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UX Design in London · 121 agencies

UX Design agencies in London.

UX Design is the research-led discipline that shapes how a product behaves for the people using it: user research, journey mapping, information architecture, wireframes, and usability testing. Distinct from Web Design (the visual and build layer) and Product Design (which wraps UX with engineering and roadmap). This page shows every agency on AgencyIndex offering ux design in London.

At a glance
  • 121 UK agencies offering ux design in London
  • Part of the UX Design service set
  • Indexed in London
  • Reviewed 17 May 2026
Showing 121-121 of 121 ux design agencies in LondonAll UX Design agencies
Jellyfish logo
Jellyfish
Network·London·1000+ Employees

Jellyfish is an integrated global digital marketing business founded in 2005 and headquartered at The Shard in London. Since June 2023 it has been part of The Brandtech Group, uniting media, creative and data through technology and generative AI.

SEOPPCDigital StrategyCreativeContent Marketing+8 more services·Media & EntertainmentFashion & RetailFMCG+1 more industries
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Editor's note

AgencyIndex tracks 121 ux design agencies in London. The list above is filtered to that intersection and ordered with verified and featured listings first.

For the wider editor's view on ux design agencies in the UK, see the ux design service brief. For context on London's marketing cluster, see the London location brief. The pricing, timeline and red-flag notes below apply to ux design as a discipline; they do not change materially in London.

Typical cost
£3,000-200,000+
per project

Light audit and wireframing £3,000-10,000 · Mid-market discovery, research, prototyping, and testing £15,000-60,000 · Enterprise research and complex product systems £50,000-200,000+. Standalone UX audits and heuristic reviews £1,500-10,000. Agency day rates £500-1,200 for mid to senior practitioners, £1,200-1,600 for lead consultants.

Realistic timeline
8-20 weeks
per engagement

Small engagement 4-6 weeks · Standard project 8-12 weeks · Large or multi-team programme 12-20 weeks. Phases: discovery and research 1-4wks, information architecture and wireframes 2-3wks, prototyping 2-3wks, usability testing 1-2wks (often overlapping prototyping), handover 1wk. Continuous research retainers run open-ended.

Red flags
6 to watch
in any pitch
  • · Pitch jumps straight to wireframes or UI screens with no research, interviews, or journey work
  • · No usability testing built into the scope, only deliverables (X wireframes, Y screens, Z personas)
  • · Designer-led, not user-led: aesthetic preference framed as insight, no behavioural evidence
  • · Personas presented without research method, sample size, or quotes from real users
  • · Accessibility and WCAG 2.1 AA never raised, despite the European Accessibility Act being in force
  • · Refusal to name the practitioners doing the research or disclose subcontracted moderators
UX Design across the UK

UX Design agencies in other cities.

All locations
UX Design in Birmingham16UX Design in Leeds16UX Design in Manchester16UX Design in Brighton12UX Design in Bristol12UX Design in Nottingham11UX Design in Oxford9UX Design in Bournemouth8UX Design in Glasgow8UX Design in Essex7UX Design in Kent7UX Design in Sheffield7
Other disciplines in London

Other services in London.

All London agencies
Digital Strategy in London185SEO in London160Web Design in London159Web Development in London140PPC in London134Branding in London125Content Marketing in London123Creative in London97Email Marketing in London75Mobile App Development in London58Video Production in London56Digital PR in London52
Frequently asked

What brands ask about ux design agencies.

The 5 questions our editors get most often, answered honestly. These apply to ux design as a discipline regardless of city.

Curated by humans

UK UX design pricing splits by depth of engagement. A light UX audit, heuristic review, or wireframing job runs £3,000-10,000. A mid-market consultancy project covering discovery, user research, journey mapping, prototyping, and usability testing lands at £15,000-60,000. Enterprise UX research programmes with multiple segments, stakeholder workshops, and longitudinal study run £50,000-200,000 and up. Standalone audits sit at £1,500-10,000. Day rates across the UK market run £500-1,200 for mid to senior practitioners, per Moken Digital and Readysalted's 2026 guides.