United States · Series B startup

Who invested in Pioneer Square Labs

2 rounds we have observed, with the 13 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Enterprise

Funding summaryUpdated 26 Oct 2026

$28Mraised across 2 rounds since 2015, from 2 sources

$13MSeed$15MSeries B
Latest round
Series B, $15MJan 2018
Step-upi
1.2×
Investors
13
See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

201620172018
$13MSeed$15MSeries B
First round
Seed, $13M
Oct 2015
Biggest round
$15M
Series B · Jan 2018
Between rounds
2.3 years
from the last two

The rounds

  1. Jan 2018
  2. Oct 2015
    Seed$13M

    No investor was named in the report.

    From a historical funding recordSEC filing: $9.5M sold, first sale Sept 2015

Founders and team

From Pioneer Square Labs's own website: 6 on the team.

  • Palvi MehtaOperating Partner / CFO
  • Alex RayPrincipal
  • David ZagerPartner
  • Greg GottesmanManaging Director
  • Matt WangPrincipal
  • Vivek LadsariyaManaging Director

Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

Everyone who backed them

TechstarsVC firm1round
Menlo VenturesVC firm1round
GreycroftVC firm1round
MaveronVC firm1round
MHS CapitalVC firm1round
True.VC firm1round
VulcanInvestment firm1round
VoyagerVC firm1round
Trilogy CapitalPrivate credit1round
Foundry Group/ Bezos Expeditionsno record of our own yet1round
Sinclairno record of our own yet1round

Missing a round, or an investor who was in one? Tell us.

Also claim to have backed them

These 3 firms list Pioneer Square Labs as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

WestRiver GroupVC firmPer its own site
Eden Road Capital, LLCInvestorPer its own site
Vault FundFund of fundsPer its own site

Quick answers about Pioneer Square Labs

Who invested in Pioneer Square Labs?

Pioneer Square Labs's investors include Techstars, Menlo Ventures, Greycroft, Madrona Venture Group and ARCH Venture Partners, and 8 more on record.

How much has Pioneer Square Labs raised?

Pioneer Square Labs has raised $28M across 2 rounds since 2015.

When did Pioneer Square Labs last raise?

Pioneer Square Labs's most recent round was a Series B of $15M in Jan 2018.

What was Pioneer Square Labs's biggest round?

Its most recent round, $15M in Jan 2018, is also its largest on record.

Who backed Pioneer Square Labs first?

Pioneer Square Labs's first round on record, in Jan 2018, was backed by Techstars, Menlo Ventures and Greycroft and 10 others.

What stage is Pioneer Square Labs at?

Pioneer Square Labs's latest named round is a Series B, in Jan 2018.

Where is Pioneer Square Labs based?

Pioneer Square Labs is based in the United States.

Companies like Pioneer Square Labs

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