Investing Profile

Alexander Rosen(3)

InvestorVCFounder
Managing Partner and Co-Founder at Managing Partner and Co-Founder
ridge.vcSan Francisco, California
Photo of Alexander Rosen, Managing Partner at Ridge Ventures (Formerly known as IDG Ventures USA)
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Networks Alexander is a member of
Stanford University Graduate School of Business Network
365 CONNECTIONS
Massachusetts Institute of Technology Network
248 CONNECTIONS
Credit Suisse Network
89 CONNECTIONS

Find Alexander Rosen on

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Current Investing Position
Ridge Ventures (Formerly known as IDG Ventures USA) Managing Partner
Investment Range
$1M - $7.0M
Sweet Spot
$4.0M
Investments On Record
64
Current Fund Size
$130M

Alexander Rosen is on these Sector & Stage Rankings

Alexander Rosen's Investments On Record (43)

CompanyStageDateRound SizeTotal Raised
ReFiBuy
SeedMay 2026$15M
$17M
Co-investors: Matt Nichols (Commerce Ventures), Bob Hower (Advanced Technology Ventures), Anthony Pompliano
GoodDay Software
Series UnknownJan 2026$7M
$7M
Co-investors: Amish Jani (Self-employed), Alex 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), Alex Rosen (Ridge Ventures (Formerly known as IDG Ventures USA))
Besty AI
SeedAug 2024$2M
$2M
Co-investors: Akriti Dokania (Ridge Ventures (Formerly known as IDG Ventures USA)), David Ambrose (Steadfast Venture Capital), Alex Rosen (Ridge Ventures (Formerly known as IDG Ventures USA)), Ravi Belani (Extensity (IPO'd, then acq by Geac))
OfferFit
Series BNov 2023$25M
$39M
Co-investors: Mike Ghaffary (Canvas Ventures), Bradley Horowitz (Google Ventures), Alex Clayton (Meritech Capital Partners), JP (Jean-Paul) Sanday (Menlo Ventures), Nadav Ben-Chanoch (Pareto Holdings), Edward Lando (Biowear), Alex Rosen (Ridge Ventures (Formerly known as IDG Ventures USA)), Michael Stoppelman (Center for Rural Health Leadership), Katelyn Donnelly (Avalanche VC), Jeremy Stoppelman (Yelp.com), Kevin Stumpf, Ron Pragides
SafeGraph
Series BMar 2021$45M
Series AApr 2017$16M
$61M
Co-investors: Chris Scoggins (SignalFire), Peter Thiel (Founders Fund), Cathy Gao (Sapphire Ventures), Chris Farmer (SignalFire), Fabrice Grinda (FJ Labs), Paul Levine (Sapphire Ventures), Jeff Epstein (Bessemer Venture Partners), Naval Ravikant (Sm4rt Predictive Systems), Alex Rosen (Ridge Ventures (Formerly known as IDG Ventures USA)), Itamar Novick (Recursive Ventures), Jonathan Abrams (8-Bit Capital), 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), Julia Popowitz (Broadway Angels), Adrian Aoun, Russell Fradin, Joe Zawadzki, Adam Foroughi, George Garrick, Adam D'Angelo, Russ Fradin, Eric Chernoff, Joel Hornstein, Saran Chari
Horizon3.ai
SeedJan 2020$4M
$280M
Co-investors: Ilya Kirnos (SignalFire), Aaron Jacobson (New Enterprise Associates (NEA)), Alex Rosen (Ridge Ventures (Formerly known as IDG Ventures USA)), Dorin Baniel (NightDragon)
Outlier
Series BJan 2020$22M
Series AJul 2018$6M
$66M
Co-investors: John Lyman (GV (Google Ventures)), Brad Greenwald (Hilltop Venture Partners), Leo Polovets (Humba Ventures), Alex Rosen (Ridge Ventures (Formerly known as IDG Ventures USA)), Marc Ladin (PVCP), Josef Feldman (Tectonic Capital)

most interested in

I'm looking to invest in founder-led Series A companies with early revenue, primarily serving enterprises. Currently focus on data services, cloud infrastructure, Consumerization of IT, SaaS applications, martech, and select e-commerce.

not interested in

I'm less excited about hardware, non-Series A stage

Alexander Rosen's Experience

Managing Director and Co-Founder Ridge Ventures (Formerly known as IDG Ventures USA)2006 - Present
Junior Associate General Atlantic PartnersPresent
Analyst Credit SuissePresent
General Partner Sprout Group1996 - 2003

Alexander Rosen's Education

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