Japan · Who invested in ChatBook?
ChatBook's investors include Monex Ventures, East Ventures, Voyage Ventures and Mitsui Sumitomo Insurance. Monex Ventures led its latest round.
Japan · Funded startup
Who invested in ChatBook
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.
Funding summaryUpdated 26 Oct 2026
$1.0Mraised across 1 round since 2019, from 1 source
- Latest round
- Round, $1.0MDec 2019
- Led by
- Monex Ventures
- Investors
- 4 (1 led)
The rounds
- Dec 2019Round$1.0M
Monex VenturesLead
East Ventures
Voyage Ventures- Mitsui Sumitomo Insurance
Reported by FinSMEs
Everyone who backed them
Mitsui Sumitomo Insuranceno record of our own yet1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about ChatBook
How much has ChatBook raised?
ChatBook has raised $1.0M across 1 round since 2019.
When did ChatBook last raise?
ChatBook's most recent round was an Undisclosed round of $1.0M in Dec 2019, led by Monex Ventures.
What was ChatBook's biggest round?
Its most recent round, $1.0M in Dec 2019, is also its largest on record.
Who backed ChatBook first?
ChatBook's first round on record, in Dec 2019, was backed by Monex Ventures, East Ventures and Voyage Ventures and 1 others.
What stage is ChatBook at?
ChatBook's latest named round is an Undisclosed round, in Dec 2019.
Where is ChatBook based?
ChatBook is based in Japan.
Who led ChatBook's rounds?
Monex Ventures led the Undisclosed round in 2019.
Companies like ChatBook
In the same sector, and raised in the last eighteen months.
Find investors like these
Search every investor by what they have actually funded, then narrow to your stage and market. Free.