# Seed cybersecurity investors (2026 list) > 529 seed cybersecurity investors, 82% active in the last 12 months. Led by Y Combinator, Techstars, 500 Global. Ranked by what they funded. Source: https://millionrounds.com/lists/seed-cybersecurity-investors (Millionrounds; every figure on the page links to its filing or article) [Investor Lists](https://millionrounds.com/lists) # Seed cybersecurity investors Updated 7 November 2026 Firms we have watched take part in a 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 529 *→*](https://millionrounds.com/login?join=1&next=%2Fapp%2Finvestor-lists%2Fseed-cybersecurity-investors)The top 25 **529** investors on the list *-5* this week **9,499** cheques in 12 months *-13%* against the market **$6.8M** median round they joined *-16%* against the market median **82%** wrote a cheque in 12 months **49%** 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 [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) *Deploying now* VC firm · United States **1,661** **$27M** median round **Nov 2026** last seen - 6 [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) *Deploying now* VC firm · United States **1,598** **$12M** median round **Nov 2026** last seen - 7 [Plug and Play](https://millionrounds.com/fund/plug-and-play) *Deploying now* Accelerator · United States **1,561** **$5M** median round **Nov 2026** last seen - 8 [General Catalyst](https://millionrounds.com/fund/general-catalyst) *Deploying now* VC firm · United States **1,387** **$27M** median round **Nov 2026** last seen - 9 [SV Angel](https://millionrounds.com/fund/sv-angel) *Deploying now* VC firm · United States **1,349** **$18M** median round **Oct 2026** last seen - 10 [Accel](https://millionrounds.com/fund/accel) *Deploying now* VC firm · United States **1,341** **$32M** median round **Nov 2026** last seen - 11 [Wayra](https://millionrounds.com/fund/wayra) *Deploying now* Corporate VC · Germany **1,160** **$2M** median round **Sept 2026** last seen - 12 [Bpifrance](https://millionrounds.com/fund/bpifrance) *Deploying now* Government · France **1,151** **$4.5M** median round **Oct 2026** last seen - 13 [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) *Deploying now* VC firm · United States **1,128** **$26M** median round **Nov 2026** last seen - 14 [Intel Capital](https://millionrounds.com/fund/intel-capital) *Deploying now* Corporate VC · United States **1,123** **$22M** median round **Oct 2026** last seen - 15 [Founders Fund](https://millionrounds.com/fund/founders-fund) *Deploying now* VC firm · United States **1,122** **$15M** median round **Oct 2026** last seen - 16 [Bessemer Venture Partners](https://millionrounds.com/fund/bessemer-venture-partners) *Deploying now* VC firm · United States **1,038** **$30M** median round **Nov 2026** last seen - 17 [Index Ventures](https://millionrounds.com/fund/index-ventures) *Deploying now* VC firm · United Kingdom **1,027** **$31M** median round **Nov 2026** last seen - 18 [Gaingels](https://millionrounds.com/fund/gaingels) *Deploying now* Private equity · United States **1,010** **$8M** median round **Oct 2026** last seen - 19 [MassChallenge](https://millionrounds.com/fund/masschallenge) *Deploying now* Accelerator · United States **984** **$1.8M** median round **Sept 2026** last seen - 20 [Google Ventures](https://millionrounds.com/fund/gv) *Deploying now* Corporate VC · United States **884** **$38M** median round **Oct 2026** last seen - 21 [Kima Ventures](https://millionrounds.com/fund/kima-ventures) *Deploying now* VC firm · France **859** **$4.2M** median round **Nov 2026** last seen - 22 [Google for Startups](https://millionrounds.com/fund/google-for-startups) *Deploying now* Accelerator · United States **811** **$1.4M** median round **Sept 2026** last seen - 23 [Redpoint](https://millionrounds.com/fund/redpoint) *Deploying now* VC firm · United States **742** **$32M** median round **Nov 2026** last seen - 24 [Menlo Ventures](https://millionrounds.com/fund/menlo-ventures) *Deploying now* VC firm · United States **740** **$37M** median round **Oct 2026** last seen - 25 [Antler](https://millionrounds.com/fund/antler) *Deploying now* VC firm · United Kingdom **729** **$1M** median round **Nov 2026** last seen **504 more on this list** All 529 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%2Fseed-cybersecurity-investors) ## The Newest Cheques Rounds this list's investors joined most recently - **7** Nov **[LionBio Therapeutics](https://millionrounds.com/company/lionbio-therapeutics)** Pre-seed · $6M *With* [South Park Commons](https://millionrounds.com/fund/south-park-commons) - **6** Nov **[Physicl](https://millionrounds.com/company/physicl)** Seed · $10M *Led by* [Inovia Capital](https://millionrounds.com/fund/inovia-capital) - **6** Nov **[Ocient](https://millionrounds.com/company/ocient)** Series C · $100M *With* [In-Q-Tel](https://millionrounds.com/fund/iqt) - **6** Nov **[Thinking Machines Lab](https://millionrounds.com/company/thinking-machines-lab)** Other · $5B *Led by* [Accel](https://millionrounds.com/fund/accel) - **6** Nov **[Harbinger](https://millionrounds.com/company/harbinger)** Series D+ · $240M *Led by* [Ridgeline](https://millionrounds.com/fund/ridgeline-2) - **5** Nov **[Soter Insure](https://millionrounds.com/company/soter-insure)** Series B *With* [Coinbase Ventures](https://millionrounds.com/fund/coinbase) ## Stages This Year 5,863 rounds - Seed **23%** - Venture **19%** - Series A **17%** - Pre-seed **11%** - Series B **8%** - Other **22%** ## What They Backed Sectors, last 12 months - AI **2,504** - Fintech **364** - Healthcare **322** - Biotech **316** - Big Data & Analytics **313** - Cybersecurity **233** ## Cheques by Quarter Led Joined 2,864 Q1 25 2,858 Q2 25 3,021 Q3 25 3,113 Q4 25 3,018 Q1 26 2,563 Q2 26 2,097 Q3 26 628 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=seed). As an Amazon Associate we earn from qualifying purchases. ## Quick answers about seed cybersecurity investors ### Who are the most active seed cybersecurity investors? By cheques observed, the most active are Y Combinator, Techstars, 500 Global, Sequoia Capital and Andreessen Horowitz. ### How many seed cybersecurity investors are there? 529 are on record. 82% made an investment in the last 12 months and 49% have led a round. ### Which stages do seed cybersecurity investors back? Of the rounds with a named stage in the last 12 months, mostly Seed (32%) and Series A (23%). ### How big are the rounds seed cybersecurity investors join? The typical (median) round among the leading investors here is $15M. ### Which sectors do seed cybersecurity investors back most? In the last 12 months, mostly AI, Fintech and Healthcare. ### Which seed cybersecurity investors lead the most rounds? Andreessen Horowitz (114 led), Accel (103 led) and General Catalyst (97 led). ### Where are seed cybersecurity investors based? Most of the leading investors here are based in the United States (20 of the top 25); the rest in France and the United Kingdom. ### What have seed cybersecurity investors invested in recently? Recent rounds include LionBio Therapeutics (Pre-seed, Nov 2026, with South Park Commons), Physicl (Seed, Nov 2026, with Inovia Capital) and Ocient (Series C, Nov 2026, with In-Q-Tel). Built from the rounds we watched, refreshed every night. [How we count](https://millionrounds.com/methodology) · [Report a correction](https://millionrounds.com/corrections)