69 Best Biotech Startups in London to Watch in 2025

The Definitive Seedtable Ranking of Biotech 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 135 start-ups with an aggregate funding of $4.5b. The average funding per company in this subset is $65.3m.

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:

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:

10

Funding Rounds

$187.8m

Money raised

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

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:

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:

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.

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.

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.

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

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

$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:

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:

4

Funding Rounds

$148.0m

Money raised

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

1

Funding Rounds

$34.2m

Money raised

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

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

2

Funding Rounds

$30.0m

Money raised

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

3

Funding Rounds

$23.0m

Money raised

Gynecological health company creating products and services for vaginal treatment.

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.

5

Funding Rounds

$178.8m

Money raised

Ori Biotech is a cell & Gene Therapy Manufacturing founded in 2015.

2

Funding Rounds

$12.4m

Money raised

Shellworks is on a mission to make plastic waste a thing of the past by creating truly compostable packaging solutions.

2

Funding Rounds

$1.1m

Money raised

Digitstain is a London-based medical device company developing a digital solution for cancer grading and prognosis, capable of being integrated in existing clinical processes.

Location:

Key people:

1

Funding Rounds

Tecrea is a biotech company in the United Kingdom founded in 2012 by Fernando Velez.

2

Funding Rounds

$13.0m

Money raised

Innovative therapy provider for cancer and inflammatory disease targeting fibroblast-immune interactions.

3

Funding Rounds

$256.0m

Money raised

Antibody-Drug Conjugate specialist creating treatments for tough-to-treat cancers.

2

Funding Rounds

$20.0m

Money raised

Snoring Prevention Device

3

Funding Rounds

$13.7m

Money raised

Modern Synthesis is a biomaterials producer for textile industry founded in 2019 by Ben Reeve.

Location:

Key people:

1

Funding Rounds

$29.0m

Money raised

Renalytix is a developer of artificial intelligence (AI) enabled clinical diagnostic solutions for kidney disease.

Key people:

1

Funding Rounds

$2.2m

Money raised

Developer of bio-photonics and artificial intelligence technology designed to stratify patients for clinical trials. The company's technology uses a non-invasive, portable, inexpensive system to screen for Alzheimer's and other neurodegenerative diseases.

Location:

Key people:

3

Funding Rounds

$28.8m

Money raised

Fabricnano is a cell-free chemical manufacturer to produce bio-based alternatives founded in 2019.

1

Funding Rounds

$4.8m

Money raised

Baseimmune is an AI vaccine algorithm developer founded in 2019.

1

Funding Rounds

$3.5m

Money raised

Clustermarket is an online marketplace for science and technology founded in 2016 by Johannes Solzbach.

Location:

Key people:

2

Funding Rounds

$7.8m

Money raised

Veratrak is a blockchain company founded in 2018 by Jason Lacombe.

3

Funding Rounds

$28.4m

Money raised

Cultivated fat producer for the meat alternatives industry.

3

Funding Rounds

$1.1m

Money raised

Flow Bio is a company that develops real-time hydration sensor that are designed to understand human bodies at molecular level.

1

Funding Rounds

$8.0m

Money raised

Treos Bio is a cancer Vaccine Technology founded in 2013 by John Hautman.

Key people:

1

Funding Rounds

$130.0k

Money raised

LiliumX is a we discover new combinations for bispecific antibodies founded in 2021 by Irsyad Khairil.

2

Funding Rounds

$100.0m

Money raised

CHARM Therapeutics is an AI Protein Folding Drug Discovery founded in 2021 by Lakshyaditya Aithani.

1

Funding Rounds

$675.0k

Money raised

Mendelian Ltd is a London-based diagnostics company developing rare disease diagnostics.

2

Funding Rounds

$1.3m

Money raised

Small Pharma is a London-based pharmaceutical company researching applications of DMT and ketamine in psychedelic-assisted psychotherapy to help treat conditions like clinical depression.

1

Funding Rounds

$55.0m

Money raised

ReViral is a biotechnology firm developing antiviral treatments for patients founded in 2011.

1

Funding Rounds

$1.9m

Money raised

Exogene is a biotechnology company researching cell therapies for cancer treatment.

1

Funding Rounds

Multiomic Health is building a precision therapeutics discovery platform for metabolic syndrome diseases

2

Funding Rounds

$21.0m

Money raised

Atlas Biomed Group is a company founded in 2014 by Andrey Perfilyev.

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