15th Rock
Venture capitalYokohama · Seed–Late Stage · 8 people tracked
Investment thesis
15th Rock is a venture capital firm focused on 'human augmentation,' backing technologies that use the power of technology to expand the abilities considered normal for humans today — imagining futures where people might control anything by thought alone, fly, or become invisible. The firm believes that achieving unparalleled success in the vast ocean of startups requires doing something different from others, but that this differentiation must also be correct.
Source: firm website, verified Aug 3, 2026.
Team · 8 people
from the firm's website
What they invest in
from 9 of 53 portfolio companiesAI & Machine Learning ×4Digital Health ×4Healthtech ×4Deep Tech ×3Hardware ×3Robotics ×3Medical Devices ×2Cleantech ×1
HQs:United States×3Japan×2Canada×1Netherlands×1
Investments · 53 tracked
founders shown can be your intro pathBloomlife offers a remote patient monitoring platform for high-risk pregnancy care, giving clinical teams customizable protocols and smart notifications to identify at-risk patients and address potential complications early.
Digital HealthFemTechHealthtechSan Francisco, US
Julien Penders(Executive Officer, Director)Eric Dy(Executive Officer, Director)Young Sohn(Director)Max Mirgoli(Director)Lucio Lanza(Director)
BoardUriridiakoghene Onovakpuri(Director)
Mechasys develops an XR Projector for the construction industry, providing robotics and advanced layout solutions to improve field productivity and worker efficiency on construction sites.
Construction TechHardwareRoboticsMontreal, CA
Onera Health provides clinical-grade remote diagnostics and monitoring solutions for healthcare professionals, with an initial focus on sleep health.
Digital HealthHealthtechMedical DevicesEindhoven, NL
Proton Intelligence develops CKM™, a continuous monitoring medical device drawing on biosensing and minimally invasive microdevice technology for clinical use.
Deep TechDigital HealthHealthtechMedical Devices
Paul(Veteran IVD technologist)Bill
Ripcord uses robotics and AI to digitize paper documents and extract data, transforming unstructured information into accessible, structured digital files for enterprise use.
AI & Machine LearningEnterprise SoftwareHardwareRobotics
Alex Fielding(Director & Ripcord Co-Founder)Sam Fahmy(CEO and President)
EneCoat Technologies develops and manufactures perovskite solar cells (PSCs) and related materials.
CleantechEnergyNew MaterialsKyoto, JP
加藤尚哉 (Naoya Kato)(Representative Director / Executive Officer / CEO)堀内保 (Tamotsu Horiuchi)(Director / Executive Officer / CTO)
Frequently asked questions
- What stage does 15th Rock invest at?
- 15th Rock invests at the Seed, Late Stage stages.
- What sectors does 15th Rock focus on?
- 15th Rock focuses on AI & Machine Learning, Consumer, Deep Tech, Hardware.
- Where is 15th Rock located?
- 15th Rock is headquartered in Yokohama, JP.
Images
Co-investors · 1
Prime Movers Lab is an early-stage venture capital firm that invests in startups advancing breakthrough scientific and engineering innovations.
Firms observed investing alongside 15th Rock, from public investor directories. Shared companies are the overlap with 15th Rock's recorded portfolio.
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