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Stemrim

Biotech & Life Sciences · Osaka, Japan · Founded 2006

A biotech company aiming to develop regeneration-inducing medicines MoreLess

StemRIM Inc. is a biopharmaceutical firm that emerged from Osaka University, concentrating on the development of what it terms "Regeneration-Inducing Medicine™". The company was established on October 30, 2006, with the objective of developing pharmaceuticals based on discoveries made by Professor Katsuto Tamai of Osaka University's Graduate School of Medicine. Professor Tamai, now the company's Founder and Chief Scientific Officer, conceived the core idea after observing the persistent skin regeneration in patients with dystrophic epidermolysis bullosa, a severe genetic disease. This led to the hypothesis that stem cells could be recruited from elsewhere in the body to repair damaged tissue, forming the foundation of the company's research.

The company's business model is that of a research and development-focused biotech, which collaborates with academic institutions like Osaka University to advance its discoveries. StemRIM's primary strategy involves licensing its developed drug candidates to pharmaceutical companies for clinical trials, manufacturing, and sales. In return, StemRIM receives upfront payments, milestone revenues based on development progress, and royalties on sales. A key partnership was established with Shionogi & Co., Ltd. for the development and potential commercialization of its leading drug candidate, Redasemtide.

StemRIM's core product concept, Regeneration-Inducing Medicine™, represents a departure from conventional cell therapies. Instead of extracting, culturing, and re-injecting cells, this approach uses intravenously administered compounds, which are peptides or proteins, to stimulate the patient's own bone marrow-derived mesenchymal stem cells. These activated stem cells then travel through the bloodstream to the site of injury or disease and differentiate into various cell types to promote tissue repair. The leading pipeline candidate, Redasemtide, is a synthetic peptide derived from the HMGB1 protein, engineered to trigger stem cell mobilization without inducing inflammation. This platform technology is being investigated for a wide array of difficult-to-treat conditions, including epidermolysis bullosa, acute ischemic stroke, cardiomyopathy, chronic liver disease, and knee osteoarthritis. Having gone public on the Tokyo Stock Exchange in August 2019, the company directs its capital towards furthering its research and development pipelines.

Keywords: Regeneration-Inducing Medicine, stem cell mobilization, biopharmaceutical, Osaka University, Katsuto Tamai, Redasemtide, HMGB1 peptide, tissue regeneration, drug discovery, clinical trials, Shionogi, epidermolysis bullosa, ischemic stroke, cardiomyopathy, regenerative therapy, peptide therapeutics, drug development, biotech, life sciences, cell-free therapy, tissue repair, chronic disease treatment, rare diseases, pharmaceutical licensing

Company overview

Stemrim company information

The essential company record, classifications and operating signals in one place.

Status
Operational
Founded
2006
Headquarters
Osaka, Japan
Employees
Open positions
None listed
Dealroom signal
55.9
client focusb2bsub industryBioTechnologybusiness modelManufacturingindustryHealthsectorBiotechnologysectorSpinoutsectorDiseasesectorBiotech and PharmasectorHard TechsectorDT and LSsectorscience-based

Valuation & funding

Stemrim funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
IPOExit Aug 2019 $0 Undisclosed
LATE VCEquity / VC Dec 2018 $6.8M $45M M3 · Miyako Capital · SMBC Venture Capital · Daiwa Corporate Investment
EARLY VCEquity / VC Dec 2017 $1.5M $6.2M Mitsubishi UFJ Capital
EARLY VCEquity / VC Nov 2017 $9M $36M SMBC Nikko Securities America · Nippon Venture Capital · SMBC Venture Capital · Kanagawa Science Park
LATE VCEquity / VC Dec 2014 $6.7M $27M Shionogi
SPINOUTOther financing Oct 2006 Kyoto University
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Financials

Revenue, earnings and profit over time

Reported history and available estimates. Estimated years are marked “E”; sparse fields are left blank rather than inferred.

YearRevenueGrowthEBITDAMarginProfitMarginR&D
2026 $0 −$16M −$16M $11M
2025 $0 −$16M −$16M $11M
2024 $0 -100% −$16M −$16M $11M
2023 $18M +10128% $1.5M 8.2% $12M
2022 $177K -98.4% −$15M -8368.3%
2021 $11M -33.3% −$4.2M -38.6%
2020 $16M $2.8M 17.6%
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Growth signals

Stemrim website traffic

Latest recorded traffic for Stemrim is 4.7K monthly website visits, up 51.6% over the last three months.

Latest monthly visits4.7K 3-month web change+51.6%
Monthly website visits68 observations · Oct 2020–Jul 2026
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Comparisons

Stemrim compared with similar companies

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Talent graph

Stemrim's talent

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Team profiled 1 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 1 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

13 investors on Stemrim's cap table

Sourced from Dealroom's funding and investor records.

Series A 9 investors entered at this stage
SMBC Nikko Securities America
Nippon Venture Capital
SMBC Venture Capital
Kanagawa Science Park
M3
Miyako Capital
PF Capital
Kyogin Lease & Capital
Mitsubishi UFJ Capital
Series B+ 2 investors entered at this stage
Shionogi
Daiwa Corporate Investment
Other known 2 additional known investors
Kyoto University
1P1Y

Global footprint

Where Stemrim has talent and traffic

Workforce by country
🇯🇵 Japan · Osaka HQ
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In the news

Latest news about Stemrim

Recent press, funding announcements, and product moves mentioning Stemrim — open to read from the original sources.

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Market sentiment

What the market is saying about Stemrim

An AI-synthesized read of the highest-engagement posts about Stemrim on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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