# Cybersecurity startup funding, August 2026: Horizon3's $250M Series E leads 11 rounds > We read 11 equity rounds in Cybersecurity announced in August 2026, raising $664M between them: 5% of all the rounds we read that month and 3% of the money. Source: https://millionrounds.com/news/monthly/2026-08/sector/cybersecurity (Millionrounds; every figure on the page links to its filing or article) Equity rounds **11** in Cybersecurity, 11 with an amount Raised **$664M** across those rounds Lead named **73%** of rounds say who led Share of the month **5%** of rounds; 3% of the money ## The biggest rounds - [1 **Horizon3** Series E · United States · led by New Enterprise Associates, NightDragon **$250M**](https://millionrounds.com/company/horizon3) - [2 **Socure** Growth · United States **$156M**](https://millionrounds.com/company/socure) - [3 **CodeRabbit** Series C · United States · led by Atomico, Smash Capital **$143M**](https://millionrounds.com/company/coderabbit) - [4 **Yardstik** Series B · United States · led by Harbert Growth Partners **$30M**](https://millionrounds.com/company/yardstik) - [5 **Prevalent AI** Growth · United Kingdom · led by Integrity Growth Partners **$22M**](https://millionrounds.com/company/prevalent-ai) - [6 **Baselayer** Series A · United States **$20M**](https://millionrounds.com/company/baselayer) - [7 T **Terra Industries** Seed · Nigeria · led by 8VC **$18M**](https://millionrounds.com/company/terra-industries) - [8 **Apate.AI** Seed · Australia · led by Lobby Capital **$8.2M**](https://millionrounds.com/company/apate-ai) - [9 **Falkin** Seed · United Kingdom **$7.2M**](https://millionrounds.com/company/falkin) - [10 **Velatir** Series A · Denmark · led by Spintop Ventures, Ugly Duckling Ventures **$5.8M**](https://millionrounds.com/company/velatir) ## Day by day Equity rounds in Cybersecurity announced each day of August. The busiest day was 3 August, with 2. 1 August 31 August ## 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) *1* **$3.6M** this month **$2.0M** 12 months, all sectors [Seed](https://millionrounds.com/benchmarks/seed/cybersecurity) *3* **$8.2M** this month **$10M** 12 months here [Series A](https://millionrounds.com/benchmarks/series-a/cybersecurity) *2* **$13M** this month **$25M** 12 months here [Series B](https://millionrounds.com/benchmarks/series-b/cybersecurity) *1* **$30M** this month **$58M** 12 months here [Series C](https://millionrounds.com/benchmarks/series-c) *1* **$143M** this month **$100M** 12 months, all sectors [Growth](https://millionrounds.com/benchmarks/growth) *2* **$89M** this month **$113M** 12 months, all sectors ## Where - [United States](https://millionrounds.com/news/monthly/2026-08/united-states) **5** - [United Kingdom](https://millionrounds.com/news/monthly/2026-08/united-kingdom) **2** - [Australia](https://millionrounds.com/news/monthly/2026-08/australia) **1** - Denmark **1** - Nigeria **1** United States had the most Cybersecurity rounds this month. ## Against the month - Rounds, Cybersecurity **11** - Rounds, all sectors **220** - Raised, Cybersecurity **$664M** - Raised, all sectors **$25B** [The whole of August 2026](https://millionrounds.com/news/monthly/2026-08) ## Other sectors in August [117 rounds **AI** *→*](https://millionrounds.com/news/monthly/2026-08/sector/ai)[32 rounds **Fintech** *→*](https://millionrounds.com/news/monthly/2026-08/sector/fintech)[24 rounds **Robotics** *→*](https://millionrounds.com/news/monthly/2026-08/sector/robotics)[21 rounds **Construction** *→*](https://millionrounds.com/news/monthly/2026-08/sector/construction)[18 rounds **Healthcare** *→*](https://millionrounds.com/news/monthly/2026-08/sector/healthcare)[18 rounds **Software** *→*](https://millionrounds.com/news/monthly/2026-08/sector/software)[17 rounds **Energy** *→*](https://millionrounds.com/news/monthly/2026-08/sector/energy)[14 rounds **Logistics** *→*](https://millionrounds.com/news/monthly/2026-08/sector/logistics)[14 rounds **Big Data & Analytics** *→*](https://millionrounds.com/news/monthly/2026-08/sector/big-data)[13 rounds **Defence Tech** *→*](https://millionrounds.com/news/monthly/2026-08/sector/defensetech)[12 rounds **Enterprise Software** *→*](https://millionrounds.com/news/monthly/2026-08/sector/enterprise-software)[12 rounds **Cloud** *→*](https://millionrounds.com/news/monthly/2026-08/sector/cloud)[11 rounds **Cleantech** *→*](https://millionrounds.com/news/monthly/2026-08/sector/cleantech)[11 rounds **Biotech** *→*](https://millionrounds.com/news/monthly/2026-08/sector/biotech)[10 rounds **Climate Tech** *→*](https://millionrounds.com/news/monthly/2026-08/sector/climate) **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)