69 Best Health Tech Startups in London to Watch in 2025

The Definitive Seedtable Ranking of Health Tech Startups in London

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 174 start-ups with an aggregate funding of $4.5b. The average funding per company in this subset is $64.5m.

Last update to the database: Feb 18, 2025. See changelog.

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15

Funding Rounds

$140.4m

Money raised

Synthace is a software company based out of London, UK, building automation software that gives biologists the ability to control and analyze the performance of lab hardware.

3

Funding Rounds

$2.9m

Money raised

Chronomics is an AI-driven platform company that tracks epigenetics for personalized healthcare based in the United Kingdom.

Key people:

5

Funding Rounds

$28.9m

Money raised

Antidote.me closes the gap between clinical trials and patients

6

Funding Rounds

$190.5m

Money raised

Kuur Therapeutics focuses on the development of CAR-NKT cell therapies platform for applications in cancer treatment.

8

Funding Rounds

$101.4m

Money raised

Synthetic biology company that uses AI, DNA synthesis, and robotics to discover biological molecules.

Location:

Key people:

6

Funding Rounds

$86.6m

Money raised

Prokarium is a biopharmaceutical company focused on developing vaccination and cancer immunotherapy solutions based on synthetic biology.

Location:

Key people:

3

Funding Rounds

Clinithink is a Natural Language Processing AI for structuring medical chart notations

10

Funding Rounds

$187.8m

Money raised

Causaly is a biomedical research discovery tool founded in 2018 by Yiannis Kiachopoulos.

Location:

Key people:

8

Funding Rounds

$7.3m

Money raised

BioBeats is an artificial Intelligence company founded by David Plans, Nadeem Kassam and Davide Morelli.

Location:

Key people:

5

Funding Rounds

$82.8m

Money raised

Peptome is a London-based protein physics intelligence company founded in 2016 by Kamil Tamiola and Matt Heberling. It utilizes artificial intelligence for computers to process all information about protein data in the same efficient way that scientists do.

Location:

Key people:

5

Funding Rounds

$9.1m

Money raised

Puraffinity is a company using customized granular media (CGM) to remove pollutants and contaminants from water supplies.

Location:

Key people:

2

Funding Rounds

$57.0m

Money raised

Mytos is a company making an automated cell culture machine founded in 2016 by Ignacio Willats.

Location:

Key people:

4

Funding Rounds

$60.4m

Money raised

Company developing software that helps physicians communicate with their patients. Their main product Chain SMS is used by medical office staff to send text messages for a variety of communications such as appointment reminders or to remind patients to take prescriptions.

Location:

Key people:

4

Funding Rounds

$11.2m

Money raised

Post-Quantum is a company that is developing quantum-resistant encryption for protection against code-breaking quantum computers and quantum-resistant signature schemes for secure blockchain deployment.

1

Funding Rounds

$8.0m

Money raised

A company building a portable molecular tracker that offers instant feedback about physical performance and is starting with, but is not limited to, reporting individual cortisol and testosterone levels. It was founded in 2016 and is located in London, England.

Location:

Key people:

3

Funding Rounds

$249.7k

Money raised

A technology company that has developed emotion-detection artificial intelligence for wearables. It is located in London, England and was founded in 2017.

1

Funding Rounds

Biotechnology company founded in 2015 that develops and commercializes synthetic lipid compounds and cancer immunotherapy agents. iOx Therapeutics is an OSI spinout.

Location:

Key people:

1

Funding Rounds

$1.4m

Money raised

An artificial intelligence company using quantum computing to create molecular design solutions.

1

Funding Rounds

$22.0m

Money raised

Biomedical Artificial Intelligence company developing products for early cancer detection in the breast.

Location:

Key people:

1

Funding Rounds

$10.0m

Money raised

Doctify is a London-based company.

6

Funding Rounds

$133.6m

Money raised

Intelligent, distributed & reproducible big data & genomics analysis at scale. Zero onboarding. Zero config.

1

Funding Rounds

$600.0m

Money raised

Isomorphic Labs is an AI-driven drug discovery and development platform founded in 2021 by Demis Hassabis.

Key people:

2

Funding Rounds

$155.0m

Money raised

Digital health platform for predictive care and research.

3

Funding Rounds

$126.0m

Money raised

Health technology startup that creates personalized behavioral medicine programs

5

Funding Rounds

$127.6m

Money raised

Omniome is a San Diego-based company.

2

Funding Rounds

$155.0m

Money raised

Purespring Therapeutics is a gene therapy provider for kidney diseases founded in 2020.

Location:

1

Funding Rounds

$125.0m

Money raised

Touchlight is a London-based biotechnology company founded in 2008 which focuses on DNA technology.

3

Funding Rounds

$45.5m

Money raised

A company offering a medication management platform that gives insight into patient behavior.

2

Funding Rounds

$75.0m

Money raised

The #1 digital clinic for tobacco, vaping, alcohol and opioid addictions.

Key people:

4

Funding Rounds

$8.4m

Money raised

Log my Care is a digital platform for social care providers founded in 2017 by Sam Hussain.

Location:

Key people:

4

Funding Rounds

$62.6m

Money raised

Peppy is a digital health platform for underserved areas people founded in 2018 by Evan Harris, Maximilian Trotter-Landry and Mridula Pore.

3

Funding Rounds

$26.0m

Money raised

SilverCloud Health is a Dublin-based company offering an online health and wellness platform enabling healthcare organisations and professionals to offer a broad range of engaging interactive healthcare products.

Location:

Key people:

2

Funding Rounds

$33.0m

Money raised

Oviva is digitising the treatment of type 2 diabetes and obesity through our unique behaviour change platform.

Location:

Key people:

5

Funding Rounds

$162.0m

Money raised

A clinical cancer genomics company using liquid biopsy in cancer patients

1

Funding Rounds

$34.0m

Money raised

Senda.bio is a San Diego-based biotechnology company developing drug development research and technologies.

1

Funding Rounds

$17.3m

Money raised

VirionHealth is a biotechnology company

3

Funding Rounds

$21.0m

Money raised

Digital hospital of the future, providing elective medical procedures with a fully-digitised, personal and patient-first experience.

Location:

Key people:

1

Funding Rounds

$626.0k

Money raised

Sime is a company founded in 2018.

4

Funding Rounds

$38.5m

Money raised

Tropic Biosciences is a genome editing company founded in 2016 by Gilad Gershon.

Location:

Key people:

2

Funding Rounds

$40.0m

Money raised

Developer of cutting-edge DNA techniques to monitor biodiversity.

Location:

Key people:

3

Funding Rounds

$41.0m

Money raised

We're a next gen CRO running end-to-end clinical trials for health and biotech pioneers. From trial design to recruitment and delivery, we accelerate trials.

Location:

Key people:

1

Funding Rounds

$3.9m

Money raised

Patchwork is a London-based company founded in 2016.

1

Funding Rounds

$10.0m

Money raised

Sixfold Bioscience is a biotechnology firm focused on advancing RNA therapies founded in 2017 by Anna Perdrix Rosell, Zuzanna Brzosko and George Foot.

6

Funding Rounds

$474.7m

Money raised

Cell therapy firm specializing in developing treatments using advanced cellular technology.

1

Funding Rounds

$500.0k

Money raised

Syrona Women is a company with a platform for digital healthcare directed at women that can track and screen for medical situations such as endrometriosis, fertility, PCOS, etc.

Location:

Key people:

3

Funding Rounds

$115.0m

Money raised

Platform for AI-driven drug discovery in clinical-stage development.

Key people:

3

Funding Rounds

$45.0m

Money raised

Notpla is a plastic-free packaging solutions provider founded in 2014 by Pierre Paslier.

Location:

Key people:

1

Funding Rounds

$1.4m

Money raised

Locum's Nest is a London-based company founded in 2015 by Ahmed Shahrabani.

Location:

Key people:

3

Funding Rounds

$40.3m

Money raised

AI-designed enzyme producer to transform plastic waste into valuable resources.

Location:

Key people:

2

Funding Rounds

$80.0m

Money raised

Basecamp Research is an AI-driven protein sequences and biological systems developer founded in 2019 by Glen Gowers.

Location:

Key people:

6

Funding Rounds

$29.7m

Money raised

Actimed Therapeutics Ltd is a cachexia Treatments founded in 2016.

1

Funding Rounds

$45.5m

Money raised

Silence Therapeutics is a London-based company founded in 1999.

Location:

Key people:

2

Funding Rounds

$12.0m

Money raised

DrDoctor is a London-based company founded in 2012.

4

Funding Rounds

$148.0m

Money raised

e-Therapeutics is an In-Silico Drug Discovery founded in 2003.

2

Funding Rounds

$37.9m

Money raised

A company offering technologies to improve in-home care for the elderly.

1

Funding Rounds

$34.2m

Money raised

Avacta Group PLC is a drug Development Platform, Engineered Antibodies founded in 2012.

1

Funding Rounds

$2.0m

Money raised

HealthUnlocked is a social networking service for health founded in 2010 by Jorge Armanet M..

1

Funding Rounds

A pharmaceutical company specializing in drug candidates used for in out-patient and hospital-based sedation

2

Funding Rounds

$15.2m

Money raised

Personalized cancer treatment company

6

Funding Rounds

$130.0m

Money raised

Lightship Inc. is a company founded in 2018 by Jaethan Reichel.

2

Funding Rounds

$30.0m

Money raised

Speedx Pty Ltd is a company founded in 2009 by Alison Todd.

1

Funding Rounds

$3.9m

Money raised

We’re here to inspire an information revolution in rare disease. Our contribution will be to build a knowledge bank for the lived experience of rare disease, and it will catalog every aspect of life with a rare condition: specifically, any of the 7000+ rare conditions. Incredibly ambitious? You bet.

$480.0k

Money raised

OnCare is a company offering software for improving care management founded in 2017 by Kenan Altunis.

Location:

Key people:

3

Funding Rounds

$23.0m

Money raised

Gynecological health company creating products and services for vaginal treatment.

1

Funding Rounds

$6.0m

Money raised

Developer of virtual healthcare platform designed to deliver healthcare that maintains people in good health. The company's platform facilitates general practices to virtually manage patients with long-term conditions such as hypertension, diabetes, asthma, COPD, depression, and anxiety, enabling patients to reach their personal health milestones.

Location:

Key people:

1

Funding Rounds

$8.2m

Money raised

Platform helping the food sector reduce its carbon footprint.

1

Funding Rounds

Nell Natural Elements is an artificial Intelligence company founded in 2017 by Geoff Webb.

7

Funding Rounds

$117.3m

Money raised

Developer of immunoglobulin E (IgE) antibodies to treat cancer.

Location:

2

Funding Rounds

$4.3m

Money raised

Producing molecularly identical dairy. Same products no animals.

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