Companies · category

Top IT Service Providers for UI/UX Design in the UK

939 IT service providers ranked by rating, review volume and listing quality.

UI and UX design are usually sold together and are not the same thing. UX is the shape of the product — what it does, in what order, and what a user is trying to achieve. UI is the surface: the controls, the visual language, the details of interaction. A product can be beautifully rendered and still ask people to do something illogical.

The most informative question for a provider here is what research they do before drawing anything, and what they do when it contradicts the brief. Teams that go straight to high-fidelity screens produce work that looks decisive and tests badly. Ask to see a project where the research changed the plan.

Want your company here?

Between them, the 600 best-ranked of these 939 IT service providers cover web development (572), web design (548), eCommerce (397) and WordPress (323). They also list work in London. 594 of them have written a profile you can read before you get in touch.

We list more than 900 IT service providers in the UK listed for UI/UX design. The order comes from what each firm publishes and what has been verified about it, never from payment — at the top right now: Eton Digital Limited, Website Express and ADVOX Studio.

Before you shortlist, check

Research with real users, not only visual design
Prototypes you can test before anything is built
A design system your developers can reuse
That you own the files and the research

Filter by fitbudget, engagement, size and more

Tradedoubler
Search Engine Optimization · Web Design · iOS App
Founded in Sweden in 1999 and listed on the OMX Nordic Exchange, Stockholm, in 2005, Tradedoubler is a leading international performance marketing company that drives results…
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Aquarium Software
Custom Software Development · Web Development · IT Services
We are an elite group of entrepreneurial technologists who in 2006 founded Aquarium and brought a shared vision to life.
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Quantanite
Web Development · Web Design · IT Services
Quantanite is a global professional services company focusing on business process automation and offshoring.
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Sage
Web Development · Web Design · IT Services
Be Sage. Build on. At Sage, we transform the way people think and work, enabling their organizations to thrive.
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NashTech Limited
Web Development · Web Design · iOS App
NashTech has been delivering Consulting, Software Solutions and BPO from its development centers in Vietnam since 2000.
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@DevHub
Web Development · Web Design · iOS App
Build your team in eight weeks and scale at your own pace. @DevHub was launched to reinvent the traditional IT outsourcing world because; quite frankly, we feel it’s outdated, not…
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Catalyst IT Europe Limited
Custom Software Development · Web Development · Web Design
Catalyst IT is a world-leading open-source company with an international reputation for delivering quality software while following strong open source development practices.
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Ascensos
Web Development · Web Design · iOS App
Ascensos is built on our belief that not all contact centres need be the same. We are owner-managed, quality-focused and agile offering our clients an unfair advantage.
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Cazoo
Web Development · Web Design · IT Services
Our mission is to transform the way people buy used cars. We realized that whilst people love their cars, they don’t always like the process of buying and selling them.
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Smart DCC
Web Development · Web Design · iOS App
At the DCC, we believe in making Britain more connected, so we can all lead smarter greener lives. We’re creating this future by digitizing Britain’s energy infrastructure.
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Ocado Technology
Custom Software Development · Web Development · Software Development
Ocado Technology is powering the future of online retail through disruptive innovation.
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Capita
Web Development · Web Design · iOS App
We deliver innovative solutions and simplify the connections between businesses and customers, governments and citizens.
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Tech Nation
Web Development · Web Design · IT Services
We believe the UK is the best place in the world to start and grow a digital business Tech Nation empowers ambitious tech entrepreneurs to scale faster through growth programmes,…
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GCI
Web Development · Web Design · iOS App
Multi-award-winning GCI is one of the UK’s leading ICT Service Providers, with offices across the UK.
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Big Marketing Ltd
Search Engine Optimization · Web Development · Web Design
Big Marketing. The full-service marketing agency. Follow us for ideas and inspiration (and advice on what NOT to do!) Marketing Agency Ideas with a difference...
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Serco
Web Development · Web Design · IT Services
Serco is one of the world’s largest providers of public services to Governments, employing over 50,000 people in over 20 countries.
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Quality Sales Leads Limited
Web Development · Web Design · iOS App
Quality Sales Leads Limited (QSL) is a boutique Inside Sales Consultancy that specializes in outbound B2B Lead generation, B2B Sales appointment making & outsourced telesales…
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minicabit
Web Development · Web Design · iOS App
As seen on Dragons Den, minicabit is a taxi cab comparison site for the UK, that lets you grab great deals across 550 UK locations.
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Smart Cookie Design Ltd
Mobile App Development · Search Engine Optimization · Web Development
Smart Cookie Design is an Ecommerce specialist agency and Shopify Experts helping businesses of all sizes grow online. Based in London.
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Product Hub Hob
Web Development · Web Design · Software Development
Or, looking to get into Product Management? Then we have a lot in common.
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Gibbs Hybrid
Web Development · Web Design · iOS App
Gibbs Hybrid is an international IT and Business Services firm providing a "one-stop-shop" helping customers with Project Consulting, Talent and Outsourced solutions, whilst…
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Inhealthcare
Mobile App Development · Web Development · Web Design
Inhealthcare is a digital health and telehealth provider working with NHS organizations to digitize care.
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cool Data Centres Limited
Web Development · Web Design · IT Services
Established in 2017, coolDC® – cool Data Centres Limited – offers a step-change in how data centres are designed, built, and operate.
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Simply Hosting & Servers
Web Development · Web Design · iOS App
With 15 years industry experience, we’re confident we can make even the most complex IT - simple.Our services range from VPS and public cloud to outsourcing your entire IT…
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How is this ranking worked out?

The order comes from what each firm publishes and what has been verified about it, and never from payment:

Profile completeness: the details a buyer needs to judge a firm — what it does, who it serves, how it prices, who it has worked for
Earned trust: verification, awards and the other checks a firm has actually passed
Client reviews, where they exist: the rating is smoothed, so one five-star review cannot outrank a firm with a hundred good ones, and volume counts with diminishing returns

Client reviews are still rare across this catalogue, so on most lists today the order is set by the first two. A firm near the top is the best-documented and best-verified one we hold, which is not the same claim as the best one to hire. Use the list to build a shortlist, then check the firms yourself.

Sponsored listings are labelled and shown apart from this list. How rankings work

Only firms whose profile names the UK are counted here, so a firm that lists a town but no country is not yet included.

Where else can I look?

The same list elsewhere: USA (1,355) · India (643) · Germany (422) · Poland (259).

Other specialisms in the UK: e-commerce (854) · Android app development (812) · iOS app development (800) · WordPress (752) · PHP development (728).

Every IT service provider in the UK: the full list.

Every category in the UK: the UK country page.

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Everything here links back to the same verified catalogue. Pick your next stop.

Top IT Service Providers for UI/UX Design in the UK

Tradedoubler

Aquarium Software

Quantanite

Sage

NashTech Limited

@DevHub

Catalyst IT Europe Limited

Ascensos

Cazoo

Smart DCC

Ocado Technology

Capita

Tech Nation

GCI

Big Marketing Ltd

Serco

Quality Sales Leads Limited

minicabit

Smart Cookie Design Ltd

Product Hub Hob

Gibbs Hybrid

Inhealthcare

cool Data Centres Limited

Simply Hosting & Servers