828 agencies indexed·Latest entry: 4 June 2026
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Service · 436 agencies

Web Development agencies.

Web Development is the technical build of a website or web application: writing code, configuring the CMS, wiring up integrations, and shipping a stable, performant product to production. It sits alongside web design, which is the visual and UX work, and is the discipline commissioned when the brief is to build, ship, and maintain.

At a glance
  • 436 UK agencies offering web development
  • Across 34 UK locations
  • Reviewed 18 May 2026
Showing 265-288 of 436 web development agenciesView in full archive
Complex Creative logo
Complex Creative
Independent·London·2-10 Employees

Complex Creative, an all-encompassing creative agency in London, excels in promoting digital sustainability and assisting clients to reduce their digital carbon emissions. Their distinguishing attributes include a genuine commitment to transparency and authenticity, eschewing industry norms of inflated promises and deficient delivery. Instead, their focus is on crafting high-performance, low-carbo

Staunton Rook logo
Staunton Rook
Independent·Chester·2-10 Employees

Staunton Rook, a leading digital marketing agency rooted in Chester, offers a fusion of creative ingenuity and strategic acumen in its comprehensive marketing solutions. Our unique ability to integrate offline and online marketing techniques gives life to powerful branding, compelling websites, and remarkable digital marketing and advertising initiatives. With over two decades of industry expertis

9xb logo
9xb
Independent·Leeds·11-50 Employees

9xb is a leading authority in bolstering businesses' online presence by putting customer needs at the forefront. Boasting a proficient team, 9xb is acclaimed for its comprehensive capabilities in complex eCommerce development, integrations, UX/UI design, and strategic growth, validated by a plethora of industry commendations. Many of the UK's largest and most complex enterprises value 9xb's Agile

Sellerdeck logo
Sellerdeck
Independent·Exeter·11-50 Employees

As a premier player in eCommerce technical execution, Sellerdeck specialises in the development and upkeep of eCommerce websites, leveraging the power of WooCommerce and Magento platforms. Our journey with you begins from the initial blueprint and progresses through development, culminating in secure, high-speed hosting. Our partnership has been instrumental in the success of countless websites.

mso Web Agency logo
mso Web Agency
Independent·Kent·11-50 Employees

MSO Web Agency, nestled in the heart of West Kingsdown, Kent, is a leading digital solutions provider specialising in tailoring bespoke website experiences that propel clients' growth. They offer customised, aesthetically pleasing, and high-functioning digital solutions. Their distinctive strategy concentrates on creating superior websites, specifically designed to cater to diverse sectors, encomp

Visibility Agency logo
Visibility Agency
Independent·Nottingham·2-10 Employees

Visibility Agency, a leading Digital Marketing firm, is strategically positioned in Nottingham, UK. The agency excels in the realms of Search Engine Optimisation (SEO), Pay-Per-Click (PPC) Advertising, and Conversion Rate Optimisation (CRO), utilising sophisticated campaigns, accurate data, and cutting-edge technology to augment visibility while reducing client stress levels. With a successful his

Capsule Marketing logo
Capsule Marketing
Independent·Essex·2-10 Employees

As a UK-based creative agency, Capsule Marketing is renowned for its masterful application of motion design and social media marketing. We offer compelling visual narratives and astute strategic insights to bolster brand engagement. Our suite of specialised strategies are crafted to exploit platforms such as Instagram, enabling effective connection with an array of audiences. This includes busines

KW Marketing logo
KW Marketing
Independent·Exeter·2-10 Employees

KW Marketing, a distinguished digital marketing consultancy, operates from the heart of Exeter and London. Spearheaded by the ingenious Kate Williams, the firm is acclaimed for its data-guided strategies that adeptly turn online traffic into actual sales. Our areas of expertise notably include social media, email marketing, and Google Ads, where we consistently outperform. What sets KW Marketing a

HC Media Group logo
HC Media Group
Independent·Essex·11-50 Employees

As a premier digital marketing consultancy in Colchester, Essex, HC Media Group prides itself on devising human-focused, authentic marketing strategies. We distinguish ourselves by minimising AI usage, opting instead for genuine, human-centric approaches that resonate deeply with target audiences. Our extensive suite of tailored services encompasses website design, SEO, Google AdWords, and social

Mitchell & Stones logo
Mitchell & Stones
Independent·Southampton·11-50 Employees

Mitchell & Stones is your committed external marketing ally, purposed for magnetising your ideal audience's attention and escalating their interaction with your business. The agency is anchored on the conviction that extraordinary accomplishments are birthed from robust synergy, innovation, and dynamism, mutually fostered between the firm and its clients. This is why clients are never restrained b

Cheshire Online logo
Cheshire Online
Independent·Manchester·2-10 Employees

Cheshire Online, a Congleton-based digital marketing agency in Cheshire, distinguishes itself through its unwavering dedication to the exploration of cutting-edge digital technologies. The firm continually invests in researching fresh strategies, aiming to deliver innovative digital solutions that furnish clients with a distinct competitive advantage. More than just a provider of web design servic

The Inter Group logo
The Inter Group
Independent·Leeds·11-50 Employees

The Inter Group (TIG), a leading digital marketing agency, is nestled in the heart of Knaresborough, North Yorkshire. Showcasing a unique blend of media, creativity, technology, and data, we offer a wide range of customised marketing services that breathe life into our clients' visions. TIG, backed by more than half a century of industry experience, has built a formidable reputation, earning the t

GrowCreate logo
GrowCreate
Independent·Oxford·11-50 Employees

Specialising in UX design and .NET web development, GrowCreate is a UK-based digital agency renowned for its exceptional support services available 24/7. Our unique selling point lies in our agile development methodologies, proficiency in managing AWS and Azure cloud platforms, and our commitment to delivering smooth and efficient digital experiences to international brands. As an esteemed Umbraco

Brew Digital logo
Brew Digital
Independent·Norwich·11-50 Employees

Brew Digital, a pioneering digital marketing firm with operations in London, Norwich, Toronto, and Kuala Lumpur, is renowned for its inventive decision-making and teamwork strategies. Our agency supports businesses in devising effective digital strategies that yield measurable outcomes. At Brew Digital, we're distinguished for cultivating enduring relationships underpinned by a positive, honest, a

gloversure logo
gloversure
Independent·Chester·11-50 Employees

As a leading digital agency in Welshpool and Chester, Gloversure is celebrated for its dedication to transforming the online sphere. Pioneering in the digital industry, Gloversure operates on a foundation of creativity and transparency, offering an extensive array of services such as bespoke web design, custom development, eCommerce solutions, mobile app development, branding, and marketing. Our e

Athlon logo
Athlon
Independent·London·2-10 Employees

As a global brand and product design studio, Athlon is a key player in the international market. Working closely with enterprises driven by purpose, it transforms daring ideas into tangible realities. Athlon fundamentally champions 'Brave Ideas', acknowledging the transformational power of design and its potential to improve lives through innovative and audacious thinking. In Athlon's perspectiv

Muve Media & Marketing logo
Muve Media & Marketing
Independent·Kent·2-10 Employees

Muve, a Kent-based marketing agency, excels in redefining marketing communications with innovative strategies and teamwork. Its distinctive approach lies in its dedication to creating campaigns that balance creative flair with cost-effectiveness, breathing fresh enthusiasm, profound understanding, and forward-thinking concepts into marketing ventures. The agency's versatile nature is mirrored in i

Diony logo
Diony
Independent·Leeds·11-50 Employees

Diony, based in Hull, is a fully-fledged performance marketing agency renowned for its search-first marketing strategy. Our services span across SEO, PPC, social media, eCommerce, and imaginative solutions, all designed to propel brand expansion. Employing a unique blend of expert talent, innovative technology, and a vibrant culture, Diony is dedicated to crafting and executing influential concept

Gavin Willis Creative Marketing logo
Gavin Willis Creative Marketing
Independent·Northampton·2-10 Employees

Gavin Willis Creative Marketing (GWCM) is a prominent digital marketing and web design agency rooted in Northampton and Shoreditch, London. With an impressive track record of 28 years, GWCM is renowned for its strategic prowess and extensive service range, encompassing branding, digital marketing, video production, and WordPress support services. These services are instrumental in elevating brand

Sweans logo
Sweans
Independent·London·51-200 Employees

Situated in the heart of London, Sweans proudly positions itself as a premier web design and eCommerce agency, celebrating over 16 years of industry expertise. Specialising in WordPress, Shopify, and bespoke eCommerce solutions, Sweans is committed to elevating Direct-to-Consumer (D2C) brands. With a global portfolio of more than 3,000 fulfilled clients, Sweans takes immense pride in delivering cu

m360 logo
m360
Independent·Nottingham·11-50 Employees

As a premier creative agency in Nottingham, M360 boasts a rich legacy exceeding three decades. M360 is celebrated for its ingenious branding, unparalleled creativity, and flawless service, infusing brands with vitality via custom-made marketing strategies that align perfectly with each client's individual requirements and objectives. Our proficiency in design, marketing, and digital solutions guar

LoudLocal logo
LoudLocal
Independent·London·2-10 Employees

LoudLocal, a reputable digital marketing agency headquartered in Kenilworth, Warwickshire, boasts a secondary office in London. Specialising in delivering clear, straightforward digital marketing solutions, this agency is dedicated to addressing the unique requirements of small to medium-sized businesses at a local and global level. With an ethos centred around flexibility, LoudLocal shuns the con

Barques logo
Barques
Independent·Birmingham·11-50 Employees

Barques is a Birmingham-based creative agency, specialising in producing compelling communications that stimulate growth for brands, irrespective of their scale. Barques stands out due to their cooperative methodology, amalgamating state-of-the-art design with pioneering technology to craft tangible assets that engage audiences on diverse platforms. Their internal team comprises designers, develop

Axonn Media logo
Axonn Media
Independent·London·2-10 Employees

Axonn is a premier digital marketing agency headquartered in London, renowned for its unique integration of cutting-edge technology and a keen focus on emotional connectivity. This distinctive approach places personal touch at the heart of all their campaigns and client relationships. Their all-encompassing services range from strategic planning, content production, campaign execution, to insightf

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Editor's note
Web Development in the UK splits, in 2026, into three honest tiers. Boutique studios and senior freelancers build brochure sites and small WordPress projects in the £2,000-15,000 band. Mid-market agencies running custom React or Next.js stacks, headless CMS work, and mid-size ecommerce sit at £10,000-50,000. Network shops and specialist platform teams handle complex web apps and enterprise ecommerce from £50,000 into six figures. AgencyIndex tags 429 UK agencies as Web Development providers. The stack shapes everything else. WordPress is still the volume default for content sites and runs cheapest to maintain. Custom React or Next.js, often paired with a headless CMS like Sanity, Contentful, or Storyblok, costs more up front but wins on performance, Core Web Vitals, and long-term flexibility. Ecommerce sits on its own axis (Shopify, Shopify Plus, WooCommerce, or fully headless), and web apps are a separate discipline. Two shifts now sit underneath every brief. The European Accessibility Act, enforceable from 28 June 2025, means any UK site selling into the EU is expected to meet WCAG 2.1 AA. Core Web Vitals remain a Google ranking signal, so performance is no longer a post-launch optimisation. Filter the index by stack, sector, and ownership to find who is actually doing the work.
Typical cost
£2,000-150,000+
per project

Brochure / small WordPress £2,000-15,000 · Custom React or Next.js £10,000-50,000 · Mid-size ecommerce £8,000-50,000 · Complex web apps and SaaS £50,000-150,000+. Maintenance retainers £150-2,000+ per month.

Realistic timeline
4 weeks-9 months
per launch

Brochure sites 4-8 weeks · Ecommerce 8-16 weeks · Complex web apps 4-9 months. Phases: discovery 1-4wks, design 1-6wks, build 1-20wks, QA 1-4wks, launch.

Red flags
6 to watch
in any pitch
  • · Refusal to hand over source code ownership or repo access on handover
  • · Proprietary CMS or hosting lock-in that makes migration off the platform painful
  • · Hidden offshoring with no named technical lead and no time-zone overlap
  • · No SLA on bug fixes, no documented post-launch support terms
  • · Can't talk fluently about Core Web Vitals, Lighthouse, or WCAG 2.1 AA accessibility
  • · Suspiciously low fixed-price quotes that skip discovery and assume zero scope creep
Frequently asked

What brands ask about web development agencies.

5 questions our editors get most often, answered honestly. No agency-marketing speak.

Curated by humans

UK web development pricing splits by project type. A brochure or small WordPress site from a proper agency runs £2,000-15,000. Custom React or Next.js builds, usually paired with a headless CMS, sit at £10,000-50,000. Mid-size ecommerce lands between £8,000 and £50,000 depending on integrations. Complex web apps and SaaS platforms start around £50,000 and climb past £150,000 for enterprise work. Maintenance retainers are separate and typically run £150-2,000+ per month.