Heartseed Inc.

Heartseed Inc. company information, Employees & Contact Information

Updated June 2026

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Heartseed Inc. is a Biotechnology Research company and founded in 2015. It has approximately 17 employees on record. Contact data was last refreshed in June 2026. Find Heartseed Inc.'s verified employee emails, phone numbers, headquarters address, and key decision makers below.

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Heartseed Inc., a pioneering clinical-stage biotech company based in Tokyo, is at the forefront of developing groundbreaking treatments for severe heart conditions. Our cutting-edge approach involves utilizing stem cells to craft cardiomyocyte spheroids—tiny heart cell clusters. These clusters are surgically transplanted into the heart to enhance its functionality.

Company Details

Employees
17
Founded
2015
Address
1-2-3 Shibaura, Minato-Ku,tokyo 105-0023,japan
Email
CO****@****SEED.JP
Industry
Biotechnology Research
NAICS
Research and Development in Biotechnology (except Nanobiotechnology)
HQ
Minato-ku, Tokyo
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News

Novo Withdraws from $598M Heartseed Partnership; Pursues Short-Term Profit Over iPSC Potential - BioInformant

Novo Withdraws from $598M Heartseed Partnership; Pursues Short-Term Profit Over iPSC Potential BioInformant

Novo dumps cell therapy partner Heartseed, calling off $598M collab amid restructuring - Fierce Biotech

Novo dumps cell therapy partner Heartseed, calling off $598M collab amid restructuring Fierce Biotech

Novo retreats from heart failure cell therapy collaboration with Heartseed - FirstWord Pharma

Novo retreats from heart failure cell therapy collaboration with Heartseed FirstWord Pharma

Novo Nordisk turns back on Heartseed partnership - The Pharma Letter

Novo Nordisk turns back on Heartseed partnership The Pharma Letter

Novo Breaks $598M Heartseed Pact Amid ‘Decisive Restructuring’ by New CEO - BioSpace

Novo Breaks $598M Heartseed Pact Amid ‘Decisive Restructuring’ by New CEO BioSpace

Heartseed Inc. Ends Partnership with Novo Nordisk, Shifts Focus to Japan - TipRanks

Heartseed Inc. Ends Partnership with Novo Nordisk, Shifts Focus to Japan TipRanks

Novo ends Heartseed deal for iPS cell-derived cardiomyocytes - BioWorld MedTech

Novo ends Heartseed deal for iPS cell-derived cardiomyocytes BioWorld MedTech

Heartseed raises 2 billion JPY in series D funding to accelerate development of iPSC-derived stem cell therapy for heart failure - Business Wire

Heartseed raises 2 billion JPY in series D funding to accelerate development of iPSC-derived stem cell therapy for heart failure Business Wire

Heartseed and Novo Nordisk dose first patient in heart failure cell therapy study - Labiotech.eu

Heartseed and Novo Nordisk dose first patient in heart failure cell therapy study Labiotech.eu

Albumedix and Heartseed announce Recombumin® as a critical excipient in the manufacture of Heartseed's HS-001 investigational cell therapy as its first in-human trial commences - PR Newswire

Albumedix and Heartseed announce Recombumin® as a critical excipient in the manufacture of Heartseed's HS-001 investigational cell therapy as its first in-human trial commences PR Newswire

Cell therapy for cardiac conditions: an interview with Takehiko Kaneko - RegMedNet

Cell therapy for cardiac conditions: an interview with Takehiko Kaneko RegMedNet

Novo Nordisk partners with Heartseed on heart failure cell therapy - PMLiVE

Novo Nordisk partners with Heartseed on heart failure cell therapy PMLiVE

Heartseed Succeeds in Stable Production of High Purity Cardiomyocytes Using iPS Cells from I Peace, A Major Step Forward in Advancing Autologous Cardiac Regenerative Medicine - Business Wire

Heartseed Succeeds in Stable Production of High Purity Cardiomyocytes Using iPS Cells from I Peace, A Major Step Forward in Advancing Autologous Cardiac Regenerative Medicine Business Wire

Heartseed Regains Rights After Novo Nordisk Partnership Ends - TipRanks

Heartseed Regains Rights After Novo Nordisk Partnership Ends TipRanks

Heartseed Enters into induced Pluripotent Stem Cell Purification Patent License Agreement for Commercialization of Cell Therapy - BioSpace

Heartseed Enters into induced Pluripotent Stem Cell Purification Patent License Agreement for Commercialization of Cell Therapy BioSpace

Mutsuki Takano Was Appointed as CFO at Heartseed - Business Wire

Mutsuki Takano Was Appointed as CFO at Heartseed Business Wire

Heartseed, Inc. Ends Partnership with Novo Nordisk, Maintains Development Plans - TipRanks

Heartseed, Inc. Ends Partnership with Novo Nordisk, Maintains Development Plans TipRanks

Heartseed Inc. Advances Cardiac Therapy with New Clinical Trial Submission - TipRanks

Heartseed Inc. Advances Cardiac Therapy with New Clinical Trial Submission TipRanks

Heartseed Inc. Addresses Partnership Termination and Future Strategies - TipRanks

Heartseed Inc. Addresses Partnership Termination and Future Strategies TipRanks

This company is mending broken hearts - CNN

This company is mending broken hearts CNN

Heartseed collects new venture round after $598M heart failure stem cell deal with Novo Nordisk - Fierce Biotech

Heartseed collects new venture round after $598M heart failure stem cell deal with Novo Nordisk Fierce Biotech

Heartseed - The Pharma Letter

Heartseed The Pharma Letter

Tokyo's Heartseed reaps $26M to test its stem cell injections for heart failure - Fierce Biotech

Tokyo's Heartseed reaps $26M to test its stem cell injections for heart failure Fierce Biotech

Heart hope for Heartseed/Novo Nordisk HS-001 cell therapy - pharmaphorum

Heart hope for Heartseed/Novo Nordisk HS-001 cell therapy pharmaphorum

Stem cell-based therapy for heart failure licensed in global collaboration - Longevity.Technology

Stem cell-based therapy for heart failure licensed in global collaboration Longevity.Technology

Novo Nordisk streamlines pipeline, ends Japanese partnership - medwatch.com

Novo Nordisk streamlines pipeline, ends Japanese partnership medwatch.com

Japan’s ten hottest biotech companies in healthcare - Labiotech.eu

Japan’s ten hottest biotech companies in healthcare Labiotech.eu

Heartseed Raises $26M in Series B Funding to Accelerate Development of iPSC-derived Regenerative Medicine for Heart Failure - BioSpace

Heartseed Raises $26M in Series B Funding to Accelerate Development of iPSC-derived Regenerative Medicine for Heart Failure BioSpace

World's first iPS cell regenerative treatment for heart failure tested in Japan - 日本テレビ

World's first iPS cell regenerative treatment for heart failure tested in Japan 日本テレビ

Heartseed Gardens: Carving a New Path - Wrightsville Beach Magazine

Heartseed Gardens: Carving a New Path Wrightsville Beach Magazine

New partnership may pave the way for first Novo Nordisk stem cell treatment - medwatch.com

New partnership may pave the way for first Novo Nordisk stem cell treatment medwatch.com

Advancing Japan’s Biotech Ecosystem: Current Initiatives and Future Outlook - BioSpectrum Asia

Advancing Japan’s Biotech Ecosystem: Current Initiatives and Future Outlook BioSpectrum Asia

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