Best 10+ UI/UX Design and Development Companies in UK You Should Choose in 2025

The way your website or app looks and works can make a difference. A great design indeed catches the eye, but it also guides users and helps them find what they need quickly.

According to various reports, if your website offers a bad experience, you can risk losing 88% of online consumers. However, if you have designed your website beautifully and your users find it visually appealing, your conversion rate can go up to 200%.

This is the reason why many businesses are turning to the best UI/UX design and development. But it can still happen that the design and development may not meet your expectations, which can be because you may not have chosen the right company.

That is why we are here to help you choose a company known for doing amazing work, such as creating easy-to-navigate apps, user-friendly websites, and user experiences that the audience enjoys coming back to.

This guide will introduce you to the best 10+ UI/UX design and development companies in the UK for 2025.

The Best UI UX Design and Development Companies in 2025

1. Arramton Infotech

Let’s start with one of the best UI/UX design and development companies in the UK: Arramton Infotech. Whether you want UI/UX services for your e-commerce platform or B2B websites, they have ensured the best design and development that meets your business and user needs.

Check out their portfolio to learn how they have helped different businesses and brands build and design the best websites and apps like Bars of Beauty, GD Goenka, Amouraa Dating, etc.

They specialise in creating solutions across various business domains, including education, e-commerce, and logistics. They ensure the timely delivery of the projects, accountability, and client satisfaction.

Apart from development, Arramton offers digital marketing services such as SEO, content marketing, and social media management, allowing clients to rank and grab the attention of more customers.

These services will become useful for you after launching your app or website. This means you will get a full development and marketing package by partnering with Arramton.

Location: United Kingdom

Founded: 2015

Features That Make Them Unique

🔘Experts in UI/UX design

🔘Offers both design and development under one roof

🔘Keeps things clear with fixed timelines

🔘Works with small businesses and big companies

🔘A friendly team that listens to your needs

🔘Easy to contact and quick to respond

2. Lion+Mason

Lion+Mason is a specialist in UX and product design consultancy that offers the best UX and product design services. Whether you want to improve the B2B customer experience or design a new in-store sales experience, this UI/UX company can help you. Their expertise lies in:

🔘UX Design

🔘Service Design

🔘Product Design

🔘UI Design

🔘User Research

🔘User Testing

Their portfolio includes work with renowned clients such as Johnson & Johnson and Harley-Davidson, showcasing their ability to enhance B2B customer experiences and in-store sales through innovative design solutions.

They have their offices in London, Leeds, and Manchester, meaning they can serve clients across the UK.

Location: London, Leeds, Manchester

Founded: 2016

Features That Make Them Unique

🔘Specialist in UX and product design

🔘Trusted by well-known brands

🔘Uses real user feedback to guide design

🔘Makes websites and apps simple to use

🔘Helps companies understand what users want

🔘Gives full support from start to finish

3. Pocketworks

Pocketworks is a UK company based in Leeds that offers the best iOS & Android app development and design service. You can also check some of their work to see how beautifully they have designed apps for different companies and industries.

It partners with purpose-led brands to create engaging mobile experiences and digital platforms. They focus on research, testing ideas, and improving the app step by step to make sure it works well and helps users.

Their process includes studying the market, checking if ideas will work, and making ongoing updates. For example, their work with Carbs & Cals helped the company grow its revenue by 900%, showing how effective their approach can be.

Location: Leeds, UK

Founded: 2012

Features That Make Them Unique

🔘Focuses on building apps that people enjoy using

🔘Starts every project with strong research

🔘Great choice if you are making your first app

🔘Works closely with your team during the whole process

🔘Designs with care and tests everything

🔘Helps improve existing apps too

4. Brightec

Brightec also comes under the list of the best UI/UX design and development companies in the UK. However, they only provide design services for mobile apps. But their app designs help engage and benefit your users. They also provide you with the following advantages:

🔘Increased brand authority and engagement

🔘Give a more competitive advantage

🔘Boosts conversion rates

🔘Offer opportunities to collect testimonials

Brightec is an award-winning company with over 10 years of experience. They focus on building mobile apps that are easy to use and meet user needs.

They have worked with well-known brands like Virgin Trains and Waterstones, helping them grow and connect with more users. For example, the Virgin Trains app was downloaded more than a thousand times and saw a great growth in one year.

Location: London, England, UK

Founded: 2006

Features That Make Them Unique

🔘Great at mobile app design

🔘Builds apps that are fast and simple to use

🔘Long-term partner for growing apps

🔘Focuses on creating the best design

🔘Have a talented team of designers

🔘Clear process from idea to final app

5. Lumi

Lumi offers UI/UX design services to turn your idea into an experience that keeps users happy and improves business growth. It is a digital product studio that helps startups grow with great UX design and development.

They have worked with over 52 startups, helping them reach a combined value of $1.4 billion. Their services include design, development, and growth strategies, all focused on measurable business results.

By putting user needs first and improving products step by step, Lumi creates digital solutions that work well and can grow with the business.

Location: Edinburgh, UK

Founded: 2020

Features That Make Them Unique

🔘Works best with startups

🔘Helped build products worth over $1.4B

🔘Offers a growth strategy in addition to design and development

6. Momentum Design Lab

Momentum Design Lab, now part of HTEC, is known for creating user-focused digital products that improve business results. With offices in London, they work across industries like finance, healthcare, and retail.

They combine good design with advanced technology to build products that meet user needs and help businesses grow.

By using empathy design and data, they create experiences that connect with users and stand out in the market. Their services include digital product design, business transformation, and creative marketing.

Location: London, UK

Founded: 2002

Features That Make Them Unique

🔘Mixes design with smart business ideas

🔘Designs with a focus on both style and function

🔘Offers help from start to finish—idea to final product

7. The Gradient

The Gradient is a design agency that excels in creating innovative digital products. They also focus on AI-powered solutions, which help them design products that are used by millions globally.

They offer a full range of services, including product strategy, UX research, and UI/UX design. They also stay updated with the latest UI/UX design trends, which allows them to provide your website or app with a trendy design.

One standout project is Lumiere, an AI-powered video intelligence platform that shows how they combine advanced tech with user-focused design. Their work makes them a leader in the AI-driven design space.

Location: London, UK

Founded: 2015

Features That Make Them Unique

🔘Builds apps that use AI and other cool new tech

🔘Works with both small startups and big companies

🔘Has worked with clients in many different industries

Stays updated with new design styles

🔘The team knows how to handle detailed projects

🔘Helps turn complex ideas into simple products

8. Spaceberry Studio

Spaceberry Studio provides subscription-based design services for companies that need effective solutions and share their energy to bring their vision to life. They provide various UI/UX design services, including:

🔘Mobile App Design

🔘Web App Design

🔘Web Design

🔘SaaS Design

🔘UX Audit

🔘UX Research

🔘Design System Creation

They focus on understanding what their clients’ needs are, which helps them create designs that are good-looking, functional, and impactful.

With experience in development, product, and branding, they ensure every design supports the user's needs and business goals. Their thoughtful approach makes them a strong partner for building complex web and mobile apps.

Location: London, UK

Founded: 2020

Features That Make Them Unique

🔘Offers monthly design services—easy to start and stop

🔘Combining product, branding, and development knowledge

🔘Valuable for clients needing flexible and ongoing design help

9. Browser

Browser is a UX-focused digital agency that creates websites, apps, and digital products backed by research and user testing. They specialise in three core areas:

🔘User Research

🔘UX/UI Design

🔘Front-End Development

Their work is built on modern technology and driven by a team of experienced professionals. User testing helps them ensure each design decision improves both the look and the user experience.

Their focus on user-friendly interfaces has made them one of the best UI/UX design and development companies in the UK, which can provide unique digital products.

Location: London, UK

Founded: 2008

Features That Make Them Unique

🔘Focus on user research and testing

🔘Makes sure websites work smoothly on all devices

🔘Very clear about timelines and project steps

🔘Team is full of skilled designers

🔘Makes designs that are both useful and beautiful

10. Supercharge

Supercharge is a digital product partner that specialises in creating product strategies, user-friendly design roadmaps, and AI-driven software. They help businesses turn challenging digital projects into success by driving growth, efficiency, and resilience.

Clients consistently praise Supercharge for their expertise in UI/UX design, noting their attention to detail and ability to create intuitive, visually appealing interfaces.

With their ability to manage complex projects, Supercharge is a trusted partner for companies looking to innovate and deliver high-quality digital products.

Location: London, UK

Founded: 2010

Features That Make Them Unique

🔘Works on apps that use new technologies

🔘Works with companies across the UK

🔘Helps clients from the start of the project to the end

🔘Team is skilled in both design and development

🔘Designs apps that are ready for the future

11. Full Clarity

Full Clarity is a digital product and service design consultancy that combines research, UX design, and technical strategy. They have worked with clients like ITV, Harrods, and Gov.uk, as well as growing startups.

Their services include design-led transformation, software platform modernisation, and the creation of digital solutions. By focusing on both user experience and technical strategy, Full Clarity ensures its solutions are easy to use and technically reliable.

They deliver measurable results, making them a great partner for businesses who want to create a unique and stunning UI/UX design for their apps and websites.

Location: Farnham, England, UK

Founded: 2018

Features That Make Them Unique

🔘Works on detailed digital projects

🔘Focuses on user research and testing

🔘Helps clients grow and improve their digital products

🔘Clear design process with no surprises

12. Hedgehog Lab

Hedgehog Lab also falls under the list of the best UI/UX design and development companies in the UK. It is a global digital consultancy that specialises in providing the top and eye-catching UI and UX design.

They focus on user research to quickly identify, prototype, and validate digital products. With an emphasis on creativity, they create visually appealing and easy-to-use products.

Their design work is often praised for boosting user satisfaction and delivering successful digital solutions.

Hedgehog Labs are known for understanding user needs and creating designs, which have helped many businesses build great designs. Their portfolio shows that these businesses have made the right choice.

Location: Newcastle, UK

Founded: 2007

Features That Make Them Unique

🔘Creative design team

🔘Focuses on user-first design

🔘Strong in mobile app design and development

🔘Works with both new ideas and existing apps

🔘Trusted by many large companies

How to Choose the Right UI/UX Design & Development Companies in the UK for Your Needs?

There are many UI/UX design and development companies in the UK, which often makes you feel confused about choosing the one that will meet your needs. However, you need to know what to look for and match it to what you need.

Here is how you can make a smart choice that will benefit you.

1. Know What You Need

The first and most important step is to have a clear understanding of what you need. You should know:

🔘Do I need design or both design and development?

🔘Is it a website, a mobile app, or something else?

🔘Do I need branding too, or just UX help?

Being clear on these basics will help you filter out companies that don’t offer the right services and save you time.

2. Check Their Work

One of the best ways to judge a company is by looking at what they have already created. You can check their portfolio or case study section on their website.

Spend some time there to learn how they have designed and developed different websites and apps. See if they have worked with businesses similar to yours. Check their past designs and whether they feel good for you.

3. Read Client Reviews

Customer reviews are a good way to learn what working with a company is really like. You can review their company on platforms like Google. While you are taking a quick look at the star ratings, you should also look at the comments or Google reviews.

You should check and understand how the company has worked with their clients, whether they deliver the project on time, and how flexible they are when it comes to making small changes.

If you find positive reviews and satisfied clients, that is a great sign.

4. See how They Communicate

Great design is important, but smooth communication is just as important. The company you choose should respond quickly to your queries and understand your needs perfectly.

A good UI/UX company should explain their process in a simple way and keep you connected at every step. If your first few conversations go well and feel easy, working with them can also be smooth.

5. Check Their Process

Every serious design company follows a step-by-step method to complete projects. Ask them how they start—do they begin with research, interviews, or user testing? Do they let you see early versions of the design and give feedback?

If they follow a good process, it will help ensure your project becomes successful. It also gives you a better idea of what you can expect from them.

6. Ask About Tools and Tech

You should know the tools they will use for design and development. If you ask this, it will show that you are paying attention. Some may work with:

🔘Figma or Adobe XD for design

🔘Webflow, WordPress, or custom code for development

🔘Tools like Hotjar or Google Analytics for UX testing

Ask if they will help you understand these design and development tools and whether you will get access to the design files later.

7. Think About the Budget

Always talk about the cost early on. Some companies can charge you on an hourly basis, while others charge fixed prices for a full project. That is why you should know:

🔘What’s included in the price?

🔘Are there extra charges for changes?

🔘Do they offer a money-back policy if things don’t work out?

It will help you have a clear budget discussion with the company and set your budget accordingly.

Let Arramton Infotech Design and Develop Your Website or App with Stunning UI/UX

If you are planning to create a website or mobile app that looks amazing and is easy for your users to use, Arramton Infotech is your go-to partner.

With a talented team of designers and developers, they focus on creating user-friendly designs that make your product or services stand out. They take care of everything from planning and layout to the final touches and maintenance after launch.

Whether you are starting from scratch or upgrading your current platform, Arramton ensures that they design and develop the mobile app or website to match your business idea and needs, ensuring your users enjoy every click, swipe, and scroll.

They aim to help create something that works smoothly and leaves a good impression on your users. Reach out to them today to create a design experience that is simple, smart, and customised just for you and your business.

Final Thoughts

When we get down to searching for UI/UX design and development companies in the UK, we often don’t find the right and reliable companies. However, the list of companies we have created is known to be the best when it comes to excellent expertise in UI/UX design and development.

These companies have also worked on many successful projects and know how to make designs that users enjoy. Each one has unique features; some focus on research, others on design style, and some on full support from start to finish.

However, before choosing them, look at their work, explore their websites, and see which company matches your style and goals.

If you also want to partner with a company that listens to your ideas and creates stunning designs, you can let Arramton Infotech help you build your dream website or app. So, don’t miss out on a great opportunity; contact them today!

Frequently Asked Questions

Q1 What is the average cost of UI/UX services in the UK?

Ans In the UK, UI/UX services cost between £10,000 and £100,000+. The cost of these services can vary based on the duration of development and the experience of the agency you choose.

Q2 Is there a demand for UX designers in the UK?

Ans Yes, many businesses in the UK are designers who offer a great and user-friendly experience to their users and improve the design of their websites and apps.

Q3 What design trends are UK agencies following in 2025?

Ans UK design agencies in 2025 are following the below trends:

🔘Focusing on clean, simple, and easy-to-use layouts

🔘Dark mode designs

🔘Soft animations

🔘3D elements

🔘Voice-friendly interface

🔘Inclusive and accessible design

🔘Using AI tools to enhance user experiences

Q4 What tools do top UK UI/UX agencies use?

Ans The tools many UK uI/UX agencies use include Figma, Sketch, Adobe XD, InVision, and Miro for brainstorming. They also use Jira or Trello for project management.

Q5 What’s the difference between UI and UX design?

Ans UI (User Interface) includes the design elements that the users can see, like buttons, colours, fonts, layout, and screen appearance. UX (User Experience) is how they feel when using your app or website. UI is about appearance, while UX is about how your website functions. Both are required to develop eye-catching websites and apps.