# Cybersecurity investors in United States (2026 list)

> 702 cybersecurity investors in United States, 92% active in the last 12 months. Led by Y Combinator, Techstars, 500 Global. Ranked by what they funded.

Source: https://millionrounds.com/lists/cybersecurity-investors-in-united-states (Millionrounds; every figure on the page links to its filing or article)

[Investor Lists](https://millionrounds.com/lists)

# Cybersecurity investors in United States

Updated 7 November 2026

Firms observed backing a cybersecurity company in United States in the last two years, wherever the firm is based.

[See all 702 *→*](https://millionrounds.com/login?join=1&next=%2Fapp%2Finvestor-lists%2Fcybersecurity-investors-in-united-states)The top 25

**702** investors on the list *+1* this week

**13,397** cheques in 12 months *-8%* against the market

**$17M** median round they joined *+108%* against the market median

**92%** wrote a cheque in 12 months

**59%** 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 [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) *Deploying now* Government · United States **1,869** **$926K** median round **Sept 2026** last seen
- 6 [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) *Deploying now* VC firm · United States **1,661** **$27M** median round **Nov 2026** last seen
- 7 [New Enterprise Associates](https://millionrounds.com/fund/new-enterprise-associates) *Deploying now* VC firm · United States **1,610** **$34M** median round **Oct 2026** last seen
- 8 [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
- 9 [Plug and Play](https://millionrounds.com/fund/plug-and-play) *Deploying now* Accelerator · United States **1,561** **$5M** median round **Nov 2026** last seen
- 10 [General Catalyst](https://millionrounds.com/fund/general-catalyst) *Deploying now* VC firm · United States **1,387** **$27M** median round **Nov 2026** last seen
- 11 [SV Angel](https://millionrounds.com/fund/sv-angel) *Deploying now* VC firm · United States **1,349** **$18M** median round **Oct 2026** last seen
- 12 [Accel](https://millionrounds.com/fund/accel) *Deploying now* VC firm · United States **1,341** **$32M** median round **Nov 2026** last seen
- 13 [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) *Deploying now* VC firm · United States **1,341** **$35M** median round **Nov 2026** last seen
- 14 [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) *Deploying now* VC firm · United States **1,128** **$26M** median round **Nov 2026** last seen
- 15 [Intel Capital](https://millionrounds.com/fund/intel-capital) *Deploying now* Corporate VC · United States **1,123** **$22M** median round **Oct 2026** last seen
- 16 [Founders Fund](https://millionrounds.com/fund/founders-fund) *Deploying now* VC firm · United States **1,122** **$15M** median round **Oct 2026** last seen
- 17 [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
- 18 [Index Ventures](https://millionrounds.com/fund/index-ventures) *Deploying now* VC firm · United Kingdom **1,027** **$31M** median round **Nov 2026** last seen
- 19 [Gaingels](https://millionrounds.com/fund/gaingels) *Deploying now* Private equity · United States **1,010** **$8M** median round **Oct 2026** last seen
- 20 [MassChallenge](https://millionrounds.com/fund/masschallenge) *Deploying now* Accelerator · United States **984** **$1.8M** median round **Sept 2026** last seen
- 21 [Google Ventures](https://millionrounds.com/fund/gv) *Deploying now* Corporate VC · United States **884** **$38M** median round **Oct 2026** last seen
- 22 [First Round Capital](https://millionrounds.com/fund/first-round-capital) *Deploying now* VC firm · United States **807** **$18M** median round **Oct 2026** last seen
- 23 [BoxGroup](https://millionrounds.com/fund/boxgroup) *Deploying now* VC firm · United States **773** **$18M** median round **Nov 2026** last seen
- 24 [Tiger Global Management](https://millionrounds.com/fund/tiger-global-management) *Deploying now* VC firm · United States **773** **$47M** median round **Nov 2026** last seen
- 25 [Insight Partners](https://millionrounds.com/fund/insight-venture-partners) *Deploying now* VC firm · United States **765** **$40M** median round **Oct 2026** last seen

**677 more on this list**

All 702 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%2Fcybersecurity-investors-in-united-states)

## 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 *With* [U.S. Venture Partners](https://millionrounds.com/fund/u-s-venture-partners-usvp)
- **6** Nov **[Humble Robotics](https://millionrounds.com/company/humble-robotics)** Series A · $51M *With* [Eclipse](https://millionrounds.com/fund/eclipse)
- **6** Nov **[Ocient](https://millionrounds.com/company/ocient)** Series C · $100M *With* [Greycroft](https://millionrounds.com/fund/greycroft)
- **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* [Tiger Global Management](https://millionrounds.com/fund/tiger-global-management)

## Stages This Year

6,421 rounds

- Seed **20%**
- Venture **20%**
- Series A **17%**
- Pre-seed **9%**
- Series B **8%**
- Other **26%**

## What They Backed

Sectors, last 12 months

- AI **2,732**
- Fintech **406**
- Biotech **368**
- Healthcare **365**
- Big Data & Analytics **357**
- Financial Services **255**

## Cheques by Quarter

Led Joined

3,650 Q1 25

3,817 Q2 25

4,081 Q3 25

4,305 Q4 25

4,225 Q1 26

3,664 Q2 26

2,990 Q3 26

882 Q4 26

The last bar is the quarter still running.

## Lists Like This

- [AI investors in United States 3,683](https://millionrounds.com/lists/ai-investors-in-united-states)
- [Fintech investors in United States 1,166](https://millionrounds.com/lists/fintech-investors-in-united-states)
- [AI investors in United Kingdom 1,039](https://millionrounds.com/lists/ai-investors-in-united-kingdom)
- [Big Data & Analytics investors in United States 1,039](https://millionrounds.com/lists/big-data-investors-in-united-states)
- [Biotech investors in United States 914](https://millionrounds.com/lists/biotech-investors-in-united-states)
- [Energy investors in United States 798](https://millionrounds.com/lists/energy-investors-in-united-states)
- [Robotics investors in United States 797](https://millionrounds.com/lists/robotics-investors-in-united-states)
- [Construction investors in United States 742](https://millionrounds.com/lists/construction-investors-in-united-states)
- [Hardware & Electronics investors in United States 663](https://millionrounds.com/lists/hardware-investors-in-united-states)

[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).

As an Amazon Associate we earn from qualifying purchases.

## Quick answers about cybersecurity investors in United States

### Who are the most active cybersecurity investors in United States?

By cheques observed, the most active are Y Combinator, Techstars, 500 Global, Sequoia Capital and National Science Foundation.

### How many cybersecurity investors in United States are there?

702 are on record. 92% made an investment in the last 12 months and 59% have led a round.

### Which stages do cybersecurity investors in United States back?

Of the rounds with a named stage in the last 12 months, mostly Seed (28%) and Series A (24%).

### How big are the rounds cybersecurity investors in United States join?

The typical (median) round among the leading investors here is $22M.

### Which sectors do cybersecurity investors in United States back most?

In the last 12 months, mostly AI, Fintech and Biotech.

### Which cybersecurity investors in United States lead the most rounds?

Andreessen Horowitz (114 led), Accel (103 led) and General Catalyst (97 led).

### Where are cybersecurity investors in United States based?

Most of the leading investors here are based in the United States (24 of the top 25); the rest in the United Kingdom.

### What have cybersecurity investors in United States invested in recently?

Recent rounds include LionBio Therapeutics (Pre-seed, Nov 2026, with South Park Commons), Physicl (Seed, Nov 2026, with U.S. Venture Partners) and Humble Robotics (Series A, Nov 2026, with Eclipse).

Built from the rounds we watched, refreshed every night. [How we count](https://millionrounds.com/methodology) · [Report a correction](https://millionrounds.com/corrections)