All Rankings

Top Seed-Stage Companies in the UK 2026

Private companies headquartered in the United Kingdom whose latest recorded round was seed or pre-seed, ranked by disclosed lifetime funding.

Known total funding for 100 of 100 ranked companies: $2.7B.

Showing top 100 matching companies · Ranked by total funding raised

Use company data through the API.
Example request
curl "https://indexed.vc/api/v1/companies?countries=United+Kingdom&operatingStatus=active&sort=total_funding_raised&order=desc&limit=100" -H "X-API-Key: YOUR_API_KEY"

The API has no funding stage filter, so this includes every stage, not only Seed or Pre-Seed.

The API has no company type filter, so public companies can appear; this list counts private companies only.

The API cannot leave out companies whose latest round is a grant; this list does.

Data from Indexed.vcUpdated

Methodology: up to 100 active companies matching this list's filters are ordered by disclosed total funding in USD. Companies whose latest round is one of: Grant are excluded. Totals include recorded grants and other qualifying funding, not just equity. Open a company profile for its funding summary and available detail. How this data is built.

26
Trisk Bio

Custom AAV manufacturing company offering scalable preclinical manufacturing processes for gene t...

London, United Kingdom1–10Biotech
SeedTotal funding$16.6MDec 2021
27
Five ID

Palm-based biometric payment technology

London, United Kingdom1–10Cybersecurity, Fintech
SeedTotal funding$16.5MMay 2026
28
Gardin

Builds optical sensors and an AI platform measuring plant photosynthesis in real time, enabling g...

London, United Kingdom11–50Artificial Intelligence, Data & Analytics
SeedTotal funding$16.5MMay 2025
29
Parfin

Parfin provides digital asset infrastructure for banks, combining custody with multi-account mana...

London, United Kingdom51–200Crypto & Web3, Fintech
SeedTotal funding$16.3M
30
Shift Bioscience

Biotech company using cell biology and machine learning to reverse aging through cell rejuvenatio...

Cambridge, United Kingdom1–10Biotech, Healthcare
SeedTotal funding$16.0MOct 2024
31
Delli

DELLI is a digital marketplace and selling platform where shoppers discover independent food and ...

London, United Kingdom11–50E-Commerce
SeedTotal funding$15.7MSep 2024
32
Augur

Augur turns existing camera infrastructure into real-time operational intelligence for threat det...

London, United Kingdom1–10Defense Tech, Artificial Intelligence
SeedTotal funding$15.0MMar 2026
33
Haiqu

Quantum software startup building a hardware-aware operating system to reduce quantum computation...

London, United Kingdom11–50Developer Tools
SeedTotal funding$15.0MJan 2026
34
Infinity

Infinity is an AI-powered call tracking and conversation analytics platform that helps marketing,...

Reigate, United Kingdom51–200Artificial Intelligence, SaaS
SeedTotal funding$15.0MJul 2026
35
Electric Twin

Electric Twin builds synthetic audiences from customer data, enabling teams to test ideas and get...

London, United Kingdom11–50Artificial Intelligence, Marketing Tech
SeedTotal funding$14.0MFeb 2026
36
Matta

Matta creates industrial AI for factory sentience, developing manufacturing foundation models and...

London, United Kingdom11–50Artificial Intelligence
SeedTotal funding$14.0MDec 2024
37
Concretene

Concretene develops graphene-based admixtures for cementitious materials, helping construction us...

Manchester, United Kingdom11–50Climate Tech
SeedTotal funding$13.9MOct 2024
38
BioOrbit

Developing a microgravity protein crystallization platform for next-gen space biologics.

London, United Kingdom11–50Biotech, Space Tech
SeedTotal funding$13.4MApr 2026
39
Studeo

Studeo gives learners a one-to-one AI avatar tutor for STEM problem solving, with custom feedback...

LONDON, United Kingdom1–10EdTech, Education
SeedTotal funding$13.2MJan 2026
40
Agemo

AI software development company building reliable AI systems and makers of CodeWords, a no-code A...

London, United Kingdom1–10Artificial Intelligence, Developer Tools
SeedTotal funding$13.0MMay 2026
41
Expressionedits

ExpressionEdits is a biotechnology company using its AI-driven Genetic Syntax Engine to redesign ...

Cambridge, United Kingdom11–50Artificial Intelligence, Biotech
SeedTotal funding$13.0MMay 2024
42
Procure AI

Procure AI delivers an AI-native procurement automation platform.

London, United Kingdom11–50Artificial Intelligence, Supply Chain
SeedTotal funding$13.0MNov 2025
43
SpAItial

AI company building Spatial Foundation Models to generate and reason about the appearance and phy...

London, United Kingdom1–10Artificial Intelligence, Deep Tech
SeedTotal funding$13.0MMay 2025
44
Thaleron

Low-cost, efficient mechanical energy storage technology

Woking, United Kingdom1–10Climate Tech
SeedTotal funding$12.7MDec 2023
45
AKT London

Natural, plastic-free whole body deodorant brand made in the United Kingdom.

London, United Kingdom11–50E-Commerce, Healthcare
Pre-seedTotal funding$12.5MJan 2020
46
Arondite

British defence tech company building AI and autonomous systems technology for real-world militar...

London, United Kingdom11–50Artificial Intelligence, Defense Tech
SeedTotal funding$12.3MMay 2025
47
geoSurge

GEO platform for tracking how AI models talk about your brand

London, United Kingdom11–50Artificial Intelligence, SaaS
SeedTotal funding$12.0MJul 2026
48
IDlayr

Digital identity enablement

London, United Kingdom11–50Cybersecurity, Fintech
SeedTotal funding$12.0MFeb 2021
49
Scripta Therapeutics

Modulating transcription factor activity to restore health

Oxford, United Kingdom11–50Artificial Intelligence, Biotech
SeedTotal funding$12.0MNov 2025
50
Wonder Studios

AI-native creative studio that produces films, music videos, and branded content by uniting emerg...

London, United Kingdom11–50Artificial Intelligence
SeedTotal funding$12.0MOct 2025