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Web Development for Startup · 27 agencies

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.

At a glance
  • 27 UK agencies offering web development for Startup
  • Part of the Web Development service set
  • Indexed for Startup
  • Reviewed 18 May 2026
Showing 25-27 of 27 web development agencies for StartupAll Web Development agencies
Incisive Edge logo
Incisive Edge
Independent·London·11-50 Employees

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

BrandingContent MarketingDigital StrategyEmail MarketingPPC+4 more services·EducationFinanceHealthcare+4 more industries
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KIJO logo
KIJO
Independent·Birmingham·11-50 Employees

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

BrandingDigital StrategyPPCSEOUX Design+2 more services·Fashion & RetailFood & BeverageStartup
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SeekThem logo
SeekThem
Independent·London·11-50 Employees

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

BrandingCreativeDigital StrategyUX DesignWeb Design+1 more services·Fashion & RetailFood & BeverageReal Estate+2 more industries
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Editor's note

AgencyIndex tracks 27 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.

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
Web Development across industries

Web Development agencies in other sectors.

All industries
Web Development for IT & Technology203Web Development for Fashion & Retail151Web Development for Food & Beverage142Web Development for Finance138Web Development for Healthcare122Web Development for Education120Web Development for Real Estate116Web Development for Hospitality109Web Development for Automotive107Web Development for Non-Profit Organisation104Web Development for Travel & Tourism102Web Development for Legal94
Other disciplines for Startup

Other services for Startup.

All Startup agencies
Digital Strategy for Startup32SEO for Startup30Web Design for Startup30Content Marketing for Startup27PPC for Startup26Branding for Startup25Email Marketing for Startup20Creative for Startup18UX Design for Startup18Social Media Advertising for Startup14Digital PR for Startup12Mobile App Development for Startup12
Frequently asked

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.

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.