---
title: "50 Series A Developer Tools Investors in the US (Nov 2026)"
last_updated: "2026-11-06"
rows: "50"
free_rows: "25"
source: "SEC filings"
canonical: "https://theinvestordatabase.com/lists/series-a-developer-tools-investors-us/"
---

# 50 Series A developer tools investors in the US

We list 50 Series A 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 (10), New York (6) and Menlo Park (3).

- 50 investors
- 35 with a fund filing or dated deal in the last 12 months
- $150M median fund size on file (SEC Form D, 41 firms)
- 289 named decision-makers on file

## First 25 of 50 Series A developer tools investors in the US

| Investor | Type | HQ | Stages (our research) | Focus (our research) | Latest fund or deal | Fund size | Checked | Profile |
|---|---|---|---|---|---|---|---|---|
| Craft Ventures | VC firm | San Francisco, CA | Seed, Series A, Growth | Developer Tools, AI, Data, SaaS | New fund, Sep 2026 | $712M (SEC Form D, 2022) | 2026-11-04 | https://theinvestordatabase.com/investors/craft-ventures/ |
| Translink Capital | VC firm | Palo Alto, CA | Seed, Series A, Series B | Developer Tools, AI, Mobility, B2B | New fund, Sep 2026 | $174M (SEC Form D, 2021) | 2026-11-05 | https://theinvestordatabase.com/investors/translink-capital/ |
| 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/ |
| Forgepoint Capital | VC firm | San Mateo, CA | Seed, Series A | Developer Tools, Cybersecurity, Future of Work, AI | Portfolio news, Oct 2026 | $1.2B (SEC Form ADV) | 2026-11-05 | https://theinvestordatabase.com/investors/forgepoint-capital/ |
| Felicis | VC firm | Menlo Park, CA | Seed, Series A | Developer Tools, AI, Healthtech, Cybersecurity | New deal, Oct 2026 | $900M (SEC Form D, 2025) | 2026-11-05 | https://theinvestordatabase.com/investors/felicis/ |
| Prudence. | VC firm | New York, NY | Series A, Series B | Developer Tools, Proptech, AI, Robotics | New fund, Aug 2026 | $150M (SEC Form D, 2022) | 2026-11-04 | https://theinvestordatabase.com/investors/prudence/ |
| Mantis Capital | VC firm | Santa Monica, CA | Seed, Series A | Developer Tools, AI, Fintech, SaaS | New fund, May 2026 | $80M (SEC Form D, 2023) | 2026-11-04 | https://theinvestordatabase.com/investors/mantis-capital/ |
| Evolution | VC firm | New York, NY | Seed, Series A, Series B, Growth | Developer Tools, Cybersecurity, AI, SaaS | New fund, Sep 2026 | $1.2B (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/evolution/ |
| 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/ |
| SignalFire | VC firm | San Francisco, CA | Seed, Series A, Series B, Growth | Developer Tools, AI, Healthtech, B2B | New fund, May 2026 | $357M (SEC Form D, 2021) | 2026-11-04 | https://theinvestordatabase.com/investors/signalfire/ |
| Notable Capital | VC firm | Menlo Park, CA | Series A, Growth | Developer Tools, AI, Cybersecurity, Consumer | New fund, Oct 2026 | $14M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/notable-capital/ |
| Costanoa | VC firm | Palo Alto, CA | Seed, Series A | Developer Tools, AI, Fintech, Cybersecurity | New fund, Sep 2026 | $300M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/costanoa/ |
| 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/ |
| Silverton Partners | VC firm | Austin, TX | Seed, Series A | Developer Tools, AI, Cybersecurity, Fintech | New deal, Sep 2026 | $160M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/silverton-partners/ |
| 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/ |
| Dallas Venture Capital I DVC | VC firm | Irving, TX | Seed, Series A, Series B | Developer Tools, AI, Fintech, Cybersecurity | New deal, Oct 2026 | $75M (SEC Form D, 2021) | 2026-11-05 | https://theinvestordatabase.com/investors/dallas-venture-capital-i-dvc/ |
| 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/ |
| Conviction Partners | VC firm | San Francisco, CA | Seed, Series A | Developer Tools, AI, Edtech, SaaS | New deal, Jun 2026 | $230M (SEC Form D, 2024) | 2026-11-04 | https://theinvestordatabase.com/investors/conviction-partners/ |
| Blackhorn Ventures | VC firm | Denver, CO | Seed, Series A | Developer Tools, AI, Energy, Industrial Tech | New deal, Jul 2026 | $250M (SEC Form D, 2022) | 2026-11-04 | https://theinvestordatabase.com/investors/blackhorn-ventures/ |
| 645 Ventures | VC firm | New York, NY | Series A, Growth | Developer Tools, AI, Fintech, Healthtech | New deal, Sep 2025 | $194M (SEC Form D, 2022) | 2026-11-05 | https://theinvestordatabase.com/investors/645-ventures/ |
| Claritas Signal Partners | VC firm | Nashville, TN | Seed, Series A, Series B, Growth | Developer Tools, Healthtech, AI, Media | New deal, Aug 2026 | $14M (SEC Form D, 2021) | 2026-11-05 | https://theinvestordatabase.com/investors/claritas-signal-partners/ |
| 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/ |
| Homegrown Capital | VC firm | Brookings, SD | Seed, Series A | Developer Tools, AI, Agritech, Marketing Tech | New fund, Mar 2025 | $30M (SEC Form D, 2025) | 2026-11-05 | https://theinvestordatabase.com/investors/homegrown-capital/ |
| S3 Ventures | VC firm | Austin, TX | Seed, Series A, Series B | Developer Tools, Healthtech, Medtech, SaaS | New fund, Sep 2025 | $150M (SEC Form D, 2022) | 2026-11-04 | https://theinvestordatabase.com/investors/s3-ventures/ |

You are seeing 25 of 50. The full list adds 25 more investors and 289 named decision-makers.

Get all 50 investors and 289 named contacts, $49, one-time: https://theinvestordatabase.com/buy/list/series-a-developer-tools-investors-us
This page: https://theinvestordatabase.com/lists/series-a-developer-tools-investors-us/

## Method and limits
- Source: All 50 rows carry an SEC filing (Form D or Form ADV). All 50 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 Series A.
- 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 Series A 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 50 rows: stage 50, sector 50, fund size 46, website 50. In the paid file: named decision-makers on 49 rows, firm email on 17, LinkedIn page on 31, check size on 5.

## Questions
### How many Series A developer tools investors in the US are there?
We list 50 as of November 2026. 35 of the 50 have a fund filing or a dated deal in the last 12 months. The cities with the most are San Francisco (10), New York (6) and Menlo Park (3).

### Which Series A developer tools investors in the US raised a new fund in the last 12 months?
27 of the 50 have a fund filing dated in the last 12 months. The most recent on this list are Foster Ventures (Oct 2026), Earthshot Ventures (Oct 2026) and Notable Capital (Oct 2026).

### What is the typical fund size of Series A developer tools investors in the US?
The median fund size on file for this list is $150M, across the 41 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 9 do not disclose a size there.

### How do I contact Series A developer tools investors in the US?
The paid file holds 289 named decision-makers across 49 of these 50 and a firm email for 17. 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 Series A developer tools investors in the US come from?
All 50 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.