--- title: "54 Series B Investors in the UK (Nov 2026): Top 10 Ranked" last_updated: "2026-11-09" rows: "54" free_rows: "25" source: "SEC Form D filings and our own research" canonical: "https://theinvestordatabase.com/lists/series-b-investors-uk/" --- # 54 Series B investors in the UK We list 54 Series B investors in the UK as of November 2026: 2 have an SEC filing on file and 52 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 (44), Oxford (1) and Edinburgh (1). - 54 investors - 22 with a fund filing or dated deal in the last 12 months - 354 named decision-makers on file ## First 25 of 54 Series B investors in the UK | Investor | Type | HQ | Stages (our research) | Focus (our research) | Latest fund or deal | Fund size | Checked | Profile | |---|---|---|---|---|---|---|---|---| | 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/ | | 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/ | | 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/ | | Claret Capital Partners | Venture debt | London, United Kingdom | Series B, Growth, Late stage | Healthtech, Biotech, Climate Tech, SaaS | New deal, Oct 2026 | €575M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/claret-capital-partners/ | | 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/ | | Valia Ventures | VC firm | London, United Kingdom | Pre-seed, Seed, Series A, Series B, Growth | AI, Healthtech, Generalist, Energy | Portfolio news, Aug 2026 | $50M (SEC Form D, 2022) | 2026-11-05 | https://theinvestordatabase.com/investors/valia-ventures/ | | Systemiq Capital | VC firm | London, United Kingdom | Seed, Series A, Series B | Energy, AI, Climate Tech, Mobility | Portfolio news, Sep 2026 | | 2026-11-05 | https://theinvestordatabase.com/investors/systemiq-capital/ | | AVP | VC firm | London, United Kingdom | Series A, Series B, Growth, Late stage | Fintech, SaaS, Insurtech, Healthtech | Portfolio news, Oct 2026 | | 2026-11-04 | https://theinvestordatabase.com/investors/avp/ | | White Star Capital | VC firm | London, United Kingdom | Seed, Series A, Series B | AI, Fintech, Crypto and Web3, Consumer | New fund, Aug 2026 | $250M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/white-star-capital/ | | Entrée Capital | VC firm | London, United Kingdom | Pre-seed, Seed, Series A, Series B, Growth | AI, Fintech, Deep Tech, SaaS | New deal, Feb 2026 | $1.5B (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/entree-capital/ | | Novastar Ventures | VC firm | London, United Kingdom | Seed, Series A, Series B, Growth | Climate Tech, Energy, Logistics, Agritech | New fund, May 2026 | $350M (own site) | 2026-11-05 | https://theinvestordatabase.com/investors/novastar-ventures/ | | DN Capital | VC firm | London, United Kingdom | Seed, Series A, Series B, Growth | AI, SaaS, Fintech, Consumer | New deal, Jul 2026 | $866M (SEC Form ADV) | 2026-11-04 | https://theinvestordatabase.com/investors/dn-capital/ | | ETF Partners | VC firm | London, United Kingdom | Series B, Growth | Fintech, Climate Tech, Quantum, Energy | New deal, Oct 2026 | | 2026-11-04 | https://theinvestordatabase.com/investors/etf-partners/ | | Molten Ventures | VC firm | London, United Kingdom | Series A, Series B, Growth | Fintech, AI, Healthtech, Climate Tech | New deal, Nov 2026 | | 2026-11-04 | https://theinvestordatabase.com/investors/molten-ventures/ | | Oxford Science Enterprises | VC firm | Oxford, United Kingdom | Pre-seed, Seed, Series A, Series B, Growth | Healthtech, AI, Biotech, Deep Tech | Portfolio news, Mar 2026 | £1.4B (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/oxford-science-enterprises/ | | SV Health Investors | VC firm | London, United Kingdom | Seed, Series A, Series B, Growth | Healthtech, Biotech, Medtech | New fund, May 2025 | $4.0B (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/sv-health-investors/ | | Index Ventures | VC firm | London, United Kingdom | Seed, Series A, Series B, Growth, Late stage | AI, Fintech, Healthtech, SaaS | New deal, Oct 2026 | | 2026-11-04 | https://theinvestordatabase.com/investors/index-ventures/ | | Medicxi | VC firm | London, United Kingdom | Pre-seed, Seed, Series A, Series B, Late stage | Healthtech, Biotech | New fund, Nov 2025 | €500M (own site) | 2026-11-05 | https://theinvestordatabase.com/investors/medicxi/ | | West Hill Capital | SEIS/EIS fund | London, United Kingdom | Seed, Series A, Series B, Growth | Fintech, AI, Healthtech, Deep Tech | Portfolio news, Feb 2025 | £600M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/west-hill-capital/ | | TLCOM | VC firm | London, United Kingdom | Pre-seed, Seed, Series A, Series B, Growth | Fintech, Ecommerce, Agritech, Edtech | Portfolio news, Oct 2026 | | 2026-11-05 | https://theinvestordatabase.com/investors/tlcom/ | | Scottish National Investment Bank | Government or university fund | Edinburgh, United Kingdom | Series A, Series B, Growth | Climate Tech, Energy, Fintech, Space | | £1.2B (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/scottish-national-investment-bank/ | | CircleRock Capital | Angel network | London, United Kingdom | Seed, Series A, Series B | AI, Fintech, Edtech, Generalist | Portfolio news, Nov 2025 | | 2026-11-04 | https://theinvestordatabase.com/investors/circlerock-capital/ | | Columbia Lake Partners | Venture debt | London, United Kingdom | Series A, Series B, Growth | AI, Media, Marketing Tech, SaaS | | $800M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/columbia-lake-partners/ | | Northzone | VC firm | London, United Kingdom | Seed, Series A, Series B, Growth | AI, Fintech, Consumer, Healthtech | | $3.1B (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/northzone/ | | Octopus Ventures | VC firm | London, United Kingdom | Pre-seed, Seed, Series A, Series B | Fintech, Healthtech, Biotech, Climate Tech | New deal, Feb 2026 | | 2026-11-04 | https://theinvestordatabase.com/investors/octopus-ventures/ | You are seeing 25 of 54. The full list adds 29 more investors and 354 named decision-makers. Get all 54 investors and 354 named contacts, $49, one-time: https://theinvestordatabase.com/buy/list/series-b-investors-uk This page: https://theinvestordatabase.com/lists/series-b-investors-uk/ ## Method and limits - Source: 2 of the 54 rows carry an SEC filing (Form D or Form ADV). All 54 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 B. - 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 B 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 54 rows: stage 54, sector 54, fund size 27, website 54. In the paid file: named decision-makers on 53 rows, firm email on 24, LinkedIn page on 46, check size on 24. ## Questions ### How many Series B investors in the UK are there? We list 54 as of November 2026. 22 of the 54 have a fund filing or a dated deal in the last 12 months. The cities with the most are London (44), Oxford (1) and Edinburgh (1). ### Which sectors do Series B investors in the UK back most? On this list: SaaS and B2B software (36), healthtech and digital health (32), AI (30) and fintech (27). Sector is our research and a firm can carry more than one. ### Which Series B investors in the UK raised a new fund in the last 12 months? 3 of the 54 have a fund filing dated in the last 12 months. The most recent on this list are Parkwalk Advisors (Sep 2026), White Star Capital (Aug 2026) and Medicxi (Nov 2025). ### Where does the data on Series B investors in the UK come from and how often is it updated? 2 of the 54 rows have an SEC filing on file (Form D or Form ADV) and 52 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 B investors in the UK as a spreadsheet? Yes. The file holds all 54 rows in Excel and CSV, with 354 named decision-makers and 24 firm emails, for $49 one-time. 25 rows are free on this page.