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Rakuten Medical

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Developing precision cancer therapies using an investigational photoimmunotherapy platform to improve targeted treatment outcomes

San Diego, United StatesFounded 2010Biotech & Life Sciences
Valuation $500M–1B Last recorded · 2026
Headcount 100–500 Current team size
Total funding $500M–1B Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Rakuten Medical and the history behind them.

About Rakuten Medical

Rakuten Medical is a biotechnology startup that operates in the healthcare industry, specifically in the field of cancer treatment. The company is developing a unique platform called Alluminox™, which is based on a cancer therapy known as photoimmunotherapy. This therapy was originally developed by Dr. Hisataka Kobayashi and his team from the National Cancer Institute in the United States.

The Alluminox™ platform is an investigational technology that includes a drug, a device, and other related components. Rakuten Medical's primary goal is to bring to market drugs and devices that treat various types of cancer using this platform. The company's mission is to provide an alternative solution in the fight against cancer, with the ultimate goal of conquering the disease.

Rakuten Medical aims to build a sustainable healthcare ecosystem that offers patients, regardless of their nationality or wealth, access to better cancer treatments. The company is committed to continuous innovation in order to develop and commercialize pioneering cancer treatments.

The business model of Rakuten Medical is based on the development and commercialization of its Alluminox™ platform. The company generates revenue by selling its innovative cancer treatment products to healthcare providers and patients.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2010
Headquarters
San Diego, United States
Employees
131
Open positions
7
Dealroom signal
78.6/100
Industry
Health
Sub-industry
BioTechnology, Medical Devices
Sector
Biotech & Life Sciences, Biotechnology, Oncology, Spinout, Biotech and Pharma, DT and LS, science-based
Business model
Manufacturing
Client focus
b2b
Investment activity
1 company, latest Sep 2020
Capital deployed
—
Preferred round
ACQUISITION

Funding history

10 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
LATE VCOther financing Apr 2026 $0 — Lotte ↗
CONVERTIBLEOther financing Jan 2026 $30M — Undisclosed ↗
Showing the latest 2 of 10 recorded eventsBook a demo for the full funding history →

Growth signals

Rakuten Medical website traffic

Latest recorded traffic for Rakuten Medical is 13K monthly website visits, down 7.1% over the last three months. Rakuten Medical's team grew 6.5% over the past year.

Latest monthly visits13K 3-month web change-7.1% 1-year team growth+6.5%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

Company identity and context are open; selected comparison metrics preview what is available on the platform.

Showing 8 of the closest matchesCompare every metric →

Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

10 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A3 investors entered at this stage

Series B and later6 investors entered at this stage

  • SBI Group
  • SBI Investment
  • Dai-ichi Life Insurance
  • Mizuho Capital
  • Hikma Pharmaceuticals
  • Lotte

Other known investors1 additional known investor

  • National Cancer Institute (NCI)
Team profiled 10 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 4 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.

Global footprint

Workforce and web traffic by country
Workforce by country
6 countries with
team presence
🇺🇸 United States40%
🇯🇵 Japan40%
🇹🇼 Taiwan13.8%
🇮🇳 India3.8%
🇨🇭 Switzerland1.3%
Top 5 of 6 shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Rakuten Medical on X, ranked by likes and reposts, corporate channels excluded.

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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