555 seed deep tech investors
We list 555 seed deep tech investors as of November 2026: 207 have an SEC filing on file and 348 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 (95), New York (18) and Massachusetts (13).
Top 5 seed deep tech 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 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.
Qubits Ventures
Type: VC firm · HQ: Pasadena, CA · Stages: Seed · Focus: Deep Tech, Quantum, AI · Latest activity: New fund, Oct 2026 · Fund size on file: $50M (SEC Form D, 2025)
Latest fund filing dated Oct 2026; $50M fund on file (SEC Form D, 2025); 73% of its observed portfolio is deep tech; backs seed; 8 named decision-makers on file.
Seraphim Space
Type: VC firm · HQ: London, United Kingdom · Stages: Seed, Series A, Growth · Focus: Deep Tech, Space, Mobility, Defense Tech · Latest activity: New fund, Oct 2026 · Fund size or assets: $1.0B (own site)
Latest fund filing dated Oct 2026; $1.0B on file (own site); 81% of its observed portfolio is deep tech; backs seed, Series A, growth-stage; 8 named decision-makers on file.
RPM Ventures
Type: VC firm · HQ: Ann Arbor, MI · Stages: Seed · Focus: Deep Tech, Space, Future of Work, Healthtech · Latest activity: New fund, Sep 2026 · Fund size on file: $165M (SEC Form D, 2026)
Latest fund filing dated Sep 2026; $165M fund on file (SEC Form D, 2026); 36% of its observed portfolio is deep tech; backs seed; 3 named decision-makers on file.
Cambium Capital
Type: VC firm · HQ: Highland, MD · Stages: Seed · Focus: Deep Tech, AI, Semiconductor, Cybersecurity · Latest activity: New deal, Sep 2026 · Fund size on file: $74M (SEC Form D, 2021)
Dated new deal in Sep 2026; $74M fund on file (SEC Form D, 2021); 33% of its observed portfolio is deep tech; backs seed; 6 named decision-makers on file.
IceNine Capital
Type: VC firm · HQ: San Diego, CA · Stages: Seed · Focus: Deep Tech, Space, Defense Tech, Industrial Tech · Latest activity: New fund, Oct 2026
Latest fund filing dated Oct 2026; 60% of its observed portfolio is deep tech; backs seed; 5 named decision-makers on file.
First 25 of 555 seed deep tech investors
| Investor | Type | HQ | Stagesour research | Focusour research | Latest fund or deal | Fund sizeas filed or stated | Checked | Contacts |
|---|---|---|---|---|---|---|---|---|
| Qubits Ventures | VC firm | Pasadena, CA | Seed | Deep Tech, Quantum, AI | New fund, Oct 2026 | $50M (SEC Form D, 2025) | 4 Nov 2026 | 8 names, firm email · Unlock |
| Seraphim Space | VC firm | London, United Kingdom | Seed, Series A, Growth | Deep Tech, Space, Mobility, Defense Tech | New fund, Oct 2026 | $1.0B (own site) | 4 Nov 2026 | 8 names · Unlock |
| RPM Ventures | VC firm | Ann Arbor, MI | Seed | Deep Tech, Space, Future of Work, Healthtech | New fund, Sep 2026 | $165M (SEC Form D, 2026) | 4 Nov 2026 | 3 names · Unlock |
| Cambium Capital | VC firm | Highland, MD | Seed | Deep Tech, AI, Semiconductor, Cybersecurity | New deal, Sep 2026 | $74M (SEC Form D, 2021) | 4 Nov 2026 | 6 names, firm email · Unlock |
| IceNine Capital | VC firm | San Diego, CA | Seed | Deep Tech, Space, Defense Tech, Industrial Tech | New fund, Oct 2026 | 4 Nov 2026 | 5 names, firm email · Unlock | |
| Aurelia Foundry | VC firm | Denver, CO | Seed, Series A | Deep Tech, Space, Mobility, Climate Tech | New fund, Oct 2026 | $75M (SEC Form D, 2023) | 4 Nov 2026 | 5 names, firm email · Unlock |
| Side Door Michigan | VC firm | Fernandina Beach, FL | Seed | Deep Tech, Space, Mobility, Crypto and Web3 | New fund, Sep 2026 | $30M (SEC Form D, 2023) | 4 Nov 2026 | 8 names · Unlock |
| Lavrock Ventures | VC firm | Mclean, VA | Seed | Deep Tech, Cybersecurity, Defense Tech, Space | New deal, Aug 2026 | $125M (SEC Form D, 2025) | 5 Nov 2026 | 8 names, firm email · Unlock |
| Serra Capital | VC firm | Champaign, IL | Seed | Deep Tech, Agritech, Food and Beverage | New fund, Oct 2026 | $150M (SEC Form D, 2024) | 4 Nov 2026 | 8 names, firm email · Unlock |
| Light Ray Ventures | VC firm | New York, NY | Seed | Deep Tech, Robotics, Industrial Tech, Climate Tech | New deal, Oct 2026 | $21M (SEC Form D, 2023) | 5 Nov 2026 | 3 names, firm email · Unlock |
| Julian Capital: Deeptech Seed Fund | VC firm | San Francisco, CA | Pre-seed, Seed | Deep Tech, Energy, Healthtech, Climate Tech | New fund, Aug 2026 | $51M (SEC Form D, 2026) | 4 Nov 2026 | 5 names · Unlock |
| Safar Partners | VC firm | Cambridge, MA | Seed | Deep Tech, Healthtech, Industrial Tech, Biotech | New deal, Aug 2026 | $300M (SEC Form D, 2023) | 4 Nov 2026 | 3 names, firm email · Unlock |
| Timescale Ventures | VC firm | Marblehead, MA | Pre-seed, Seed | Deep Tech, Energy, Industrial Tech, AI | New fund, Sep 2026 | $50M (SEC Form D, 2025) | 4 Nov 2026 | 2 names, firm email · Unlock |
| Notion Capital | VC firm | London, United Kingdom | Seed, Series A | Deep Tech, SaaS, B2B, AI | New deal, Oct 2026 | $2.0B (own site) | 4 Nov 2026 | 8 names · Unlock |
| Soma Capital | VC firm | Miami Beach, FL | Seed | Deep Tech, AI, Fintech, SaaS | New fund, Oct 2026 | $200M (SEC Form D, 2023) | 4 Nov 2026 | 8 names · Unlock |
| SISTAFUND | VC firm | Paris, France | Seed | Deep Tech, Healthtech, Climate Tech, AI | Portfolio news, Sep 2026 | €70M (own site) | 7 Nov 2026 | firm email · Unlock |
| NSV | VC firm | Greenwich, CT | Seed, Late stage | Deep Tech, Healthtech, AI, Semiconductor | Portfolio news, Oct 2026 | $990M (SEC Form ADV) | 5 Nov 2026 | 5 names · Unlock |
| Talenta Gestión | Fund manager | Barcelona, Spain | Pre-seed, Seed | Deep Tech, SaaS, B2B, Consumer | New fund, Oct 2026 | €1.2B (own site) | 9 Nov 2026 | 4 names, firm email · Unlock |
| Cambridge Angels | Angel network | Cambridge, United Kingdom | Seed | Deep Tech, Healthtech, Biotech, AI | Portfolio news, Oct 2026 | £400M (own site) | 4 Nov 2026 | LinkedIn page · Unlock |
| ARCH Venture Partners | VC firm | Chicago, IL | Pre-seed, Seed | Deep Tech, Biotech, Healthtech | New fund, Aug 2026 | $3.0B (SEC Form D, 2024) | 4 Nov 2026 | 8 names · Unlock |
| Reveille | VC firm | New York, NY | Seed | Deep Tech, Defense Tech, Energy, Space | New fund, Nov 2026 | $40M (SEC Form D, 2025) | 4 Nov 2026 | 3 names, firm email · Unlock |
| UVC Partners | VC firm | Garching, Germany | Pre-seed, Seed, Series A | Deep Tech, Climate Tech, Mobility, AI | New deal, Sep 2026 | €800M (own site) | 7 Nov 2026 | 4 names, firm email · Unlock |
| Kindred Ventures | VC firm | San Francisco, CA | Pre-seed, Seed | Deep Tech, AI, Crypto and Web3, Fintech | New fund, Sep 2026 | $230M (SEC Form D, 2025) | 4 Nov 2026 | 8 names · Unlock |
| Hallstone Ventures | VC firm | Hollywood, CA | Seed | Deep Tech, Space, Robotics, Media | New fund, Oct 2026 | $11M (SEC Form D, 2025) | 4 Nov 2026 | 5 names · Unlock |
| PXN Ventures | Fund manager | Manchester, United Kingdom | Pre-seed, Seed, Series A, Growth | Deep Tech, Generalist, SaaS, Healthtech | Portfolio news, Nov 2026 | £760M (own site) | 4 Nov 2026 | 8 names, firm email · Unlock |
You are seeing 25 of 555. The full list adds 530 more investors and 2,280 named decision-makers.
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How these 555 break down
By region
| Region | On this list | Share |
|---|---|---|
| United States | 205 | 37% |
| United Kingdom | 108 | 19% |
| Europe | 236 | 43% |
By US state
| US state | On this list | Share |
|---|---|---|
| California | 95 | 17% |
| New York | 18 | 3% |
| Massachusetts | 13 | 2% |
| Florida | 12 | 2% |
| Texas | 10 | 2% |
| Illinois | 7 | 1% |
| Colorado | 5 | 1% |
| Connecticut | 4 | 1% |
| Michigan | 3 | 1% |
| Virginia | 3 | 1% |
By European country
| European country | On this list | Share |
|---|---|---|
| France | 53 | 10% |
| Germany | 39 | 7% |
| Netherlands | 26 | 5% |
| Spain | 20 | 4% |
| Austria | 14 | 3% |
| Italy | 14 | 3% |
| Sweden | 12 | 2% |
| Norway | 10 | 2% |
By type
| Type | On this list | Share |
|---|---|---|
| VC firm | 412 | 74% |
| Angel network | 41 | 7% |
| Government or university fund | 35 | 6% |
| Corporate VC | 18 | 3% |
| Fund manager | 15 | 3% |
| SEIS/EIS fund | 14 | 3% |
Method and limits
- Source
- 207 of the 555 rows carry an SEC filing (Form D or Form ADV). All 555 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 deep tech as a focus on its own site, or we observed it in the firm's portfolio. Stage: the firm states that it invests at 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 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 555 rows: stage 555, sector 555, fund size 288, website 555. In the paid file: named decision-makers on 474 rows, firm email on 293, LinkedIn page on 376, check size on 184.
- Corrections
- Email [email protected] or use the update form. We act within 5 working days.
Questions
How many seed deep tech investors are there?
We list 555 as of November 2026. 244 of the 555 have a fund filing or a dated deal in the last 12 months.
Which seed deep tech investors raised a new fund in the last 12 months?
102 of the 555 have a fund filing dated in the last 12 months. The most recent on this list are Reveille (Nov 2026), Future Ventures (Oct 2026) and Pear Ventures (Oct 2026).
What is the typical fund size of seed deep tech investors?
The median fund size on file for this list is $62M, across the 152 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 403 do not disclose a size there.
How do I contact seed deep tech investors?
The paid file holds 2,280 named decision-makers across 474 of these 555 and a firm email for 293. 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 seed deep tech investors come from?
207 of the 555 rows have an SEC filing on file (Form D or Form ADV) and 348 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.
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