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.
- 484 UK agencies offering web development
- Across 41 UK locations
- Reviewed 18 May 2026

BeeBrilliant! is a digital marketing agency dedicated to helping small businesses across the UK strengthen their online presence and grow with confidence. We bring big-business marketing thinking to ambitious SMEs-focused on generating more leads, driving sales, and delivering real, measurable results. With over two decades of combined industry experience, we offer a full suite of digital marketin

Mitchell & Stones is an Outsourced Marketing Department for ambitious businesses that need more than a generalist hire but aren't ready to build a full in-house team - giving clients a complete marketing function (strategy, content, social media, paid advertising, SEO, AI search, design and more) for a fraction of the cost of a single marketing salary. Based in Southampton and working with clients UK-wide, the agency is built around flexible commitment terms rather than long lock-in contracts, and our results speak for themselves: we've generated £8M+ from paid ad campaigns, grown LinkedIn audiences by over 1,300%, and secured hundreds of qualified B2B leads through paid search for our clients in a 6-month period.

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

Growthack is an Organic growth agency for eCommerce, SaaS and B2B brands. They help ambitious companies go Beyond SEO® with technical SEO, strategic content, brand authority and integrated paid media designed to win in the AI Search era.

Pixen is a premier digital marketing agency with bases in London and the South Coast. Our forte lies in custom web design, digital marketing, and search engine optimisation, delivering personalised strategies that amplify brand visibility and maximise performance for a broad range of businesses. Distinctively, Pixen champions eco-friendly hosting solutions, harnessing renewable energy to lessen en

Situated in the bustling centre of Manchester, I-COM is a leading full-service digital marketing agency. Renowned as one of the biggest independent, employee-owned agencies in the area, I-COM sets itself apart by delivering customised and wide-ranging digital marketing strategies in various industries such as B2C and B2B e-commerce, legal, recruitment, among others. Our unique approach amalgamates

As a premier digital performance marketing agency, K2L Marketing is situated in the heart of Salford Quays, Manchester. The firm excels in crafting, escalating and rocketing aspirational lifestyle brands to the top, through bespoke strategies designed to optimise sales and leads. Renowned for its comprehensive approach, K2L Marketing works tirelessly with brands, helping them realise their ultimat

Active Internet Marketing (UK), a Stamford-based digital marketing agency, distinguishes itself with a broad array of services. These encompass expert SEO, tailored PPC, professional web design, and bespoke social media marketing, all designed to expand and enhance our clients' customer reach. Demonstrating an unwavering dedication to research and development, as signified by a substantial £450K investment in the last 2 years.

Based in the UK, seoBusiness reigns supreme as a foremost digital marketing agency, renowned for its innovative and strategic approach. Unlike firms that plunge directly into SEO or paid advertising, seoBusiness prioritises extensive analysis first, unlocking genuine expansion opportunities for businesses. With a rich repertoire of over two decades in the industry, seoBusiness provides a diverse r

Harrison Carloss, an innovative digital and creative agency, is nestled in the heart of Stoke on Trent, Staffordshire. This agency is renowned for its unique approach to problem-solving, commencing each venture with a profound comprehension of the client's objectives and aspirations, enabling them to create bespoke solutions. Utilising their deep insights, they transcend limitations through compel

SK is a global, full service marketing agency, with specialisms in financial services and technology. We support our clients in building and adapting marketing strategies for success. We deliver advertising, SEO & GEO, design, copy, email marketing, PR, research, strategic consulting, web design, CRM and data strategy, social media marketing and much more to act as an extension of your team. We ar

Impact Media® is a leading WordPress agency situated in the UK, delivering tailor-made web design, development, and support specifically for corporate clients. Drawing on more than two decades of industry expertise and a steadfast dedication to WordPress, the agency develops bespoke, user-centric websites that prioritise creative freedom, robust security, SEO optimisation, and scalability.

We’re a professional marketing agency built for ambitious businesses across the UK, based in the creative heart of Liverpool’s Baltic Triangle. Whether you’re an e-commerce brand, a SaaS company, or a B2B business looking to dominate search, our team of SEO, PPC, web, design and social media experts turn organic traffic into real, measurable growth.

3 Sided Cube, a preeminent app development and digital product firm, operates from its HQ in Bournemouth, whilst also extending its reach to London, Washington, D.C., and Florida. This distinctive brand is renowned for its dedication to the crafting of technological solutions that foster social change. Through strategic partnerships with international organisations, they spearhead the creation of

First Internet, a distinguished digital marketing agency based in Hale, Greater Manchester, specialises in providing a comprehensive array of award-winning solutions. Renowned for its expertise in website design, development, and promotion, the agency also excels in offering an all-encompassing range of services encompassing eCommerce, SEO, and customised web applications. With an established repu

Bond is a leading brand design consultancy headquartered in Helsinki, with further creative hubs in Dubai, New York, San Francisco, and Tallinn. Specialising in the development of transformative brand strategies and identity systems, Bond excels in evolving fresh concepts into lasting brands. Whether it's pioneering new categories or innovating within established ones, Bond's distinct approach is

Damteq, a premier growth marketing agency headquartered in Fareham, Hampshire, stands out due to its dedicated focus on constructing well-organised, rational, and smart growth strategies. These strategies are grounded in a profound comprehension of business expansion and consumer behaviour, guaranteeing an unrivalled client experience. As a recognised Google Premier Partner, Damteq provides an ext

Loop Digital, a Northampton-based digital marketing firm, excels in providing bespoke digital marketing strategies. Our speciality lies in empowering small to medium enterprises (SMEs) with measurable growth and enduring success through our array of services, including SEO, web design, and conversion rate optimisation. Our distinctive trait is our dedication to building enduring client relationshi

An award-winning digital marketing agency based in Leicester, we have received multiple accolades and operate branch offices in Leamington Spa and Hemel Hempstead. We pride ourselves on our bespoke, data-informed, and ROI-centric strategies that span across SEO, PPC, social media management, content, digital PR and website development.

Located in the heart of Manchester, BGN Agency is a leading multi-disciplinary design agency. Known for our holistic approach, we integrate our team of strategists, designers, and developers directly into your business processes, enabling us to craft innovative and effective brand solutions.

Appdrawn, a distinguished custom software development agency located in Watford, Hertfordshire, specialises in creating tailored solutions that meet the distinct business requirements of their clientele. Known for its innovative and client-focused products, this brand is a standout in its sector. Expertly balancing modernisation of legacy software, mobile app creation, and database streamlining.

Finsbury Media, a UK-based digital marketing agency, boasts branches in London, Surrey, and Nottingham. This agency differentiates itself with its bespoke range of digital marketing solutions, encompassing SEO, content marketing, social media, and PPC strategies. Each service is meticulously tailored to intuitively align with customer intent and yield quantifiable outcomes. As a Google Premier Par

Fly High Media, a premier digital marketing firm, is located in the heart of Cheshire with an auxiliary office in Manchester. As a one-stop solution for all digital marketing needs, the agency provides a wide array of expert services such as Search Engine Optimisation (SEO), Pay-Per-Click (PPC), social media management, and bespoke website design, all tailored to amplify a business's online footpr

Fifteen, a Nottingham-based creative agency in the UK, is recognised for its bespoke website design and development services that are results-oriented. As an industry leader, Fifteen provides tailored digital marketing solutions, designed to revolutionise businesses. Their distinctive fusion of cutting-edge SEO, social media, and PPC management, integrated with professional web development and use
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.
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.
- · 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
Web Development agencies by city.
Web Development agencies for specific industries.
What brands ask about web development agencies.
5 questions our editors get most often, answered honestly. No agency-marketing speak.