SDP Japan Raises $31 Million in Series D Round
Pioneering the Future of Surgical Care in Response to Rising Demand
SDP Japan has successfully raised approximately JPY 4.5 billion (equivalent to USD 31 million) through a Series D equity financing round, alongside secondary transaction, debt financing and asset-based funding. The equity round was led by Japan Post Investment and included participation from seven institutional investors.
Background and Future Outlook
Japan's super-aging society continues to fuel steady growth in the healthcare sector, particularly in the fields of orthopedics and cardiovascular — two core areas of focus for SDP Japan. Surgical procedures in these specialties are increasing at 5–8% per annum, with demand projected to grow through 2050, according to research by Yano Research Institute.
Despite growing need, the surgical care sector faces systemic challenges: surgeons often lack access to adequate infrastructure and support, while patients continue to struggle with finding reliable specialists — often by chance — highlighting persistent disparities in access to information and care.
SDP Japan is redefining the surgical care model by building integrated platforms where physicians can focus purely on their expertise, and patients are guided seamlessly toward optimal treatments. With a unique position at the intersection of patient marketing, facility production, and healthcare operations management, the Company has expanded the footprint of surgery-focused medical institutions — primarily in urban areas — and is now poised to scale its next-generation model nationwide.
This funding round will further strengthen SDP Japan's growth platform and enable the rollout of advanced surgical care models to underserved regions. The Company is committed to rebuilding medical infrastructure in regional cities through close collaboration with stakeholders across the healthcare ecosystem, aiming to establish a sustainable and equitable healthcare system.
With the agility and execution power of a startup, SDP Japan aspires to be a transformative force in the Japanese healthcare industry.
About SDP Japan
SDP Japan is a healthcare startup with a mission to 'deliver joy and inspiration through advanced surgical care.' The Company supports the nationwide development of specialty surgical institutions in orthopedics and cardiovascular. SDP Japan offers a wide range of services to its partner medical institutions, including patient acquisition (marketing), supply procurement, real estate and medical equipment sourcing, and administrative support — delivering innovative solutions across the surgical care spectrum.
Since its founding in 2014, SDP Japan has helped produce seven surgery-focused institutions in the Tokyo metropolitan area. In 2024, its supported facilities performed over 3,000 surgeries, bringing the cumulative total to approximately 14,000. Those institutions rank third in Tokyo for both arrhythmia and hip joint replacement surgeries, based on the number of procedures performed (source: Shukan Asahi Mook, "Best Hospitals for Surgery 2024").
Internationally, outpatient surgical centers are widely adopted in the form of ASCs (Ambulatory Surgical Centers) or HOPDs (Hospital Outpatient Departments), driven by robust patient outcome data. SDP Japan aims to support the establishment of a Japanese version of the ASC platform tailored to Japan's public insurance system, contributing to the realignment of acute cares.
At the heart of our mission is the desire to deliver life-changing outcomes for patients and their families through the hands of exceptional surgeons.
List of Series D Investors (in no particular order)
Existing Investors:
Eight Roads Ventures Japan
Globis Capital Partners
New Investors:
Japan Post Investment (Lead Investor)
T&D Innovation Fund / Spiral Innovation Partners
Sumitomo Mitsui Trust Bank
Japan Co-Invest No. 4 Fund / Sumitomo Mitsui Trust Investment
All Corporation
List of Lenders (in no particular order)
Resona Bank
Shizuoka Bank
SBI Shinsei Bank