/Investor DB

Development Bank of Japan — Full Portfolio

14 tracked investments · listed companies and verified rows first

Preferred Networkspreferred.jpin𝕏✓ verified

Preferred Networks vertically integrates computer science technologies from semiconductors and computing infrastructure to solutions and applications, developing AI/machine learning systems including the domestically-built large language model PLaMo and the MN-Core AI processor series.

AI & Machine LearningDeep TechEnterprise SoftwareSemiconductorsTokyo, JP

西川徹(Co-founder)岡野原大輔(Co-founder)

Co-investorsTBS Innovation PartnersMitsubishi UFJ Asset ManagementMitsui & CoSumitomo Mitsui Trust BankTEL Venture Capital, Inc.

Qolabqolab.aiin✓ verified

Qolab applies advanced semiconductor fabrication and integration to build superconducting quantum hardware, addressing scaling bottlenecks such as qubit yield and component integration.

Deep TechQuantum ComputingSemiconductorsMadison, US

Alan Ho(Executive Officer, Director, Promoter)inJohn Martinis(CTO)inRobert McDermott(Director)

BoardMichael Kim(Director)

Co-investorsOctave Ventures LlcPhoenix Venture PartnersApplied VenturesWARF

Qolyqoly.techFeb 2026✓ verified

Qoly Corporation develops, manufactures, and sells microsurgery-assist robots and related products, using robotics to help surgeons perform precise and safe microsurgery for functional disorders.

HealthtechMedical DevicesRoboticsTokyo, JP

Yohei Kuroda(Representative Director & President (Co-founder))inKazuhito Wakana(Director & CTO (Co-founder))Atsushi Miyamoto(Chief People Officer (Co-founder))Naoki Kobayashi(CFO)

Co-investorsFast Track InitiativeMedVenture Partners, Inc.

Space Onespace-one.co.jp✓ verified

Space One is a Japanese company that provides small-rocket launch services for small satellites, aiming for the shortest contract-to-launch time and highest launch frequency using its own rockets and launch site.

Deep TechHardwareSpace TechKushimoto, JP

Masakazu Toyoda(代表取締役社長 (President & CEO))

Co-investorsSHIMIZUEmerald Technology Ventures AgJR WEST INNOVATIONSK4 Ventures

WOTA株式会社wota.co.jp𝕏✓ verified

WOTA develops small-scale decentralized water recycling systems and autonomous water treatment control systems.

CleantechClimate TechHardwareImpact & Social GoodTokyo, JP

Yosuke Maeda(代表取締役 (Representative Director))前田 瑶介(代表取締役 兼 CEO)in

Co-investorsDEEPCORE Inc.Mitsubishi UFJ Asset ManagementSMBC Nikko SecuritiesSoftBank GroupSumitomo Mitsui Trust BankDentsu Ventures+4 more

3DEO3deo.coin𝕏Jan 2024Defunct

3DEO is a metal 3D printing company that produces high-volume small metal parts and components using its patented Intelligent Layering process, paired with a Design for Additive Manufacturing service.

Advanced ManufacturingDeep TechHardwareTorrance, US

Payman Torabi(Co-founder & CTO)inMatthew Sand(President)Matthew Petros(Chief Executive Officer)inScott(CEO)Matt Petros(Co-founder and former CEO)Matt Sand(Co-founder & President)

Co-investorsAlpha EdisonFusionX VenturesGaingelsHemisphere Ventures LLC

ANDPAD Inc.andpad.co.jp𝕏Sep 2022

ANDPAD is a cloud-based construction project management service that handles everything from on-site workflow efficiency to business management for architecture and construction companies.

Construction TechPropTechSaaS

稲田武夫(代表取締役)Takeo Inada(Founder)in

Co-investorsDnx VenturesGlobis Capital PartnersHongShan Capital GroupMinerva Growth PartnersDAIKIN INDUSTRIES

Cellidcellid.comin

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-investors15th RockGlobal BrainTechstarsTEL Venture Capital, Inc.FFG Venture Business PartnersIMM Investment+2 more

Commonwealth Fusion Systemscfs.energyin𝕏Sep 2025 · $863M

Commonwealth Fusion Systems develops commercial fusion power plants using high-temperature superconducting magnet technology to provide grid-scale energy.

CleantechClimate TechDeep TechEnergyCambridge, US

Brandon Sorbom(Founder)inRobert Mumgaard(Executive Officer, Director)inDaniel Brunner(Executive Officer)inBob Mumgaard(Founder)inDan Brunner(Founder)Dennis Whyte(Founder)

Co-investorsAdvection Growth CapitalArmada Investment AGBay Bridge Ventures ClimateBeni Venture CapitalBrainstorm VenturesBreakthrough Energy Ventures+45 more

Rapidusrapidus.sein𝕏Feb 2026

Rapidus is a Swedish business news publication covering companies, stock markets, and the business community in the Skåne region of southern Sweden.

Media & Entertainment

Co-investorsMist VenturesDai Nippon PrintingFujitsu VenturesHokkaido Electric PowerSoftBank Group

Twelvetwelve.coin𝕏Jan 2025

Twelve transforms CO2 into chemicals, fuels, and materials through carbon transformation technology.

Advanced ManufacturingCleantechClimate TechHealthtechNew MaterialsMoses Lake, US

Nicholas Flanders(Founder)inEtosha Cave(Founder)inKendra Kuhl(Founder)inAndrew Cleeland(Executive Officer, Director)in

BoardMarc-Henri Galletti(Director)Nimesh Shah(Director)

Co-investorsBreakout VenturesDCVC (Data Collective)Dolby Family VenturesFifth WallAdvantage Partners Inc.Aera VC+36 more

スマートニュース株式会社smartnews.comJul 2016

SmartNews operates a news aggregation app that gives users access to articles from around 3,000 media outlets, along with weather information, coupons, and a points reward program.

AI & Machine LearningConsumerMedia & EntertainmentTokyo

Kaisei Hamamoto(Founder)inJason Holtman(Executive Officer)Cory Ondrejka(Executive Officer)Masaki Hayashi(Executive Officer)Chao Song(Executive Officer)Yi Ren(Executive Officer)

Co-investorsGlobis Capital PartnersGMO VenturePartnersJapan Post Capital Co. Ltd.JIC Venture Growth InvestmentsPrinceville CapitalSocial Starts+6 more

メルカリmercari.com𝕏Mar 2016

Mercari is a marketplace platform that enables users to buy and sell used and secondhand items, offering a wide selection of products across various categories.

Circular EconomyConsumerMarketplacesTokyo, JP

Tommy Tomishima(Founder)inRyo Ishizuka(Founder)in

Co-investorsGlobal BrainGlobisGlobis Capital PartnersGMO VenturePartnersJapan Post Capital Co. Ltd.Sumitomo Mitsui Trust nvestment Co. Ltd.+3 more

株式会社estieestie.co.jp𝕏Oct 2024

estie develops AI-powered software for real estate professionals to search, analyze, and manage commercial properties in Japan.

AI & Machine LearningData & InfrastructureEnterprise SoftwarePropTechTokyo, JP

Ei Hirai(Founder)in平井 瑛(代表取締役)

Co-investorsVertex GrowthGlobal BrainGlobis Capital PartnersUTECZENRIN FUTURE PARTNERS

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.