UK Seed Funding Rounds
Seed financing for UK-based startups, from the products they are developing to the investors backing them.
- Rounds
- 106 All time
- Disclosed funding
- $1.9B 96 disclosed amounts
- Median round
- $5M Of disclosed amounts
| Company | Amount | Round | Sector | Country | Investors | Announced |
|---|---|---|---|---|---|---|
| R RevnuCompany profile AI agents that run growth marketing, advertising and search optimization for software companies. AI agents that run growth marketing, advertising and search optimization for software companies. | $3M | Seed | Enterprise software | United Kingdom | Investors | |
| ZA Zenithon AICompany profile Zenithon builds physics-grounded machine-learning models that help engineering teams simulate and optimize complex systems in fusion, aerospace and semiconductor development. Zenithon builds physics-grounded machine-learning models that help engineering teams simulate and optimize complex systems in fusion, aerospace and semiconductor development. | $10M | Seed | AI | United Kingdom | Investors | |
| S StandardXCompany profile StandardX develops compact particle accelerators and isotope-refinery technology to produce isotopes for medical, industrial and energy applications. StandardX develops compact particle accelerators and isotope-refinery technology to produce isotopes for medical, industrial and energy applications. | £10M | Seed | Industrial tech | United Kingdom | Investors | |
| ME Metris EnergyCompany profile An operating platform for renewable-energy owners and operators that unifies asset data and workflows for portfolio monitoring, revenue operations, reporting and maintenance. An operating platform for renewable-energy owners and operators that unifies asset data and workflows for portfolio monitoring, revenue operations, reporting and maintenance. | $5M | Seed | Climate tech | United Kingdom | Investors | |
| M ManticCompany profile An AI forecasting company that produces probability-based outlooks on global events to help business and government decision-makers anticipate risks and opportunities. An AI forecasting company that produces probability-based outlooks on global events to help business and government decision-makers anticipate risks and opportunities. | $25M | Seed | AI | United Kingdom | Investors | |
| ER Eterna RegenerativesCompany profile Eterna Regeneratives develops keratin-based biomaterials that guide mineral growth to repair enamel and, in a separate application, support bone regeneration. Its research-led platform is moving from proof of concept toward dental and orthopaedic products. Eterna Regeneratives develops keratin-based biomaterials that guide mineral growth to repair enamel and, in a separate application, support bone regeneration. Its research-led platform is moving from proof of concept toward dental and orthopaedic products. | $4M | Seed | Healthtech | United Kingdom | Investors | |
| E ExpanseCompany profile Predictive infrastructure software that forecasts GPU, memory, runtime and failure risk before AI or HPC jobs run, helping teams use existing clusters more efficiently. Predictive infrastructure software that forecasts GPU, memory, runtime and failure risk before AI or HPC jobs run, helping teams use existing clusters more efficiently. | €4.5M | Seed | AI | United Kingdom | Investors | |
| AL Axo LongevityCompany profile Axo Longevity is a preventive-health membership that combines recurring laboratory testing with personalised insights and an AI health coach. Axo Longevity is a preventive-health membership that combines recurring laboratory testing with personalised insights and an AI health coach. | $5M | Seed | Healthtech | United Kingdom | Investors | |
| B BolterCompany profile Bolter is an AI-native messaging platform where operators work with teammates and persistent AI agents to automate multi-step business processes through plain-language instructions and reusable workflows. Bolter is an AI-native messaging platform where operators work with teammates and persistent AI agents to automate multi-step business processes through plain-language instructions and reusable workflows. | $10M | Seed | AI | United Kingdom | Investors | |
| M MCatalysisCompany profile MCatalysis develops modular microwave-driven catalytic refining systems that convert distributed hydrocarbon feedstocks, including waste carbon, into drop-in liquid fuels and chemical products for industrial buyers. MCatalysis develops modular microwave-driven catalytic refining systems that convert distributed hydrocarbon feedstocks, including waste carbon, into drop-in liquid fuels and chemical products for industrial buyers. | $5M | Seed | Climate tech | United Kingdom | Investors |
Active investors in this selection
All investors →Ranked by rounds participated in · All time
- 1Northern Gritstone
Silvia Bio, Pixel-Flo, Imperagen
4rounds1led - 2firstminute capital
StandardX, Intropy, Frontier Health
4rounds0led - 3Blackfinch Ventures
Metris Energy, Noggin HQ, Quantcore
4rounds2led - 4Octopus Ventures
Metris Energy, geoSurge, Handshake
4rounds1led - 5Innovate UK
Stride, Ki 13, QuberTech
3rounds0led
Latest digests
Archive →Explore published rounds while the next edition is being prepared.