Heartseed

Tokyo, Japan

Heartseed Inc. develops and delivers cardiac regenerative medicine to treat severe heart failure.

Heartseed, based in Tokyo, Japan, has 6 investors on file, among them Angel Bridge, Astellas Venture Management and Keio Innovation Initiative. Its site was last checked 12 Nov 2026: site answers.

heartseed.jp

Investors

6 investors on file

Investor	Evidence	Type
Angel Bridge	Portfolio page	Venture capital
Astellas Venture Management	Portfolio page	Corporate VC
Keio Innovation Initiative	Portfolio page	Venture capital
Medical Incubator Japan	Portfolio page	Venture capital
SMBC Venture Capital	Portfolio page	Venture capital
UTokyo Innovation Platform	Portfolio page	Corporate VC

A company is shown only after its own site answers and carries its name. Sites are checked again on a schedule, because domains lapse and get bought. Round stages and dates come from Fundup AI; investor links come from portfolio pages and rounds; other facts name their source when you point at them. How we grade the data

At a glance

Investors on file: 6
Headquarters: Tokyo, Japan
Site: Answers
Last checked: 12 Nov 2026

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Astroscale2 shared

DEM BioPharma2 shared

Logomix2 shared

Metagen Therapeutics2 shared

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GET /v1/companies/heartseed.jp/investors
GET /v1/companies/heartseed.jp/news

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GET /v1/companies/heartseed.jp
GET /v1/companies/heartseed.jp/news

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