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AIR WATER INC.
AIR WATER INC. was established in 2004 as a holding company for the former Air Water group of businesses, consolidating industrial gas, energy, and...
AIR WATER INC.
AIR WATER INC. was established in 2004 as a holding company for the former Air Water group of businesses, consolidating industrial gas, energy, and healthcare operations under one roof. The firm's wealth originates from the founding families of these predecessor entities, with no single individual publicly named as the principal patriarch. Strategy focuses on direct investments and operational businesses across digital and industrial tech, energy solutions (including renewables and hydrogen infrastructure), health and safety (medical gases, healthcare services), agri-tech (fish farming, food processing), and global engineering. Confirmed holdings include the Air Water gas production network, a regenerative medicine research institute, joint ventures for land-based aquaculture in Kyogoku town, and a hydrogen-demonstration station at the 2025 Osaka Expo. Geographic coverage spans Japan, Southeast Asia, China, and the Americas. Total deployment is undisclosed; the group reported approximately ¥1.3 trillion in consolidated revenue for the fiscal year ending March 2026. Team size and office locations beyond the Osaka HQ are not publicly detailed. The firm operates a subsidiary focused on regenerative medicine (Air Water Regenerative Medicine Research Institute) and sponsors athlete employees in fencing. May 2026: The firm disclosed an accounting irregularity investigation, resulting in leadership changes and a remedial plan submitted to the Tokyo Stock Exchange. As a corporate family office rather than a standalone SFO, AIR WATER INC. maintains a hybrid governance structure — its principals sit on the board of the publicly listed Air Water group, creating a direct link between family wealth and the conglomerate's industrial operations. This structure is distinct from typical single-family offices that separate investment from operating control.
General information
Firm type
Single Family Office
Year founded
—
AUM
Undisclosed
Location
Region
Asia
Country
Japan
City
Osaka-shi
Corporate office
Osaka-shi, Tokyo, Japan
Sector focus
Frequently asked questions
Who runs investment decisions at AIR WATER INC.?
Investment decisions are overseen by the board of directors of the holding company, which includes representatives from the founding families. The current CEO and representative director is not publicly named on the website, but the board composition shifts as disclosed in regulatory filings.
How does AIR WATER INC. source proprietary deal flow?
Most deals come through the group's operating subsidiaries — the industrial gas network, energy division, and healthcare verticals create downstream opportunities in hydrogen infrastructure, regenerative medicine, and agri-tech. The firm also partners with local governments and universities for joint research, as seen in the Kyogoku aquaculture project and the Tokyo University canine dementia study.
Is AIR WATER INC. structured as a single family office or does it operate more like a venture firm?
It operates as a corporate family office — essentially a holding company for the Air Water group, which is itself a publicly listed conglomerate. Unlike a venture firm, it does not raise external fund capital; it deploys retained earnings and debt from group operations into both organic growth and acquisitions.
What investment stages does AIR WATER INC. typically target?
The firm targets late-stage and operational assets — typically established businesses or greenfield projects that align with its three core pillars: digital and industry, energy solutions, and health and safety. There is no public record of seed or early-stage venture investments.
How is AIR WATER INC. related to the Air Water group?
AIR WATER INC. is the holding company that owns the operating subsidiaries collectively known as the Air Water group. The group is publicly listed on the Tokyo Stock Exchange, and AIR WATER INC. serves as the corporate family office for the founding families who control the parent entity.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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