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 websiteWhat they invest in
from 28 of 53 portfolio companiesAI & Machine Learning ×10Healthtech ×9Deep Tech ×8Hardware ×6Digital Health ×5Fintech ×5Robotics ×4Biotech ×3
HQs:Japan×14United States×4Canada×1Netherlands×1
Who they back
founder profiles across 9 portfolio companiesFounding team size:solo founder×42 founders×43 founders×1
Accelerator rootsportfolio companies that came through a program
Investments · 53 tracked
founders shown can be your intro pathBy year:2025 · 12024 · 12 dated
Bloomlife provides a remote patient monitoring platform for high-risk patient populations, offering customizable clinical protocols and smart notifications that help care teams identify patients in need and address potential complications early.
Digital HealthFemTechHealthtechSan Francisco, US
Julien Penders(Executive Officer, Director)inEric Dy(Executive Officer, Director)inYoung Sohn(Director)Max Mirgoli(Director)Lucio Lanza(Director)
BoardUriridiakoghene Onovakpuri(Director)
Co-investorsForeground CapitalGATHER VENTURESHealthtech CapitalPallasite VenturesSuncoast VenturesThe Chernin Group (TCG Crypto)
Canaery (now General Sense) is developing scent-detection technology aimed at extending capabilities beyond the limits of human olfactory perception.
Deep TechHardware
Co-investorsGood News VenturesBreakout VenturesDolby Family VenturesKdT Ventures
Cellid is a fabless company developing AR glasses displays (waveguides) and spatial recognition engines for next-generation devices.
AI & Machine LearningDeep TechHardwareRoppongi, JP
Ken Shirakami(Representative Director & CEO)SATOSHI SHIRAGA(Founder)inKen Shiragami(Representative Director & CEO)
Co-investorsGlobal BrainTechstarsTEL Venture Capital, Inc.Development Bank of JapanFFG Venture Business PartnersIMM Investment+2 more
Degas operates a farmer finance platform that connects African smallholder farmers to credit, inputs, training, and markets, and a geospatial AI business that builds foundation models trained on satellite imagery.
AgTechAI & Machine LearningFintech
Co-investorsInclusion Japan
Ejenta builds an agentic AI platform for connected care that delivers intelligent healthcare solutions to patient homes and manages care for members with chronic conditions like heart failure.
AI & Machine LearningDigital HealthHealthtechSan Francisco, US
Rachna Dhamija(CEO)
Co-investorsaVentureCity LightTechstarsYamaha Motor Ventures
Ghoonuts is a deep-tech venture developing treatments that target brain function, focused on aphasia as an unmet medical need.
BiotechDeep TechHealthtech
Gojo & Company is a Japan-based financial inclusion group that invests in and operates microfinance institutions, banks, and fintech companies across Asia and Africa to expand access to financial services for underserved clients.
Enterprise SoftwareFintechImpact & Social GoodSaaSTokyo, JP
Taejun Shin(Co-founder, Managing Partner & CEO)Sanjay Gandhi(Co-founder & CIO)Arnaud Ventura(Managing Partner)Kohei Katada(Managing Partner / CFO)Gurol Michael Sari(Chief Operating Officer)Takao Takahashi(Chief People & Inclusion Officer)
Co-investorsBeyond Next VenturesDIMENSIONFujitsu VenturesGlobis Capital PartnersGMO VenturePartnersKDDI Open Innovation Fund+3 more
Co-investorsHiroshima Venture Capital Co. Ltd.Samurai IncubateShizuoka CapitalSumisho Venture Partners
Longan Vision develops the Fusion Vision System, a helmet-mounted thermal imaging and augmented reality device that provides firefighters with hands-free, real-time situational awareness in smoke-filled and low-visibility conditions.
Deep TechHardwareIoT
Co-investorsInnovative Solutions Canada
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
Co-investorsGlobal BrainNew Stack VenturesAgya VenturesFondactionSOSVToda
NEXT NEW WORLD is a Japanese company developing silk protein technology, centered on its patented "Karada Silk" process that turns silk into a water-soluble solution while preserving its nano-scale porous structure for adsorption and cosmetic benefits.
BiotechHealthtechNew Materials
Nobi makes AI-powered smart lamps for senior living and residential care communities that detect falls within seconds, alert caregivers, and help prevent falls through smart lighting and real-time notifications.
AI & Machine LearningHealthtechIoT
Co-investorsEQT Life SciencesAngelini VenturesPMV
Onera Health provides clinical-grade remote diagnostics and monitoring solutions for healthcare professionals, with an initial focus on sleep health.
Digital HealthHealthtechMedical DevicesEindhoven, NL
Co-investorsEQT Life SciencesLSP (Life Sciences Partners)imec.xpandInnovation Industries
Pacific Meta provides blockchain and AI services including strategy, development, implementation, digital asset management, and global expansion support for businesses.
AI & Machine LearningCrypto & Web3Fintech
Kousei Sho(Co-Founder)Kazuhito Azechi(Co-Founder)Shota Iwasaki(CEO)
Co-investorsHyperithm
Paradromics develops a brain-computer interface (BCI) system, with FDA Breakthrough Device Designations for speech decoding and digital device control, and works with academic medical institutions on translational BCI research.
BiotechDeep TechHealthtechMedical DevicesAustin, US
Matt Angle(Founder and CEO)in
Co-investorsAlpha EdisonAnthropy PartnersCapital FactoryCoastCapFrontier Path VCFusion+14 more
Proton Intelligence develops CKM™, a continuous monitoring medical device drawing on biosensing and minimally invasive microdevice technology for clinical use.
Deep TechDigital HealthHealthtechMedical Devices
Co-investorsAIN VenturesLongeVCTenmile
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)
Co-investorsIcon VenturesKleiner PerkinsCatapult VenturesComet LabsHemisphere Ventures LLCLux Capital+9 more
Robust.AI develops AI and robotics technology with a focus on human-centered design.
AI & Machine LearningDeep TechLogistics & Supply ChainRoboticsVista, US
Anthony Jules(Founder)inRodney BrooksinLeila TakayamaGabrielle Halbergin
Co-investorsEnergy Impact PartnersFontinalis PartnersFuture VenturesJAZZ Venture PartnersMetaplanetPlayground Global+1 more
Siiibo (branded Metaplanet Securities) operates a brokerage platform that lets investors buy corporate bonds issued by mid-to-late-stage startups and emerging-market listed companies.
Fintech
Co-investorsAngel Bridge Co.,Ltd.Beta venture capitalDnx VenturesRelicAozora Corporate Investment
Sun* is a digital creative studio that provides product development, DX (digital transformation), and new-business creation services, including AI-driven modernization and AI agent solutions.
AI & Machine LearningDeveloper ToolsEnterprise Software
Co-investorsSony Ventures CorporationSony Network Communications
TENET is a Japanese healthcare company building a new type of general-practice clinic that combines AI, online consultation, and comprehensive primary care.
AI & Machine LearningDigital HealthHealthtech
花房 弘也(代表取締役 CEO)武田 政則(総合診療クリニック統括責任者)佐藤 暁幸(Chief Medical Officer)
Co-investorsGMO VenturePartnersHiroshima Venture Capital Co. Ltd.NOW Japan
TENT Inc. builds cloud-based rental and subscription systems for retailers and manufacturers, including a rental platform (Kauriru), a rental-focused inventory management system using RFID and QR codes, and item lending/return tracking tools.
Logistics & Supply ChainRetail TechSaaSTokyo, JP
松田 基臣(代表取締役 (CEO))
Co-investorsJR East Start UP
WHILL designs personal electric mobility devices, including power chairs, electric wheelchairs, and mobility scooters, along with an autonomous self-driving service that transports passengers through airports and public spaces.
HardwareMobility & TransportationRoboticsTokyo, JP
Junpei NaitoKenji GohoMuneaki FukuokaSatoshi Sugie
Co-investors500 GlobalMCP Asset ManagementNippon Venture CapitalPayforwardShizuoka CapitalEight Roads Ventures+2 more
YAMAP is a hiking and outdoor app that shows a user's current location on trail maps even without cell signal, helping prevent getting lost.
ConsumerMobility & TransportationSocial
Co-investorsOita Venture CapitalSMBC Venture Capital
Co-investorsDRONE FUNDHiroshima Venture Capital Co. Ltd.Oriental Land InnovationsUntroD Capital
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)
Co-investorsGlobal BrainKyoto University Innovation CapitalMIRAI SOUZOUMonozukuri VenturesNippon Venture Capital
PETOKOTO operates a Japanese-language media site about living with dogs and cats, covering topics like adopting rescue pets, pet-friendly accommodations, cat breeds, and pet goods.
ConsumerDirect to ConsumerMedia & Entertainment
Co-investorsAPOLLO CAPITALColopl NextJR East Start UPGenesia Ventures
Co-investorsGlobal BrainKDDI Open Innovation FundShochiku Ventures
Better Place operates "Hagukumi Corporate Pension" (a defined-benefit corporate pension plan), handling enrollment administration, plan design, and implementation support for member companies.
FintechHR Tech
Morimoto(Representative (CEO))
Co-investorsIyogin CapitalOita Venture CapitalUTokyo Innovation Platform Co. Ltd.
Portfolio news
latest coverage across their companiesNobi · trysignalbase.com · May 8, 2025
Cellid · finsmes.com · Apr 16, 2025
Frequently asked questions
- How many investments has 15th Rock made?
- 15th Rock has 53 tracked investments, including 1 dated in the last 24 months.
- 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.
- Who does 15th Rock co-invest with?
- 15th Rock most often shares deals with Global Brain, Hiroshima Venture Capital Co. Ltd., KDDI Open Innovation Fund, among 85 tracked co-investors.
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.
Similar investors
B Capital is a global investment firm backing early to late-stage technology innovators across technology, healthcare, and energy & resilience sectors.
Kleiner Perkins is a venture capital firm that backs founders across technology and life sciences, from early stage through growth.
Redpoint Ventures is a venture capital firm established in 1999 by former partners from leading venture firms, focusing on early-stage technology companies across multiple sectors. The firm leverages its partners' technology investment experience and an extensive network of entrepreneurs and industry contacts to support portfolio company growth.
Venrock is a venture capital firm investing across technology and healthcare, backing companies in fintech, developer infrastructure, life sciences, therapeutics, semiconductors, and consumer products.
The Alibaba Entrepreneurs Fund is a not-for-profit initiative of Alibaba Group that provides investment capital and strategic guidance to entrepreneurs and young people, focusing on Hong Kong and Taiwan-nexus startups.












.jpeg)
