Prime Partners
Venture capitalTokyo · Pre-Seed–Growth · 4 people tracked
Also known as 株式会社 プライムパートナーズ
Find your way into Prime Partners
Investment thesis
Prime Partners positions itself as a hub connecting global startups with large enterprises. It manages venture capital and corporate venture capital funds, invests in startups, and helps both sides build growth and new-business strategies to create innovation. Beyond investing, the firm offers innovation consulting to design organizations and processes for corporate new-business development, and it acts as a co-partner to startups and large companies to accelerate and manage ventures and open innovation initiatives across sectors such as AI, life sciences, fintech, enterprise software, and consumer/commerce.
Source: firm website, verified Sep 20, 2026.
Team · 4 people
from public directoriesWhat they invest in
from 38 of 68 portfolio companiesAI & Machine Learning ×17SaaS ×12Enterprise Software ×10Biotech ×6Consumer ×5Gaming ×5Healthtech ×5Data & Infrastructure ×4
HQs:United States×16Japan×14Germany×1
Who they back
founder profiles across 31 portfolio companiesFounding team size:solo founder×162 founders×93 founders×54+ founders×1
Where their founders studiedfrom 38 founders with education data
Keio University ×3Princeton University ×3Doshisha University ×2Indian Institute of Technology, Kharagpur ×2McGill University ×2Novosibirsk State University (NSU) ×2Rutgers University ×2Sharif University of Technology ×2
What their founders studiedfrom 31 founders with field-of-study data
Computer Science ×10Engineering ×5Life Sciences ×3Business & Management ×2Economics ×2
Where their founders worked beforefrom 38 founders with career history
Facebook ×3AT&T Interactive ×2EPFL (École polytechnique fédérale de Lausanne) ×2Oracle ×2Stanford University ×2
10 founders hold a PhD · 3 hold an MBA (of 36 with degree data)
Investments · 68 tracked
founders shown can be your intro pathBy year:2024 · 12023 · 12022 · 13 dated
GRAIL develops the Galleri blood test for multi-cancer early detection using next-generation sequencing and machine learning to screen for multiple deadly cancer types before symptoms appear.
AI & Machine LearningBiotechHealthtechMedical DevicesMenlo Park, US
Jeffrey T. Huber(Director)Joshua Ofman, MD, MSHS(Chief Executive Officer)inAaron Freidin(Executive Officer)inJosh Ofman(Executive Officer)inRobert Ragusa(Executive Officer, Director)Jennifer Cook(Executive Officer, Director)in
Co-investorsAmino CapitalARCH Venture PartnersBezos ExpeditionsBluebird VenturesDecheng CapitalDentsu Ventures+8 more
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Twist Bioscience develops a silicon-based synthetic DNA manufacturing platform that produces high-quality DNA, genes, and NGS reagents for customers in medicine, agriculture, and industrial chemicals.
BiotechDeep TechSemiconductorsSouth San Francisco, US
William Charles Banyai(Executive Officer, Director, Promoter)Bill James Peck(Executive Officer, Promoter)Emily Leproust(Founder)inEmily M. Leproust(Chief Executive Officer and Chair of the Board)inPatrick Finn(President and Chief Operating Officer)inAdam Laponis(Chief Financial Officer)in
Co-investors+ND Capital3E Bioventures CapitalARCH Venture PartnersAsset Management CompanyBay City CapitalBlack Opal Ventures+8 more
Implicit is an AI-powered knowledge platform that aggregates technical content from manuals, tickets, and procedures to provide cited answers to both human workers and AI agents.
AI & Machine LearningEnterprise SoftwareSaaS
Co-investorsAAF Management Ltd.Cerity Partners VenturesDentsu VenturesM12 (Microsoft's Venture Fund)Point72 VenturesTensility Venture Partners+5 more
Astrocade appears to be a gaming platform that hosts games and features creators with follower or player counts.
Creator EconomyGamingSocial
Amir Sadeghian, PhD(Founder)inAli Sadeghian(Founder)in
Co-investorsChaac VenturesDentsu VenturesLG Technology VenturesThe Venture Reality Fund
bemyfriends provides fandom business solutions that combine IT platforms with consulting services, helping creators and brands build sustainable businesses around their fan communities.
Creator EconomyMedia & EntertainmentSaaSSocial
Co-investorsCleveland AvenueAMUSE
Clear Labs develops fully automated next-generation sequencing (NGS) platforms that process genomic data into insights for research and surveillance applications across infectious disease, food safety, and oncology.
BiotechData & InfrastructureDeep TechHealthtechMedical DevicesSan Carlos, US
Sasan Amini(Co-founder & CEO)inRamin Khaksar(Executive Officer)inEdward Fan(Executive Officer)inBrodie Flanders(Executive Officer, Director)Kazutaka Ohno(Executive Officer)Farzad Naimi(Executive Officer, Director)
Co-investorsMenlo VenturesKhosla VenturesNimble VenturesCastor VenturesDentsu VenturesFelicis Ventures+8 more
CreditEngine (クレジットエンジン株式会社) is a Japanese company that provides online lending and credit technology services.
AI & Machine LearningFintechSaaSTokyo, JP
内山 誓一郎(代表取締役 (Representative Director/CEO))in向山 裕介(取締役CPO)in新色 顕一郎(取締役COO)in神谷 麗(執行役員CFO / Finance and Strategy Lead)in阿藤 誠一(執行役員 / Lending Team Lead)in
Co-investorsCARTA VENTURES, Inc.DG Incubationfreebit investmentShizuoka Capital500 Global
Clint Sever(Founder)in
Co-investorsACME CapitalDarwin CapitalDecheng CapitalDentsu VenturesForesite CapitalCAVU Consumer Partners+1 more
double jump.tokyo is an enterprise Web3 infrastructure company offering four solutions—corporate wallets, stablecoin payments, AI agent payments, and crypto asset accounting—for companies' authentication and payment needs.
AI & Machine LearningCrypto & Web3Enterprise SoftwareFintechTokyo, JP
Hironobu Ueno(Director)Yukinori Matsuya(Director)inTakashi Fujishima(Director)Ryo Manzoku(Director)Hiroyuki Kawamoto(Director)Guo Yihong(Executive Officer)
Co-investorsDentsu VenturesFenbushi CapitalZ Venture CapitalSBI Investment
EXO produces protein bars and cricket powder supplements made from acheta (cricket) protein.
ConsumerDirect to ConsumerFoodTechHealthtechWellness & Fitness
Co-investorsDentsu VenturesWakestream Ventures
Fiddler AI provides an AI observability and control platform offering experiments, monitoring, guardrails, and governance for enterprise AI agents and compound AI systems.
AI & Machine LearningData & InfrastructureEnterprise SoftwarePalo Alto, US
Krishna Gade(Founder & CEO)in
Co-investorsAngel Collective Opportunity FundaVentureBenhamou Global VenturesCisco InvestmentsDallas Venture CapitalDentsu Ventures+20 more
FOLIO is an AI-powered robo-advisor that automatically manages investment portfolios by predicting market trends and dynamically adjusting asset allocation monthly.
AI & Machine LearningFintech
Co-investorsCoreline VenturesDentsu VenturesDnx Ventures
Forest Inc. is a Japanese company that acquires and operationally manages e-commerce brands and Japanese original products, focusing on businesses with over 100 million yen in sales or growth potential through online channels.
B2B MarketplacesDirect to ConsumerE-commerceEnterprise SoftwareSector AgnosticTokyo, JP
Yuki Kato(Founder & CEO)Shingo Yuhara(Representative Director & CEO)in
Co-investorsDBJ CapitalDentsu VenturesJapan Post Capital Co. Ltd.NordstarUTEC
Geltor uses a proprietary biodesign and precision fermentation platform to create and commercially produce novel protein ingredients, including collagens, for beauty and personal care formulators.
BiotechFoodTechNew MaterialsWellness & Fitness
Alexander Lorestani(Founder)inNick Ouzounov(Co-founder)in
Co-investorsAgronomicsAlwyn CapitalArgonautic VenturesBaruch Future VenturesBlue Horizon CorporationCavallo Ventures+14 more
Inworld AI provides a full-duplex audio streaming platform that enables real-time conversational AI interactions with intelligent turn-taking, function calling, and multi-model routing capabilities for developers building conversational applications.
AI & Machine LearningDeveloper ToolsMountain View, US
Ilya Gelfenbeyn(Founder)inKylan Gibbs(Founder)inMichael Ermolenko(Founder)in
Co-investorsBitkraft Esports VenturesBrave CapitalCRV (Charles River Ventures)Dentsu VenturesDisney AcceleratorFirst Spark Ventures, Llc+11 more
Kognitos builds an agentic AI automation platform that lets business users write automation logic in plain English, executed deterministically by a patented neurosymbolic engine across 130+ enterprise integrations.
AI & Machine LearningEnterprise SoftwareSaaSSan Jose, US
Binny Gill(Founder)in
BoardAshmeet Sidana(Director)in
Co-investorsClear VenturesEngineering CapitalFin CapitalKhosla VenturesDentsu VenturesProsperity7 Ventures+2 more
LayerX offers an Interaction Security Platform that gives security teams visibility and control over how users and on-device AI agents interact with AI tools, SaaS applications, identities, and data at the last mile.
AI & Machine LearningCybersecurityEnterprise SoftwareSaaS
David Vaisbrud(Founder)in
Co-investorsDIMENSIONGlilot Capital PartnersJIC Venture Growth InvestmentsCoreline VenturesDell Technologies CapitalJAFCO Group+2 more
LiveLike develops interactive digital engagement tools for sports and entertainment audiences.
Marketing TechMedia & EntertainmentSaaSNew York, US
Miheer Walavalkar(Founder)in
Co-investorsComcast VenturesCourtside VenturesDentsu VenturesScrum VenturesBigfoot CapitalElysian Park Ventures+1 more
matsuri technologies is a Japanese company building software-driven businesses in the travel and accommodation sector, focused on developing the tourism industry and labor-saving (automation) solutions to address staffing shortages.
PropTechSaaSTravel & Hospitality
Co-investorsDG IncubationGlobis Capital PartnersJapan Post Capital Co. Ltd.Open Network LabMitsubishi HC Capital
Technology-driven real estate model providing cost-effective vacation rentals and homes completed online.
Co-investorsJIC Venture Growth InvestmentsRegional Revitalization SolutionVertex Ventures Sea Management Pte. Ltd.ZENRIN FUTURE PARTNERSJapan Post Capital Co. Ltd.Mitsubishi Estate+1 more
Mill makes an electric food waste recycler for homes that reduces food scraps by 80% and converts them into nutrient-rich grounds for gardens or farms.
Climate TechConsumerHardwareSan Bruno, US
Harry Tannenbaum(Founder)inMatthew Rogers(Founder)in
Co-investorsBreakthrough Energy VenturesBuckhill CapitalCleo CapitalEnergy Impact PartnersGigascale CapitalGV (Google Ventures)+7 more
MOSH is a platform connecting creators with customers based on individual reputation and expertise rather than corporate affiliation.
AI & Machine LearningB2B MarketplacesCreator EconomyMarketplacesSaaSTokyo, JP
Kazuya Yabu(Founder)in籔 和弥(創業者 / CEO)
Co-investorsDBJ CapitalGlobal BrainJIC Venture Growth InvestmentsKDDI Open Innovation FundSumisho Venture PartnersGenesia Ventures+2 more
Mysten Labs builds infrastructure and tools for web3, focusing on making decentralized systems secure, reliable, and ready for mass adoption.
Cloud ComputingCrypto & Web3Deep TechDeveloper ToolsPalo Alto, US
Adeniyi Abiodun(Founder)inKostas Kryptos Chalkias(Founder)inSam Blackshear(Founder)inEvan Cheng(Founder)in
Co-investorsa16z cryptoAlumni VenturesAndreessen HorowitzArrington CapitalBasecamp FundBig Brain Holdings+22 more
Nealle operates Park Direct, a mobility SaaS platform that handles parking-lot leasing, contracts, monthly rent collection (with rent guarantee), and customer management online, along with a business-focused version (PDBiz) for corporate fleet and commuter parking and One Day Park, a daily parking reservation service.
Mobility & TransportationPropTechSaaS
Co-investorsShizuoka CapitalMitsubishi Estate
Operates a cross-border business platform.
Tomonari Hamano(Founder)in
Co-investorsDentsu VenturesDnx VenturesGlobis Capital PartnersJapan Post Capital Co. Ltd.Payforward
Overtime creates and operates new sports leagues and media IP — including OTE and OT Select in basketball and OT7 and OT Nationals in football — while producing over 150 weekly pieces of original sports content for its global audience of next-generation fans and athletes.
ConsumerMedia & EntertainmentSports TechBrooklyn, US
Daniel Porter(Executive Officer, Director)Zachary Weiner(Founder)inZack Weiner(Founder)in
Co-investors359 CapitalAndreessen HorowitzBezos ExpeditionsBlack CapitalSpark CapitalWinslow Capital+18 more
Skyflow provides a data privacy vault delivered via an API that lets companies store, protect, and manage sensitive customer information such as financial, healthcare, and other personal data.
AI & Machine LearningCybersecurityData & InfrastructureDeveloper ToolsPalo Alto, US
Anshu Sharma(Co-founder & CEO)inRoshmik Saha(Co-founder)inAmruta Moktali(Chief Product Officer)inKen Laversin(Chief Revenue Officer)inDaniel Wong(Head of Security Engineering)in
Co-investorsCanvas VenturesDentsu VenturesFirestreak VenturesFoundation CapitalInsight PartnersMouro Capital+2 more
Solsten builds an audience-understanding platform that uses psychometrics and AI to profile the psychological makeup of a company's users, primarily to help game studios and brands design more engaging experiences.
AI & Machine LearningData & InfrastructureGamingMarketing TechBerlin, DE
Bastian Bergmann(Co-founder)inJoe Schaeppi(Co-founder & CEO)in
Co-investorsAlumni VenturesDentsu VenturesGFR FundKonvoy VenturesSisu Game VenturesSupernode Global+4 more
Survios is a video game studio that develops and publishes immersive VR and action games, including licensed titles set in the Alien universe and Rocky/Creed boxing franchises.
Gaming
James Iliff(Founder)in
Co-investorsDentsu VenturesEastward Capital PartnersLux CapitalQualcomm VenturesSamsung NextShasta Ventures
Techtouch provides a no-code Digital Adoption Platform that overlays on-screen operation guides and navigation onto existing web systems and applications to reduce input errors and support workload.
AI & Machine LearningEnterprise SoftwareSaaSTokyo, JP
井無田 (Imuda)(Co-founder)日比野 (Hibino)(Co-founder)Naka Imuta(Founder)in
Co-investorsDnx Ventures31VenturesDBJ CapitalDentsu VenturesSony Ventures CorporationAozora Corporate Investment
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STEAM Carnival is a traveling, high-tech carnival that combines science, technology, engineering, art, and math into midway games and attractions.
ConsumerEdTechGamingMedia & EntertainmentLos Angeles, US
Eric Gradman(Executive Officer, Director)inBrent Bushnell(Executive Officer, Director)in
BoardRyan McIntyre(Director)inMark Solon(Director)
Co-investorsDentsu VenturesJAZZ Venture PartnersFoundryIntel Capital
Tynker is a digital learning platform providing coding curriculum and courses for children through schools and parents.
AI & Machine LearningEdTechChicago, US
Kelvin ChonginKrishna VedatiinSrinivas Mandyamin
Co-investors500 GlobalDentsu VenturesFelicis VenturesGSV VenturesNew Ground VenturesXG Ventures+3 more
Upside Foods produces cultivated meat using cell-based technology.
BiotechFoodTechSan Francisco, US
Uma Valeti(Founder & CEO)in
Co-investorsAlwyn CapitalCPT CapitalDentsu VenturesFifty YearsFuture VenturesJoyance Partners+10 more
VALT JAPAN provides business process outsourcing services and employment support for people with disabilities, operating the NEXT HERO platform.
Enterprise SoftwareFuture of WorkHR TechImpact & Social GoodSocialJapan, JP
小野 貴也(代表取締役)
Co-investorsMitsubishi UFJ CapitalMizuho CapitalSMBC Venture CapitalZ Venture Capital
ZymoChem develops bio-based materials using proprietary Carbon Conserving (C2) microbes that convert renewable feedstocks into high-value materials with increased yields.
BiotechCircular EconomyClimate TechNew MaterialsSan Leandro, US
Harshal Chokhawala(Founder & CEO)in
Co-investorsAccelr8Breakout LabsBreakout VenturesCavallo VenturesDudley FundFreshTracks Capital+7 more
Kauche Farm is a gamified mobile app feature integrated into the Kauche app where users nurture virtual crops through daily watering and quests to earn free product coupons.
ConsumerGamingMarketplacesSocialTokyo, JP
Kempei Monna(Founder)in
Co-investorsDelight VenturesDentsu VenturesGlobal BrainMobile Internet Capital, Inc.New Commerce VenturesSony Ventures Corporation
Kakehashi develops digital transformation software for pharmacies in Japan, serving the country's roughly 60,000 dispensing pharmacies.
Digital HealthHealthtechSaaS
Takashi NakagawaYutaka NakaoSatoshi EbiharaShingo Ito
Co-investors500 GlobalAozora Corporate InvestmentCoral CapitalDentsu VenturesDnx VenturesGlobis Capital Partners+3 more
Japanese manga publisher and Webtoon studio producing original vertical-scroll comics distributed in 11 countries.
前田儒郎(Founder)in
Co-investorsAtinum Investment Co. Ltd.DBJ CapitalDentsu VenturesFunds StartupsGlobal BrainKDDI Open Innovation Fund+2 more
Lisse provides AI-powered legal document review and legal compliance support services to enterprises.
AI & Machine LearningEnterprise SoftwareLegalTechTokyo, JP
Miki Fujita(Representative Director & CEO)
Co-investorsAngel Bridge Co.,Ltd.Global BrainMPowerSpiral CapitalSpiral Innovation PartnersAozora Corporate Investment
IVRy develops and operates a conversational AI platform called "IVRy" that automates phone responses and workplace interactions.
AI & Machine LearningEnterprise SoftwareSaaS
Ryoga Okunishi(Founder)in
Co-investorsCoral CapitalFemto Partners
Mellow operates a platform that matches mobile shops such as food trucks (kitchen cars) with vacant spaces, connecting mobility-business operators with locations like offices and neighborhoods.
FoodTechLogistics & Supply ChainMarketplacesMobility & TransportationTokyo, JP
石澤(代表取締役社長兼CEO (President & CEO))
Co-investorsDentsu VenturesOpen Network LabPKSHA Technology Capital
Provides robotics-based automation solutions for retail.
Co-investorsDnx VenturesUTEC
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
AsobicaBe my friends Co., LtdBeer and TechBeerandtechCLUEcueemoleEXOFiddler LabsIVRyKAUCHELisseMellowMill Industries Inc.MOZUScalebaseSensaiSHESHE株式会社SORAJIMASuper Highway LabsUTAITEVoicy
Exits · 3
2 IPOs · 1 acquisitions · showing 2GRAILNASDAQ: GRALTwist BioscienceNASDAQ: TWST
Portfolio news
latest coverage across their companies
Overtime · finance.yahoo.com · Aug 22, 2026
Bemyfriends · en.wowtale.net · Aug 1, 2026
GRAIL · simplywall.st · Jul 17, 2026
Mill · marketbeat.com · Jul 15, 2026
Inworld AI · businesswire.com · Jun 10, 2026
LayerX · calcalistech.com · May 12, 2026
MOSH㈱ · venturecapital.com · May 7, 2026
Frequently asked questions
- How many investments has Prime Partners made?
- Prime Partners has 68 tracked investments, 3 of which have exited.
- What stage does Prime Partners invest at?
- Prime Partners invests at the Pre-Seed, Seed, Series A, Series B, Series C, Growth stages.
- What sectors does Prime Partners focus on?
- Prime Partners focuses on AI & Machine Learning, Biotech, Consumer, Crypto & Web3, E-commerce, EdTech, Enterprise Software, Fintech, Gaming, Hardware, Healthtech, Media & Entertainment, Mobility & Transportation, PropTech, Robotics, Sector Agnostic.
- Where is Prime Partners located?
- Prime Partners is headquartered in Tokyo, JP.
- Who does Prime Partners co-invest with?
- Prime Partners most often shares deals with Dentsu Ventures, Dnx Ventures, DBJ Capital, among 199 tracked co-investors.
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