# Pre-seed cybersecurity investors (2026 list) > 110 pre-seed cybersecurity investors, 88% active in the last 12 months. Led by Y Combinator, Techstars, 500 Global. Ranked by what they funded. Source: https://millionrounds.com/lists/pre-seed-cybersecurity-investors (Millionrounds; every figure on the page links to its filing or article) [Investor Lists](https://millionrounds.com/lists) # Pre-seed cybersecurity investors Updated 7 November 2026 Firms we have watched take part in a pre-seed round raised by a cybersecurity company in the last two years. Both the stage and the sector are what they did, not what their website says. [See all 110 *→*](https://millionrounds.com/login?join=1&next=%2Fapp%2Finvestor-lists%2Fpre-seed-cybersecurity-investors)The top 25 **110** investors on the list *+8* this week **2,900** cheques in 12 months *-21%* against the market **$4.1M** median round they joined *-49%* against the market median **88%** wrote a cheque in 12 months **50%** have led a round ## The Top 25 Ordered by cheques observed, never by anything anyone paid for Deploying now (25) - 1 [Y Combinator](https://millionrounds.com/fund/y-combinator) *Deploying now* Accelerator · United States **6,412** **$3M** median round **Oct 2026** last seen - 2 [Techstars](https://millionrounds.com/fund/techstars) *Deploying now* VC firm · United States **2,989** **$1.2M** median round **Nov 2026** last seen - 3 [500 Global](https://millionrounds.com/fund/500-startups) *Deploying now* Angel · United States **2,140** **$3.6M** median round **Oct 2026** last seen - 4 [Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) *Deploying now* VC firm · United States **2,099** **$35M** median round **Nov 2026** last seen - 5 [Plug and Play](https://millionrounds.com/fund/plug-and-play) *Deploying now* Accelerator · United States **1,561** **$5M** median round **Nov 2026** last seen - 6 [Right Side Capital Management](https://millionrounds.com/fund/right-side-capital-management) *Deploying now* VC firm · United States **834** **$875K** median round **Sept 2026** last seen - 7 [Antler](https://millionrounds.com/fund/antler) *Deploying now* VC firm · United Kingdom **729** **$1M** median round **Nov 2026** last seen - 8 [Greycroft](https://millionrounds.com/fund/greycroft) *Deploying now* VC firm · United States **655** **$13M** median round **Nov 2026** last seen - 9 [Benchmark](https://millionrounds.com/fund/benchmark) *Deploying now* VC firm · United States **587** **$30M** median round **Oct 2026** last seen - 10 [Flybridge](https://millionrounds.com/fund/flybridge) *Deploying now* VC firm · United States **534** **$5M** median round **Sept 2026** last seen - 11 [Founder Collective](https://millionrounds.com/fund/founder-collective) *Deploying now* VC firm · United States **502** **$8M** median round **Sept 2026** last seen - 12 [Soma Capital](https://millionrounds.com/fund/soma-capital) *Deploying now* VC firm · United States **456** **$4.2M** median round **Oct 2026** last seen - 13 [Neo](https://millionrounds.com/fund/neo) *Deploying now* Accelerator · United States **364** **$5.5M** median round **Nov 2026** last seen - 14 [Venture Kick](https://millionrounds.com/fund/venture-kick) *Deploying now* Accelerator · Switzerland **329** **$2.1M** median round **Nov 2026** last seen - 15 [Betaworks](https://millionrounds.com/fund/betaworks) *Deploying now* VC firm · United States **251** **$4.3M** median round **Aug 2026** last seen - 16 [Pear VC](https://millionrounds.com/fund/pear-vc) *Deploying now* VC firm · United States **251** **$10M** median round **Sept 2026** last seen - 17 [Startup Wise Guys](https://millionrounds.com/fund/startup-wise-guys) *Deploying now* Accelerator · Estonia **237** **$551K** median round **Sept 2026** last seen - 18 [Forum Ventures](https://millionrounds.com/fund/forum-ventures) *Deploying now* VC firm · United States **208** **$1.5M** median round **Oct 2026** last seen - 19 [Notion Capital](https://millionrounds.com/fund/notion-capital) *Deploying now* VC firm · United Kingdom **202** **$9.2M** median round **Oct 2026** last seen - 20 [Ring Capital](https://millionrounds.com/fund/ring) *Deploying now* VC firm · France **193** **$5.9M** median round **Oct 2026** last seen - 21 [Ascension](https://millionrounds.com/fund/ascension) *Deploying now* VC firm · United Kingdom **190** **$3.4M** median round **Oct 2026** last seen - 22 [360 Capital](https://millionrounds.com/fund/360-capital) *Deploying now* VC firm · France **167** **$7.8M** median round **Nov 2026** last seen - 23 [Fuel Ventures](https://millionrounds.com/fund/fuel-ventures) *Deploying now* VC firm · United Kingdom **163** **$1.9M** median round **Oct 2026** last seen - 24 [Business Finland](https://millionrounds.com/fund/business-finland) *Deploying now* Accelerator · Finland **153** **$2.3M** median round **Sept 2026** last seen - 25 [MaC Venture Capital](https://millionrounds.com/fund/mac-venture-capital) *Deploying now* VC firm · United States **147** **$5.5M** median round **Oct 2026** last seen **85 more on this list** All 110 are in the app, with filters for stage, sector and market. A free account shows 10 per search, Pro up to 1,000. [See the whole list *→*](https://millionrounds.com/login?join=1&next=%2Fapp%2Finvestor-lists%2Fpre-seed-cybersecurity-investors) ## The Newest Cheques Rounds this list's investors joined most recently - **6** Nov **[Ocient](https://millionrounds.com/company/ocient)** Series C · $100M *With* [Greycroft](https://millionrounds.com/fund/greycroft) - **6** Nov **[Harbinger](https://millionrounds.com/company/harbinger)** Series D+ · $240M *With* [Greycroft](https://millionrounds.com/fund/greycroft) - **5** Nov **[Potential Sciences](https://millionrounds.com/company/potential-sciences)** Seed *With* [Portfolio Ventures](https://millionrounds.com/fund/will-martin) - **5** Nov **[Claimlane](https://millionrounds.com/company/claimlane)** Series A · $6.3M *With* [Vendep Capital](https://millionrounds.com/fund/vendep-capital) - **4** Nov **[Amara](https://millionrounds.com/company/amara)** Pre-seed · $4.2M *With* [IBB Ventures](https://millionrounds.com/fund/ibb-ventures) - **4** Nov **[Lazarus AI](https://millionrounds.com/company/lazarus-ai)** $43M *With* [Techstars](https://millionrounds.com/fund/techstars) ## Stages This Year 2,536 rounds - Seed **22%** - Venture **21%** - Pre-seed **18%** - Series A **15%** - Series B **6%** - Other **17%** ## What They Backed Sectors, last 12 months - AI **1,222** - Fintech **164** - Big Data & Analytics **154** - Healthcare **130** - Financial Services **94** - Software **84** ## Cheques by Quarter Led Joined 988 Q1 25 925 Q2 25 1,034 Q3 25 1,013 Q4 25 902 Q1 26 823 Q2 26 614 Q3 26 161 Q4 26 The last bar is the quarter still running. ## Lists Like This - [Seed AI investors 2,922](https://millionrounds.com/lists/seed-ai-investors) - [Series A AI investors 2,490](https://millionrounds.com/lists/series-a-ai-investors) - [Series B AI investors 1,557](https://millionrounds.com/lists/series-b-ai-investors) - [Pre-seed AI investors 1,286](https://millionrounds.com/lists/pre-seed-ai-investors) - [Growth AI investors 1,186](https://millionrounds.com/lists/growth-ai-investors) - [Series A fintech investors 950](https://millionrounds.com/lists/series-a-fintech-investors) - [Series C AI investors 930](https://millionrounds.com/lists/series-c-ai-investors) - [Seed fintech investors 925](https://millionrounds.com/lists/seed-fintech-investors) - [Series A biotech investors 650](https://millionrounds.com/lists/series-a-biotech-investors) [All investor lists *→*](https://millionrounds.com/lists) ## Reading for founders in security - Hackers: Heroes of the Computer Revolution Steven Levy · 1984 4.16 from 8,649 ratings on Goodreads Security About the book A mere fifteen years ago, computer nerds were seen as marginal weirdos, outsiders whose world would never resonate with the mainstream. That was before one pioneering work documented the underground computer revolution that was about to change our world forever. With… On AmazonListen on Audible - The DevOps Handbook: How to Create World-Class Agility, Reliability, and Security in Technology Organizations Gene Kim · 2015 4.29 from 5,988 ratings on Goodreads Security Company building About the book Increase profitability, elevate work culture, and exceed productivity goals through DevOps practices.More than ever, the effective management of technology is critical for business competitiveness. For decades, technology leaders have struggled to balance agility, reliability,… On AmazonListen on Audible - Smartcuts: How Hackers, Innovators, and Icons Accelerate Success Shane Snow · 2014 3.88 from 6,577 ratings on Goodreads Security Company building Innovation About the book Entrepreneur and journalist Shane Snow (Wired, Fast Company, The New Yorker, and cofounder of Contently) analyzes the lives of people and companies that do incredible things in implausibly short time. How do some startups go from zero to billions in mere months? How did… On AmazonListen on Audible - The Innovators: How a Group of Hackers, Geniuses and Geeks Created the Digital Revolution Walter Isaacson · 2014 4.12 from 40,532 ratings on Goodreads Security Innovation Company building About the book Following his blockbuster biography of Steve Jobs, The Innovators is Walter Isaacson’s revealing story of the people who created the computer and the Internet. It is destined to be the standard history of the digital revolution and an indispensable guide to how innovation really… On AmazonListen on Audible More books for founders and investors on the [Reading List](https://millionrounds.com/reading-list?role=founder&industry=security&stage=idea). As an Amazon Associate we earn from qualifying purchases. ## Quick answers about pre-seed cybersecurity investors ### Who are the most active pre-seed cybersecurity investors? By cheques observed, the most active are Y Combinator, Techstars, 500 Global, Sequoia Capital and Plug and Play. ### How many pre-seed cybersecurity investors are there? 110 are on record. 88% made an investment in the last 12 months and 50% have led a round. ### Which stages do pre-seed cybersecurity investors back? Of the rounds with a named stage in the last 12 months, mostly Seed (30%) and Pre-seed (25%). ### How big are the rounds pre-seed cybersecurity investors join? The typical (median) round among the leading investors here is $4.3M. ### Which sectors do pre-seed cybersecurity investors back most? In the last 12 months, mostly AI, Fintech and Big Data & Analytics. ### Which pre-seed cybersecurity investors lead the most rounds? Sequoia Capital (91 led), Benchmark (18 led) and Greycroft (14 led). ### Where are pre-seed cybersecurity investors based? Among the most active, most are based in the United States (16), the United Kingdom (4) and France (2). ### What have pre-seed cybersecurity investors invested in recently? Recent rounds include Ocient (Series C, Nov 2026, with Greycroft), Harbinger (Series D+, Nov 2026, with Greycroft) and Potential Sciences (Seed, Nov 2026, with Portfolio Ventures). Built from the rounds we watched, refreshed every night. [How we count](https://millionrounds.com/methodology) · [Report a correction](https://millionrounds.com/corrections)