Web Development agencies for Startup.
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 for Startup.
- 33 UK agencies offering web development for Startup
- Part of the Web Development service set
- Indexed for Startup
- Reviewed 18 May 2026

YellowInk is an SEO and digital marketing agency based in the United Kingdom (UK), dedicated to helping startups and small businesses grow online. We offer tailored services including SEO, content marketing, PPC, email marketing, social media management, social media advertising, website design & development, and LinkedIn marketing. Our focus is on delivering affordable, effective strategies that

Futurice, a leading digital transformation agency, hails from Finland. The agency distinguishes itself with an exceptional interdisciplinary methodology, merging top-tier technologists, strategists, and designers. They specialise in offering ground-breaking, quantifiable digital solutions spanning various sectors. Renowned for its swift outcomes and enduring influence, Futurice works in concert wi

As a leading digital agency, Solution17 delivers a comprehensive suite of 17 services, tailored to the unique needs of businesses both large and small. Whether you're in the initial stages of launching a fresh venture requiring an all-encompassing digital footprint, or an already established business seeking a digital revamp, Solution17 is your perfect partner. Staying at the forefront of the la

Catch, a London-based digital agency, is recognised for its proficiency in crafting superior digital experience platforms. This standout agency specialises in an all-encompassing range of services, including digital strategy, experience design, technology, and performance optimisation. Emphasising its dedication to accessibility and inclusion, Catch boasts team members such as Ann Pilbeam, who ard

NBT is a London-based growth-centric agency, with a global footprint stretching across Turkey, the UAE, Germany, Netherlands and Florida. With a unique ecosystem that bolsters business expansion through bespoke services such as growth strategy implementation and digital marketing, NBT sets itself apart. Our signature offerings like the Growth Academy and NBT Venture Studio equip businesses with th

Together is a bold, strategy-focused design and development agency headquartered in a confidential location. They excel in forging strategic alliances with premier B2B tech brands. Renowned for their innovative methodology, Together seamlessly transforms clients' aspirations into reality using state-of-the-art design and technology solutions. Their proficiency in remote partnerships, coupled with

Based in London, Incisive Edge is a growth-focused marketing agency specialising in B2B technology and SaaS. They provide a strategic blend of inbound marketing, content creation, marketing automation, and demand generation to help clients-from startups to global enterprises-accelerate pipeline and ROI. By focusing on measurable outcomes and data-driven insights, Incisive Edge empowers organisatio

KIJO, a pioneering web design agency nestled in Birmingham, was established by a duo of brothers as a family-run enterprise. The agency stands out for its unique pledge to collaborate solely with businesses that mirror their core values, guaranteeing significantly influential partnerships. By expertly fusing design, technology, and performance, KIJO differentiates itself, delivering outstanding ou

SeekThem, a leading B2B branding agency situated in London, distinguishes itself through its dedication to cost-effectiveness and the utilisation of top-tier branding specialists, representing the top 1% of the industry. This ensures that every project they undertake boasts unparalleled quality and originality. They provide an all-encompassing suite of services, from distinctive logo creation, hol
AgencyIndex tracks 33 web development agencies for Startup. 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 Startup as a sector, see the Startup industry brief. The pricing, timeline and red-flag notes below apply to web development as a discipline; they do not change materially for Startup.
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 sectors.
Other services for Startup.
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 across every industry.