Investing Profile

Alex Rosen(3)

VC
Managing Director and Co-Founder at Ridge Ventures
Photo of Alex Rosen, Managing Partner at Ridge Ventures (Formerly known as IDG Ventures USA)
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Networks Alex is a member of
Stanford University Graduate School of Business Network
365 CONNECTIONS
Massachusetts Institute of Technology Network
249 CONNECTIONS
Credit Suisse Network
89 CONNECTIONS
Stanford University Graduate School of Business Network
71 CONNECTIONS
General Atlantic Network
47 CONNECTIONS

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Current Investing Position
Ridge Ventures (Formerly known as IDG Ventures USA) Managing Partner
Investments On Record
63
Current Fund Size
$130M

Alex Rosen's Investments On Record (42)

CompanyStageDateRound SizeTotal Raised
GoodDay Software
Series UnknownJan 2026$7M
$7M
Co-investors: Amish Jani (Self-employed), Alexander Rosen (Ridge Ventures (Formerly known as IDG Ventures USA))
Flip CX
Series AJan 2026$20M
$29M
Co-investors: Eric Wiesen (Bullpen Capital), Aaron Schildkrout (Addition), Michael Cardamone (Forum Ventures), Alexander Rosen (Ridge Ventures (Formerly known as IDG Ventures USA)), Andrew Jones
Besty AI
SeedAug 2024$2M
$2M
Co-investors: Matthew Ziskie (Bungalow Capital), Akriti Dokania (Ridge Ventures (Formerly known as IDG Ventures USA)), Alexander Rosen (Ridge Ventures (Formerly known as IDG Ventures USA)), David Ambrose (Steadfast Venture Capital), Ravi Belani (Extensity (IPO'd, then acq by Geac))
OfferFit
Series BNov 2023$25M
$39M
Co-investors: Alex Clayton (Meritech Capital Partners), Mike Ghaffary (Canvas Ventures), Bradley Horowitz (Google Ventures), JP (Jean-Paul) Sanday (Menlo Ventures), Nadav Ben-Chanoch (Pareto Holdings), Alexander Rosen (Ridge Ventures (Formerly known as IDG Ventures USA)), Michael Stoppelman (Xtripe Angels), Edward Lando (Biowear), Katelyn Donnelly (Avalanche VC), Jeremy Stoppelman (Yelp.com), Tushar Garg, Frederic Kerrest, Ryan Carlson, Kevin Stumpf, Ron Pragides
SafeGraph
Series BMar 2021$45M
Series AApr 2017$16M
$61M
Co-investors: Chris Scoggins (SignalFire), Paul Levine (Sapphire Ventures), Peter Thiel (Founders Fund), Cathy Gao (Sapphire Ventures), Chris Farmer (SignalFire), Fabrice Grinda (FJ Labs), Jeff Epstein (Bessemer Venture Partners), Julia Popowitz (Broadway Angels), Jonathan Abrams (8-Bit Capital), Naval Ravikant (Sm4rt Predictive Systems), Alexander Rosen (Ridge Ventures (Formerly known as IDG Ventures USA)), Itamar Novick (Recursive Ventures), Robert Pittman (iHeartMedia), Steve Drobny (Clocktower Technology Ventures), Jack Abraham (Atomico), Jonah Goodhart (WGI Group), Jonathan Swanson (Thumbtack), Tom Chavez (super{set}), Tod Sacerdoti (Flex Capital, LLC // Turbo Ventures, LLC), Jonathan Sands (Artist Capital), Brett Hurt (Austin Ventures), Shruti Gandhi (Array Ventures), Aniq Rahman (Mindfull Investors), Will Harbin (KIXEYE), Scott Faber (Betabrand), Ethan Beard (Piazza Venture Labs), Mike Greenfield (TeamRankings.com), Jared Friedman (Israel Defense Forces), Brad Garlinghouse (Ripple VC), Matthew Cowan (Next47), Doug Chertok (Vast Ventures), Adrian Aoun, Joel Hornstein, Adam D'Angelo, Russell Fradin, Adam Foroughi, George Garrick, Kim Perell, Russ Fradin, Saran Chari, Joe Zawadzki, Brian O'Kelley, Nicolas Berggruen, Eric Chernoff
Horizon3.ai
SeedJan 2020$4M
$280M
Co-investors: Ilya Kirnos (SignalFire), Aaron Jacobson (New Enterprise Associates (NEA)), Alexander Rosen (Ridge Ventures (Formerly known as IDG Ventures USA)), Dorin Baniel (NightDragon)
Outlier
Series BJan 2020$22M
Series AJul 2018$6M
$78M
Co-investors: Leo Polovets (Susa Ventures), John Lyman (GV (Google Ventures)), Neil Sirni (Proximity Ventures), Stephen Francis (Arrive), Brad Greenwald (Hilltop Venture Partners), Alexander Rosen (Ridge Ventures (Formerly known as IDG Ventures USA)), Marc Ladin (PVCP), Josef Feldman (Tectonic Capital)
Tempered
Series UnknownMay 2019$17M
Series UnknownDec 2017$7M
Series BAug 2016$10M
Series AMar 2015$20M
$54M
Co-investors: Alexander Rosen (Ridge Ventures (Formerly known as IDG Ventures USA)), John Connors (Ignition Partners)

Alex Rosen's Experience

Managing Director and Co-Founder Ridge Ventures (Formerly known as IDG Ventures USA)2006 - Present
Board Member UpLift Inc.Present
GSB Trust Board Member. Chair, Venture Fund Group Stanford University Graduate School of BusinessPresent
Board Member KazooPresent
Board Member VidiblePresent
Board Member MindMeld, IncPresent
Board Member MintedPresent
Board Member SmartlingPresent
Junior Associate General AtlanticPresent
Investor ThirdLovePresent
Seed Investor Horizon3.aiPresent
Board Member Krux DigitalPresent
Board Member Outlier AIPresent
Managing Partner and Co-Founder Ridge VenturesPresent
Board Member SafeGraphPresent
Board Member WorkTango Inc.Present
Investor BrazePresent
Investor and Board Observer FastlyPresent
Board Member MindMeldPresent
Board Observer OfferFitPresent
Board Observer OnticPresent
Seed Investor MaintainXPresent
Board Member Chubbies ShortsPresent
Analyst Credit Suisse First BostonPresent
Managing Partner Ridge VenturesPresent
Board Observer OfferFit by BrazePresent
General Partner Sprout Group1996 - 2003
Junior Associate General Atlantic Partners1993 - 1994
Analyst Credit Suisse1990 - 1993

Alex Rosen's Education

Stanford University Graduate School of Business MBA
Massachusetts Institute of Technology Bachelor of Science (BS) Economics, Electrical Engineering