John Vrionis
InvestorCo-Founder & Managing Partner at Unusual Ventures · Co-founder/Partner, Unusual Ventures at Resolve AI · Board director at Rime · Board director at Rasgo Intelligence
Menlo Park, California
Writes $100K – $15M checks · typically $250K
About
Co-founder of Unusual Ventures who was Jyoti Bansal's first investor at AppDynamics; has invested in over 30 startups reaching billion-dollar outcomes and teaches product-market fit at Stanford GSB.
Contact· self-published, not guessed
Likely emails· guessed from name + firm domain, not firm-published
- j•••@unusual.vcreveal100% confident
- j•••@unusual.vcreveal70% confident
Invests in
AI & Machine LearningCybersecurityData & InfrastructureDeveloper ToolsEnterprise SoftwareFintechSaaS
Beyond investing
- Founded
- Vrionis founded Unusual Ventures, an early-stage venture capital firm.
- Education
- Studied at Stanford Graduate School of Business (MBA, 2006) Studied at University of Chicago (MS, Computer Science, 2001) Studied at Harvard University (AB, Economics, 1997)
- Communities
- Vrionis is a faculty affiliate at Stanford GSB's Center for Entrepreneurial Studies and a guest lecturer for CS 210 at Stanford University. Vrionis is an adjunct professor at the University of Notre Dame.
- Hobbies
- Vrionis played professional soccer in the USA and UK from 1997 to 1999.
- More
- Vrionis is originally from Georgia.
Mentioned above: the University of Chicago mafia → · the Unusual Ventures mafia →
From published sources — common ground for a warm intro.
Co-founder/Partner, Unusual Ventures at Resolve AI
Intro paths
→
In turn, John can intro founders to Resolve AI's investors below.
Resolve AI's investors · 9
A*San Francisco · $500K – $3M checksAmjad MasadArtisanal VenturesTiburonDST GlobalGeorge Town, Grand Cayman · $100K – $200M checks · since 2026Greylock PartnersSan Francisco · $100K – $200M checksLightspeed Venture PartnersMenlo Park · $1.7M – $87M checksSalesforce VenturesSan Francisco · $5M – $50M checks · since 2026Srinivas NarayananUnusual VenturesMenlo Park · $1M – $15M checks
Co-founders at Resolve AI
SX
Spiros XanthosFounder and CEO
MA
Mayank AgarwalFounder and CTO
Board director at Rime
Intro paths
→
In turn, John can intro founders to Rime's investors below.
Rime's investors · 7
Corazon CapitalChicago · $150K – $500K checks · since 2026M13New York · $4M – $7M checks · since 2026M13 VenturesBeverly Hills · since 2026Moth FundSan FranciscoSEEDRA VenturesRiyadh · $120K – $35M checks · since 2026Twilio Ventures$1M – $5M checks · since 2026Unusual VenturesMenlo Park · $1M – $15M checks · since 2026
Co-founders at Rime
LC
Lily CliffordExecutive Officer, Director
BL
Brooke LarsonFounder
Board director at Rasgo Intelligence
Intro paths
→
In turn, John can intro founders to Rasgo Intelligence's investors below.
Rasgo Intelligence's investors · 1
Co-founders at Rasgo Intelligence
JP
Jared ParkerExecutive Officer, Director
CP
Charles Patrick DoughertyExecutive Officer, Director
Experience
- Stanford University Graduate School of BusinessLecture Faculty - Entrepreneurshipcurrent2024 — presentPalo Alto, CA
- Unusual VenturesFounder and Managing Partnercurrent2018 — presentSan Francisco Bay Area
- Lightspeed Venture PartnersGeneral Partner2006 — 2017Menlo Park, California
- Determina, Inc. (acq VMware)Product Management2004 — 2005
- AchieveDirector of Product Management2003 — 2005San Mateo, California, United States
- ABN AMRO Venture CapitalSr. Associate2000 — 2003
- Professional SoccerSoccer1997 — 1999US, England
Skills & more
SaaS10Enterprise Software33Product Management44Venture Capital26Entrepreneurship39Security7Data Center6Storage4Entrepreneur2Networking3Business Planning6Start-ups41
+9 more
Cloud ComputingE-commerceProduct MarketingMobile DevicesStrategic PartnershipsBusiness DevelopmentBusiness IntelligenceStrategic PlanningManagementFrom John's professional profile.
Deals · 4
CLOUDBEES, INC.Board seat
via Unusual Ventures · filed Jul 2024 · $966K raise
DataStaxBoard seat
via Unusual Ventures · filed May 2021 · $37.6M raise
ArriktoBoard seat
via Unusual Ventures · filed Aug 2020 · $10M raise
Rasgo IntelligenceBoard seat
via Unusual Ventures · filed Jul 2020 · $5M raise
Attribution from SEC filings, press coverage, and firm rosters.
Other disclosed investments
Board seats
Sources: SEC Form D filings · the firm's website · curated public sources.
Colleagues at Unusual Ventures
Andy Youn
Director of Finance at Unusual Ventures
Bill Hodak
Investor at Unusual Ventures
Brett Teele
Chief Financial Officer & Partner at Unusual Ventures
Calvin Ling
Founding Principal at Prefix Capital
Calvin Ling
Vice President of Finance at Unusual Ventures
Doug Regner
Investor at Unusual Ventures
Eric Peter
Venture Partner and AI Specialist at Blockchain Builders
Henry Buckingham
Vice President at Unusual Ventures
Network4
Andy Johns
Partner at Unusual Ventures
Andy Price
Founder, General Partner at Artisanal Ventures
Carlos Neto
Investor at Bright Pixel Capital
Eric Peter
Venture Partner and AI Specialist at Blockchain Builders
Investors connected to John in public investor directories — a warm-intro map.
Frequently asked questions
- Who is John Vrionis?
- Co-founder of Unusual Ventures who was Jyoti Bansal's first investor at AppDynamics; has invested in over 30 startups reaching billion-dollar outcomes and teaches product-market fit at Stanford GSB.
- Where does John Vrionis work?
- John Vrionis is Co-Founder & Managing Partner at Unusual Ventures and Co-founder/Partner, Unusual Ventures at Resolve AI and Board director at Rime and Board director at Rasgo Intelligence.
- What does John Vrionis invest in?
- John Vrionis invests in AI & Machine Learning, Cybersecurity, Data & Infrastructure, Developer Tools, Enterprise Software, Fintech, SaaS.
- What check size does John Vrionis write?
- John Vrionis typically writes checks of $100K – $15M.
- What boards does John Vrionis sit on?
- John Vrionis holds tracked board seats at Arrikto, CLOUDBEES, INC., DataStax, Rasgo Intelligence, Rime.
- What companies has John Vrionis invested in?
- Investments tracked here include AppDynamics, Arctic Wolf Networks, Carta, Chalk, Hallow, Harness, Liftoff.io, Mulesoft, Neon, Nicira, Nimble Storage, Pinterest, and 2 more.
- Where did John Vrionis go to school?
- John Vrionis studied at Stanford University Graduate School of Business (MBA, General Management); University of Chicago (MS, Computer Science); Harvard University (BA, Economics).
Founder mafias
Stanford University Graduate School of Business mafia267
Also came through, then founded or led a company.
Steve JurvetsonMaster of Business Administration (MBA)Founded Mojo VisionTony XuMBAFounded DoorDashDavid VélezMBAFounded NubankMatt RouifStanford Ignite (Summer Institute for Entrepreneurship)Founded Photoroom +3IanMaster of Business Administration (M.B.A.)Founded Immunity Project +2Mikhail KokorichStanford Executive ProgramFounded Destinus +2
+ 260 more
University of Chicago mafia102
Also came through, then founded or led a company.
Bobby PittmanMaster's degreeFounded Oathafrica +2Sean HarperABFounded TransFS +2Bharat KilaruBachelor of Arts (BA)Founded Verano Health +2Matt KrisiloffFounded Preventive +1Robby YungB.A. cum laudeFounded The Sandbox +1Alexis BorisyBachelor's degreeFounded Foundation Medicine +1
+ 95 more
Lightspeed Venture Partners mafia16
Also came through, then founded or led a company.
Semil ShahVenture PartnerFounded HaystackGuru ChahalPartnerFounded Avi NetworksNnamdi IregbulemPartnerFounded GitLabEduardo AbeliukFellowFounded TeselaGenDavid WadhwaniCEO CouncilFounded AppDynamicsAaron BatalionGeneral PartnerFounded Livingsocial
+ 9 more
Unusual Ventures mafia8
Also came through, then founded or led a company.
Jyoti BansalCo-Founder & Entrepreneur PartnerFounded Traceable +2Lars AlbrightGeneral PartnerFounded Session MSarah LearyVenture PartnerFounded Nextdoor (NYSE: 2021)Wei Lien DangGeneral PartnerFounded StackroxMoe KhalilUniversity Founder FellowFounded WebhoundSukrut OakFellowFounded LogosGuard
+ 1 more
Same school
Also attended Stanford University Graduate School of Business1,385
Roelof BothaAdvisor & former Steward at Sequoia Capital; SpaceX board memberPeter FentonGeneral Partner at BenchmarkSteve JurvetsonCo-founder of Future VenturesDavid SzeAdvisory Partner at GreylockKatherine BoyleGeneral Partner at Andreessen Horowitz (American Dynamism)Hunter WalkCo-founder & Partner at Homebrew
+ 1,379 more
Also attended University of Chicago349
Mark SusterManaging Partner at Upfront VenturesShardul ShahInvestor at Index VenturesSam BlackmanEntrepreneur in Residence at GV (Google Ventures)Clay FisherInvestor at Spark CapitalJonas CiplickasPrincipal at Scale Venture PartnersJulia Gonzalez SandersPartner and General Counsel at Crosslink Capital
+ 343 more
Also attended Harvard University1,558
Alfred LinPartner at Sequoia CapitalChris DixonFounder & Managing Partner of a16z crypto at Andreessen HorowitzSarah TavelVenture Partner at BenchmarkDanny RimerPartner at Index VenturesLaela SturdyManaging Partner at CapitalGBill GatesCo-founder of Microsoft; Chair of the Gates Foundation
+ 1,552 more
Shared employers
Also worked at Stanford University Graduate School of Business180
Michael McBrideInvestor at GV (Google Ventures)Elliot GeidtManaging Director at Redpoint VenturesRenee ShahPartner at Redpoint VenturesDeena ShakirPartner at Lux CapitalBlair ShaneInvestor at IVP (Institutional Venture Partners)Jules MaltzInvestor at IVP (Institutional Venture Partners)
+ 174 more
Also worked at Lightspeed Venture Partners116
Jeremy LiewPartner at Lightspeed Venture PartnersKishen PatelInvestor at GreycroftSemil ShahInvestor at HaystackMichael MignanoGeneral Partner at Union Square Ventures (USV)Mark XuInvestor at Index VenturesAdrian RaduInvestor at Khosla Ventures
+ 110 more
Also worked at Achieve2
Also worked at ABN AMRO Venture Capital148
Iris WiggersFINANCE at Cottonwood Technology FundSally AppletonInvestor at Index VenturesKyang YungInvestor at DaphniKobeFinance Director at Hummingbird VenturesNesbit WestAdvisor - Fund Compliance at Keen Venture PartnersNichapat ArkDirector, Head of Thailand at Openspace Ventures
+ 142 more