Fundraising Fox

Prime Partners

Venture capital

Tokyo · Pre-Seed–Growth

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 Aug 3, 2026.

Stage
Pre-Seed–Growth
HQ
Tokyo, JP
Instruments
Equity
Founded
2014
Tracked investments
67

What they invest in

from 37 of 67 portfolio companies

AI & Machine Learning ×16SaaS ×11Enterprise Software ×9Biotech ×6Consumer ×5Gaming ×5Healthtech ×5Data & Infrastructure ×4

HQs:United States×16Japan×14Germany×1

Who they back

founder profiles across 28 portfolio companies
50%
solo founders
14 of 28 mapped founding teams
46%
repeat founders
of 24 founders with career history

Founding team size:solo founder×142 founders×63 founders×64+ founders×2

Where their founders studiedfrom 23 founders with education data

Indian Institute of Technology, Kharagpur ×2Keio University ×2McGill University ×2Novosibirsk State University (NSU) ×2Rutgers University ×2

Where their founders worked beforefrom 24 founders with career history

Facebook ×2Oracle ×2

4 founders hold a PhD · 3 hold an MBA (of 22 with degree data)

Investments · 67 tracked

founders shown can be your intro path
GRAILgrail.comin𝕏NASDAQ: GRAL

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

Twist Biosciencetwistbioscience.comin𝕏NASDAQ: TWST

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

Emily Marine Leproust(Executive Officer, Director, Promoter)William Charles Banyai(Executive Officer, Director, Promoter)Bill James Peck(Executive Officer, Promoter)Emily Leproust(Founder)in

BoardKeith Crandell(Director)Paul Conley(Director)in

Co-investors+ND Capital3E Bioventures CapitalARCH Venture PartnersAsset Management CompanyBay City CapitalBlack Opal Ventures+7 more

agoloagolo.com

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

Astrobloxastrocade.com𝕏

Astrocade appears to be a gaming platform that hosts games and features creators with follower or player counts.

Creator EconomyGamingSocial

Co-investorsChaac VenturesDentsu VenturesLG Technology VenturesThe Venture Reality Fund

Be my friends Co., Ltd

Operates global fandom platform 'b.stage'.

Beer and Tech

Operates online flower and greenery store 'HitoHana'.

Beerandtechbeerandtech.com
Bemyfriendsbemyfriends.comin

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 Labsclearlabs.comin

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 VenturesDentsu VenturesFelicis VenturesNimble Partners+5 more

Credit Enginecreditengine.jp

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 Capital

cue

Develops healthcare solutions enabling analysis of molecular-level bio data.

Double Jump Tokyodoublejump.tokyoMay 2022

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 matsuyainYukinori Matsuya(Director)Takashi Fujishima(Director)Ryo Manzoku(Director)Hiroyuki Kawamoto(Director)

Co-investorsDentsu VenturesFenbushi CapitalZ Venture CapitalSBI Investment

emole

Operates short-drama app 'BUMP'.

EXO

Develops health foods using cricket flour (cricket-extracted protein).

Exoproteinexoprotein.com𝕏

EXO produces protein bars and cricket powder supplements made from acheta (cricket) protein.

ConsumerDirect to ConsumerFoodTechHealthtechWellness & Fitness

Co-investorsDentsu VenturesWakestream Ventures

Fiddler AIfiddler.aiin𝕏

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 InvestmentsDentsu VenturesE12 Venture Capital, Llc+20 more

Fiddler Labs

Develops a performance management platform.

FOLIOfolio-sec.com𝕏

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㈱forest-inc.jpin𝕏

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.Nordstar

Geltorgeltor.comin𝕏

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)inAlex Lorestani(Co-founder)

Co-investorsAgronomicsAlwyn CapitalArgonautic VenturesBaruch Future VenturesBlue Horizon CorporationCavallo Ventures+12 more

High Link.Cohigh-link.co.jp

Operates fragrance platform 'Coloria'.

Co-investorsW Inc.

Inworld AIinworld.aiin𝕏

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

IVRy

Provides the phone DX service 'IVRy'.

Co-investorsFemto PartnersJIC Venture Growth Investments

KAUCHE

Operates group-buying app 'Kauche'.

Kognitoskognitos.comin𝕏

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 Sher Gill(Executive Officer, Director)Binny Gill(Founder)in

BoardAshmeet Sidana(Director)in

Co-investorsClear VenturesEngineering CapitalFin CapitalKhosla VenturesDentsu VenturesProsperity7 Ventures+1 more

LayerX
Lisse

Provides AI contract review SaaS 'LeCHECK'.

LiveLikelivelike.comin

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 technologiesmatsuri.tech

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

Mellow

Operates 'SHOP STOP', a platform dispatching mobile shops (mainly food trucks) to varied locations, partnered with 1,000+ shops.

Co-investorsOpen Network Lab

Millmill.comin

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

Matt Rogers(Founder & CEO)Harry Tannenbaum(Founder)inMatthew Rogers(Founder)in

Co-investorsBreakthrough Energy VenturesBuckhill CapitalCleo CapitalEnergy Impact PartnersGigascale CapitalGV (Google Ventures)+7 more

Mill Industries Inc.

Develops smart disposer 'OSCAR' and a circular economy platform.

MOSH㈱mosh.jp𝕏

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

Co-investorsDBJ CapitalGlobal BrainJIC Venture Growth InvestmentsKDDI Open Innovation FundSumisho Venture PartnersGenesia Ventures+2 more

MOZUmozu-inc.jp

Co-investorsSpiral Capital

Mysten Labsmystenlabs.comin𝕏

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)Sam Blackshear(Founder)Evan Cheng(Founder)in

Co-investorsa16z cryptoAlumni VenturesAndreessen HorowitzArrington CapitalBasecamp FundBig Brain Holdings+21 more

Neallenealle.com

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 Capital

nextbitnextbit.com

Developed cloud-first smartphone 'Robin'.

Co-investorsAccel

Overtimeovertime.tv𝕏

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+14 more

Scalebase

Develops a platform to optimize and maximize revenue for subscription businesses.

Senssens.aiin

Sens.ai measures functional brain age using EEG+ERP assessments and provides personalized training programs to improve cognitive function.

AI & Machine LearningDigital HealthHealthtech

Sensai

Develops an AI-powered unstructured big data analysis platform.

SHE

Provides career schools for millennial women.

SHE株式会社she-inc.co.jp

Co-investorsKDDI Open Innovation Fundmint VCMPower

Skyflowskyflow.comin𝕏

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 CapitalMouro CapitalMS&AD Ventures+2 more

Solstensolsten.ioin

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)

Co-investorsDentsu VenturesGFR FundKonvoy VenturesSisu Game VenturesSupernode GlobalDecathlon Capital Partners+1 more

SORAJIMA

Plans and produces vertical full-color smartphone webtoons.

Super Highway Labs

Provides on-demand smart mobility service 'Shuttle' via mobile app.

Surviossurvios.com𝕏

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

TechTouchtechtouch.jp

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

Two Bit Circustwobitcircus.comin𝕏

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)

BoardRyan McIntyre(Director)Mark Solon(Director)

Co-investorsDentsu VenturesJAZZ Venture Partners

Tynkertynker.comin𝕏Acquired

Tynker is a digital learning platform providing coding curriculum and courses for children through schools and parents.

AI & Machine LearningEdTechChicago, US

Kelvin ChongKrishna VedatiinSrinivas Mandyam

Co-investors500 GlobalDentsu VenturesFelicis VenturesGSV VenturesNew Ground VenturesNew Ground Ventures+2 more

Upside Foodsupsidefoods.comin

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

UTAITE
Valt Japanvalt-japan.com𝕏

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

Voicyvoicy.jp

Co-investorsDentsu Ventures

ZymoChemzymochem.comin𝕏

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)

Co-investorsAccelr8Breakout LabsBreakout VenturesCavallo VenturesDudley FundFreshTracks Capital+7 more

Exits · 2

IPOs and acquisitions across the tracked portfolio

GRAILNASDAQ: GRALTwist BioscienceNASDAQ: TWST

Portfolio news

latest coverage across their companies

Frequently asked questions

How many investments has Prime Partners made?
Prime Partners has 69 tracked investments, 4 of which have exited via acquisition or IPO.
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 198 tracked co-investors.

Images

Prime Partners photo

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