Startup ecosystem
Top startups in London.
London is Europe's largest startup hub and its fintech capital, home to a string of neobanks and payments companies as well as a fast-growing base of AI and deep-tech firms.
Notable startups
A curated list of companies headquartered in London, spanning the sectors that define its ecosystem. Each links to the company; where we hold their pitch deck, it's linked too.
Revolut ↗
FinTech
revolut.com
The financial super-app offering banking, cards, currency exchange, and investing to tens of millions globally.
Founded
2015
Stage
Late Stage
Valuation
~$45B
Monzo ↗
FinTech
monzo.com
One of the UK's leading digital banks, known for its bright cards and mobile-first current accounts.
Founded
2015
Stage
Late Stage
Valuation
~$5.9B
Wise ↗
FinTech
wise.com
Cross-border payments company (formerly TransferWise) built to make international money movement cheap and transparent.
Founded
2011
Stage
Public
Raised (SEC)
$50M
Deliveroo ↗
Marketplace
deliveroo.com
Food and grocery delivery marketplace operating across Europe, the Middle East, and Asia.
Founded
2013
Stage
Public
Darktrace ↗
AI
darktrace.com
Cybersecurity company using self-learning AI to detect and respond to threats across enterprise networks.
Founded
2013
Stage
Acquired
Wayve ↗
AI
wayve.ai
Developer of embodied AI for self-driving, using end-to-end learning rather than hand-coded rules.
Founded
2017
Stage
Series C
Valuation
~$1B
Synthesia ↗
AI
synthesia.io
AI video platform that turns text into presenter-led videos with digital avatars.
Founded
2017
Stage
Series D
Valuation
~$4B
Stability AI ↗
AI
stability.ai
Open generative-AI company known for the Stable Diffusion family of image models.
Founded
2019
Stage
Late Stage
Starling Bank ↗
FinTech
starlingbank.com
A profitable UK digital bank offering personal and business current accounts, and a banking-as-a-service platform.
Founded
2014
Stage
Late Stage
Valuation
~$2.5B
GoCardless ↗
FinTech
gocardless.com
Bank payment network specializing in recurring and account-to-account payments for businesses.
Founded
2011
Stage
Late Stage
Valuation
~$2.1B
Checkout.com ↗
FinTech
checkout.com
Global payments platform providing processing, acquiring, and payouts for large merchants.
Founded
2012
Stage
Late Stage
Valuation
~$40B
ElevenLabs ↗
AI
elevenlabs.io
AI voice company building lifelike text-to-speech, dubbing, and voice-agent tools.
Founded
2022
Stage
Series C
Valuation
~$3.3B
Improbable ↗
Software
improbable.io
Metaverse and large-scale simulation technology company powering virtual worlds and events.
Founded
2012
Stage
Late Stage
Multiverse ↗
EdTech
multiverse.io
Apprenticeship platform offering an alternative to university and reskilling programs for the workforce.
Founded
2016
Stage
Series D
Valuation
~$1.7B
Quantexa ↗
AI
quantexa.com
Decision intelligence platform using data and AI for financial-crime detection and risk analysis.
Founded
2016
Stage
Series F
Valuation
~$2.6B
Valuations are approximate, drawn from the most recent reported figures as of Sep 2026.
Accelerators in London
London founders can apply to 153 accelerator programs in our directory — including 350 PPM, Abbey Road Red, Accelerator Academy, Accelerator Assembly, Activate Studio, Algorand Europe Accelerator.
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