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Jan 2026Third-party coverage said the company had no independently verified dive logs, no certification, no named customers, and no published pricing; its core technical claims remain unverified publicly.
SourceTankless Dive Gear - Breath Autonomy at Sea, Land & Space
Company research
Public company, workplace, funding, and market signals
Updated Jul 29, 2026
Overview
DAIVIN! is a San Francisco-based YC W26 hard-tech startup founded in 2025 by Leo Kankkunen. It builds SPRING/HYDRA-style tankless dive gear that uses electrolysis to generate breathable oxygen from water for extreme-environment operations; public sources disagree on stage/employee count, but the clearest signal is a single ~ $500k YC-backed financing event and a very small team.
Primary product
Tankless dive gear / on-demand oxygen generation system (SPRING / HYDRA)
Founded
2025
Headquarters
San Francisco, California, United States
Team size
1-10 employees
Industry
Defense and Space Manufacturing
Sub-industry
Tankless dive gear and oxygen generation systems
Offices
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