90 pre-seed cybersecurity investors
We list 90 pre-seed cybersecurity investors as of November 2026: 61 have an SEC filing on file and 29 were checked on the firm's own website or an official register, and the list was last checked on 9 Nov 2026. The states with the most are California (23), New York (10) and Massachusetts (5).
Top 5 pre-seed cybersecurity investors, ranked by recent fund activity
Among firms with a published profile and a dated fund or deal in the last 24 months. The rule: Activity score out of 100: recency of the latest fund filing or dated deal (35: full marks within 3 months, then stepping down at 6, 12 and 24 months), share of the observed portfolio in this sector (25; half of that when the sector is stated only), stage focus (15: all of it when pre-seed is the only stage the firm states, split evenly when it states more), size of the fund on file on a log scale (15) and completeness of the public record (10). Stage focus is our research, not an SEC figure. It is a measure of activity and fit, not of quality or returns. The same rule orders the whole list; it is repeated in the method box.
Glasswing Ventures
Type: VC firm · HQ: Boston, MA · Stages: Pre-seed · Focus: Cybersecurity, AI, Future of Work, Logistics · Latest activity: New deal, Jun 2026 · Fund size on file: $203M (SEC Form D, 2024)
Dated new deal in Jun 2026; $203M fund on file (SEC Form D, 2024); states cybersecurity as a focus; backs pre-seed; 8 named decision-makers on file.
Menlo Ventures
Type: VC firm · HQ: Menlo Park, CA · Stages: Pre-seed, Seed, Series A, Series B, Growth · Focus: Cybersecurity, AI, Media, Robotics · Latest activity: New fund, Sep 2026 · Fund size on file: $800M (SEC Form D, 2025)
Latest fund filing dated Sep 2026; $800M fund on file (SEC Form D, 2025); states cybersecurity as a focus; backs pre-seed, seed, Series A; 8 named decision-makers on file.
Axeleo Capital
Type: VC firm · HQ: Paris, France · Stages: Pre-seed, Seed, Series A, Series B · Focus: Cybersecurity, SaaS, B2B, AI · Latest activity: Portfolio news, Oct 2026 · Fund size or assets: €300M (own site)
Portfolio news dated Oct 2026; €300M on file (own site); states cybersecurity as a focus; backs pre-seed, seed, Series A; 5 named decision-makers on file.
MiddleGame Ventures
Type: VC firm · HQ: Luxembourg, Luxembourg · Stages: Pre-seed, Seed, Series A, Series B · Focus: Cybersecurity, Fintech, AI, Deep Tech · Latest activity: New deal, Sep 2026 · Fund size or assets: €300M (own site)
Dated new deal in Sep 2026; €300M on file (own site); states cybersecurity as a focus; backs pre-seed, seed, Series A; 5 named decision-makers on file.
White Rabbit
Type: VC firm · HQ: San Francisco, CA · Stages: Pre-seed · Focus: Cybersecurity · Latest activity: New fund, Oct 2026 · Fund size on file: $6M (SEC Form D, 2025)
Latest fund filing dated Oct 2026; $6M fund on file (SEC Form D, 2025); states cybersecurity as a focus; backs pre-seed; 2 named decision-makers on file.
First 25 of 90 pre-seed cybersecurity investors
| Investor | Type | HQ | Stagesour research | Focusour research | Latest fund or deal | Fund sizeas filed or stated | Checked | Contacts |
|---|---|---|---|---|---|---|---|---|
| Glasswing Ventures | VC firm | Boston, MA | Pre-seed | Cybersecurity, AI, Future of Work, Logistics | New deal, Jun 2026 | $203M (SEC Form D, 2024) | 4 Nov 2026 | 8 names, firm email · Unlock |
| Menlo Ventures | VC firm | Menlo Park, CA | Pre-seed, Seed, Series A, Series B, Growth | Cybersecurity, AI, Media, Robotics | New fund, Sep 2026 | $800M (SEC Form D, 2025) | 4 Nov 2026 | 8 names · Unlock |
| Axeleo Capital | VC firm | Paris, France | Pre-seed, Seed, Series A, Series B | Cybersecurity, SaaS, B2B, AI | Portfolio news, Oct 2026 | €300M (own site) | 7 Nov 2026 | 5 names, firm email · Unlock |
| MiddleGame Ventures | VC firm | Luxembourg, Luxembourg | Pre-seed, Seed, Series A, Series B | Cybersecurity, Fintech, AI, Deep Tech | New deal, Sep 2026 | €300M (own site) | 7 Nov 2026 | 5 names, firm email · Unlock |
| White Rabbit | VC firm | San Francisco, CA | Pre-seed | Cybersecurity | New fund, Oct 2026 | $6M (SEC Form D, 2025) | 4 Nov 2026 | 2 names · Unlock |
| Silent Ventures | VC firm | Dallas, TX | Pre-seed | Cybersecurity, Defense Tech, AI, Logistics | New fund, Jul 2026 | $85M (SEC Form D, 2025) | 4 Nov 2026 | 1 name · Unlock |
| Squared Circle Square Two | VC firm | Plymouth, MN | Pre-seed, Seed | Cybersecurity | New fund, Oct 2026 | $100M (SEC Form D, 2026) | 4 Nov 2026 | 1 name · Unlock |
| Madrona | VC firm | Seattle, WA | Pre-seed, Seed, Series A, Series B, Growth | Cybersecurity, AI, Biotech, Consumer | New deal, Oct 2026 | $490M (SEC Form D, 2025) | 5 Nov 2026 | 8 names · Unlock |
| Crystal Venture Partners | VC firm | New York, NY | Pre-seed, Seed | Cybersecurity, Insurtech, AI, Fintech | New fund, Oct 2026 | $30M (SEC Form D, 2024) | 4 Nov 2026 | 5 names, firm email · Unlock |
| Roo Capital | VC firm | Coconut Grove, FL | Pre-seed, Seed, Series A, Growth | Cybersecurity, AI, Healthtech, Future of Work | New fund, Aug 2026 | $125M (SEC Form D, 2026) | 4 Nov 2026 | 8 names, firm email · Unlock |
| Leo Capital | VC firm | San Francisco, CA | Pre-seed, Seed | Cybersecurity, AI, Fintech, Insurtech | New deal, Oct 2026 | $20M (SEC Form D, 2026) | 4 Nov 2026 | 8 names · Unlock |
| Script Capital | VC firm | San Francisco, CA | Pre-seed, Seed | Cybersecurity, SaaS, AI | New fund, Sep 2026 | $20M (SEC Form D, 2026) | 4 Nov 2026 | 1 name · Unlock |
| Variant | VC firm | New York, NY | Pre-seed, Seed, Series A, Series B, Growth | Cybersecurity, Fintech, AI, Crypto and Web3 | New fund, Sep 2026 | $250M (SEC Form D, 2025) | 4 Nov 2026 | 8 names · Unlock |
| Wolver Ventures | VC firm | Spain | Pre-seed | Cybersecurity, Fintech, Defense Tech | Portfolio news, Jul 2026 | €20M (own site) | 7 Nov 2026 | 3 names · Unlock |
| boldstart ventures | VC firm | New York, NY | Pre-seed, Seed | Cybersecurity, AI, Developer Tools, Robotics | New deal, Jun 2026 | $250M (SEC Form D, 2024) | 5 Nov 2026 | 6 names · Unlock |
| SaaS Ventures | VC firm | Coral Gables, FL | Pre-seed, Seed, Series A, Series B, Growth | Cybersecurity, B2B, AI, SaaS | New fund, Sep 2026 | $50M (SEC Form D, 2021) | 4 Nov 2026 | 5 names · Unlock |
| Decibel | VC firm | Menlo Park, CA | Pre-seed | Cybersecurity, AI, Developer Tools, SaaS | New fund, Apr 2026 | $317M (SEC Form D, 2025) | 4 Nov 2026 | 8 names · Unlock |
| Joule Ventures | VC firm | New York, NY | Pre-seed, Seed | Cybersecurity, AI, Fintech, B2B | New fund, Jun 2026 | $100M (SEC Form D, 2023) | 4 Nov 2026 | 3 names, firm email · Unlock |
| Startup Wise Guys | Accelerator | Tallinn, Estonia | Pre-seed, Seed | Cybersecurity, B2B, SaaS, Fintech | Portfolio news, Oct 2026 | 7 Nov 2026 | 3 names, firm email · Unlock | |
| Westly Capital Partners | VC firm | Menlo Park, CA | Pre-seed, Seed, Series A, Series B, Growth | Cybersecurity, AI, Energy, Industrial Tech | New fund, May 2026 | $500M (SEC Form D, 2026) | 4 Nov 2026 | 8 names · Unlock |
| Crane Venture Partners | VC firm | London, United Kingdom | Pre-seed, Seed | Cybersecurity, AI, B2B, SaaS | Portfolio news, Sep 2026 | 4 Nov 2026 | 8 names · Unlock | |
| Theory Ventures | VC firm | Portola Valley, CA | Pre-seed, Seed, Series A, Series B | Cybersecurity, AI, Data, Developer Tools | New deal, Jul 2026 | $450M (SEC Form D, 2024) | 5 Nov 2026 | 8 names · Unlock |
| FLF Accelerate | VC firm | Tampa, FL | Pre-seed, Seed, Series A, Series B | Cybersecurity, AI, Fintech, Media | New fund, Sep 2026 | $5M (SEC Form D, 2026) | 4 Nov 2026 | 8 names · Unlock |
| IQ Capital | VC firm | London, United Kingdom | Pre-seed, Seed, Series A | Cybersecurity, AI, Energy, Healthtech | Portfolio news, Aug 2026 | 4 Nov 2026 | 5 names, firm email · Unlock | |
| Techsquare Ventures | VC firm | Atlanta, GA | Pre-seed, Seed, Series A | Cybersecurity, AI, Data, Logistics | New fund, May 2026 | $49M (SEC Form D, 2025) | 4 Nov 2026 | 8 names, firm email · Unlock |
You are seeing 25 of 90. The full list adds 65 more investors and 425 named decision-makers.
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How these 90 break down
By region
| Region | On this list | Share |
|---|---|---|
| United States | 60 | 67% |
| United Kingdom | 14 | 16% |
| Europe | 16 | 18% |
By US state
| US state | On this list | Share |
|---|---|---|
| California | 23 | 26% |
| New York | 10 | 11% |
| Massachusetts | 5 | 6% |
| Texas | 5 | 6% |
| Florida | 3 | 3% |
| Georgia | 2 | 2% |
| Colorado | 2 | 2% |
By European country
| European country | On this list | Share |
|---|---|---|
| France | 4 | 4% |
| Spain | 3 | 3% |
| Netherlands | 3 | 3% |
| Luxembourg | 2 | 2% |
| Estonia | 2 | 2% |
By type
| Type | On this list | Share |
|---|---|---|
| VC firm | 84 | 93% |
| Accelerator | 2 | 2% |
| SEIS/EIS fund | 2 | 2% |
| Angel network | 2 | 2% |
Method and limits
- Source
- 61 of the 90 rows carry an SEC filing (Form D or Form ADV). All 90 have a website we checked. Filing date and fund size are SEC data where a filing exists. Stage, sector and check size are our research.
- Inclusion rule
- Organizations that back startups. Individuals, buyout funds and firms we found to be inactive are left out. Sector: the firm states cybersecurity as a focus on its own site, or we observed it in the firm's portfolio. Stage: the firm states that it invests at pre-seed.
- Order
- Firms with a published profile come first. Activity score out of 100: recency of the latest fund filing or dated deal (35: full marks within 3 months, then stepping down at 6, 12 and 24 months), share of the observed portfolio in this sector (25; half of that when the sector is stated only), stage focus (15: all of it when pre-seed is the only stage the firm states, split evenly when it states more), size of the fund on file on a log scale (15) and completeness of the public record (10). Stage focus is our research, not an SEC figure. It is a measure of activity and fit, not of quality or returns.
- Last refreshed
- November 2026. Rows on this list were checked between 4 Nov 2026 and 9 Nov 2026.
- Fill rates
- Of 90 rows: stage 90, sector 90, fund size 69, website 90. In the paid file: named decision-makers on 87 rows, firm email on 39, LinkedIn page on 54, check size on 24.
- Corrections
- Email [email protected] or use the update form. We act within 5 working days.
Questions
How many pre-seed cybersecurity investors are there?
We list 90 as of November 2026. 56 of the 90 have a fund filing or a dated deal in the last 12 months.
Which pre-seed cybersecurity investors raised a new fund in the last 12 months?
35 of the 90 have a fund filing dated in the last 12 months. The most recent on this list are Squared Circle Square Two (Oct 2026), Crystal Venture Partners (Oct 2026) and White Rabbit (Oct 2026).
What is the typical fund size of pre-seed cybersecurity investors?
The median fund size on file for this list is $54M, across the 54 firms with a size on an SEC Form D. The fund on file is each firm's main fund, which is not always its newest. The other 36 do not disclose a size there.
How do I contact pre-seed cybersecurity investors?
The paid file holds 425 named decision-makers across 87 of these 90 and a firm email for 39. We publish the address a firm lists itself, never a personal email. Each free row links to a profile with the firm's website.
Where does the data on pre-seed cybersecurity investors come from?
61 of the 90 rows have an SEC filing on file (Form D or Form ADV) and 29 were checked on the firm's own website or an official register. Filing date and fund size come from the filing. Stage, sector and check size are our research. Rows on this list were last checked on 9 Nov 2026 at the latest. The whole file is re-verified twice a year.
Narrower lists
Related lists
Pre-seed AI investors (633)Pre-seed SaaS investors (562)Pre-seed healthtech investors (408)Pre-seed fintech investors (323)Pre-seed deep tech investors (316)Pre-seed climate tech investors (230)Seed cybersecurity investors (205)Pre-seed consumer investors (162)Pre-seed B2B investors (155)Pre-seed biotech investors (148)Pre-seed hardware investors (131)Pre-seed medtech investors (129)Pre-seed energy investors (126)Pre-seed industrial tech investors (124)Series A cybersecurity investors (118)Pre-seed robotics investors (94)Growth-stage cybersecurity investors (92)Pre-seed developer tools investors (83)
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