10 UI/UX Agencies in London, UK to Hire (2025)

• Branches: UAE, India, UK, and USA
• Location: Floor 24, The Shard, 32 London Bridge St, London SE1 9SG, United Kingdom
• Industries: Real estate, Technology & SaaS, E-Commerce, finance, healthcare, education, retail, and more
• Notable clients: Doordash, Havells, Kawasaki, Mercedes-Benz, momondo, strongr., Pazazz, Think Vastu, and many more

Tenet is a leading UI/UX design agency in London, UK. The team helps businesses turn complex ideas into smooth digital experiences. With 450+ successful projects, Tenet has built websites, mobile apps, and SaaS platforms that are fast, simple, and beautiful. Their designs help users stay longer, explore more, and convert better.

Tenet offers standout services like mobile app design, user research, wireframing, SaaS UI, and UX consulting. Their work has helped UK brands see 55% longer user sessions and 94% higher customer satisfaction. 

Tenet’s award-winning design team uses tools like Figma, Adobe XD, and Sketch to deliver top-tier results in industries such as finance, e-commerce, healthcare, and education.

Clients like Coca-Cola, Lazada, and Gartner trust Tenet to improve user journeys and grow engagement. Whether you’re a startup or an enterprise, Tenet provides UI/UX services that boost trust, increase sales, and turn visitors into loyal customers.

Why trust Tenet for your UI/UX design services in London

• Proven Expertise: With over 450 successful projects delivered to 300+ clients worldwide, Tenet brings unmatched experience to every design challenge. Our work has been consistently recognized with industry awards and accolades.

• Real Business Impact: Our UI/UX designs have helped clients generate more than $1.54 billion in revenue. We focus on building digital experiences that not only look good but also drive sales and conversions.
• Global Footprint: Having worked with users in over 15 countries and impacting more than 20 million people, we bring both local knowledge and international insights to each project, adapting to your specific market needs.

• Satisfied Clients, Strong Relationships: A 98% client satisfaction rate and a 45% client retention rate show the trust businesses place in us. Verified reviews confirm our commitment to delivering results.

• Recognized by Industry Leaders: We’ve partnered with Fortune 1000 companies and received 60+ five-star ratings on trusted platforms like Google, showcasing our credibility and quality of service.

• Results-Driven Designs: Our work leads to measurable outcomes, clients report 65% longer user engagement and 45% higher conversions. Perfect for businesses looking to build a strong digital presence from day one.
• Tailored Solutions for Every Business: Every project is customized to fit your business goals. We use a variety of advanced tools and frameworks to optimize engagement and deliver maximum ROI.
• Fast, Flexible Process: Our agile design methodology ensures faster turnaround times and efficient iteration, helping your business stay ahead in a fast-moving digital landscape.

Connect with us for UI/UX design services 

• Email: hello@wearetenet.com
• Phone: +44 7418 379209
• Website: https://www.wearetenet.com/uk/ 

👉 Explore top UI/UX agencies:

• UI/UX Agencies in Abu Dhabi You Can Trust
• Top UI/UX Design Companies in India
• Top UI/UX Design Companies in the UK To Scale in 2025 
• UI UX Design Companies in Dubai You Can Trust [2025] 

• Branches: London, Amsterdam, and Prague
• Location: Spaces City Road, Epworth House, 25, City Road, London, England, EC1Y 1AA
• Industries: Technology, education, media and entertainment, legal, etc.
• Notable clients: Stagiro,  Veolia, Universal, Mercedes Benz, and more
• Website: https://pixelfield.co.uk/ 

Pixelfield crafts digital interfaces that feel natural to use and simple to understand. Their team pays close attention to how people interact with apps and websites, then turns those insights into clean, focused designs. Every screen they create supports the user’s next step, making the whole experience feel smooth and familiar.

They offer hands-on UX research, custom UI kits, and clickable prototypes that bring early ideas to life. Their process includes deep discovery sessions, feedback loops, and testing with real users. Pixelfield doesn’t just design what looks good; they design what works in the real world. It helps products connect better with the people who use them.

• Branches: London and Manchester 
• Location: Make it Clear, 42 York St, Twickenham, London TW1 3LJ
• Industries: Cybersecurity, Healthcare, and Technology 
• Notable clients: The Design Museum, Thales, Cambridge, Orange, and more 
• Website: https://makeitclear.com/ 

Make it Clear provides end-to-end UI/UX design services. Their team supports every stage of the digital design process, from research and wireframing to prototyping, testing, and final delivery. They design user experiences that are easy to use and visually consistent across platforms.

Their UI/UX work includes building design systems with reusable components and clear guidelines. They structure content using information architecture to help users find what they need quickly. Their conversion rate optimisation service improves how users interact with websites and increases the chances they take key actions. They also create style guides that keep designs aligned with brand identity. 

• Branches: UK
• Location: International House, 101 King's Cross Road, London WC1X 9LP
• Industries: Workflow automation, Fintech, SaaS, Health & Wellbeing, etc.
• Notable clients: KPMG, PayPoint, Sage, Kuoni, and more 
• Website: https://wearelighthouse.com/ 

Lighthouse provides focused UI/UX design services for digital products. They start with discovery workshops, deep user research, and product audits to find the right direction. Their team explores ideas, maps user flows, and builds interactive prototypes. Each decision comes from real data, not guesswork.

They design clean interfaces, test with users, and build systems that grow with the product. Their work spans SaaS tools, finance platforms, and health apps. The blog shares design insights, process breakdowns, and tools they use

• Branches: Guildford, London South Bank, and Central London 
• Location: Central London, Fitzrovia, 72 Wells Street, London, W1T 3QF
• Industries: Fintech, banking, NGO, and more 
• Notable clients: Emoquo, National Zakat Foundation, Eightcap, Idealex, etc.
• Website: https://ux-design.agency/

Plug & Play offers UI/UX design services that focus on transforming digital products through structured design processes. Their team works on re-interfacing projects for mobile apps, web platforms, and complex software, often collaborating with internal product and development teams.

They begin with stakeholder workshops and research to understand goals and user needs. Using wireframes and clickable prototypes, they test and refine user flows before full designs are developed. Their designers create flexible design systems to support both internal and external development teams.

• Branches: London, Basel, and Berlin
• Location: 7 Pancras Square, King's Cross London, N1C 4AG, Uk
• Industries: SaaS, Automotive, Gas and Oil, Marine, Healthcare and more 
• Notable clients: Philips, Miele, General Motors, PwC, Discovery Channel, etc. 
• Website: https://interface-design.co.uk/ 

Creative Navy delivers UI/UX design services that combine research with creative design. They craft mobile apps, websites, and embedded systems with vibrant color schemes and clear icons. They use rapid prototyping and simple animations to form interactive user journeys. They value your privacy

Creative Navy uses heat maps and user testing to refine each design. They create clear wireframes and engaging micro-interactions that guide user actions. 

The team works side by side with clients to tailor each project with exact care. Their process builds designs that feel personal and easy to use.

• Branches: London
• Location: 71-75 Shelton Street, Covent Garden, London WC2H 9JQ
• Industries: SaaS, Operations, Retail, Edtech
• Notable clients: Gateway, Rolec Services, Surecloud
• Website: https://www.wearedpp.com/ 

Digital Product People design user experiences and interfaces for web and mobile products. They begin with discovery and research to learn about user needs, business goals, and competitors. Their team runs user interviews, gathers data, and maps out clear user journeys. They use this research to shape product features and create a clear plan.

Next, they design easy-to-use interfaces that match the brand and support development. They create wireframes, clickable prototypes, and design systems that scale. Their UI work includes design sprints, accessibility, and front-end collaboration. Finally, they offer strategy and consulting to help teams improve performance, test ideas, and plan for growth. Digital Product People support the entire product journey, from idea to launch and beyond.

• Branches: UK
• Location: Zetland House, 2nd floor, 5-25, Scrutton Street, London EC2A 4HJ
• Industries: B2B Tech, Software and SaaS, B2B services
• Notable clients: Anthesis, Kite, BridgeU, RapidMiner, and more
• Website: https://claritydx.global/ 

ClarityDX designs digital experiences that help B2B users find what they need and take action. The team studies how users move through a website and finds ways to make that journey easier. They use data, research, and clear thinking to shape each part of the design process.

The team creates designs that match user needs and business goals. They always think about how real people will use the site.

ClarityDX offers services like UX audits, journey mapping, prototyping, and UI design. They work closely with clients to build websites that guide users, support brands, and improve results.

• Branches: UK, USA, Australia
• Location: 35 Luke Street, Shoreditch, London
• Industries: Artificial intelligence, SaaS, Fintech, Insurance, and more 
• Notable clients: esynergy, Maihem, Protectivity, Oxford Properties 
• Website: https://www.shoreditchdesign.com/  

Great design isn’t just about making something look beautiful, it needs to work well, too. Shoreditch Design creates digital experiences that are simple, clear, and easy to use. Their team focuses on how people move through a product and how it feels at every step.

They design websites, mobile apps, and design systems. They test ideas early, get real feedback, and adjust fast. Their team uses research, wireframes, and clickable prototypes to make sure everything works before it goes live. Every part of the process helps reduce confusion and improve user flow.

• Branches: London
• Location: 25 Moorgate, London EC2R 6AY
• Industries: NA
• Notable clients: NA
• Website: https://uxagency.co/

UXAgency.co provides UI/UX design and research services that support digital product teams at every stage. They work alongside agencies, startups, and in-house teams to solve design problems and improve product usability. Their team fits easily into existing workflows without slowing down progress.

Their work begins with UX research, including user interviews, persona creation, and journey mapping. Once they understand the users, they create wireframes, clickable prototypes, and test ideas with real users. This helps make sure the final designs are simple, useful, and easy to build. UXAgency.co can support projects of all sizes.

Before choosing an agency, know what you want to achieve. Are you building a new product, improving an existing interface, or solving a user experience problem? Clear goals help you find an agency with the right strengths, tools, and team to deliver meaningful results that align with your users and business vision.

• Questions to ask:
  • What types of UI/UX projects do you specialize in?
  • Can you handle both web and mobile interfaces?
  • Do you also offer research and testing services?
  • How do you measure success in your design projects?
• ✅ What to look for:
  • The agency listens carefully and asks questions about your users.
  • They offer a wide range of services beyond just design.
  • They share success stories and KPIs from past projects.
• Common pitfalls to avoid:
  • They jump into visuals without understanding your goals.
  • They only offer templated solutions.
  • They cannot explain how their design improves ROI.
• How Tenet stands out:

Tenet starts every project with user research and goal mapping. With over 450+ successful projects, we craft custom solutions that focus on performance and results.

A strong UI/UX agency follows a defined, user-centered design process. From discovery and wireframes to testing and iteration, every step should be clear. This shows they think strategically, not just visually, and ensures the final product is functional, beautiful, and based on real user needs.

• Questions to ask:
  • Can you walk me through your UI/UX design process?
  • How do you involve clients during the project?
  • Do you conduct user testing?
• ✅ What to look for:
  • Their process is clear, collaborative, and user-centric.
  • They use wireframes and prototypes to validate ideas.
  • They welcome feedback and adapt quickly.
• Common pitfalls to avoid:
  • No mention of user testing or research.
  • No clear steps or documentation.
  • They rush straight to visual design.
• How Tenet stands out:

Tenet follows a robust, research-led process. We are backed by a 94% client satisfaction rate. We make every step visible and collaborative so that you don't feel you miss out on the process or lose control over the project. 

An agency’s past work reveals their creativity, consistency, and ability to solve real problems. A good portfolio should show a variety of industries, clear before-and-after examples, and results backed by data. You must look for designs that balance beauty with usability and showcase strong attention to user behavior.

• Questions to ask:
  • Can you show UI/UX work done for businesses like mine?
  • Do you have case studies with results?
  • What industries do you work with most?
• ✅ What to look for:
  • Their portfolio includes diverse projects with measurable outcomes.
  • The designs show strong user focus and consistency.
  • They explain the “why” behind each design choice.
• Common pitfalls to avoid:
  • The portfolio lacks variety or real business results.
  • All designs look the same.
  • They refuse to share client references.
• How Tenet stands out:

Tenet has built designs for startups to Fortune 1000s across different industries locally and globally. They have earned over 60+ five-star reviews on different customer review forums like Google and Clutch.

An agency familiar with your industry understands the users, challenges, and compliance needs you face. Their experience allows them to design faster, make smarter choices, and avoid common mistakes. This means less back and forth, and their final product will speak the users’ language.

• Questions to ask:
  • Have you worked with companies in my sector?
  • What design challenges have you solved for similar clients?
  • Can you align design with compliance or industry trends?
• ✅ What to look for:
  • They bring insights from similar industries.
  • They understand key user behavior and compliance needs.
  • They offer suggestions based on past success.
• Common pitfalls to avoid:
  • They lack industry-specific knowledge.
  • They use generic or outdated design ideas.
  • They avoid talking about past clients or projects.
• How Tenet stands out:

From HIPAA-compliant healthcare apps to conversion-first eCommerce sites, Tenet has experience in UI/UX design knowledge for every industry. We keep our teams updated with industry trends so you won't get outdated design concepts.

Great design comes from strong collaboration. The agency should keep you updated, involve you in key product designing decisions, and respond quickly to feedback. If they’re organized, transparent, and easy to talk to, your project is more likely to stay on track and succeed.

• Questions to ask:
  • How often do you communicate with clients?
  • What tools do you use for updates and design sharing?
  • How do you handle change requests?
• ✅ What to look for:
  • Regular updates via tools like Figma, Slack, or Notion.
  • Open to feedback and client reviews.
  • Agile workflow with frequent iterations.
• Common pitfalls to avoid:
  • Poor response time or unclear timelines.
  • One-way communication with limited feedback.
  • No real-time collaboration tools.
• How Tenet stands out:

Tenet uses agile methodologies with clear timelines, open channels, and transparent reporting. This ensures fast delivery, and responsive collaboration.

Know what you’re paying for. A good agency will provide a clear customized quote that includes timelines, deliverables, and the number of revisions for your project. You must avoid vague pricing or hidden fees. Transparent pricing helps you budget confidently and avoid surprises later in the project.

• Questions to ask:
  • Do you charge hourly or per project?
  • What’s included in your price quote?
  • Are post-launch changes covered?
• ✅ What to look for:
  • Clear breakdown of tasks and timelines.
  • Flexible packages based on scope and goals.
  • Transparent about revisions and extra costs.
• Common pitfalls to avoid:
  • Vague pricing or hidden charges.
  • Fixed price without knowing the project details.
  • No scope or contract clarity.
• How Tenet stands out:

Tenet offers scalable UI/UX design packages tailored to every business that is backed by ROI-driven design. We don't settle with similar designs but customize your platform interface according to your business needs.

Design doesn’t end at launch. You must choose an agency that offers ongoing support, testing, and updates based on real user data. Continuous improvements can boost conversions, enhance usability, and keep your product ahead of the competition as your business evolves.

• Questions to ask:
  • Do you offer design support after launch?
  • Can you help with optimization and testing?
  • Do you help track UX metrics and user feedback?
• ✅ What to look for:
  • Offers analytics, A/B testing, and iteration.
  • Tracks user behavior and optimizes flows.
  • Ready to grow with your product needs.
• Common pitfalls to avoid:
  • One-time delivery, no follow-up support.
  • No plan for tracking performance.
  • No interest in long-term partnership.
• How Tenet stands out:

Tenet supports ongoing growth with data-led UX updates, user testing, and continuous improvement for lasting impact. It ensures we are suitable for your long-term partnership. 

Client reviews and testimonials show how the agency treats its partners. You can look for feedback about communication, delivery quality, and long-term results of the agency. Verified reviews, industry ratings, and real client names are strong signs of trust and credibility.

• Questions to ask:
  • Can you share testimonials or references?
  • What platforms have rated your agency?
  • What do your clients say about working with you?
• ✅ What to look for:
  • Verified reviews and case studies with metrics.
  • High ratings on Clutch, GoodFirms, or Google.
  • Positive feedback on communication and delivery.
• Common pitfalls to avoid:
  • No real reviews or testimonials.
  • Fake or vague feedback.
  • No mention of long-term client relationships.
• How Tenet stands out:

Tenet has 60+ 5-star reviews, a 55% repeat client rate, and trusted partnerships with top UK brands like Pizza Hut, Balsan, and JL Moneris. This proves our dedication to offering quality work. 

Whether you're building a brand-new website or upgrading an old one, this service focuses on creating a clean, user-friendly layout that matches your brand. It helps guide visitors through your site so they stay longer and take action.

• Impact: Boosts engagement, lowers bounce rates, and increases conversions.
• Priority: High

This service delivers mobile experiences that look great and feel natural on smartphones and tablets. Agencies design smooth navigation and layouts that make tapping, scrolling, and swiping easy for everyone.

• Impact: Improves user satisfaction, retention, and app store performance.
• Priority: High

Agencies create smart, intuitive layouts that help users make sense of data and complete tasks with ease.

• Impact: Makes software easier to use and reduces the need for training or support.
• Priority: High

A consistent visual identity helps your brand stand out. Agencies develop custom logos, color schemes, typography, and reusable design components to keep your digital presence unified and professional.

• Impact: Builds trust and makes your brand easy to recognize.
• Priority: Medium

High-performing landing pages are built to convert. This service creates focused, action-driven designs that guide users toward signing up, buying, or clicking, without distractions. 

• Impact: Increases conversions and boosts returns on marketing campaigns.
• Priority: High

Online shopping should be fast and frustration-free. This service improves your e-commerce store by streamlining product discovery, checkout flows, and overall navigation.

• Impact: Reduces cart abandonment and increases sales.
• Priority: High

Think of this as a detailed health check for your product’s user experience. Agencies analyze what's working, what’s not, and give you practical tips to make your site or app easier to use.

• Impact: Helps identify easy wins and quick fixes for better user experience.
• Priority: Medium

Design should work for everyone, including users with disabilities. This service improves your product’s accessibility by enhancing things like text size, color contrast, and keyboard navigation.

• Impact: Makes your product inclusive and compliant with accessibility standards.
• Priority: High

Sometimes small changes make a big difference. Agencies look closely at your existing design to tweak layouts, buttons, and messaging so more visitors take the action you want.

• Impact: Helps turn more visitors into leads, customers, or users.
• Priority: Medium

Your users switch between devices all the time. This service ensures your design looks great and works smoothly across desktops, mobiles, tablets, and even smart TVs or wearables.

• Impact: Improves usability and creates a connected experience across platforms.
• Priority: Medium

👉 Further reading:

• Startup UX Design Principles
• UI/UX Design Principles For Mobile Apps
• Best UX Audit Tools (Shared by Our UX Experts) 

Great design is the first step to online success. If your website or app is slow or hard to use, people will leave and may not come back. At Tenet, we create smooth, simple, and good-looking designs that keep users interested and help businesses grow.

We’ve worked with over 200 clients locally and globally and completed more than 450 projects. Many of our clients have seen up to 45% more sales and sign-ups after working with us.

Tenet helped big and small businesses turn their ideas into websites and apps that really work. From start to finish, we focus on what users need so they can trust your brand and take action.

Want to stand out from the crowd? Let Tenet help you!

Contact us today!