# Vector funding: rounds and investors > Vector has raised $91M across 3 rounds since 2025. Investors include Alumni Ventures, Lightspeed Venture Partners and Y Combinator. Every round with its source. Source: https://millionrounds.com/company/vector (Millionrounds; every figure on the page links to its filing or article) United Kingdom · [Series A startup](https://millionrounds.com/companies) # Who invested in *Vector* 3 rounds we have observed, with the 12 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it. Advertising & Adtech Aerospace & Space AI B2B Raised 5 months ago Y Combinator: W23 Funding summary Updated 26 Oct 2026 **$91M** raised across 3 rounds since 2025, from 3 sources **$61M** Series A **$20M** Debt **$10M** Series A - **Latest round:** Series A, $10M May 2026 - **Biggest round:** $61M Series A · Sept 2025 - **Investors:** 12 See who backed them ## The funding story Each circle is a round, placed by date and sized by amount. The line above is the running total. 2026 **$61M** Series A **$20M** Debt **$10M** Series A - **First round:** Series A, $61M - **Biggest round:** $61M - **Usual gap between rounds:** 6 months ## The rounds - **May 2026** Series A **$10M** *5 new* [Y Combinator](https://millionrounds.com/fund/y-combinator) [SignalFire](https://millionrounds.com/fund/signalfire) [UBS](https://millionrounds.com/fund/ubs) [Triangle Tweener Fund](https://millionrounds.com/fund/triangle-tweener-fund) [Sahin Boydas](https://millionrounds.com/fund/sahin-boydas) Reported by Ventureburn SEC filing: $5K sold, first sale Mar 2026 - **Mar 2026** Debt **$20M** *3 new* *2 returning* [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) [LD Capital](https://millionrounds.com/fund/xie) [Pelion Venture Partners](https://millionrounds.com/fund/pelion-venture-partners) [Shield Capital](https://millionrounds.com/fund/shield-capital) Source recorded - **Sept 2025** Series A **$61M** *4 new* [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) [Point72 Ventures](https://millionrounds.com/fund/point72-ventures) [Kickstart](https://millionrounds.com/fund/kickstart) Source recorded SEC filing: $4.1M sold, first sale May 2025 ## Who was in which round The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led. **Series A** 2025 **Debt** 2026 **Series A** 2026 [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) [Y Combinator](https://millionrounds.com/fund/y-combinator) [LD Capital](https://millionrounds.com/fund/xie) [SignalFire](https://millionrounds.com/fund/signalfire) [Pelion Venture Partners](https://millionrounds.com/fund/pelion-venture-partners) [Point72 Ventures](https://millionrounds.com/fund/point72-ventures) [Kickstart](https://millionrounds.com/fund/kickstart) [UBS](https://millionrounds.com/fund/ubs) [Triangle Tweener Fund](https://millionrounds.com/fund/triangle-tweener-fund) ## Everyone who backed them [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) VC firm **2** rounds [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) VC firm **2** rounds [Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **1** round [LD Capital](https://millionrounds.com/fund/xie) VC firm **1** round [SignalFire](https://millionrounds.com/fund/signalfire) VC firm **1** round [Pelion Venture Partners](https://millionrounds.com/fund/pelion-venture-partners) VC firm **1** round [Point72 Ventures](https://millionrounds.com/fund/point72-ventures) VC firm **1** round [Kickstart](https://millionrounds.com/fund/kickstart) VC firm **1** round [UBS](https://millionrounds.com/fund/ubs) Wealth manager **1** round [Triangle Tweener Fund](https://millionrounds.com/fund/triangle-tweener-fund) VC firm **1** round [Sahin Boydas](https://millionrounds.com/fund/sahin-boydas) Angel **1** round [Shield Capital](https://millionrounds.com/fund/shield-capital) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=vector). ## Quick answers about Vector ### Who invested in Vector? Vector's investors include Alumni Ventures, Lightspeed Venture Partners, Y Combinator, LD Capital and SignalFire, and 7 more on record. ### How much has Vector raised? Vector has raised $91M across 3 rounds since 2025. ### When did Vector last raise? Vector's most recent round was a Series A of $10M in May 2026. ### What was Vector's biggest round? Vector's largest round on record is $61M (Series A), in Sept 2025. ### Who backed Vector first? Vector's first round on record, in Sept 2025, was backed by Alumni Ventures, Lightspeed Venture Partners and Point72 Ventures and 1 others. ### What stage is Vector at? Vector's latest named round is a Series A, in May 2026. ### Where is Vector based? Vector is based in the United Kingdom. ## Companies like Vector In the same sector, and raised in the last eighteen months. 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