# Startup funding in the United Kingdom, September 2026: TEKEVER's $580M Series D leads 46 rounds > We read 46 equity rounds raised in the United Kingdom and announced in September 2026, raising $1.8B between them: 13% of the rounds we read worldwide that... Source: https://millionrounds.com/news/monthly/2026-09/united-kingdom (Millionrounds; every figure on the page links to its filing or article) Equity rounds **46** raised in the United Kingdom, 45 with an amount Raised **$1.8B** across those rounds Lead named **76%** of rounds say who led Share of the world **13%** of rounds; 5% of the money ## The biggest rounds - [1 T **TEKEVER** Series D · led by Baillie Gifford, UC Investments **$580M**](https://millionrounds.com/company/tekever) - [2 **Open Cosmos** Growth · led by ETF Partners, Trill Impact **$346M**](https://millionrounds.com/company/open-cosmos) - [3 B **Brahma AI** Growth · led by Multiples **$150M**](https://millionrounds.com/company/brahma-ai) - [4 **Basecamp Research** Series C · led by S32 **$140M**](https://millionrounds.com/company/basecamp-research) - [5 **Penelope Health** Series A · led by Thoreau **$100M**](https://millionrounds.com/company/penelope-health) - [6 **Metaview** Series C · led by Insight Partners **$60M**](https://millionrounds.com/company/metaview) - [7 **OMass Therapeutics** Series C **$53M**](https://millionrounds.com/company/omass-therapeutics) - [8 **Aptadir Therapeutics** Seed · led by 4BIO Capital **$46M**](https://millionrounds.com/company/aptadir-therapeutics) - [9 J **Jack & Jill** Series A · led by Air Street Capital **$40M**](https://millionrounds.com/company/jack-and-jill) - [10 **Microbiotica** Series C · led by British Business Bank **$35M**](https://millionrounds.com/company/microbiotica) ## Day by day Equity rounds raised in the United Kingdom and announced each day of September. The busiest day was 16 September, with 6. 1 September 30 September ## By stage, against the year Each stage's median this month beside its twelve-month median: the United Kingdom's own where we hold enough rounds for a benchmark, otherwise the worldwide one. [Pre-seed](https://millionrounds.com/benchmarks/pre-seed/united-kingdom) *7* **$2.2M** this month **$1.8M** 12 months here [Seed](https://millionrounds.com/benchmarks/seed/united-kingdom) *19* **$4.7M** this month **$3.2M** 12 months here [Series A](https://millionrounds.com/benchmarks/series-a/united-kingdom) *4* **$26M** this month **$13M** 12 months here [Series B](https://millionrounds.com/benchmarks/series-b/united-kingdom) *5* **$16M** this month **$42M** 12 months here [Series C](https://millionrounds.com/benchmarks/series-c) *4* **$57M** this month **$100M** 12 months, worldwide [Series D](https://millionrounds.com/benchmarks/series-d) *1* **$580M** this month **$150M** 12 months, worldwide [Growth](https://millionrounds.com/benchmarks/growth/united-kingdom) *6* **$20M** this month **$24M** 12 months here ## The most active leads Firms that led two or more of the month's rounds in the United Kingdom. - [**Mercia Asset Management** KVector, SCI Semiconductor, givestar *3 led*](https://millionrounds.com/fund/mercia-ventures) - [**Northstar Ventures** Dragonfly Advanced Materials, Magnitude Biosciences *2 led*](https://millionrounds.com/fund/northstar-ventures) ## In what - [AI](https://millionrounds.com/news/monthly/2026-09/sector/ai) **22** - [Biotech](https://millionrounds.com/news/monthly/2026-09/sector/biotech) **9** - [Healthcare](https://millionrounds.com/news/monthly/2026-09/sector/healthcare) **7** - [Fintech](https://millionrounds.com/news/monthly/2026-09/sector/fintech) **5** - Chemicals & Materials **4** - [Manufacturing](https://millionrounds.com/news/monthly/2026-09/sector/manufacturing) **4** - [Energy](https://millionrounds.com/news/monthly/2026-09/sector/energy) **4** - [Cleantech](https://millionrounds.com/news/monthly/2026-09/sector/cleantech) **3** AI was the busiest sector in the United Kingdom. ## Against the world - Rounds, the United Kingdom **46** - Rounds, worldwide **357** - Raised, the United Kingdom **$1.8B** - Raised, worldwide **$39B** [The whole of September 2026](https://millionrounds.com/news/monthly/2026-09) ## Other countries in September [116 rounds **United States** *→*](https://millionrounds.com/news/monthly/2026-09/united-states)[25 rounds **India** *→*](https://millionrounds.com/news/monthly/2026-09/india)[21 rounds **Canada** *→*](https://millionrounds.com/news/monthly/2026-09/canada)[13 rounds **Germany** *→*](https://millionrounds.com/news/monthly/2026-09/germany)[11 rounds **Australia** *→*](https://millionrounds.com/news/monthly/2026-09/australia)[9 rounds **France** *→*](https://millionrounds.com/news/monthly/2026-09/france)[9 rounds **China** *→*](https://millionrounds.com/news/monthly/2026-09/china) **How this roundup is made** It is written from the rounds we read that month in named articles and filings, counted by the country the company raised in. Only equity rounds with a stage count; debt, grants and public companies' raises do not. Each month the eight countries with the most equity rounds get their own roundup. We read more sources every month, so compare medians, not totals. [How we read rounds](https://millionrounds.com/methodology) · [Report a mistake](https://millionrounds.com/corrections)