---
title: "32 Seed Marketplace Investors in the US (Nov 2026)"
last_updated: "2026-11-06"
rows: "32"
free_rows: "16"
source: "SEC filings"
canonical: "https://theinvestordatabase.com/lists/seed-marketplace-investors-us/"
---

# 32 seed marketplace investors in the US

We list 32 seed marketplace 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 (8), New York (4) and Atlanta (2).

- 32 investors
- 18 with a fund filing or dated deal in the last 12 months
- $53M median fund size on file (SEC Form D, 22 firms)
- 172 named decision-makers on file

## First 16 of 32 seed marketplace investors in the US

| Investor | Type | HQ | Stages (our research) | Focus (our research) | Latest fund or deal | Fund size | Checked | Profile |
|---|---|---|---|---|---|---|---|---|
| SignalFire | VC firm | San Francisco, CA | Seed, Series A, Series B, Growth | Marketplace, AI, Healthtech, Developer Tools | New fund, May 2026 | $357M (SEC Form D, 2021) | 2026-11-04 | https://theinvestordatabase.com/investors/signalfire/ |
| Twenty Two Ventures | VC firm | San Francisco, CA | Seed | Marketplace, Developer Tools, SaaS, Fintech | New fund, Sep 2026 | $25M (SEC Form D, 2023) | 2026-11-04 | https://theinvestordatabase.com/investors/twenty-two-ventures/ |
| Autotech Ventures | VC firm | Menlo Park, CA | Pre-seed, Seed, Series A, Series B | Marketplace, Mobility, AI, Logistics | New fund, Aug 2026 | $25M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/third-mind/ |
| Techsquare Ventures | VC firm | Atlanta, GA | Pre-seed, Seed, Series A | Marketplace, AI, Data, Cybersecurity | New fund, May 2026 | $49M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/techsquare-ventures/ |
| Ignia | VC firm | Boston, MA | Seed | Marketplace, Fintech, AI, Ecommerce | Portfolio news, May 2026 | $10M (SEC Form D, 2022) | 2026-11-05 | https://theinvestordatabase.com/investors/ignia/ |
| Refinery Ventures | VC firm | Cincinnati, OH | Seed | Marketplace, AI, Healthtech, Future of Work | New deal, Aug 2026 | $50M (SEC Form D, 2024) | 2026-11-05 | https://theinvestordatabase.com/investors/refinery-ventures/ |
| Great Oaks Venture Capital | VC firm | New York, NY | Pre-seed, Seed, Series A | Marketplace, Healthtech, Generalist, SaaS | Portfolio news, Sep 2026 | $20M (SEC Form ADV) | 2026-11-05 | https://theinvestordatabase.com/investors/great-oaks-venture-capital/ |
| Origin Ventures | VC firm | Chicago, IL | Seed, Series A | Marketplace, AI, Future of Work, SaaS | New deal, May 2026 | $130M (SEC Form D, 2023) | 2026-11-05 | https://theinvestordatabase.com/investors/origin-ventures/ |
| Alante Capital | VC firm | Santa Barbara, CA | Seed | Marketplace, Consumer, AI, Logistics | New fund, May 2026 | $50M (SEC Form D, 2024) | 2026-11-04 | https://theinvestordatabase.com/investors/alante-capital/ |
| Uncork Capital | VC firm | San Francisco, CA | Seed | Marketplace, Developer Tools, AI, Fintech | New fund, Jul 2026 | $300M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/uncork-capital/ |
| BIP Ventures | VC firm | Atlanta, GA | Seed, Series A, Series B | Marketplace, Healthtech, Fintech, Developer Tools | New fund, Aug 2026 | $20M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/bip-ventures/ |
| HMC Needles | VC firm | Mill Valley, CA | Seed | Marketplace, Healthtech, SaaS, Developer Tools | New fund, Jun 2025 | $25M (SEC Form D, 2021) | 2026-11-05 | https://theinvestordatabase.com/investors/hmc-needles/ |
| CSC Upshot | VC firm | Palo Alto, CA | Seed | Marketplace, AI, Fintech, Healthtech |  | $216M (SEC Form ADV) | 2026-11-05 | https://theinvestordatabase.com/investors/csc-upshot/ |
| Clearstone Venture Partners | VC firm | Santa Monica, CA | Seed, Series A | Marketplace, Fintech, B2B, SaaS |  | $359M (SEC Form ADV) | 2026-11-05 | https://theinvestordatabase.com/investors/clearstone-venture-partners/ |
| AlleyCorp | VC firm | New York, NY | Pre-seed, Seed, Series A | Marketplace, AI, Fintech, Healthtech | New fund, Jun 2026 | $335M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/alleycorp/ |
| NFX | VC firm | San Francisco, CA | Pre-seed, Seed | Marketplace, Fintech, AI, Crypto and Web3 | New fund, Mar 2026 | $450M (SEC Form D, 2021) | 2026-11-04 | https://theinvestordatabase.com/investors/nfx/ |

You are seeing 16 of 32. The full list adds 16 more investors and 172 named decision-makers.

Get all 32 investors and 172 named contacts, $49, one-time: https://theinvestordatabase.com/buy/list/seed-marketplace-investors-us
This page: https://theinvestordatabase.com/lists/seed-marketplace-investors-us/

## Method and limits
- Source: All 32 rows carry an SEC filing (Form D or Form ADV). All 32 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 marketplaces 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: 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 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 32 rows: stage 32, sector 32, fund size 29, website 32. In the paid file: named decision-makers on 30 rows, firm email on 10, LinkedIn page on 18, check size on 4.

## Questions
### How many seed marketplace investors in the US are there?
We list 32 as of November 2026. 18 of the 32 have a fund filing or a dated deal in the last 12 months. The cities with the most are San Francisco (8), New York (4) and Atlanta (2).

### Which seed marketplace investors in the US raised a new fund in the last 12 months?
12 of the 32 have a fund filing dated in the last 12 months. The most recent on this list are Twenty Two Ventures (Sep 2026), Autotech Ventures (Aug 2026) and BIP Ventures (Aug 2026).

### What is the typical fund size of seed marketplace investors in the US?
The median fund size on file for this list is $53M, across the 22 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 10 do not disclose a size there.

### How do I contact seed marketplace investors in the US?
The paid file holds 172 named decision-makers across 30 of these 32 and a firm email for 10. 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 marketplace investors in the US come from?
All 32 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.