Connect with the most prominent and best-performing web development companies in the United Kingdom. View their awards, case studies, past projects, list of clients, reviews, rates and more to find the ideal team to create your next website.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
Solving complex problems with design and technology since 2005.
As a website development agency, Infinum makes it easy to turn your boldest ideas into digital products that streamline processes and grow your customer base. Superior solutions are born from our profound experience in design and technology, helping you reimagine and elevate your business...
Top Services:
- Web Development
- Web Design
- Mobile App Development
- UI/UX Design
- Software Development
- Show more
- Location
- London, United Kingdom
- Number of Employees
- 250 - 499
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 24 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsInfinum Services
Data sourced from the agency's DesignRush profilePorsche Nike CITI Royal Caribbean Philips Bayer T-Mobile P&G Universal Virgin Mobile
Infinum Reviews & Testimonials

Mobile App Development Review from Matic Debelak
Workstream 1: research and product strategyWorkstream 2: ETP release Technology : Vendor use Flutter framework, which allows one programming language and one codebase to create two different apps (for iOS and Android). Clearly defined roles and responsibilities, communication is clearly and respectfully, very effective project methodology, trying to understand every time how their activities fits into mission of Modra zavarovalnica, respect each member of team, etc.

Software Development Review from Claus-Peter Mueller
We have engaged Infinum to develop an app that would digitalise our leasing process. From creating the initial offer through the necessary financing application and client identification to the final signature – all the steps required to successfully lease a vehicle or other object can be performed in-app, freeing the users of friction and having to deal with tedious paperwork.The app itself in the background has 30+ integrations, while keeping a seamless and quick to follow process on the front for our users. That application is in production and Infinum is responsible for maintaining it and further improving. After the initial development, we have additionally expanded our scope from vehicles to other equipment. They have also developed a Leasing widget, product which enables quick financing model while purchasing a vehicle online on car seller marketplace pages. At this moment, we are still in partnership with Infinum, and their engagement is mainly focused on localising the app to other countries and supporting us in our further business expansion. The work performed was done in Ruby on Rails and React technology, with support of other services.
Web Design Review from Anonymous
Thanks to Infinum's website refresh, the client has seen an almost 100% improvement in their website's conversion rates. The team excels at project management, using the client's own proprietary tool and also Figma very well. Their proficiency in design, delivery, and client relations stands out.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWe build mobile apps, web platforms & AI workflows for organisations doing good in the world.
3 Sided Cube is a global mobile app and digital development company with a passion for Tech For Good, championing the genius over the generic to build life-saving, life-changing digital solutions...
Top Services:
- Mobile App Development
- Software Development
- Web Development
- AI Development
- Digital Services
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- Location
- Bournemouth, United Kingdom
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts3 Sided Cube Services
Data sourced from the agency's DesignRush profileAmerican Red Cross Surfers Against Sewage Omaze Vodafone | Glastonbury Festival LUSH Global Forest Watch The World Resources Institute University Of Bristol GDPC Wonderbly
3 Sided Cube Reviews & Testimonials
Si Muddell's Review Sourced from Google
Fantastically positive and driven team who on every interaction you just know care deeply about a) what they do b) what they deliver and c) ultimately the experience the end user will have.Hugely impressed with their personal, creative and energy driven approach at the pitch stage, I commissioned 3SC to help us better scope an app. Their task was to take an in-house developed app prototype, and turn it into a fully fledged technical specification with user stories, MoSCoW prioritisation, costs, and an updated look and feel; all done with audience need at the heart.Myself and the wider team have nothing but very good things to say about 3SC. When reflecting on an agency to work with, loads say they can do it, some can actually do what they say they can do, even less do it in the spirit of real partnership and mutually respect/drive. 3SC do all of these excellently. I highly recommend them.
Oliver Morrison's Review Sourced from Google
A passionate team of insanely talented experts, producing industry leading technology for good causes. Highly recommend.
Kev Borrill's Review Sourced from Google
Great Digital agency with a passion for making great mobile apps in the Tech for good industry
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsInnolab AI builds revenue engines, not just software. Jane creates pipeline. Luna closes it.
Innolab AI builds AI systems that sell for you.Jane replaces SDR teams with automated, hyper-personalized outbound.Luna calls and books meetings 24/7 with human-like conversations.We help B2B leaders generate pipeline, cut admin time, and scale revenue without chaos...
Top Services:
- AI Development
- Mobile App Development
- Web Development
- Software Testing
- Blockchain
- Show more
- Location
- London, United Kingdom
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $59/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsInnolab Services
Data sourced from the agency's DesignRush profileFlonest Dollar Shave Club Buddy Lee Jump ropes
Innolab Reviews & Testimonials

B2C Apps Review from Buddy Lee
Innolab delivered exactly what we needed a high quality, AI powered jump training app with realtime feedback and sleek design. The team was professional, collaborative, and hit every milestone on time. Highly recommend them for any innovative app development.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsSeek Magic.
We are a house of strategy, creative and digital technology specialists, delivering end-to-end brand experiences. With experience spanning decades, industries and continents...
Top Services:
- Design Services
- UI/UX Design
- Branding
- Web Design
- Creative Services
- Show more
- Location
- London, United Kingdom
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $130/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 6 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsPoppins Services
Data sourced from the agency's DesignRush profileDe Beers FujiFilm VistaJet GSK Royal Enfield EasyJet Movado Rolls Royce
Senior embedded Python teams for data, AI & SaaS
Python-first staff augmentation for SaaS, data engineering & AI/ML. Senior embedded engineers, CVs in 24-48 hours. No freelancers...
Top Services:
- Software Development
- Staff Augmentation
- Mobile App Development
- Web Development
- Big Data Analytics
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- Location
- London, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 7 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsUvik Software Services
Data sourced from the agency's DesignRush profileVantagePoint Drakontas SimpleLegal CommunityConnect Labs Fitdog
Best in Class Web Design & Development
We design best-in-class experiences and technology-led solutions that drive performance and growth...
Top Services:
- Web Design
- Web Development
- UI/UX Design
- Branding
- WordPress Website Design
- Show more
- Location
- London, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $140/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 4 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsKitty Services
Data sourced from the agency's DesignRush profile1Rebel Trotters Childrenswear Henry Cookson Adventures Signature Staff MTR UK OneBright Recast Mediworld TTP Trove Research
When Failure Isn't an Option. 15 Years. 50+ Platforms. Trusted by WHO & UK Government
Adappt is a UK-based software development company founded in 2011, trusted by the World Health Organization, UK Home Office, LexisNexis, and British Museum across 15 years of unbroken delivery. We provide dedicated development teams, bespoke software, AI solutions, mobile apps, and cloud infrastructure for...
Top Services:
- Web Development
- Web Design
- IoT
- AI Development
- Mobile App Development
- Show more
- Location
- London, United Kingdom
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $60/hr
- Minimal Budget
- $50,000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAdappt Ltd Services
Data sourced from the agency's DesignRush profileWHO Lexis Nexis Banijay CUBE
Build your own high-performing agile team!
Teqnovos is a leading mobile and web app development company that caters to the technological needs of a wide variety of businesses...
Top Services:
- Software Development
- Web Development
- Mobile App Development
- Blockchain
- UI/UX Design
- Show more
- Location
- London, United Kingdom
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTeqnovos Ltd Services
Data sourced from the agency's DesignRush profileECUTZ Dr Nancys BODY FRAME
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Why companies trust DesignRush
Every agency is independently vetted before it can be listed or ranked
Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.
Frequently Asked Questions
What certifications should a United Kingdom website development agency have?
A United Kingdom website development agency should have certifications related to legal compliance and information security to demonstrate professionalism and adherence to best practices.
Key credentials include:
- ISO 27001 for information security
- ISO 9001 for quality management
- Cyber Essentials or Cyber Essentials Plus for UK-specific cybersecurity assurance
It’s also helpful if the team holds platform-specific or developer certifications, such as AWS, Azure, GoogleCloud, Adobe, or recognized frontend/backend development credentials. Membership in professional bodies like BCS (The Chartered Institute for IT) further signals credibility and adherence to industry best practices.
How long does a typical web development project take?
A typical web development project takes 6-12 weeks, depending on the site’s size, features, and design complexity. Simple brochure-style websites may be completed in 3-6 weeks, while more advanced sites with custom functionality or integrations take longer.
Content readiness, feedback speed, and revision cycles also affect the timelines. eCommerce platforms or custom web applications can extend to 3-6 months or more due to testing, optimization, and deployment requirements.
What happens after a website development project finishes?
After a website development project finishes, the agency typically conducts final testing, quality assurance, and launch support to make sure the site works smoothly across all devices and browsers. They also hand over credentials, documentation, and training so your team can manage the site confidently.
Most companies offer ongoing maintenance, security updates, backups, and performance monitoring to keep the website stable and up to date. You can also choose optional services like content updates, feature enhancements, and SEO support to continue improving your site after launch.
Do web development companies in the United Kingdom offer fixed-price packages?
Yes, many UK web development companies offer fixed-price packages. When you consider a fixed-price package, make sure:
- The scope and deliverables are clearly defined upfront
- Payment terms, revisions, and any additional costs are transparent
- There’s clarity on what happens if the project scope changes or grows
Can web development agencies in the United Kingdom work within tight deadlines?
Yes, many web development agencies in the United Kingdom can work within tight deadlines, especially when dealing with well-defined projects or smaller websites. They often streamline timelines by allocating extra resources, using proven frameworks, and following efficient project management processes.
The ability to meet a fast turnaround depends on project complexity, content readiness, and how quickly you provide feedback. For urgent projects, agencies may offer expedited services at a higher rate to ensure quality isn’t compromised.








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