Pre-seed and seed · San Francisco

We write the first check, and we answer quickly.

OnePiece Ventures backs technical founders at the very beginning. Every partner here has built and shipped something, which is why our questions are about the product and not the projections.

$500k to $2.5m

First check size, lead or follow

14 days

From first meeting to a decision

64

Companies funded since 2019

$180m

Under management across three funds

A small startup team working together around one desk
What we do

Generalist by design. We follow founders, not categories.

Most funds meet you at the seed round. We would rather meet you the week you quit.

The earliest money is the hardest to raise and the most useful to receive. That is the part of the market we chose, and we have kept our fund small enough to stay honest about it.

01

We decide in two weeks

Two meetings, one reference call, then a yes or a no with the reasoning attached. You keep building while we make up our mind.

02

We write plain terms

A standard post-money safe or a priced round on documents you can read in ten minutes. No side letters that only make sense to us.

03

We stay useful after the wire

Hiring, pricing, and the awkward conversations. Call us at 9pm when a co-founder wants to leave. That is the actual job.

Where we spend our time

Four areas we know well enough to be useful in week one.

We are generalists with strong opinions in a few places.

  1. 01

    Infrastructure and developer tools

    Software that other engineers depend on. We have shipped it, sold it, and been on call for it, so we can help with the parts that are hard to explain to a board.

  2. 02

    Applied AI

    Products where a model does real work inside a workflow. We look for teams who understand the domain better than the model does.

  3. 03

    Fintech and the operating layer

    Payments, treasury, and the plumbing underneath small businesses. Slow to build, hard to displace once it works.

  4. 04

    Security and trust

    Identity, runtime defense, and the new surface area created by agents. This category grows every time software gets easier to write.

From a founder
“They sent terms on a Thursday and the money landed on Monday. Then they spent six months helping me hire, which was the part I actually needed.”

Elena Duarte, co-founder and CEO, Northwind

Next step

Send us the thing you are building.

A short note and a link beat a polished deck. Every partner reads what comes in, and you will hear back within two business days.