Caplight Directory>Investors>15th Rock>15th-rock


15th Rock

15th Rock

Minato-ku, Tokyo15th-rock.com

Overview

15th Rock is a venture capital firm founded in 2019 and based in Tokyo, Japan. The firm primarily invests in startups from seed to pre-IPO stages, with a focus on 'Human Augmentation' (primarily hardware) and 'Consumer 3.0' (primarily software). Their investment sectors include robotics, electronics, AR/VR, brain-machine interface, and biotechnology. The firm has established multiple funds, including Fund No. 1 in 2019 and Fund No. 2 in 2024, which has a target size of 10 billion yen.

Portfolio Companies

16

Investments

CompanyDateStageLead
LetzRydMar 2026Series ACo-investor
Robust.AIApr 2025Early FundingCo-investor
JIZAIE Inc.Apr 2025Series ACo-investor
EneCoatFeb 2025Series C ExtensionCo-investor
CellidFeb 2025Early FundingCo-investor
View all investments

Key People

Takeshi Minamoto

Founder General Partner

Tetsu Nakajima

Founder General Partner

Sector & Stage Mix

Industry, funding stage, and valuation band breakdowns.

Premium
SeedSeries ASeries BGrowth

Unlock portfolio analytics

Sign up to view full sector, stage, and valuation breakdowns for this investor.

Investment Activity

Yearly cadence, pace, and funding raised over time.

Premium
2021
2022
2023
2024
2025
2026

Unlock portfolio analytics

Sign up to explore yearly investment trends and funding raised over time.

FAQ

Firmographic Details

HeadquartersMinato-ku, Tokyo
Year FoundedN/A

Institutional Data Access

Join leading institutional investors using Caplight to access private market data, discover pricing, and execute secondary block trades.

Requires verified institutional or accredited status.





Caplight Logo




Use CasesInvestorsEmployees

CompaniesAll Companies

LegalPrivacy PolicyTerms of UseBrokerCheckForm CRS


Disclaimer All investments involve risk, including the risk of loss of principal. You should carefully consider your investment objectives, risks, transaction costs and other expenses before deciding to invest in options, swaps or other investments.This does not constitute an offer by Caplight Technologies, Inc. to sell, or a solicitation of an offer to buy, any securities and may not be used or relied upon in connection with any offer or sale of securities. An offer or solicitation can be made only through the delivery of final offering document(s) and purchase agreement(s), and will be subject to the terms and conditions and risks delivered in such documents. Any securities offered are offered through Caplight Markets LLC, member FINRA/SIPC.