Tetsu Nakajima
InvestorGeneral Partner at 15th Rock
Tokyo
Writes $100K β $5M checks Β· typically $1.5M
About
Tetsu Nakajima is Founder and General Partner of 15th Rock, a Japan-based venture capital fund investing across more than 30 startups in Japan, North America, the UK, and the Netherlands, with focus areas including human augmentation, robotics, AI, digital health, biotechnology, and consumer technologies. He is also founder of Spirete Inc., which supports entrepreneurs spinning out from Japanese enterprises. Nakajima brings over 15 years of venture capital experience across seed, early, and growth stage investments at INCJ, Mistletoe, and 15th Rock, with track records including one IPO exit and multiple M&A transactions, along with eight years of research engineering experience at Toshiba's Corporate R&D center, where he participated in IEEE 802.11n and Wi-Fi Alliance standardization efforts.
Experience
- 15th RockFounder & General Partnercurrent2019 β present
- Spireteε ±εε΅θ¨θ current2019 β present
- Mistletoe, Inc.Community Membercurrent2019 β present
- Mistletoe, Inc.Chief Investment Officer2017 β 2019
- Mistletoe, Inc.Senior Director2016 β 2017
- Innovation Network Corporation Of JapanVice President2009 β 2016
- WHILL, Inc.Board Observer2014 β 2016
- Wireless Glue Networks, Inc.Board Observer2013 β 2016
- Miselu Inc.Board Observer2011 β 2015
- Nakamura Choukou co. LtdBoard Observer2011 β 2014
- Toshiba CorporationResearcher2002 β 2009
Education
- Hokkaido UniversityMaster of Engineering (ME), System Control Engineering2000 β 2002
- GLOBIS University - Graduate School of ManagementMaster of Business Administration (MBA)2007 β 2009
- Hokkaido UniversityBachelor of Engineering (BE), System Control Engineering1996 β 2000
Skills & more
+9 more
Strategic PartnershipsMobile DevicesStrategic PlanningVenture CapitalProduct MarketingPrivate EquityMergers & AcquisitionsBusiness PlanningStart-upsLanguages ζ₯ζ¬θͺ Β· θ±θͺ
From Tetsu's professional profile.
Same school
Also attended Hokkaido University8
+ 2 more
Also attended GLOBIS University - Graduate School of Management5
Shared employers
Also worked at Spirete1
Also worked at Mistletoe, Inc.3
Also worked at Innovation Network Corporation Of Japan1
Colleagues at 15th Rock
Network1
Investors connected to Tetsu in public investor directories β a warm-intro map.




















