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
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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 26, 2026.
Team · 4 people
from public directoriesWhat they invest in
from 38 of 67 portfolio companiesAI & Machine Learning ×17SaaS ×12Enterprise Software ×10Biotech ×6Consumer ×5Gaming ×5Healthtech ×5Creator Economy ×4
HQs:United States×16Japan×15Germany×1
Who they back
founder profiles across 35 portfolio companiesFounding team size:solo founder×142 founders×83 founders×94+ founders×4
Where their founders studiedfrom 37 founders with education data
Princeton University ×3University of Mumbai ×3Doshisha University ×2Indian Institute of Technology, Kharagpur ×2Keio University ×2McGill University ×2Novosibirsk State University (NSU) ×2Rutgers University ×2
What their founders studiedfrom 35 founders with field-of-study data
Computer Science ×12Engineering ×5Business & Management ×3Life Sciences ×3Economics ×2
Where their founders worked beforefrom 39 founders with career history
Microsoft ×4Google ×3Meta ×3AT&T Interactive ×2Oracle ×2Speaktoit ×2
10 founders hold a PhD · 4 hold an MBA (of 40 with degree data)
Investments · 67 tracked
founders shown can be your intro pathBy year:2026 · 12024 · 12023 · 12022 · 14 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 LearningBiotechDigital HealthHealthtechMedical DevicesMenlo Park, US
Jeffrey T. Huber(Director)Joshua Ofman, MD, MSHS(Chief Executive Officer)inAaron Freidin(Executive Officer)inRobert Ragusa(Executive Officer, Director)Jennifer Cook(Executive Officer, Director)inRichard Klausner(Director)
Co-investorsAmino CapitalARCH Venture PartnersBezos ExpeditionsBluebird VenturesDecheng CapitalDentsu Ventures+13 more
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 Leproust, PhD(CEO and Co-Founder of Twist)Patrick Finn(President and Chief Operating Officer)inAdam Laponis(Chief Financial Officer)in
Co-investors+ND Capital3E Bioventures CapitalARCH Venture PartnersAsset Management CompanyATEL VenturesBay City Capital+10 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
Alan Jacobson(Chief Executive Officer)Mohamed AlTantawy(Founder)Sage Wohns(Founder)
Co-investorsAAF Management Ltd.Basecamp FundCerity Partners VenturesDentsu VenturesM12 (Microsoft's Venture Fund)Point72 Ventures+8 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 VenturesPamir 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 AvenueCrit VenturesSpark Labs Korea Accelerator Fund 4AMUSE
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(Founder)inRamin Khaksar(Founder)inEdward Fan(Executive Officer)inBrodie Flanders(Executive Officer, Director)Kazutaka Ohno(Executive Officer)Farzad Naimi(Executive Officer, Director)
Co-investorsMenlo VenturesKhosla VenturesNimble VenturesAlumni VenturesCastor VenturesDentsu Ventures+13 more
Roof/exterior inspection app; also builds drone-based construction management and view-photography apps.
Co-investorsAG Capital Co. Ltd.Canal VenturesDelight VenturesDentsu VenturesDIMENSIONDRONE FUND+7 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
Covid test maker that went public at a $2.3 billion valuation.
Clint Sever(Founder)in
Co-investorsACME CapitalDarwin CapitalDecheng CapitalDentsu VenturesForesite CapitalMothership VC+4 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 Capitalgumi IncTaisu VenturesZ Venture CapitalJAFCO Group+1 more
Operates short-drama app 'BUMP'.
Co-investorsAngel Bridge Co.,Ltd.Dentsu VenturesSamurai IncubateAozora Corporate 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)inAmit Paka(Founder)in
BoardRaviraj Jain(Director)inBilal Zuberi(Director)inGeorge Mathew(Director)in
Co-investorsAngel Collective Opportunity FundaVentureBenhamou Global VenturesBloomberg BetaCisco InvestmentsDallas Venture Capital+23 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 VenturesRakuten Capital
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(Founder)inMasafumi Nishizawa(Founder)
Co-investorsDBJ CapitalDentsu VenturesJapan Post Capital Co. Ltd.NordstarUTECFen Ventures+3 more
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(Founder)inNicholas Ouzounov(Founder)
Co-investorsAgronomicsAlwyn CapitalArgonautic VenturesBaruch Future VenturesBlue Horizon CorporationBoxGroup+19 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-investorsA-Force VenturesBitkraft Esports VenturesBrave CapitalCRV (Charles River Ventures)Dentsu VenturesDisney Accelerator+16 more
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 PartnersJIC Venture Growth InvestmentsHeadline
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 VenturesAlumni VenturesDentsu 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-investorsDell Technologies CapitalDIMENSIONGlilot Capital PartnersJIC Venture Growth InvestmentsCoreline VenturesJAFCO Group+2 more
LiveLike is a New York-based fan engagement platform providing interactive and gamification tools for sports broadcasters and media companies.
Marketing TechMedia & EntertainmentSaaSNew York City, US
Miheer Walavalkar(Founder)in
Co-investorsBigfoot CapitalComcast VenturesCourtside VenturesDentsu VenturesScrum VenturesTechstars+4 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.NextblueOpen Network LabRegional Revitalization Solution+1 more
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)inHarry Tannebaum(Founder)Matt Rogers(Founder)
Co-investorsBreakthrough Energy VenturesBuckhill CapitalCleo CapitalEnergy Impact PartnersGigascale CapitalGV (Google Ventures)+9 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)inGeorge Danezis(Founder)Kostas Chalkias(Founder)
Co-investorsa16z cryptoAlumni VenturesAndreessen HorowitzArrington CapitalBasecamp FundBig Brain Holdings+38 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
Developed cloud-first smartphone 'Robin'.
Co-investorsAccelDentsu VenturesGV (Google Ventures)Dentsu
Operates a cross-border business platform.
Tomonari Hamano(Founder)in
Co-investorsDentsu VenturesDIMENSIONDnx VenturesGlobis Capital PartnersJapan Post Capital Co. Ltd.JIC Venture Growth Investments+2 more
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.
ConsumerCreator EconomyMedia & EntertainmentSports TechBrooklyn, US
Zachary Weiner(Founder)inZack Weiner(Founder)inDan Porter(Founder)
Co-investors359 CapitalAndreessen HorowitzBezos ExpeditionsBlack CapitalSpark CapitalWinslow Capital+30 more
Provides career schools for millennial women.
Eri Fukuda(Founder)in
Co-investorsGlobal BrainMPower
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(Founder)inRoshmik Saha(Founder)inAmruta Moktali(Chief Product Officer)inKen Laversin(Chief Revenue Officer)inDaniel Wong(Head of Security Engineering)inPrakash Khot(Founder)
Co-investorsCanvas VenturesDentsu VenturesFirestreak VenturesFoundation CapitalInsight PartnersMouro Capital+3 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 FundInventureKonvoy VenturesMilkbox Partners+6 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)inNathan Burba(Founder)inGraham Matuszewski(Founder)Alex Silkin(Founder; Chief Technology Officer)inSeth Gerson(Chief Executive Officer)in
Co-investorsDentsu VenturesEastward Capital PartnersLux CapitalQualcomm VenturesSamsung NextDanhua Capital+2 more
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 VenturesNTT DOCOMO VenturesSony Ventures Corporation+1 more
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 GlobalCervinDentsu VenturesFelicis VenturesGSV VenturesNew Ground Ventures+4 more
Upside Foods produces cultivated meat using cell-based technology.
BiotechFoodTechSan Francisco, US
Uma Valeti(Founder)inNicholas Genovese(Founder)Will Clem(Founder)
Co-investorsAlwyn CapitalBoxGroupCPT CapitalDentsu VenturesFifty YearsFuture Ventures+14 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 CapitalGlobal BrainZ Venture Capital
Voice x technology company aiming to build an exciting society.
Co-investorsDentsu VenturesGlobal BrainTBS Innovation Partners
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)inLindy Fishburne(Director)Phil Grayeski(Director)Taehong Huh(Director)Timothy Dummer(Executive Officer, Director)
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-investorsAG Capital Co. Ltd.Delight VenturesDentsu VenturesGlobal BrainMobile Internet Capital, Inc.New Commerce Ventures+1 more
Kakehashi develops digital transformation software for pharmacies in Japan, serving the country's roughly 60,000 dispensing pharmacies.
Digital HealthHealthtechSaaS
Takashi Nakagawa(Founder)Yutaka Nakao(Founder)Satoshi EbiharaShingo Ito
Co-investors500 GlobalAozora Corporate InvestmentCoral CapitalDentsu VenturesDnx VenturesGlobis Capital Partners+5 more
Japanese manga publisher and Webtoon studio producing original vertical-scroll comics distributed in 11 countries.
Tokyo, JP
前田儒郎(Founder)in
Co-investorsAtinum Investment Co. Ltd.CyberAgent CapitalDBJ CapitalDentsu VenturesFunds StartupsGlobal Brain+4 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
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 TechBeerandtechcueEXOFiddler LabsKAUCHELisseMellowMill Industries Inc.MOZUScalebaseSensaiSHE株式会社SORAJIMASuper Highway LabsUTAITE
Exits · 3
2 IPOs · 1 acquisitions · showing 2GrailNASDAQ: GRALTwist BioscienceNASDAQ: TWST
Portfolio news
latest coverage across their companies
Kognitos · kognitos.com · Apr 10, 2026
Fiddler AI · thesaasnews.com · Jan 30, 2026
Geltor · geltor.com · Oct 13, 2025
Solsten · thesaasnews.com · Sep 30, 2025
Frequently asked questions
- How many investments has Prime Partners made?
- Prime Partners has 67 tracked investments, 3 of which have exited, including 1 dated in the last 24 months.
- What stage does Prime Partners invest at?
- Prime Partners invests at the Pre-Seed, Seed, Series A, 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, Global Brain, Dnx Ventures, among 246 tracked co-investors.
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