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Medmain

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AI-powered cloud system for digital pathology analysis

Tokyo, JapanFounded 2018Biotech & Life Sciences
Valuation $25–50M Last recorded · 2025
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Medmain and the history behind them.

About Medmain

Medmain Inc. is a Japanese medical technology startup founded in 2018 by Osamu Iizuka. Iizuka, who serves as CEO, was inspired to enter the medical field after a long-term hospitalization at age 18. While in medical school at Kyushu University, he became interested in programming and, along with companions, began developing software to aid the medical field. The concept for Medmain emerged after a professor noted that a cell tracking system they developed could be applied to pathological diagnosis. The company's mission is to create a world where medical services can be accessed with technology anywhere, anytime. Medmain develops and provides "PidPort," an AI-powered cloud system designed to support digital pathology. This platform addresses the global shortage of pathologists and the resulting delays and regional disparities in pathological diagnosis. The company's business model is primarily B2B, serving medical institutions such as hospitals and research facilities. PidPort allows for the storage, management, viewing, and sharing of digital pathological specimen images on the cloud, eliminating the need for physical slide transportation and enabling remote diagnosis, consultations, and conferences. The system features a high-speed web viewer for comfortable image operation and can be accessed from a PC or tablet with an internet connection without requiring special software installation. A core feature of PidPort is its AI-driven analysis, which uses deep learning to provide highly accurate and rapid image analysis of tissues and cells for cancer screening. The AI models are developed through collaborative research with multiple medical institutions, using hundreds of thousands of pathological specimens to create the training data. The platform currently supports AI analysis for organs such as the stomach, colon, breast, lung, and pancreas, as well as cervical cells. By providing this technology, Medmain aims to reduce the workload and psychological burden on pathologists. The company generates revenue by providing its PidPort services, which range from creating virtual slides to offering diagnostic support, with customized plans available. As of May 2025, Medmain had raised a total of $19.6 million in funding and is using the capital to enhance product development, apply for regulatory approval, and expand internationally.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2018
Headquarters
Tokyo, Japan
Employees
14
Open positions
None listed
Dealroom signal
71.8/100
Industry
Health
Sub-industry
BioTechnology
Sector
Biotech & Life Sciences, Biotechnology, Spinout, Biotech and Pharma, DT and LS, science-based
Business model
SaaS
Client focus
b2b

Funding history

10 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
EARLY VCOther financing May 2025 $3.6M $42M Plug and Play · Niremia Collective · One Capital ↗
SERIES AOther financing Apr 2024 $6.5M $42M PSP · Migaro · Angel Navi · Nikon ↗
Showing the latest 2 of 10 recorded eventsBook a demo for the full funding history →

Growth signals

Medmain website traffic

Latest recorded traffic for Medmain is 30 monthly website visits, down 87.5% over the last three months. Medmain's team grew 0% over the past year.

Latest monthly visits30 3-month web change-87.5% 1-year team growth0%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Investments and acquisitions

Capital deployed

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

Investors

16 investors on the cap table

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

Series A13 investors entered at this stage

  • Beta Venture Capital
  • Deepcore
  • Hike Ventures
  • QTnet
  • Fukuoka Wajiro Hospital
  • Mirai Souzou
  • PSP
  • Migaro
  • Angel Navi
  • Nikon
  • Plug and Play
  • Niremia Collective
  • One Capital

Other known investors3 additional known investors

  • J-Startup
  • Kyushu University
  • WorldUpstart
Team profiled 2 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.

Global footprint

Workforce and web traffic by country
Workforce by country
1 countries with
team presence
🇯🇵 Japan100%
1 country shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Medmain 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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