Japan · Venture startup

Who invested in Piazza

One round we have observed, with the 4 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Advertising & Adtech

Raised 9 months ago

Funding summaryUpdated 26 Oct 2026

Undisclosedraised across 1 round since 2026, from 1 source

Latest round
VentureFeb 2026
Investors
4
See who backed them

The rounds

  1. Feb 2026
    VentureAmount undisclosed

    Source recorded

Everyone who backed them

Mizuho CapitalVC firm1round
IVCVC firm1round
ANOBAKAVC firm1round
Mercuri VCVC firm1round

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

Quick answers about Piazza

Who invested in Piazza?

Piazza's investors include Mizuho Capital, IVC, ANOBAKA and Mercuri VC.

How much has Piazza raised?

Piazza has raised 1 round since 2026, none with a disclosed amount.

When did Piazza last raise?

Piazza's most recent round was a Venture in Feb 2026.

Who backed Piazza first?

Piazza's first round on record, in Feb 2026, was backed by Mizuho Capital, IVC and ANOBAKA and 1 others.

What stage is Piazza at?

Piazza's latest named round is a Venture, in Feb 2026.

Where is Piazza based?

Piazza is based in Japan.

Companies like Piazza

In the same sector, and raised in the last eighteen months.

SOKAI$75M · May 2026Porty$953K · Apr 2026Japan DX$1.0M · Mar 2026THINGMEDIA$1.3M · Dec 2025Canly$13M · Nov 2025QREATION$6.6M · Oct 2025

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