Web Development Agency in London
We build high-performance web apps, SEO strategies, and AI automation for London startups and scale-ups.
Why London businesses choose KAUFAST
London's startup ecosystem is one of the most competitive in the world. Fintech companies in Canary Wharf, professional services firms in the City, and DTC brands in Shoreditch all face the same challenge: digital products need to work perfectly and rank well to justify their cost. We work with early-stage startups that need a fast MVP, scale-ups outgrowing their first-generation tech stack, and established businesses that want AI to reduce operational overhead. Our London base is at Hatton Garden in EC1N, and we meet clients in person regularly. We understand UK procurement culture, IR35 considerations, and the timeline pressures of fundraising rounds. Most London web projects run 8–12 weeks from kickoff to production. We have shipped products for clients across fintech, legal, property, and e-commerce — sectors that represent a significant share of London's digital economy.
What we build in London
Web Development
High-performance web applications, e-commerce platforms, and internal tools built to scale.
SEO
Technical SEO, content strategy, and link building that drives qualified organic traffic.
AI Development
AI agents, automation pipelines, and LLM integrations that reduce manual work.
Recent work
Our London office
63 Hatton Garden, 5th Floor
EC1N 8LE London
Also working in
Questions from London clients
Do you work with London-based startups?
Yes — most of our UK clients are early-stage or Series A startups. We are comfortable with the pace and ambiguity that comes with that stage, and we can work within tight fundraising windows.
Can we meet in person?
Absolutely. We are based at 63 Hatton Garden, EC1N 8LE, in the heart of London's tech and jewellery quarter. We hold regular in-person workshops and kick-off sessions there.
What is your typical project timeline?
Most web development projects run 8–12 weeks from signed contract to production launch. SEO retainers start showing measurable movement in 90 days. AI automation scoping takes 2–3 weeks before build begins.
Do you work with non-tech founders?
Often. We translate business requirements into technical specs and manage the full build, so founders can focus on product and customers rather than sprint planning.
What industries do you serve in London?
Primarily fintech, legal tech, property, e-commerce, and professional services. These are the sectors where we have the deepest knowledge of user behaviour and regulatory considerations in the UK market.