All Web App Development Companies in Hertfordshire
Duck.design
4.7(29 reviews)You need design done. Just get it!
Highly recommendedTop awardedYour brand designs are too important to be left in the hands of unreliable freelancers or expensive creative agencies. Why not hire an experienced, full-time designer who knows you by name and your brand by heart? Since its creation, Duck.design has been able to capitalize on a number of areas that currently constitute its strength: - Logo, Brand Guide, Style Guide; - Graphic Design; - Web Design; - UI/UX Prototyping; - 3D Design; - Game design; - Explainer Video, 2D Animation, GIF.Looking for work in Web ApplicationLocated in Greater London, United KingdomBudget on requestWorked in Banking & Financials (+8)Speaks English51-200 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.19 works in Web ApplicationLocated in Cherkasy, Ukraine (+3)From €15,000 for Web ApplicationWorked in Beverage (+20)Speaks English, Ukrainian51-200 membersCab Engine | Digital Agency
4.9(5 reviews)We specialise in building high-performance teams to power your entire marketing engine.
RecommendedA trusted UK agency of 20 years, our unique partnership model has been the foundation for our client's success. Working with brands all over the world, our dedicated digital teams have driven significant results for our clients tech platforms and performance marketing.4 works in Web ApplicationLocated in Warwickshire, United KingdomFrom €30,000 for Web ApplicationWorked in Others (+8)Speaks English11-50 membersAGCS Works
4.8(34 reviews)Marketing - Design - Social Media - Video Production
RecommendedTop awardedWe are an award-winning international digital agency born in Amsterdam. Our key areas of focus are: - Marketing and Marketing Strategy - Social Media - Design and Digital Design - Video Production and Editing - Web Development - Branding and visual identity - Digital design - HTML5 coding and Banners We have worked with clients including Yamaha, Universal Pictures, Ubisoft, Qatar Airways, and Samsonite, as well as top creative agencies across Europe and United States. Our team of designers, video editors and web development specialists helps brands and creative agencies execute flawless design and digital production projects.10 works in Web ApplicationLocated in Amsterdam, Netherlands (+1)From €1,000 for Web ApplicationWorked in Accounting (+16)Speaks English, Dutch11-50 membersBullshark
4.7(14 reviews)360-degree solutions across strategy, technology, marketing and data.
We don’t just deliver digital—we build engines for growth. Founded in 2020, Bullshark is a relentless force in strategy, tech, marketing, and data. We partner with ambitious organisations to drive revenue, scale operations, and unlock competitive edge. WHAT WE DO We operate across four core service lines. Each built to move the needle: (1) Strategy We cut through the noise. No fluffy decks. Just sharp insights and clear roadmaps that solve real business problems. (2) Technology From high-performing websites to full-scale enterprise platforms—if you can dream of it, we’ll deliver it. No limits. No confusion. Just powerful tech that delivers. (3) Marketing We handle the full marketing stack—from content to performance. Everything focused on one thing: growth. Think more leads, more conversions, more lifetime value. (4) Data We turn scattered data into structured intelligence. From data pipelines to dashboards, we build the foundations for clean, high-quality data that powers better decisions. Our data engineering services help clients boost accuracy, accessibility, and real-time value. OUR AI EDGE We don’t just talk about AI—we implement it where it matters. Bullshark offers strategic and hands-on AI services that create real-world impact. From off-the-shelf tools to custom-built models, we help businesses unlock smarter operations, sharper insights, and new revenue streams. What we offer: AI strategy and roadmapping Automation and productivity tools Data-driven decision systems AI-powered customer experiences Custom model development and integration + More We build, train, deploy, and scale AI solutions that fit your business—not the other way around. WHO WE WORK WITH We’ve earned the trust of 200+ brands across the globe—from Wolt and Pfizer to Hyatt and the Government of Malta. WHERE WE OPERATE Headquartered in Malta, growing fast in the UK, and delivering worldwide. We serve clients across Europe, Middle East, North America. Local firepower, global mindset.2 works in Web ApplicationLocated in Birkirkara, Malta (+1)From €5,000 for Web ApplicationWorked in Industrial Goods & Services (+5)Speaks English, Italian(+1)11-50 membersGRM Digital
5(5 reviews)Reach your digital potential
Top awardedWe’re GRM Digital, an award-winning, full-service web development and digital marketing agency based in Leeds, London, Sarajevo, Amsterdam and Islamabad. Since 2009, we've been helping world-leading brands grow by providing high-quality, robust web development, SEO and digital consultancy, backed by in-depth research and analysis.3 works in Web ApplicationLocated in West Yorkshire, United Kingdom (+4)From €20,000 for Web ApplicationWorked in Education (+6)Speaks English, Croatian(+2)11-50 membersDreamzTech US INC
5(30 reviews)DreamzTech your partner for AI-driven digital transformation
Highly recommendedDreamzTech is a global AI and software development company with more than sixteen years of experience delivering advanced digital solutions for clients worldwide. Offices in Tempe, Arizona; Las Vegas, Nevada; the United Kingdom; and India with strong local project management and world-class engineering teams. Recognized by Deloitte, The Economic Times, and Forbes Select 200 for exceptional growth and innovation. Trusted by global brands including DHL, Nestle, Close Brothers, ABIenv, Stanford University, TetonRidge, and Golden Entertainment. Core Services --------------------- Artificial intelligence and generative AI including LLM development, AI agents, chatbots, automation, and predictive analytics. Custom software development for enterprise platforms and digital transformation. Web and mobile app development, including native and cross-platform applications. Enterprise systems including ERP, CRM, workflow automation, BI dashboards, cloud native solutions, and data engineering. Logistics and supply chain software, including warehouse and transportation management systems and RFID integrations. Product Suite ------------------ 1) DreamzCMMS for asset and maintenance management. 2) DreamzFSM for field service operations. 3) RFID Tracks for RFID-based supply chain automation. 4) DreamzFacility for facility management. 5) BestBrain for AI and chatbot application development. Industries Served ----------------------- Logistics, manufacturing, healthcare, fintech, retail, real estate, hospitality, education, automotive, and more. Our Promise ------------------ Deliver measurable outcomes that help clients scale faster and operate smarter. Provide a long-term partnership driven by innovation, reliability, and strong execution.6 works in Web ApplicationLocated in Watford, United KingdomFrom €1,000 for Web ApplicationWorked in Travel & Leisure (+4)Speaks English201-500 membersThe Weather
4.9(41 reviews)No-nonsense digital transformation for forward-thinking brands
Highly recommendedTop awarded🇬🇧 The Weather is an award-winning digital agency and one of Germany's top-ranking companies for web design and web development . Based in Berlin, delivering worldwide. We have created over 200 websites for tech startups, green energy clients, democracy-focused NGOs, and progressive brands. Their digital transformation has paid for itself — and yours should too. The Weather is the #1 web design company in Germany on Clutch. Seven of our websites received niminations on Awwwards.com. Our web experiences change entire businesses, one website at a time. See the proof. Web design Our high-impact design websites and digital experiences are designed to spark action and build momentum. Discovery & digital advisory Websites UI/UX Figma Web apps Mobile apps Motion design 3D animations Web development We develop future-proof websites and software that are result-oriented and easy to live with. WordPress and Elementor Webflow Jamstack, Headless CMS Mobile apps Web apps Support and maintenance Brand construction With a strong focus on storytelling, we craft distinctive brand and product identities that stand out. Brand guidelines Brand book Idea making Copywriting Illustration Graphic and print design10 works in Web ApplicationLocated in Berlin, GermanyFrom €5,000 for Web ApplicationWorked in Entertainment & Events (+24)Speaks English, Catalan(+7)11-50 membersCreative Navy
5(21 reviews)Only senior designers. Evidence-based approach.
Top awardedCreative Navy is a UX/UI design studio that tackles complex, high-stakes projects for professional and industrial applications. Using an evidence-based approach, they create intuitive, resilient interfaces for sectors like healthcare, manufacturing, automotive, and energy. They are specialists in embedded GUIs and touch interfaces for mission-critical systems—from surgical and diagnostic devices to automotive HMIs and marine control panels in extreme environments. Their work balances design finesse with operational realities such as latency, constrained screen space, and use under stress, backed by rigorous testing for clarity, cognitive load, and performance in edge cases. Beyond embedded systems, they design technical tools for engineers, clinicians, and analysts: B2B platforms, native desktop apps for research, and real-time data visualization. Their process integrates deep domain understanding, regulatory awareness, and the logic of expert decision-making. With teams in London, Berlin, and Basel, Creative Navy blends global insight with Germanic precision and Swiss reliability. Clients like Miele, Bosch, and Ford value their mix of design excellence, engineering alignment, and strategic thinking. Customers: ✅ Automotive: Jaguar, Hyundai, General Motors, Mazda, Ford ✅ Medtech: B Braun, Medtronic, Zethon, UnitedHealth Group, Humana, Johnson & Johnson, HCA Healthcare, Merck, Siemens Healthineers, Gilead ✅ Saas: Hubspot, Adobe, Zendesk, eToro ✅ Technology: BAE Systems, Siemens, Infineon Technologies, Miele, Philips, Bosch ✅ AI: Perplexity, Arlq, Owkin ✅ Finance: JPMorgan Chase, Bank of America, Goldman Sachs, American Express, Barclays ✅ Public bodies: UNICEF, OECD, Government of Canada, GOV.UK (GDS), Bundesagentur für Arbeit ✅ Other: Amazon, Walmart, ExxonMobile, Hilton, Comcast, PepsiCo, Delta, Linde, Shell, Deutsche Telekom, DHL, E.ON, Discovery Channel31 works in Web ApplicationLocated in London, United Kingdom (+7)From €3,000 for Web ApplicationWorked in Energy & Oil (+27)Speaks English, Danish(+9)11-50 membersTechGropse Pvt. Ltd.
4.9(105 reviews)Next-Gen Apps for Next-Gen User
Highly recommendedTechGropse is a leading mobile app development company headquartered in Dubai with a prominent global presence in the UAE, USA & India. Established in 2015, we transform innovative ideas into reality, becoming a go-to name for businesses seeking stunning, high-performance mobile applications. Vision and Mission We help businesses grow by developing stunning mobile apps that users love. Our mission is to deliver high-quality, personalized solutions that meet the unique needs of every global client as a dedicated partner in your success. What We Do & Strategic Services TechGropse offers end-to-end services to meet all your digital transformation needs: Custom Mobile App & Software Development Expert UI/UX Design & Prototyping Cross-Platform & Native App Development Maintenance and Support AI Chatbot Development Machine Learning & AI Implementation (Agentic AI) Advanced Cloud Computing & DevOps Innovative IoT Development Industry Expertise We excel in developing apps for: Healthcare, FinTech, Logistics, Construction, Retail, Ecommerce, Energy, Insurance, Travel, Electric Vehicles (EV), and Real Estate. Why Partner With Us Using a stack like React, Node.js, Python, and Flutter, our client-focused team is committed to quality, timely delivery, and affordable pricing. We build long-term relationships through collaboration. Connect With Our Global Offices: USA Office: +1 267 327 4760 Dubai HQ: +971 527 984 766 Email: [email protected] Visit: https://www.techgropse.com/contact3 works in Web ApplicationLocated in Dubai, United Arab Emirates (+2)From €3,000 for Web ApplicationWorked in Automotive (+13)Speaks English, Arabic(+2)51-200 membersSigli
5(10 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.13 works in Web ApplicationLocated in Antwerp, Belgium (+2)From €10,000 for Web ApplicationWorked in Software & Computer Services (+12)Speaks English, Dutch(+3)51-200 membersHalo Lab
5(12 reviews)Transforming your product idea into reality through custom design-driven development.
Highly recommendedTop awardedHalo Lab is an award-winning custom web app design and development company ⭐ Our team offers reliable, customized, and user-friendly solutions for your business. We transform your product ideas into reality with our expert, design-driven development approach. Let us bring your vision to life with our innovative and tailored services. WE ARE YOUR PARTNER IN: ✅ Enhancing user experiences with UI/UX design. ✅ Building your brand identity. ✅ Growing your online presence with website development. ✅ Creating smooth digital experiences with full-cycle web app development. ✅ Ensuring top-notch quality with QA. ✅ Boosting growth and visibility with SEO & marketing support. Let’s create your star with us.4 works in Web ApplicationLocated in Dubai, United Arab Emirates (+4)From €10,000 for Web ApplicationWorked in Others (+18)Speaks English51-200 membersDebut Infotech
5(7 reviews)Results, Not Promises
RecommendedDebut Infotech is an AI-augmented blockchain and software development company helping organizations across financial services, healthcare, supply chain, and digital platforms build systems that perform reliably in complex, regulated environments. Founded in 2011 and blockchain-native since 2015, the company brings engineering discipline and technology depth to enterprises moving from fragmented pilots to production-grade systems. With delivery centers across the USA, UK, Canada, and India, Debut Infotech combines regional market understanding with globally distributed engineering capability — enabling clients to move with speed, consistency, and governance. Service areas: Artificial intelligence and generative AI — Enterprise LLM integration, AI agent development, retrieval-augmented generation (RAG) pipelines, predictive analytics, computer vision, and intelligent process automation embedded at the system architecture level. Blockchain and Web3 development — Smart contract engineering, DeFi protocol development, real world asset (RWA) tokenization, cryptocurrency exchange infrastructure, and enterprise blockchain on Hyperledger Fabric and Corda. Mobile application development — Native iOS, Android, and cross-platform applications (React Native, Flutter) architected for AI integration, enterprise-grade security, and sustained performance under production load. Web and software development — Full-stack web platforms, SaaS products, and enterprise software systems engineered API-first, designed for long-term maintainability and organizational scale Proven Delivery: $62M+ raised across client platforms including Ifinca, IntegraLedger, Everledger, and TĒM 90% customer success score across enterprise engagements 15 years of enterprise software delivery Fortune 500 clients and high-growth startups across 25+ industry verticals 50–249 engineers spanning AI, blockchain, and software disciplines12 works in Web ApplicationLocated in Chandigarh, India (+2)From €10,000 for Web ApplicationWorked in Others (+11)Speaks English51-200 membersAzuki
5(6 reviews)We build bespoke web and mobile solutions that fit your organisation perfectly.
We build bespoke online products and mobile apps to help your business grow. We make it our business to understand yours. We're small, friendly and based in Cambridge, UK. Got an idea we can help deliver? A challenge you need help solving? You've just found your team.7 works in Web ApplicationLocated in Hardwick, United KingdomFrom €5,000 for Web ApplicationWorked in Music (+8)Speaks English1-10 membersDelante SEO/SEM Agency
4.9(91 reviews)Delante: SEO, SEM & AI Search in one Search Agency - focused on results, growth, and business impact
Highly recommendedTop awardedDelante is an award-winning international Search Agency specializing in SEO, SEM, and AISO (AI Search Optimization). With offices in Kraków, New York, London, Italy, Spain, we support global brands across 29 global markets. Our +65 experts create tailored strategies focused on business impact - not vanity metrics . We know that marketing has to pay off. That’s why we track ROI, ROAS, and CAC to ensure our clients’ investments generate measurable growth. From increasing visibility to scaling international sales, our result-oriented and data-driven approach makes us the trusted partner behind the success of global e-commerce and B2B leaders. Our strategies have earned us recognition from Top International Awards, including: 🏆 Forbes Diamonds 2025 🏆 Deloitte Technology Fast 50 Europe 🏆 Financial Times FT1000 🏆 Google Premier Partner - Top 3% of Agencies Worldwide 🌍 🏆 Global Search Awards 2024 - SEO Agency of the Year 🏆 European Search Awards 2024 🏆 Global Agency Awards 2024 - Best B2B SEO Agency of the Year 🏆 Global Digital Excellence Awards 2024 More visits, more sales - let’s get you in the lead! Forward is our only direction - because Delante means Forward. It’s our can-do-attitiude mindset.Looking for work in Web ApplicationLocated in Kraków, Poland (+3)From €1,000 for Web ApplicationWorked in Clothing & Accessories (+8)Speaks English, Polish51-200 membersCreatif Agency
5(11 reviews)Web Design Agency, at Creatif Agency we help business grow online and boost their ROI
Top awardedCreatif Agency is an award-winning branding and web design agency built on one standard - that every project should be remembered. Founded in 2019, we work with startups, established companies, and ambitious founders to build brands and websites that are 100% custom, strategically sharp, and designed to last. Our services cover brand strategy, visual identity, presentation websites, eCommerce platforms, and custom digital applications all developed in-house, under one roof. Recognised by TechBehemoths as the #1 branding agency in Germany and top web design provider in Berlin and Helsinki. Our awards reflect a standard we set before the first brief arrives and hold on every project, for every client. No templates. No shortcuts. Just work that makes a difference. Serving clients across Romania, US, UK, Germany, Iceland, and beyond from startups finding their identity to enterprises redefining theirs. Creatif Agency is the design agency, built to perform.5 works in Web ApplicationLocated in Sibiu, Romania (+6)From €5,000 for Web ApplicationWorked in Food (+10)Speaks English, Romanian1-10 membersYalla Cooperative
5(8 reviews)We collaborate with purpose-driven organisations to create tech solutions that empower communities
Top awardedWorking together across the UK, Gaza, and the EU, we’re committed to designing and developing digital solutions that can drive positive, transformational change. We partner with non-profits, NGOs, and impact-driven businesses to create innovative solutions through technology that address societal challenges, spread knowledge, and transcend borders. If you are looking for a trusted digital partner to help amplify your impact, then get in touch. Why We Are the Partner You Need to Solve Your Problem Leverage the impact of digital with a partner you can trust You know the problems you want to solve, but it can be challenging to know how to use technology effectively. We collaborate with our partners in an open, transparent manner to identify and build digital solutions that amplify your impact and accelerate behavioral change. Create Innovative and Sustainable Solutions We are genuinely committed to tackling societal challenges with you. This means not just creating a product and moving on, but working with you over the long term—building, learning, and iterating with your community to provide lasting impact and amplify sustainability. Unlock Funding and Achieve More with Your Resources We assist our partners in finding and securing grants or investments. We create digital tools in a cost-efficient way, focusing on impact that can be tracked and demonstrated to secure the next round of funding. Our Focus Areas To achieve our mission, we have focused on a number of areas where we combine our digital expertise with partners to deliver digital solutions. Community Resilience and Wellbeing: We support organisations in simplifying complex social issues, providing digital tools for universal credit claims, personal independence payment benefits, cost of living assistance, and housing support. Our commitment lies in addressing these pressing challenges through digital innovation and user-centric design. Education and Empowerment: We believe education should be accessible to all. Our expertise spans e-learning platforms, digital literacy programmes, remote learning tools, and bespoke training resources, all designed to foster inclusive and accessible education for learners of all backgrounds. Healthcare Access and Equity: Our healthcare partnerships focus on creating groundbreaking solutions that bridge gaps in access and delivery. We develop telemedicine platforms, medical professional networks, research and evaluation systems, and other technologies that enhance patient care and streamline healthcare services for all. Advocacy and Civic Engagement: We collaborate with unions and grassroots movements to develop impactful campaigns, create digital platforms for advocacy, harness the power of crowdsourcing, and offer tools to enhance public engagement. By leveraging our expertise in public policy and digital communication, we empower organisations to drive meaningful societal change and influence policy decisions. Volunteer Mobilisation and Impact: We partner with charities and community groups to build effective volunteer engagement systems, making volunteering more accessible, meaningful, and scalable. Our work includes developing comprehensive volunteer management platforms, skills-based matching systems, and time-banking solutions that maximise the impact of volunteer programmes. Sustainable Agriculture and Environmental Stewardship: Our expertise extends to partnering with organisations focused on food security, climate action, and biodiversity conservation. We collaborate to create digital tools for sustainable farming practices, develop climate resilience strategies, and support initiatives aimed at reducing carbon footprints and promoting circular economy principles.3 works in Web ApplicationLocated in Greater London, United KingdomFrom €15,000 for Web ApplicationWorked in Real Estate (+5)Speaks English, Arabic(+2)11-50 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 objectives4 works in Web ApplicationLocated in Greater London, United Kingdom (+2)From €20,000 for Web ApplicationWorked in Telecommunications (+10)Speaks English, Bulgarian(+2)51-200 membersKeyToTech
(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.4 works in Web ApplicationLocated in London, United Kingdom (+1)From €5,000 for Web ApplicationWorked in Travel & Leisure (+12)Speaks English, German(+2)11-50 membersConTesta
5(20 reviews)Sell More. Live Better.
Highly recommendedTop awardedWe are a 360° marketing agency that provides comprehensive services so that, with a personalised approach, you can grow, evolve and take your business to the next level. We have clients in 8 countries and we speak English, Spanish, French and German. Our speciality is the personalisation of each campaign we execute, whether they are B2B, B2C, SMEs or large companies. We have an interdisciplinary team of experts in Social Media, Influencer Marketing, SEO, SEM, Web Design & Development and Planning . Our goal is to help you sell more so that you can live better. Contact us and we’ll get back to you within 24h.5 works in Web ApplicationLocated in Madrid, Spain (+4)From €400 for Web ApplicationWorked in Technology Hardware & Equipment (+21)Speaks English, French(+3)11-50 members