---
title: "67 Pre-seed Developer Tools Investors in the US (Nov 2026)"
last_updated: "2026-11-06"
rows: "67"
free_rows: "25"
source: "SEC filings"
canonical: "https://theinvestordatabase.com/lists/pre-seed-developer-tools-investors-us/"
---

# 67 pre-seed developer tools investors in the US

We list 67 pre-seed developer tools 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 (17), New York (8) and Menlo Park (3).

- 67 investors
- 42 with a fund filing or dated deal in the last 12 months
- $60M median fund size on file (SEC Form D, 54 firms)
- 294 named decision-makers on file

## First 25 of 67 pre-seed developer tools investors in the US

| Investor | Type | HQ | Stages (our research) | Focus (our research) | Latest fund or deal | Fund size | Checked | Profile |
|---|---|---|---|---|---|---|---|---|
| Madrona | VC firm | Seattle, WA | Pre-seed, Seed, Series A, Series B, Growth | Developer Tools, AI, Biotech, Consumer | New deal, Oct 2026 | $490M (SEC Form D, 2025) | 2026-11-05 | https://theinvestordatabase.com/investors/madrona/ |
| Cybernetix Ventures | VC firm | Boston, MA | Pre-seed, Seed, Series A | Developer Tools, Robotics, Industrial Tech, Logistics | New fund, Aug 2026 | $100M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/cybernetix-ventures/ |
| Joule Ventures | VC firm | New York, NY | Pre-seed, Seed | Developer Tools, AI, Cybersecurity, Fintech | New fund, Jun 2026 | $100M (SEC Form D, 2023) | 2026-11-04 | https://theinvestordatabase.com/investors/joule-ventures/ |
| First Round | VC firm | Philadelphia, PA | Pre-seed, Seed, Series A | Developer Tools, AI, Fintech, Consumer | New fund, Aug 2026 | $500M (SEC Form D, 2022) | 2026-11-04 | https://theinvestordatabase.com/investors/first-round/ |
| Schematic Ventures | VC firm | San Francisco, CA | Pre-seed, Seed | Developer Tools, AI, Industrial Tech, Logistics | New fund, May 2026 | $60M (SEC Form D, 2026) | 2026-11-05 | https://theinvestordatabase.com/investors/schematic-ventures/ |
| Breed | VC firm | Coral Gables, FL | Pre-seed | Developer Tools, Crypto and Web3, Fintech, AI | New fund, Sep 2026 | $14M (SEC Form D, 2024) | 2026-11-04 | https://theinvestordatabase.com/investors/breed/ |
| South Park Commons | Accelerator | San Francisco, CA | Pre-seed, Seed | Developer Tools, AI, Edtech, SaaS | New fund, Oct 2026 | $500M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/south-park-commons/ |
| Glasswing Ventures | VC firm | Boston, MA | Pre-seed | Developer Tools, AI, Future of Work, Cybersecurity | New deal, Jun 2026 | $203M (SEC Form D, 2024) | 2026-11-04 | https://theinvestordatabase.com/investors/glasswing-ventures/ |
| Foster Ventures | VC firm | Foster City, CA | Pre-seed, Seed, Series A | Developer Tools, AI, Future of Work, SaaS | New fund, Oct 2026 | $15M (SEC Form D, 2023) | 2026-11-04 | https://theinvestordatabase.com/investors/foster-ventures/ |
| Kindred Ventures | VC firm | San Francisco, CA | Pre-seed, Seed | Developer Tools, AI, Crypto and Web3, Fintech | New fund, Sep 2026 | $230M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/kindred-ventures/ |
| Basis Set Ventures | VC firm | Menlo Park, CA | Pre-seed | Developer Tools, AI, SaaS | New fund, Jul 2026 | $185M (SEC Form D, 2023) | 2026-11-04 | https://theinvestordatabase.com/investors/set-builders/ |
| Varion Ventures | VC firm | San Francisco, CA | Pre-seed, Seed | Developer Tools, AI, SaaS | New fund, Jul 2026 |  | 2026-11-04 | https://theinvestordatabase.com/investors/varion-ventures/ |
| Flybridge | VC firm | New York, NY | Pre-seed, Seed | Developer Tools, Healthtech, AI, Logistics | New fund, Dec 2025 | $110M (SEC Form D, 2021) | 2026-11-04 | https://theinvestordatabase.com/investors/flybridge/ |
| Emergent Ventures | VC firm | Belmont, CA | Pre-seed, Seed | Developer Tools, AI, B2B, Data | New deal, Apr 2026 | $58M (SEC Form D, 2024) | 2026-11-04 | https://theinvestordatabase.com/investors/emergent-ventures/ |
| AIX Ventures | VC firm | Newark, CA | Pre-seed, Seed, Series A | Developer Tools, AI, Healthtech, Consumer | New fund, Aug 2026 | $250M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/aix-ventures/ |
| The General Partnership | VC firm | San Francisco, CA | Pre-seed, Seed | Developer Tools, Future of Work, AI, Fintech | New deal, Aug 2026 | $15M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/founder-capital/ |
| Earthshot Ventures | VC firm | San Francisco, CA | Pre-seed, Seed, Series A, Series B | Developer Tools, AI, Energy, Industrial Tech | New fund, Oct 2026 | $77M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/earthshot-ventures/ |
| Afore Capital | VC firm | San Francisco, CA | Pre-seed | Developer Tools, AI, Fintech, Healthtech | New fund, Mar 2026 | $230M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/afore-capital/ |
| Decibel | VC firm | Menlo Park, CA | Pre-seed | Developer Tools, AI, Cybersecurity, SaaS | New fund, Apr 2026 | $317M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/decibel/ |
| boldstart ventures | VC firm | New York, NY | Pre-seed, Seed | Developer Tools, AI, Cybersecurity, Robotics | New deal, Jun 2026 | $250M (SEC Form D, 2024) | 2026-11-05 | https://theinvestordatabase.com/investors/boldstart-ventures/ |
| SaaS Ventures | VC firm | Coral Gables, FL | Pre-seed, Seed, Series A, Series B, Growth | Developer Tools, B2B, AI, Cybersecurity | New fund, Sep 2026 | $50M (SEC Form D, 2021) | 2026-11-04 | https://theinvestordatabase.com/investors/saas-ventures/ |
| Lorimer Ventures | VC firm | New York, NY | Pre-seed | Developer Tools, Fintech, AI, Healthtech | New fund, May 2026 | $2M (SEC Form D, 2022) | 2026-11-04 | https://theinvestordatabase.com/investors/lorimer-ventures/ |
| Untapped Ventures | VC firm | Glendale, CA | Pre-seed, Seed | Developer Tools, AI, B2B, SaaS | New fund, Jun 2026 | $50M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/untapped-ventures/ |
| Leonis Capital | VC firm | San Francisco, CA | Pre-seed, Seed | Developer Tools, AI, SaaS, Data | New fund, Oct 2026 |  | 2026-11-04 | https://theinvestordatabase.com/investors/leonis-capital/ |
| Boston Seed | VC firm | Wellesley Hills, MA | Pre-seed, Seed | Developer Tools, AI, Fintech, Gaming | New deal, Jul 2025 | $60M (SEC Form D, 2024) | 2026-11-05 | https://theinvestordatabase.com/investors/boston-seed/ |

You are seeing 25 of 67. The full list adds 42 more investors and 294 named decision-makers.

Get all 67 investors and 294 named contacts, $49, one-time: https://theinvestordatabase.com/buy/list/pre-seed-developer-tools-investors-us
This page: https://theinvestordatabase.com/lists/pre-seed-developer-tools-investors-us/

## Method and limits
- Source: All 67 rows carry an SEC filing (Form D or Form ADV). All 67 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 developer tools 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 67 rows: stage 67, sector 67, fund size 59, website 67. In the paid file: named decision-makers on 67 rows, firm email on 16, LinkedIn page on 41, check size on 6.

## Questions
### How many pre-seed developer tools investors in the US are there?
We list 67 as of November 2026. 42 of the 67 have a fund filing or a dated deal in the last 12 months. The cities with the most are San Francisco (17), New York (8) and Menlo Park (3).

### Which pre-seed developer tools investors in the US raised a new fund in the last 12 months?
33 of the 67 have a fund filing dated in the last 12 months. The most recent on this list are Foster Ventures (Oct 2026), Leonis Capital (Oct 2026) and Earthshot Ventures (Oct 2026).

### What is the typical fund size of pre-seed developer tools investors in the US?
The median fund size on file for this list is $60M, 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 13 do not disclose a size there.

### How do I contact pre-seed developer tools investors in the US?
The paid file holds 294 named decision-makers across 67 of these 67 and a firm email for 16. 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 developer tools investors in the US come from?
All 67 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.