---
title: "154 Series A Investors in the UK (Nov 2026): Top 10 Ranked"
last_updated: "2026-11-09"
rows: "154"
free_rows: "25"
source: "SEC Form D filings and our own research"
canonical: "https://theinvestordatabase.com/lists/series-a-investors-uk/"
---

# 154 Series A investors in the UK

We list 154 Series A investors in the UK as of November 2026: 7 have an SEC filing on file and 147 were checked on the firm's own website or an official register, and the list was last checked on 9 Nov 2026. The cities with the most head offices on this list are London (95), Edinburgh (4) and Cambridge (4).

- 154 investors
- 70 with a fund filing or dated deal in the last 12 months
- 979 named decision-makers on file

## First 25 of 154 Series A investors in the UK

| Investor | Type | HQ | Stages (our research) | Focus (our research) | Latest fund or deal | Fund size | Checked | Profile |
|---|---|---|---|---|---|---|---|---|
| IW Capital | SEIS/EIS fund | London, United Kingdom | Series A | Healthtech, AI, SaaS, Fintech | New deal, Oct 2026 | £185M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/iw-capital/ |
| Seraphim Space | VC firm | London, United Kingdom | Seed, Series A, Growth | Space, Mobility, Deep Tech, Defense Tech | New fund, Oct 2026 | $1.0B (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/seraphim-space/ |
| PXN Ventures | Fund manager | Manchester, United Kingdom | Pre-seed, Seed, Series A, Growth | Generalist, SaaS, Deep Tech, Healthtech | Portfolio news, Nov 2026 | £760M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/pxn-ventures/ |
| BGF | VC firm | United Kingdom | Seed, Series A, Series B, Growth | Healthtech, Edtech, Developer Tools, Mobility | Portfolio news, Oct 2026 | £3.0B (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/bgf/ |
| Gresham House Ventures | VC firm | London, United Kingdom | Series A, Growth | AI, Healthtech, Marketing Tech, Fintech | New deal, Sep 2026 | £200M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/gresham-house-ventures/ |
| Mercia Asset Management | Fund manager | Henley-in-Arden, United Kingdom | Seed, Series A, Growth | Healthtech, Future of Work, AI, SaaS | Portfolio news, Oct 2026 | £400M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/mercia/ |
| The FSE Group | Fund manager | Fleet, United Kingdom | Seed, Series A, Growth | Generalist, Climate Tech, Healthtech, SaaS | Portfolio news, Sep 2026 | £395M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/the-fse-group/ |
| Atempo Growth | Venture debt | London, United Kingdom | Series A, Series B, Growth, Late stage | SaaS, Fintech, B2B | Portfolio news, Aug 2026 | €800M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/atempo-growth/ |
| Northern Powerhouse Investment Fund II | Government or university fund | United Kingdom | Seed, Series A, Growth | Generalist | Portfolio news, Oct 2026 | £660M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/northern-powerhouse-investment-fund-ii/ |
| Fuel Ventures | SEIS/EIS fund | London, United Kingdom | Pre-seed, Seed, Series A | Fintech, SaaS, Marketplace, AI | New deal, Oct 2026 | £280M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/fuel-ventures/ |
| ACF Investors | VC firm | Sheffield, United Kingdom | Seed, Series A | Fintech, Generalist, Climate Tech, Consumer | Portfolio news, Oct 2026 | £100M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/acf-investors/ |
| Parkwalk Advisors | SEIS/EIS fund | London, United Kingdom | Seed, Series A, Series B, Growth | Healthtech, AI, Industrial Tech, Energy | New fund, Sep 2026 | £500M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/parkwalk/ |
| Pembroke VCT | VC firm | London, United Kingdom | Seed, Series A, Growth | AI, Healthtech, Consumer, SaaS | Portfolio news, Sep 2026 | £235M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/pembroke-vct/ |
| Notion Capital | VC firm | London, United Kingdom | Seed, Series A | SaaS, B2B, AI, Fintech | New deal, Oct 2026 | $2.0B (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/notion-capital/ |
| River Capital | Fund manager | Liverpool, United Kingdom | Seed, Series A, Growth | Ecommerce, Generalist, AI, Consumer | New deal, Oct 2026 | £100M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/river-capital/ |
| Salica Investments | Fund manager | London, United Kingdom | Seed, Series A, Growth | Fintech, AI, Healthtech, Climate Tech | Portfolio news, Oct 2026 | £760M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/salica/ |
| AI Seed | VC firm | London, United Kingdom | Pre-seed, Seed, Series A | AI, SaaS | New fund, Oct 2026 | $50M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/ai-seed/ |
| Bayes Entrepreneurship Fund | Government or university fund | London, United Kingdom | Seed, Series A | AI, Healthtech, Fintech, Developer Tools | New deal, Oct 2026 | £15M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/cass-entrepreneurship-fund/ |
| Balderton Capital | VC firm | London, United Kingdom | Seed, Series A, Series B, Growth | Healthtech, AI, Fintech, Developer Tools | Portfolio news, Oct 2026 | $5.7B (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/balderton-capital/ |
| First Imagine! | VC firm | London, United Kingdom | Series A | AI, Energy, Industrial Tech, Climate Tech | New deal, Oct 2026 |  | 2026-11-05 | https://theinvestordatabase.com/investors/first-imagine-ventures/ |
| Mosaic Ventures | VC firm | London, United Kingdom | Seed, Series A | AI, Fintech, Crypto and Web3, SaaS | New deal, Sep 2026 | $75M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/mosaic-ventures/ |
| Brighteye Ventures | VC firm | London, United Kingdom | Pre-seed, Seed, Series A | AI, Developer Tools, Edtech, Future of Work | New fund, Sep 2026 | $245M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/brighteye-ventures/ |
| Outlier Ventures | VC firm | United Kingdom | Pre-seed, Seed, Series A, Growth | AI, Biotech, Robotics, Fintech | New deal, Oct 2026 | $500M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/outlier-ventures/ |
| Future Planet Capital Regional (formerly Midven) | Fund manager | Birmingham, United Kingdom | Seed, Series A | Generalist, SaaS, Hardware, Medtech | Portfolio news, Jul 2026 | £110M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/future-planet-capital-regional-formerly-midven/ |
| Archangels | Angel network | Edinburgh, United Kingdom | Pre-seed, Seed, Series A, Growth | Biotech, Media, Deep Tech, Healthtech | Portfolio news, Nov 2026 | £10M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/archangels/ |

You are seeing 25 of 154. The full list adds 129 more investors and 979 named decision-makers.

Get all 154 investors and 979 named contacts, $49, one-time: https://theinvestordatabase.com/buy/list/series-a-investors-uk
This page: https://theinvestordatabase.com/lists/series-a-investors-uk/

## Method and limits
- Source: 7 of the 154 rows carry an SEC filing (Form D or Form ADV). All 154 have a website we checked. Filing date and fund size are SEC data where a filing exists. Stage, sector and check size are our research.
- Inclusion rule: Organizations that back startups. Individuals, buyout funds and firms we found to be inactive are left out. Stage: the firm states that it invests at Series A.
- Order: Activity score out of 100: recency of the latest fund filing or dated deal (40: full marks within 3 months, then stepping down at 6, 12 and 24 months), stage focus (15: all of it when Series A is the only stage the firm states, split evenly when it states more), stated focus on the UK (15: full marks when the firm names the UK as where it invests, half when it says Europe or global), size of the fund on file on a log scale (20) and completeness of the public record (10). Stage and regional focus are our research, not an SEC figure. It is a measure of activity and fit, not of quality or returns.
- Fill rates: Of 154 rows: stage 154, sector 154, fund size 74, website 154. In the paid file: named decision-makers on 147 rows, firm email on 84, LinkedIn page on 126, check size on 89.

## Questions
### How many Series A investors in the UK are there?
We list 154 as of November 2026. 70 of the 154 have a fund filing or a dated deal in the last 12 months. The cities with the most are London (95), Edinburgh (4) and Cambridge (4).

### Which sectors do Series A investors in the UK back most?
On this list: SaaS and B2B software (96), AI (89), healthtech and digital health (81) and fintech (71). Sector is our research and a firm can carry more than one.

### Which Series A investors in the UK raised a new fund in the last 12 months?
7 of the 154 have a fund filing dated in the last 12 months. The most recent on this list are AI Seed (Oct 2026), Brighteye Ventures (Sep 2026) and Parkwalk Advisors (Sep 2026).

### Where does the data on Series A investors in the UK come from and how often is it updated?
7 of the 154 rows have an SEC filing on file (Form D or Form ADV) and 147 were checked on the firm's own website or an official register. Filing date and fund size come from the filing. Stage, sector and check size are our research. Rows on this list were last checked on 9 Nov 2026 at the latest. The whole file is re-verified twice a year.

### Can I download the list of Series A investors in the UK as a spreadsheet?
Yes. The file holds all 154 rows in Excel and CSV, with 979 named decision-makers and 84 firm emails, for $49 one-time. 25 rows are free on this page.