 hours
UASOFTDEV is a founder-led staff augmentation of AI-Ready Dedicated Teams and Senior Software Engineers for small-mid companies. We believe AI doesn't replace experienced engineers. It makes the right engineers dramatically more effective. That's why every developer we provide uses AI as part of their daily workflow with tools like Claude, Cursor and GitHub Copilot, while all architecture, technical decisions, code reviews and production releases remain under experienced human ownership. Main engagement models. Staff Augmentation for companies looking to extend their existing engineering team with senior talent, and AI-Ready Dedicated Teams for businesses that need a complete delivery team with technical leadership capable of owning products, features or entire engineering initiatives. Every engagement is led directly by our Founders. Aleksey, CEO, works closely with clients to understand product goals, business priorities and team dynamics. Oleksandr, CTO, personally evaluates every engineer for technical excellence, communication and problem-solving skills. Our work is built around four core values: quality, clarity, transparency and a personalized approach to every client engagement. The process is simple: after a discovery call, we match engineers to your technology stack, product domain and culture, present a CTO-vetted shortlist and run contracting alongside onboarding. Staffing typically happens within 60 hours. Today, our teams support startups and product companies across Europe, UK and North America. UASOFTDEV's track record includes a 97% first-candidate acceptance rate, a 95.65% first-match success rate and an average client engagement of over 13 months. Founders respond to critical issues within two working hours. Whether you need one senior engineer or an AI-Ready Dedicated Team, our goal is the same: help you ship faster with engineers who communicate clearly, contribute from day one and solve complex problems independently.7 works in Software DevelopmentLocated in London, United Kingdom (+12)From €10,000 for Software DevelopmentWorked in Real Estate (+4)Speaks English11-50 membersSupercharge
(0 review)we build intelligent regulated businesses
Top awardedSupercharge is an end-to-end digital product innovation agency for energy, mobility, financial services, insurance and other regulated industries. We build intelligent systems that cut unnecessary complexity, so organisations can scale decisions and action at machine speed while staying fully in control. End-to-end, for us, means more than every service under one roof, from digital strategy through product design to AI, software engineering and managed services. It means full ownership of the outcome. Our AI-native delivery methodology lets us move fast and hit ambitious timelines without cutting corners. We push through every technical challenge until the system creates real value, and keep it secure and reliable long after launch. Our 200+ experts across Europe have built critical systems for organisations like BritNed, NeuConnect, Transport for London, MetLife, OTP Bank and Pfizer. Let’s talk.26 works in Software DevelopmentLocated in London, United Kingdom (+4)From €1,000 for Software DevelopmentWorked in Banking & Financials (+12)Speaks English, Dutch(+1)201-500 membersSaaS Pilot
4.9(10 reviews)Engineering Ideas Into Scalable Products
We design and build scalable software, SaaS products, AI systems, mobile apps, and digital experiences for startups and businesses. Backed by the experienced teams behind SaaSPilot.co and Kuluyever.com, we take ambitious ideas from concept to production.Looking for work in Software DevelopmentLocated in London, United KingdomFrom €3,000 for Software DevelopmentWorks in multiple industriesSpeaks English, Turkish11-50 membersAthlon Technology
5(4 reviews)Digital experiences that drive growth
Athlon Technology is a digital design and software development agency, founded in 2006 and based in Sofia, Bulgaria. For nearly two decades, we have partnered with organisations like Deutsche Bank, PwC, Amazon, Zebra Technologies, NRG, and Fundpath to untangle complex problems and build software that works in the real world, not just on paper. Our work spans three areas: Product Design & Strategy - UX/UI design, design research, service design, and scalable design systems Engineering - Cross-platform software development, mobile and web applications, system integration, and technical architecture Digital Production Hub - A centralized production capability with dedicated producers managing end-to-end delivery, ensuring alignment across design, development, and business objectives9 works in Software DevelopmentLocated in London, United Kingdom (+2)From €10,000 for Software DevelopmentWorked in Telecommunications (+10)Speaks English, Bulgarian(+2)51-200 membersSENLA | Software Engineering Laboratory
5(2 reviews)Scale your engineering teams with SENLA
Top awardedSENLA is a leading Talent Augmentation provider in Europe, offering access to over 700 highly skilled tech professionals . Trusted by global leaders such as BOSCH, IKEA, Bayer, and Deloitte, we specialize in enhancing tech teams with top-tier engineers, architects, and data scientists. Our proven talent system guarantees 95% client satisfaction and a 94% staff retention rate . With flexible options including individual experts, dedicated teams, or development centers, we can launch new teams in as little as 10 days . Since 2012, we’ve delivered over 350 successful projects across a wide range of industries. Our approach focuses on: Rapid access to pre-vetted tech talent; Building tailored teams that fit your unique requirements; Effortless integration with your workflows; Reliable ongoing support and quality assurance. Ready to transform your tech capabilities? Partner with SENLA and discover the unmatched value of expert Talent Augmentation.31 works in Software DevelopmentLocated in London, United Kingdom (+1)From €10,000 for Software DevelopmentWorked in Banking & Financials (+16)Speaks English, German(+1)501-1000 membersFulminous Software
5(38 reviews)WE LOVE TO BUILD ASK FOR IT AND HAVE IT
Top awardedWe are Fulminous Software, a skilled web and mobile app development company with a proven history of creating popular and profitable apps. We're known for our knack for enhancing existing apps and websites to make them even better, ensuring people keep downloading and enjoying them. Our dedicated team is here to turn your ideas into reality. The company’s biggest strength is its team which I a mix of most ingenious and focused individuals who are adroit in whatever they do. They believe in delivering flawless and reliable solutions to clients that match business needs and drive business growth. We are looking for strategic partnerships from around the globe. If you are interested please contact us today. Client's Feedback About US: https://clutch.co/profile/fulminous-software-private#highlights https://www.bark.com/en/in/company/fulminous-software-private-limited/9AKJO/ Our Key services: * Custom Software development * Mobile App Development (Android App, iPhone App, Cross-Platform App) * Custom Game Development (AR, VR, iOS, Android, NFT, Metaverse, 2D, 3D) * Salesforce Development (Lightning, Implementation, Consulting) * Web Development * Mobile Game Development * Desktop Game Development * Xamarin App Development * Wearable Devices App Development * Enterprise App Development * CRM & ERP Development * Digital Marketing7 works in Software DevelopmentLocated in London, United Kingdom (+2)From €1,000 for Software DevelopmentWorked in Video games (+9)Speaks English51-200 membersTimspark
5(3 reviews)Software development, engineering teams, AI/ML, data, cloud, and DevOps.
Top awardedTimspark is a software development company helping startups, SMBs, and enterprises build, scale, and modernize digital products and technology platforms. We provide custom software development, team augmentation, and dedicated engineering teams across web and mobile development, AI/ML, data engineering, cloud and DevOps, QA automation, and Salesforce. Our teams can integrate with an existing engineering organization or take responsibility for full-cycle product delivery, from discovery and architecture to development, testing, deployment, and ongoing support. Our experience includes microlearning and EdTech platforms, cybersecurity and vulnerability analytics, industrial IoT and real-time data processing, AI-powered point cloud and Scan-to-BIM solutions, pharmaceutical data platforms, and scalable web and mobile applications. Whether a client needs senior specialists to strengthen an existing team, a dedicated cross-functional engineering team, or end-to-end software development, Timspark provides the technical expertise and delivery flexibility to move projects forward efficiently. Services: Custom Software Development • Team Augmentation • Dedicated Engineering Teams • Web & Mobile Development • AI/ML & Data Engineering • Cloud & DevOps • Salesforce • QA & Test Automation22 works in Software DevelopmentLocated in London, United Kingdom (+1)From €20,000 for Software DevelopmentWorked in Media (+15)Speaks English, Armenian(+6)51-200 membersGRM Digital
5(5 reviews)Digital marketing and technology that drives measurable growth.
Top awardedGRM Digital is an award-winning digital agency helping ambitious businesses generate sustainable growth through SEO, paid media, content, digital strategy and technology. Since 2009, we've worked with organisations to improve their digital visibility, attract the right audiences and turn digital activity into measurable commercial results. Our marketing capabilities include SEO, PPC and paid search, content strategy and creation, digital PR and authority building, analytics, conversion optimisation and wider digital marketing strategy. We don't treat these channels in isolation. Our teams combine marketing expertise with UX, data, design and technology to understand the complete customer journey, from how prospects discover your business through to how they engage, convert and become customers. For organisations looking for an ongoing digital marketing partner, we develop integrated strategies based around clear commercial objectives. This includes understanding your market and competitors, identifying growth opportunities, building the right channel strategy and continuously measuring and improving performance. Unlike agencies focused purely on marketing activation, GRM also has extensive technical expertise across websites, CMS, eCommerce and digital platforms. This allows us to identify and solve the technical, UX and performance issues that can limit marketing results. Whether you need to increase organic visibility, improve paid search performance, create better content, generate more qualified enquiries or build a long-term digital growth strategy, GRM provides the strategy, expertise and ongoing optimisation needed to deliver measurable growth.4 works in Software DevelopmentLocated in Leeds, United Kingdom (+4)From €50,000 for Software DevelopmentWorked in Education (+6)Speaks English, Croatian(+2)11-50 members