Web Development agencies in Belfast.
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. This page shows every agency on AgencyIndex offering web development in Belfast.
- 8 UK agencies offering web development in Belfast
- Part of the Web Development service set
- Indexed in Belfast
- Reviewed 18 May 2026
ProfileTree, a renowned digital marketing agency in Northern Ireland and Ireland, prides itself on providing a diverse spectrum of premium services. Our offerings range from elegant website design to robust web development and award-winning content marketing, all aimed at generating substantial ROI. More than that, ProfileTree is distinguished by its proficiency in digital training and SEO service
SEO Impact is a Northern Ireland-based SEO and web design agency helping small and growing businesses improve their visibility, enquiries, and sales. We specialise in SEO audits, technical SEO, local SEO, WordPress websites, WooCommerce websites, Shopify SEO, and conversion-focused website improvements.
As a premier branding, web, and marketing agency, Stenson Wolf is located in the heart of Belfast, Northern Ireland. They specialise in offering full-scale assistance to aspiring small businesses, with a keen emphasis on distinguishing brand identities, establishing a potent online presence, and implementing astute marketing strategies. By seamlessly merging brand strategy, web design and digital
Established in 2018, Clever Ghost is a revered brand and design studio located in the heart of Holywood, Northern Ireland. Our core mission is to instigate significant transformation through savvy design. As a behind-the-scenes operator, Clever Ghost provides an all-inclusive suite of services. These span from brand identity formulation and strategic branding to logo design, advertising campaign d
Established in 2016, ZOMA Brand Agency has been committed to helping businesses thrive in the digital world by fortifying their online presence. By the start of 2021, ZOMA Brand Agency had partnered with more than 550 clients spanning Ireland, Northern Ireland, the UK, Canada, the USA, the UAE, South Africa, and Australia, providing an all-inclusive service from website design to digital marketing
Green17, a Belfast-based digital agency, excels in creating bespoke mobile apps, websites, and digital marketing strategies. They differentiate themselves by crafting digital experiences tailored to user needs, including the Girlguiding Ulster app featuring customised notifications, and the NICHS website, which boasts integrated eCommerce and donation functions. Their broad spectrum of services en
Gekkoshot, a premier digital marketing firm stationed in Belfast, is renowned for its wide-ranging services. Our expertise encompasses web design, SEO, social media management, and bespoke content creation. At Gekkoshot, every client receives a tailor-made strategy crafted to effectively propel their brand visibility and organically boost lead generation. Our commitment towards client triumph is d
Vindicta Digital Marketing Agency, a premier UK-based digital marketing firm, excels in a variety of services including SEO, bespoke web design, video production, Google Ads, and social media management. What distinguishes Vindicta is their innovative marketing methodology, providing customised solutions that propel businesses to heights beyond their anticipations, from pinpointed SEO services to
AgencyIndex tracks 8 web development agencies in Belfast. The list above is filtered to that intersection and ordered with verified and featured listings first.
For the wider editor's view on web development agencies in the UK, see the web development service brief. For context on Belfast's marketing cluster, see the Belfast location brief. The pricing, timeline and red-flag notes below apply to web development as a discipline; they do not change materially in Belfast.
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 in other cities.
Other services in Belfast.
What brands ask about web development agencies.
The 5 questions our editors get most often, answered honestly. These apply to web development as a discipline regardless of city.