Japan Post Investment Corporation
2-3-1 Otemachi, Tokyo, Chiyoda-ku, 100-0004, Japan
Overview
Japan Post Investment provides private equity fund management and a partner in Japan Post Investment I, LLP. The firm was founded in February 2018 and is based in Chiyoda-Ku, Tokyo, Japan.
- Total investments
- 12
- Lead investments
- 2
- Investments · 12mo
- 2
- Active investors
- 5
Sector focus
- Banking
- Financial Services
- Insurance
Investment portfolio
- KnowledgeWork
Participated · Series C · Aug 2026
KnowledgeWork is a Japanese sales enablement company that has moved from a SaaS knowledge-sharing platform for sales teams into a provider of sales-specific AI agents for large enterprises. It sells three lines: Sales AX Consulting, in which consultants and forward-deployed engineers build and operate AI agents fitted to a customer's own sales process; Sales AI Products, including a tool that automates meeting minutes and CRM/SFA entry and a roleplay tool that runs practice sales conversations against AI avatars; and Sales AI Agent OS, launched in August 2026 as the underlying platform, composed of ontology, strategy, AI agent, and interface layers. Its software is deployed at major Japanese enterprises at thousands-of-seats scale, including NTT Docomo Business, Mizuho Bank, and Nissin Foods. The company is pursuing capital and business alliances with large corporates and their venture arms to widen distribution of its sales AI agents. KnowledgeWork was incorporated in March 2020 under CEO Koji Asano and is headquartered in the Azabudai Hills Mori JP Tower in Minato-ku, Tokyo. Financially, the company had raised ¥6.12 billion cumulatively through its Series B in November 2023 and added ¥3.5 billion (~$22.1M) in the first close of its Series C in August 2026.
- Henry
Led · Series C · May 2026
Henry provides a cloud-based integrated electronic medical record, ordering, and billing system designed as a cloud-native alternative to traditional on-premise hospital systems. Since launching for hospitals in February 2023, the company reports customer outcomes including increases in bed occupancy from 60% to 100%, revenue uplifts of up to 30%, and reductions in staff overtime of 70–80%, with at least one Osaka hospital exempting doctors from night shifts. Henry plans to add AI features such as voice input, automated workflow generation, and AI-driven billing agents, and to expand value-added services and BPO offerings for facility, clerical, and nursing operations. Financially, Henry has raised approximately ¥5.7 billion to date, including the ¥3 billion Series C, following a ¥730 million Series A and a ¥1 billion Series B. The company was founded in May 2018 and is led by CEO Akito Sakasegawa.
- SDP Japan
Led · Series D · Jun 2025
SDP Japan develops integrated surgical-care platforms that help partner medical institutions with patient acquisition, supply procurement, real estate and medical equipment sourcing, and administrative operations. The company focuses on establishing and expanding specialty surgical institutions in orthopedics and cardiovascular care, primarily having produced seven surgery-focused facilities in the Tokyo metropolitan area. Its supported facilities performed over 3,000 surgeries in 2024, bringing cumulative procedures to approximately 14,000, and rank third in Tokyo for arrhythmia and hip joint replacement volumes. SDP Japan positions its model as a Japan-specific analogue to ASCs/HOPDs used internationally, aiming to realign acute care within Japan’s public insurance system. The company plans to use the new capital to strengthen its growth platform, roll out advanced surgical-care models nationwide, and rebuild medical infrastructure in regional cities to reduce disparities in access to care. The business case is supported by demographic trends: rising surgical demand in orthopedics and cardiovascular specialties (projected 5–8% annual growth) driven by Japan’s super-aging society.
- Nealle
Participated · Series B · Aug 2024
Nealle operates Park Direct, a mobility SaaS that digitizes end-to-end parking operations including customer acquisition, contracts, payments, and management. Since launching Park Direct in 2019, the company has driven DX of analogue parking processes and claims industry No.1 in "number of installations" and "online-contractable units" for three consecutive years. Nealle reports ARR growth of +1,110% from end-2021 to end-2023, a pace exceeding T2D3. Enterprise adoption is accelerating (including deployments with Mitsui Fudosan Realty) and the company is scaling its corporate fleet product Park Direct for Business (PD Biz). Nealle is also pursuing EV-related new business and plans to use funding to strengthen hiring, product development, and marketing to achieve further non-linear growth. The company was founded in 2013 and is headquartered in Tokyo, and has raised ¥10.2 billion cumulatively. Nealle runs Park Direct, a mobility SaaS that enables end-to-end online handling of parking listings, applications, contracts, rent collection (including guarantees) and customer management. The service launched in 2019 and has grown to be an industry leader; an external December 2022 survey ranked it No.1 for number of adopting companies and online-contractable parking listings. In 2022 Park Direct’s number of tenants grew roughly 500% year-over-year. Nealle has expanded into corporate parking management with Park Direct for Business (PD Biz) and forged a strategic partnership with Toyota. The company is running EV charger installation pilots and plans to use Park Direct’s online/offline parking and mobility data to build a broader mobility platform. Financially, Nealle has raised a cumulative ¥5.6 billion and reported capital of ¥4,129 million (as of July 2023). Nealle runs Park Direct, an industry-first mobility SaaS launched in November 2019 that enables online parking listings, contracts, payments (including guarantees) and customer management. The company says Park Direct achieved industry No.1 in 2020 and 2021 for number of adopting companies and listed parking spaces. In 2021 Park Direct’s payment volume grew 41.6x year-on-year as adoption and available spaces increased. Nealle plans to scale product development, hiring and advertising to accelerate usage and expand its service footprint. The company also intends to leverage accumulated parking data to support EV charging infrastructure and broader mobility-infrastructure initiatives. Nealle was founded in 2013 and is based in Nihonbashi, Chūō-ku, Tokyo.
- Cloudian
Participated · Equity · Jan 2023
Cloudian builds secure S3-compatible AI data lake platforms that offer military-grade security, scalability, and cloud integration. Its AI-ready data lake optimizes data access, supports data sovereignty requirements, and reduces costs by consolidating information into a single, cloud-like storage platform. Cloudian's geo-distributed architecture manages and protects object and file data at the edge, core, and cloud for both traditional and modern applications. The platform is proven with AI and analytics tools including PyTorch, TensorFlow, Kafka, and Druid, and its solutions are available via AWS Marketplace, HPE GreenLake, Lenovo, and reseller partners worldwide. Led by CEO Michael Tso and headquartered in San Mateo, CA, the company plans to use new funding to drive product innovation and sales and marketing to meet demand for its AI data lake software. A $23M growth financing was announced in June 2024. Cloudian is a San Mateo, CA-based hybrid cloud data management firm that builds cloud-native software for S3-compatible object storage. Its software transforms standard servers, virtual machines, containers, or public cloud into pools of S3 API-compatible object storage co-located with data sources and consumers. The company highlights geo-distributed architecture to manage and protect object and file data at the edge, core, and in the cloud, along with seamless cloud integration and scalability. In January 2023 Cloudian closed $60 million in new funding, bringing total funding to $233 million. The company said the investment will accelerate its hybrid cloud platform capabilities and prepare it for its next phase of growth, and it named Bob Griswold chairman of the board. Cloudian positions its offering to simplify operations and help customers derive new value from data as organizations advance digital transformation. Cloudian focuses on on-premise storage and multi-cloud data management for organizations that need to store and manage very large data sets. Its platform is positioned as a data-management solution rather than just raw storage, aiming to keep data close to where it is created and used to reduce latency and network costs. The company has about 160 employees and serves roughly 240 enterprise customers, with strong traction in large video archives for entertainment companies and customers in healthcare, automotive and Formula One. Cloudian is beginning to address machine learning use cases by helping customers retain and manage training data from IoT sensors, cameras and medical imaging. The company plans to use new funding to expand global sales and marketing and to increase its engineering team, including investment in AI and core technology innovation. To date it has raised a total of $174 million. Cloudian provides a scalable platform that consolidates, manages and protects enterprise data through enterprise object storage systems and management solutions that bring cloud technology and economics to the data center. The company is based in San Mateo, California and is led by CEO Michael Tso. Cloudian reports an installed base of more than 200 customers. The company announced a $125M joint venture with Digital Alpha to accelerate adoption of its enterprise object storage systems. The financing package is intended to support expansion of Cloudian’s sales, marketing, engineering and customer-support organizations and to enable more flexible procurement options for customers. Cloudian is a San Mateo, CA–based provider of hybrid cloud object storage systems led by CEO and co-founder Michael Tso. The company offers Cloudian HyperStore, which enables service providers and enterprises to build scalable hybrid cloud storage solutions and manage hundreds of petabytes for use cases including backup/archive, media and entertainment, bioinformatics, and IoT. In August Cloudian made HyperStore available on AWS Marketplace so customers can purchase on‑premises storage on a metered basis and manage it alongside Amazon S3 as a single pool with one invoice. The company also has an OEM agreement with Lenovo to offer a Cloudian-based object storage appliance through Lenovo’s worldwide sales force and is integrated with Google Cloud Storage Coldline for hybrid archival storage. Cloudian intends to use the new funds to accelerate innovation, expand sales and marketing, and grow international operations. The company has raised $79M in total capital to date.