What check size does Ronjon Nag write?

Ronjon Nag typically writes checks of $20K – $250K.

Where did Ronjon Nag go to school?

Ronjon Nag studied at Stanford University (DIstinguished Careers Institute Interdisciplinary Fellow, Center for the Study of Language and Information); MIT Sloan School of Management (S.M, Management Science); Stanford University (Harkness Fellow, Department of Psychology).

Ronjon Nag

Investor

Advisor, Stanford Lifestyle Medicine Group at Stanford University · Investor at Cambridge Angels group · Director at Bounce Imaging

Palo Alto, California

Writes $20K – $250K checks · typically $50K

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About

Dr. Ronjon Nag is founder and president of R42 Group, a family office and venture firm investing in AI, biotechnology, and science-stage companies, and serves as an advisor to Stanford University's Lifestyle Medicine Group. He holds an adjunct professorship in genetics at Stanford School of Medicine and a visiting fellowship at the Stanford Center for Language and Information, where he teaches courses spanning AI, genetics, ethics, and venture capital. Over four decades, Nag has founded or advised approximately 100 AI and biotechnology startups, with exits to Apple, BlackBerry, and Motorola, and holds fellowships with the Institution of Engineering and Technology and the Association for Computing Machinery.

Director at Bounce Imaging

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Bounce Imaging's investors · 13

Backstage CapitalLos Angeles · $50K checks · since 2022 Bantam GroupWestwood · since 2019 Berkeley Angel NetworkBerkeley · since 2019 Broad Street AngelsPhiladelphia · $25K – $1M checks · since 2019 Brown and White VenturesFairport · since 2019 DC Investment PartnersMcLean · $10M checks · since 2019 Good Growth CapitalCharleston · since 2019 Great Oaks Venture CapitalNew York · $50K – $500K checks · since 2019 In-Q-TelTysons · $100K – $2.5M checks · since 2019 Moai CapitalSan Mateo · $25K – $100K checks · since 2019 Monta Vista CapitalMountain View · since 2019 R42 GroupSan Francisco · since 2022 U.S. Air Forcesince 2019

Co-founders at Bounce Imaging

Francisco AguilarExecutive Officer, Director

Experience

Stanford UniversityAdvisor, Stanford Lifestyle Medicine Groupcurrent2025 — present
Stanford UniversityAdjunct Professor in Genetics in the School of Medicinecurrent2022 — presentStanford, California, United States
Stanford UniversityStanford Distinguished Careers Institute Interdisciplinary Fellowcurrent2015 — present
Stanford UniversityVisiting Fellow, Stanford Center for the Study of Language and Informationcurrent2018 — presentStanford, USA
capAI LtdDirectorcurrent2025 — presentPalo Alto, California, United States
R42 GroupFounder and Presidentcurrent2019 — presentPalo Ato, California
Ikshana Therapeutics Inc.CEO and Co-foundercurrent2024 — presentMountain View, California, United States
MIT Alumni Angels of Northern California & MIT Club of Northern CaliforniaDirectorcurrent2015 — presentPalo Alto
UC Berkeley Skydeck AcceleratorAdvisorcurrent2015 — present
Superbio.aiCEO and Co-Foundercurrent2021 — presentPalo Alto, California, United States
AGEMICAChief Executive Officer and Co-foundercurrent2023 — presentPalo Alto, California, United States
EcrioChairman Of The Boardcurrent2020 — presentSunnyvale, California, United States
GTCardioExecutive Directorcurrent2019 — presentPalo Alto, California
Bounce ImagingChairman Of The Board Of Directorscurrent2015 — presentBoston, Massachussetts
PayplantCo Foundercurrent2013 — presentPalo Alto, CA
Cambridge AngelsMembercurrent2014 — presentUnited Kingdom
IntrohiveInvestorcurrent2014 — present
Celeris TherapeuticsBoard Observer2021 — 2024Palo Alto, California, United States
Kitchology Inc.Advisory Board Member2015 — 2023Germantown, Maryland
Embee Mobile - acquired by SimilarWebChairman2013 — 2021San Francisco Bay Area
BrightswitchFounder2015 — 2021Palo Alto, CA
Ersatz LabsChairman & Co-Founder2014 — 2016Pacifica, CA
VocalIQ (acquired by Apple)Advisory Board Member2015Cambridge, United Kingdom
BlackBerryVice President App World & Intelligent Systems Group2010 — 2013
Cellmania (acquired by RIM)CEO/Co-Founder1999 — 2013Mountain View, California
Lexicus, Inc. (acquired by Motorola)CEO/oo-founder1992 — 1999Palo Alto, California
Lexicus, Inc. (acquired by Motorola)VP & General Manager1993 — 1999Palo Alto, California

Skills & more

Artificial Intelligence (AI)Mobile Technology99Start-ups99Mobile Applications67Strategy34Global Business Development30Entrepreneurship32Product Marketing27Go-to-market Strategy26Telecommunications15VAS15Cloud Computing15

+12 more

Mobile PaymentsBusiness StrategyData MiningMobile MarketingWireless TechnologiesUser ExperienceVenture CapitalAnalyticsSaaSAndroidGSMSoftware as a Service (SaaS)

Lovable
Life Member — ACM, Association for Computing Machinery
Chartered Engineer — Engineering Council
Fellow — Institution of Engineering and Technology (IET)
Senior Member — IEEE
Machine Learning — Coursera

From Ronjon's professional profile.

Investments

Investor

Celeris TherapeuticsCivil Maps ExogeneHayden AIHealxIntrohiveMoleculePrecision medicineSoopra.AIStamp FreeWiseWorks

Per curated public sources.

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Colleagues at Stanford University

Alan Ma

Campus Lead at The MBA Fund

Alex Gould

General Partner at The Valley Fund

Aman Verjee

General Partner at Practical Venture Capital

Amit Etkin

Founder at Alto Neuroscience

Amy Chang

Founder, Accompany at Decibel Partners

Anand Lalwani

Angel at Wispr AI

Andrew Ng

Managing General Partner at AI Fund

Anjney Midha

General Partner at Andreessen Horowitz

Frequently asked questions

Who is Ronjon Nag?: Dr. Ronjon Nag is founder and president of R42 Group, a family office and venture firm investing in AI, biotechnology, and science-stage companies, and serves as an advisor to Stanford University's Lifestyle Medicine Group. He holds an adjunct professorship in genetics at Stanford School of Medicine and a visiting fellowship at the Stanford Center for Language and Information, where he teaches courses spanning AI, genetics, ethics, and venture capital. Over four decades, Nag has founded or advised approximately 100 AI and biotechnology startups, with exits to Apple, BlackBerry, and Motorola, and holds fellowships with the Institution of Engineering and Technology and the Association for Computing Machinery.
Where does Ronjon Nag work?: Ronjon Nag is Advisor, Stanford Lifestyle Medicine Group at Stanford University.
What check size does Ronjon Nag write?: Ronjon Nag typically writes checks of $20K – $250K.
What companies has Ronjon Nag invested in?: Investments tracked here include Celeris Therapeutics, Civil Maps, Exogene, Hayden AI, Healx, Introhive, Molecule, Precision medicine, Soopra.AI, Stamp Free, WiseWorks.
Where did Ronjon Nag go to school?: Ronjon Nag studied at Stanford University (DIstinguished Careers Institute Interdisciplinary Fellow, Center for the Study of Language and Information); MIT Sloan School of Management (S.M, Management Science); Stanford University (Harkness Fellow, Department of Psychology).