# Cybersecurity startup funding, September 2026: Island's $400M Series F leads 24 rounds > We read 24 equity rounds in Cybersecurity announced in September 2026, raising $1.5B between them: 7% of all the rounds we read that month and 4% of the money. Source: https://millionrounds.com/news/monthly/2026-09/sector/cybersecurity (Millionrounds; every figure on the page links to its filing or article) Equity rounds **24** in Cybersecurity, 23 with an amount Raised **$1.5B** across those rounds Lead named **92%** of rounds say who led Share of the month **7%** of rounds; 4% of the money ## The biggest rounds - [1 **Island** Series F · United States · led by Evolution Equity Partners **$400M**](https://millionrounds.com/company/island) - 2 C **Cyera** Growth · United States · led by Goldman Sachs Alternatives **$400M** - [3 **Exein** Growth · Italy · led by Headline **$270M**](https://millionrounds.com/company/exein) - [4 H **HiddenLayer** Series B · United States · led by Delta-v Capital **$100M**](https://millionrounds.com/company/hiddenlayer) - 5 M **MIND** Series B · United States · led by Crosspoint Capital Partners **$72M** - [6 **Baselayer** Series A · United States · led by M13 **$35M**](https://millionrounds.com/company/baselayer) - [7 **Cymphony** Series A · United States · led by Sequoia Capital, SMBC Fin Atlas Beyond Fund **$30M**](https://millionrounds.com/company/cymphony) - [8 H **Huskeys** Series A · United States · led by Blackstone Innovations Investments **$27M**](https://millionrounds.com/company/huskeys) - [9 **QNu Labs** Series A · India · led by Speciale Invest, National Quantum Mission **$21M**](https://millionrounds.com/company/qnu-labs) - [10 **Hackuity** Series B · France · led by ForgePoint Capital **$19M**](https://millionrounds.com/company/hackuity) ## Day by day Equity rounds in Cybersecurity announced each day of September. The busiest day was 9 September, with 4. 1 September 30 September ## By stage, against the year Each stage's median this month beside its twelve-month median: the sector's own where we hold enough rounds for a benchmark, otherwise the one across all sectors. [Pre-seed](https://millionrounds.com/benchmarks/pre-seed) *4* **$2.1M** this month **$2.0M** 12 months, all sectors [Seed](https://millionrounds.com/benchmarks/seed/cybersecurity) *5* **$6.3M** this month **$10M** 12 months here [Series A](https://millionrounds.com/benchmarks/series-a/cybersecurity) *8* **$21M** this month **$25M** 12 months here [Series B](https://millionrounds.com/benchmarks/series-b/cybersecurity) *3* **$72M** this month **$58M** 12 months here [Growth](https://millionrounds.com/benchmarks/growth) *2* **$335M** this month **$113M** 12 months, all sectors ## Where - [United States](https://millionrounds.com/news/monthly/2026-09/united-states) **8** - [United Kingdom](https://millionrounds.com/news/monthly/2026-09/united-kingdom) **3** - Italy **2** - [France](https://millionrounds.com/news/monthly/2026-09/france) **1** - Ireland **1** - [Canada](https://millionrounds.com/news/monthly/2026-09/canada) **1** - Iceland **1** - Nigeria **1** United States had the most Cybersecurity rounds this month. ## Against the month - Rounds, Cybersecurity **24** - Rounds, all sectors **357** - Raised, Cybersecurity **$1.5B** - Raised, all sectors **$39B** [The whole of September 2026](https://millionrounds.com/news/monthly/2026-09) ## Other sectors in September [195 rounds **AI** *→*](https://millionrounds.com/news/monthly/2026-09/sector/ai)[51 rounds **Fintech** *→*](https://millionrounds.com/news/monthly/2026-09/sector/fintech)[39 rounds **Healthcare** *→*](https://millionrounds.com/news/monthly/2026-09/sector/healthcare)[30 rounds **Big Data & Analytics** *→*](https://millionrounds.com/news/monthly/2026-09/sector/big-data)[27 rounds **Biotech** *→*](https://millionrounds.com/news/monthly/2026-09/sector/biotech)[25 rounds **Robotics** *→*](https://millionrounds.com/news/monthly/2026-09/sector/robotics)[23 rounds **Hardware & Electronics** *→*](https://millionrounds.com/news/monthly/2026-09/sector/hardware)[22 rounds **Enterprise Software** *→*](https://millionrounds.com/news/monthly/2026-09/sector/enterprise-software)[21 rounds **Software** *→*](https://millionrounds.com/news/monthly/2026-09/sector/software)[21 rounds **Energy** *→*](https://millionrounds.com/news/monthly/2026-09/sector/energy)[21 rounds **Construction** *→*](https://millionrounds.com/news/monthly/2026-09/sector/construction)[20 rounds **Healthtech** *→*](https://millionrounds.com/news/monthly/2026-09/sector/healthtech)[20 rounds **SaaS** *→*](https://millionrounds.com/news/monthly/2026-09/sector/saas)[19 rounds **Logistics** *→*](https://millionrounds.com/news/monthly/2026-09/sector/logistics)[17 rounds **Manufacturing** *→*](https://millionrounds.com/news/monthly/2026-09/sector/manufacturing)[16 rounds **Cleantech** *→*](https://millionrounds.com/news/monthly/2026-09/sector/cleantech)[14 rounds **Aerospace & Space** *→*](https://millionrounds.com/news/monthly/2026-09/sector/aerospace)[14 rounds **Defence Tech** *→*](https://millionrounds.com/news/monthly/2026-09/sector/defensetech)[13 rounds **Telecoms** *→*](https://millionrounds.com/news/monthly/2026-09/sector/telecom)[13 rounds **Semiconductors** *→*](https://millionrounds.com/news/monthly/2026-09/sector/semiconductors)[13 rounds **Climate Tech** *→*](https://millionrounds.com/news/monthly/2026-09/sector/climate)[11 rounds **Automotive & EVs** *→*](https://millionrounds.com/news/monthly/2026-09/sector/automotive)[10 rounds **Cloud** *→*](https://millionrounds.com/news/monthly/2026-09/sector/cloud) **How this roundup is made** It is written from the rounds we read that month in named articles and filings, by the sectors we file each company under; a company can sit in more than one, so sector roundups overlap. Only equity rounds with a stage count; debt, grants and public companies' raises do not. Each sector with 10 or more equity rounds in a month gets its 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)