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Series A Companies in London

Explore 498 series a startups based in London, United Kingdom. Access verified founder contact information and fundraising data.

Total Companies
498
Total Funding
$353.4M
Avg Funding
$14.1M
Industries
13

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Clinical Trials
$403K
raised

Little Journey offers assistance to kids and their families who are getting medical treatments or taking part in scientific trials.

Jul 2025
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$13.0M
raised

Gradient Labs builds an AI customer service platform for financial firms, automating support, compliance, and complex operational workflows.

Jul 2025
Series A

Founder Contacts

30,000+ verified contacts

$9.0M
raised

MediShout is a digital platform to improve operational efficiencies, so healthcare staff can focus on patient care.

Jul 2025
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$12.0M
raised

Yaspa is a fintech company that leverages open banking and AI to deliver instant payment and identity services.

Jul 2025
Series A

Founder Contacts

30,000+ verified contacts

Health Care
$4.1M
raised

Tonic Health is a natural product designed to support the immune system.

Jul 2025
Series A

Founder Contacts

30,000+ verified contacts

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Artificial Intelligence (AI)
$25.0M
raised

Maze a platform that uses AI agents to investigate and resolve cloud security vulnerabilities.

Jun 2025
Series A

Founder Contacts

30,000+ verified contacts

Health Care
$30.0M
raised

Mind provides advice and support to empower anyone experiencing a mental health problem.

Jun 2025
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$4.8M
raised

Filament helps clients to build proprietary AI capability within their organisation, through consultancy, solutions and tooling

Jun 2025
Series A

Founder Contacts

30,000+ verified contacts

Information Technology
$20.0M
raised

Skyral Group is a software company that provides data visualization, data modeling, AI, and simulation services.

Jun 2025
Series A

Founder Contacts

30,000+ verified contacts

Analytics
$13.4M
raised

The all-in-one platform to streamline your public sector sales.

May 2025
Series A

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Employee Benefits
$12.0M
raised

Ravio is a real time compensation benchmarking platform to understand salary and equity benefits.

May 2025
Series A

Founder Contacts

30,000+ verified contacts

Data Integration
$20.0M
raised

StackOne is an integration platform that connects SaaS products through APIs.

May 2025
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$7.8M
raised

Setting the global standard for image recognition powered by synthetic data.

Apr 2025
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$10.0M
raised

tldraw is an infinite canvas SDK.

Apr 2025
Series A

Founder Contacts

30,000+ verified contacts

E-Commerce
$7.3M
raised

Ryft is a payment platform that allows marketplaces and digital platforms.

Apr 2025
Series A

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Information Technology
$9.0M
raised

Cost Transparency SaaS solution

Apr 2025
Series A

Founder Contacts

30,000+ verified contacts

$7.0M
raised

Unravel delivers immersive digital transformation and engagement with travellers through short-format, shoppable videos.

Apr 2025
Series A

Founder Contacts

30,000+ verified contacts

Cyber Security
$13.6M
raised

Securing worldwide enterprises by connecting them with top cybersecurity professionals through Continuous Pentesting.

Mar 2025
Series A

Founder Contacts

30,000+ verified contacts

Consulting
$10.0M
raised

Technology focused Virtual assistance service

Mar 2025
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$15.0M
raised

Code Optimisation Platform

Mar 2025
Series A

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
Unlimited exports
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Clean Energy
$17.4M
raised

Developing the world's first high pressure, ultra-efficient electrolyser and lowest cost of pressurised green hydrogen.

Mar 2025
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$35.0M
raised

Relay is a technology-enabled delivery network that provides an AI-powered network to enhance end-to-end delivery for merchants.

Feb 2025
Series A

Founder Contacts

30,000+ verified contacts

Cyber Security
$13.1M
raised

ThreatSpike delivers true end-to-end cyber security for companies of any size. Rather than tools, we provide results.

Feb 2025
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$40.0M
raised

We are making biology programmable to transform health and sustainability for the benefit of all.

Feb 2025
Series A

Founder Contacts

30,000+ verified contacts

E-Learning
$4.4M
raised

HowNow is a London-based EdTech startup that connects experts and learners by offering interactive video lessons.

Feb 2025
Series A

Founder Contacts

30,000+ verified contacts

Showing 226 to 250 of 498 companies

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