---
title: "403 Pre-seed AI Investors in the US (Nov 2026)"
last_updated: "2026-11-06"
rows: "403"
free_rows: "25"
source: "SEC filings"
canonical: "https://theinvestordatabase.com/lists/pre-seed-ai-investors-us/"
---

# 403 pre-seed AI investors in the US

We list 403 pre-seed AI investors in the US as of November 2026: each has an SEC filing on file, and the list was last checked on 6 Nov 2026. The cities with the most head offices on this list are San Francisco (54), New York (49) and Palo Alto (23).

- 403 investors
- 236 with a fund filing or dated deal in the last 12 months
- $50M median fund size on file (SEC Form D, 326 firms)
- 1,895 named decision-makers on file

## First 25 of 403 pre-seed AI investors in the US

| Investor | Type | HQ | Stages (our research) | Focus (our research) | Latest fund or deal | Fund size | Checked | Profile |
|---|---|---|---|---|---|---|---|---|
| Tectonic Ventures | VC firm | Newton, MA | Pre-seed | AI, B2B, SaaS | New fund, Aug 2026 | $87M (SEC Form D, 2021) | 2026-11-04 | https://theinvestordatabase.com/investors/tectonic-ventures/ |
| 1517 Fund | VC firm | Telluride, CO | Pre-seed | AI, Edtech, Deep Tech, SaaS | New fund, Sep 2026 | $43M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/1517-fund/ |
| Incisive VC | VC firm | Seattle, WA | Pre-seed | AI, Media, B2B, SaaS | New fund, Sep 2026 | $25M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/incisive-vc/ |
| Redbud VC | VC firm | Columbia, MO | Pre-seed | AI, Healthtech, Agritech, Climate Tech | New fund, Sep 2026 | $25M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/redbud-vc/ |
| True Ventures | VC firm | Palo Alto, CA | Pre-seed, Seed | AI, Fintech, Deep Tech, Consumer | New fund, Sep 2026 | $800M (SEC Form D, 2022) | 2026-11-04 | https://theinvestordatabase.com/investors/true-ventures/ |
| New Stack | VC firm | Chicago, IL | Pre-seed, Seed | AI, Fintech, Healthtech, Industrial Tech | New fund, Sep 2026 | $125M (SEC Form D, 2024) | 2026-11-04 | https://theinvestordatabase.com/investors/new-stack/ |
| Transpose Platform | VC firm | Houston, TX | Pre-seed | AI, Biotech, Generalist | New fund, Sep 2026 | $500M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/transpose-platform/ |
| NextView Ventures | VC firm | Boston, MA | Pre-seed, Seed | AI, Marketing Tech, Robotics, Industrial Tech | New deal, Oct 2026 | $135M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/nextview-ventures/ |
| Silent Ventures | VC firm | Dallas, TX | Pre-seed | AI, Defense Tech, Logistics, Space | New fund, Jul 2026 | $85M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/silent-ventures/ |
| Inflection | VC firm | Framingham, MA | Pre-seed, Seed | AI, Space, Defense Tech, Crypto and Web3 | New fund, Sep 2026 | $50M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/inflection/ |
| Avid Ventures | VC firm | New York, NY | Pre-seed | AI, Fintech, Healthtech, SaaS | Portfolio news, Oct 2026 | $75M (SEC Form D, 2021) | 2026-11-05 | https://theinvestordatabase.com/investors/avid-ventures/ |
| Khosla Ventures | VC firm | Menlo Park, CA | Pre-seed, Seed, Series A, Growth | AI, Consumer, B2B, Fintech | New fund, Aug 2026 | $1.9B (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/khosla-ventures/ |
| Slauson & Co | VC firm | Los Angeles, CA | Pre-seed, Seed | AI, Healthtech, Fintech, Logistics | New deal, Sep 2026 | $100M (SEC Form D, 2023) | 2026-11-05 | https://theinvestordatabase.com/investors/slauson-co/ |
| M25 | VC firm | Chicago, IL | Pre-seed, Seed | AI, Healthtech, Generalist, Fintech | New deal, Sep 2026 | $50M (SEC Form D, 2022) | 2026-11-05 | https://theinvestordatabase.com/investors/m25/ |
| Sazze Partners | VC firm | San Jose, CA | Pre-seed | AI, Media, SaaS, Consumer | New fund, Jun 2026 | $79M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/sazze-partners/ |
| Kleiner Perkins | VC firm | Menlo Park, CA | Pre-seed, Seed, Series A, Series B, Growth | AI, Fintech, Proptech, Mobility | New fund, Aug 2026 | $995M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/kleiner-perkins/ |
| LightX Capital | VC firm | Chicago, IL | Pre-seed | AI, Robotics, Healthtech, SaaS | New fund, Nov 2026 |  | 2026-11-04 | https://theinvestordatabase.com/investors/lightx-capital/ |
| Alliance Venture Capital | VC firm | Morton Grove, IL | Pre-seed, Seed | AI, Healthtech, SaaS | New deal, Oct 2026 | $40M (SEC Form D, 2024) | 2026-11-05 | https://theinvestordatabase.com/investors/alliance-venture-capital/ |
| Wonder Ventures | VC firm | Malibu, CA | Pre-seed | AI, Fintech, B2B, Consumer | New fund, Jul 2026 | $55M (SEC Form D, 2022) | 2026-11-04 | https://theinvestordatabase.com/investors/wonder-ventures/ |
| Bison Ventures | VC firm | San Francisco, CA | Pre-seed, Seed, Series A, Series B | AI, Healthtech, Energy, Biotech | New fund, Oct 2026 | $160M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/bison-ventures/ |
| Volt Capital | VC firm | New York, NY | Pre-seed, Seed | AI | New fund, Aug 2026 | $30M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/volt-capital/ |
| Madrona | VC firm | Seattle, WA | Pre-seed, Seed, Series A, Series B, Growth | AI, Biotech, Consumer, Deep Tech | New deal, Oct 2026 | $490M (SEC Form D, 2025) | 2026-11-05 | https://theinvestordatabase.com/investors/madrona/ |
| Motive Venture | VC firm | New York, NY | Pre-seed, Seed, Series A, Growth | AI, Fintech, Data, Future of Work | New fund, Aug 2026 | $200M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/motive-venture/ |
| First In Ventures | VC firm | Hobe Sound, FL | Pre-seed, Seed | AI, Biotech, Healthtech, Climate Tech | New fund, Sep 2026 | $22M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/first-in-ventures/ |
| Leo Capital | VC firm | San Francisco, CA | Pre-seed, Seed | AI, Fintech, Insurtech, SaaS | New deal, Oct 2026 | $20M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/leo-capital/ |

You are seeing 25 of 403. The full list adds 378 more investors and 1,895 named decision-makers.

Get all 403 investors and 1,895 named contacts, $197, one-time: https://theinvestordatabase.com/buy/us
This page: https://theinvestordatabase.com/lists/pre-seed-ai-investors-us/

## Method and limits
- Source: All 403 rows carry an SEC filing (Form D or Form ADV). All 403 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 AI 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: Activity score out of 100: recency of the latest fund filing or dated deal (30: full marks within 3 months, then stepping down at 6, 12 and 24 months), share of the observed portfolio in this sector (20; 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), stated focus on the US (15: full marks when the firm names the US as where it invests, half when it says global), size of the fund on file on a log scale (12) and completeness of the public record (8). Stage and regional focus are our research, not an SEC figure. It is a measure of activity and fit, not of quality or returns.
- Fill rates: Of 403 rows: stage 403, sector 403, fund size 357, website 403. In the paid file: named decision-makers on 398 rows, firm email on 129, LinkedIn page on 220, check size on 56.

## Questions
### How many pre-seed AI investors in the US are there?
We list 403 as of November 2026. 236 of the 403 have a fund filing or a dated deal in the last 12 months. The cities with the most are San Francisco (54), New York (49) and Palo Alto (23).

### Which pre-seed AI investors in the US raised a new fund in the last 12 months?
197 of the 403 have a fund filing dated in the last 12 months. The most recent on this list are Quiet Capital (Nov 2026), LightX Capital (Nov 2026) and 25Madison Ventures (Oct 2026).

### What is the typical fund size of pre-seed AI investors in the US?
The median fund size on file for this list is $50M, across the 326 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 77 do not disclose a size there.

### How do I contact pre-seed AI investors in the US?
The paid file holds 1,895 named decision-makers across 398 of these 403 and a firm email for 129. 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 AI investors in the US come from?
All 403 rows have an SEC filing on file (Form D or Form ADV). 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 6 Nov 2026 at the latest. The whole file is re-verified twice a year.