🦊/Investors

Mitsui Sumitomo Insurance CapitalFull Portfolio

16 tracked investments · listed companies and verified rows first

APTOapto.co.jp𝕏✓ verified

APTO provides AI training data services, including data annotation (harBest Annotation) and expert-labeled datasets across formats such as 3D/LiDAR, text, audio, video, and images.

AI & Machine LearningData & InfrastructureTokyo, JP

Ryo Takashina(代表取締役 (Representative Director / CEO))in

Co-investorsANOBAKACanal VenturesGREE Ventures

FUNDiT IT領域に特化した共創型M&Aとロールアップを行う事業投資を展開fundit.jp✓ verified

FUNDiT acquires and operates small to mid-sized IT businesses using AI and big data analysis for M&A targeting and operational improvement.

AI & Machine LearningEnterprise SoftwareShinagawa, JP

Co-investorsShizuoka CapitalDual Bridge CapitalJapan Post Insurance NEXT PartnersMitsubishi UFJ CapitalNANKAI NEXT VenturesUNITED+2 more

Global Vascular株式会社g-vasc.comin✓ verified

Global Vascular develops medical devices based on its BioDiamond Technology, including antithrombotic diamond (F-DLC) coatings, drug-eluting stents, and catheters for vascular and interventional treatments.

Deep TechHealthtechMedical DevicesNew MaterialsTokyo, JP

Kenta Bito(Founder & CEO)inShunto Maegawa(Founder & CTO)inEmi Matsuoka(COO)in

BoardTerumitsu Hasebe(Director)

Co-investorsFast Track InitiativeTokyo University of Science Innovation CapitalMitsubishi UFJ CapitalSumitomo Mitsui Trust Bank

大熊ダイヤモンドデバイス株式会社ookuma-dd.com✓ verified

Ookuma Diamond Device develops diamond semiconductor technology, aiming to apply diamond-based devices across various fields.

Deep TechHardwareSemiconductorsSapporo, JP

星川 尚久(代表者 (Representative))

Co-investorsaSTARTCoral CapitalGlobis Capital PartnersFFG Venture Business PartnersHokuhoku CapitalSMBC Venture Capital+1 more

株式会社Kyashkyash.co𝕏✓ verified

Kyash is a Japanese mobile payment app that lets users load funds into their balance from bank accounts, credit or debit cards, Pay-easy, and dedicated deposit accounts, with no deposit fees and options for scheduled or automatic top-ups.

ConsumerFintechTokyo, JP

Shinichi Takatori(Representative Director & President (Founder))in

Co-investorsAltos VenturesBlock IncGoodwater CapitalGreyhound CapitalJAFCO GroupMizuho Capital+7 more

株式会社Smart119smart119.biz𝕏✓ verified

Smart119 develops ICT-based technology aimed at solving problems in medical and emergency care settings to help treat more patients.

AI & Machine LearningDigital HealthEnterprise SoftwareHealthtechMedical DevicesKagoshima, JP

中田 孝明(代表取締役)菊永 満(代表取締役社長)

Co-investorsNissay CapitalPKSHA Technology CapitalSony Ventures Corporation

株式会社サウンドファンsoundfun.co.jp𝕏✓ verified

MiraiSpeaker develops audio hardware products and assistive hearing technology for aging populations, enabling seniors to experience enriched lives through technology.

ConsumerHardwareHealthtechLongevityWellness & FitnessTokyo, JP

山地 浩

Co-investorsJapan Post Capital Co. Ltd.TOPPAN Holdings

株式会社ミライスピーカーmiraispeaker.com𝕏✓ verified

Mirai Speaker (株式会社ミライスピーカー) plans, develops, manufactures, and sells age-tech audio products such as the "Mirai Speaker" and "Mirai Speaker Ear," aimed at making longer lifespans more comfortable through technology.

ConsumerHardwareHealthtechLongevityTokyo, JP

Hiroshi Yamaji(代表取締役社長/CEO)

Co-investorsJapan Post Capital Co. Ltd.TOPPAN HoldingsIyogin Capital

ArkEdge Spacearkedgespace.comin𝕏Mar 2022

ArkEdge Space designs, builds, and operates microsatellites and satellite constellations, and provides related components, software, and satellite ground station operation services.

Deep TechHardwareSpace TechTokyo, JP

Takayoshi Fukuyo(代表取締役CEO)inRyohei Takahashi(取締役Co-CTO)inKanta Yanagida(取締役Co-CTO)inSeigo Morita(執行役員CFO)Tomoaki Yasuda(執行役員CSO)inKota Kakihara(執行役員Co-CTO)in

Co-investorsHulic StartupJIC Venture Growth InvestmentsShizuoka CapitalUntroD CapitalWiL

Mentomentolabs.xyzin𝕏

Mento operates a multi-currency stablecoin platform that brings world currencies onchain, offering decentralized stablecoins pegged to major and emerging market currencies (from USD, EUR, and JPY to the Kenyan Shilling and Nigerian Naira).

Crypto & Web3Fintech

Co-investorsFlori Ventures

Smart Craftsmartcraft.jp𝕏Feb 2026

Smart Craft is a cloud-based manufacturing execution system that digitizes factory operations from production planning through data collection and analysis.

Advanced ManufacturingAI & Machine LearningCloud Computing

Co-investorsANOBAKAGenesia VenturesMitsubishi UFJ CapitalOmron Ventures

株式会社BALLASballas.biz𝕏Apr 2026

BALLAS designs, develops, manufactures, and sells construction materials.

Advanced ManufacturingB2B MarketplacesConstruction TechSaaSTokyo, JP

Co-investorsANOBAKAGlobal Brainmint VCAozora Corporate InvestmentDaiwa House VenturesKyoto Capital Partners+4 more

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

BETAdodoAIOpenHeartThinkCyte

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.