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Convertible Note Companies in London

Explore 47 convertible note startups based in London, United Kingdom. Access verified founder contact information and fundraising data.

Total Companies
47
Total Funding
$56.8M
Avg Funding
$2.6M
Industries
14

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AI Infrastructure

Vaire builds energy-efficient semiconductor technology that powers AI computing with ultra-low energy consumption.

Mar 2025
Convertible Note

Founder Contacts

41,000+ verified contacts

Biotechnology
$4.4M
raised

Autolomous is an biotechnology company engaged in manufacturing pragmatic digital solutions for cell and gene therapy.

Mar 2025
Convertible Note

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$8.2M
raised

We are a research-led applied AI team advancing the future operating systems of AI.

Mar 2025
Convertible Note

Founder Contacts

41,000+ verified contacts

Architecture
$3.6M
raised

RESI produces design packages for homeowners and property developers.

Mar 2023
Convertible Note

Founder Contacts

41,000+ verified contacts

Cyber Security
$660K
raised

UK based cyber-security platform

Feb 2023
Convertible Note

Founder Contacts

41,000+ verified contacts

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Blockchain
$2.7M
raised

High performance, green and scalable blockchain ,regulated on-chain assets, Digital Cash, Trusted Document and Data, Tokenization.

Feb 2022
Convertible Note

Founder Contacts

41,000+ verified contacts

Biotechnology
$2.1M
raised

Treos Bio, Inc. develops precision cancer immunotherapies tailored to patients' genetics.

Aug 2025
Convertible Note

Founder Contacts

41,000+ verified contacts

$13.3M
raised

Child Registry Ltd is a Financial Technology (Fintech) Company based in New York and London.

Dec 2021
Convertible Note

Founder Contacts

41,000+ verified contacts

Credit
$250K
raised

WiseAlpha is the UK's leading digital bond market giving investors access to the world of corporate bonds.

Dec 2025
Convertible Note

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)

Machine Medicine are building an operating system for neuromodulation and other forms of precision neurotherapeutics.

Dec 2024
Convertible Note

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Biotechnology
$7.4M
raised

Bactobio is a biotechnology company unlocking biodiversity for a greener and safer world.

Dec 2022
Convertible Note

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$372K
raised

IoT-enabled intelligence, transparency, and net-zero solutions for the beverage industry

Nov 2023
Convertible Note

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)

CloudNC develops advanced software that enables factories to autonomously manufacture precision parts.

Nov 2024
Convertible Note

Founder Contacts

41,000+ verified contacts

$716K
raised

Dizzie helps solve the problem of packaging waste in groceries with a reusable packaging system.

Nov 2023
Convertible Note

Founder Contacts

41,000+ verified contacts

Manufacturing
$8.1M
raised

elasticStage is the world’s first on-demand vinyl and CD platform enabling artists to sell physical records instantly with no upfront costs.

Jan 2026
Convertible Note

Founder Contacts

41,000+ verified contacts

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Artificial Intelligence (AI)
$2.0M
raised

QuantumLoopAI offers an AI-driven call-handling solution specifically designed for GP surgeries within the NHS.

Jan 2025
Convertible Note

Founder Contacts

41,000+ verified contacts

Apps
$531K
raised

Zzish is a leading gamified formative assessment tool used by 3.3m teachers and students across the globe.

Nov 2023
Convertible Note

Founder Contacts

41,000+ verified contacts

Big Data

EVRYTHNG develops an IoT platform for consumer product brands, articulating data with real-time insights for billions of things.

Jan 2022
Convertible Note

Founder Contacts

41,000+ verified contacts

Recreation
$277K
raised

Unplugged offers travel arranngements and off-grid, nature-immersed cabins designed for a digital detox.

Nov 2025
Convertible Note

Founder Contacts

41,000+ verified contacts

Automotive

Britishvolt focuses on delivering sustainable, low-carbon batteries on the roadmap to decarbonisation.

Nov 2022
Convertible Note

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Artificial Intelligence (AI)
$300K
raised

Brenpower is an industrial solution, utilizing IoT and AI technologies to reduce carbon emissions and enhance operational efficiency.

Oct 2022
Convertible Note

Founder Contacts

41,000+ verified contacts

Collaboration
$2.0M
raised

F6S is the world's largest platform for founders.

Oct 2023
Convertible Note

Founder Contacts

41,000+ verified contacts

Showing 26 to 47 of 47 companies

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