Investing Profile

William Reed

VCInvestor
General Partner at Spark Capital
sparkcapital.com/team-profile...San Francisco Bay Area
Photo of William Reed, General Partner at Spark Capital

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Spark Capital General Partner
$5.0M - $15.0M
$10.0M
31
$2.1B
CompanyStageDateRound SizeTotal Raised
Cardless
Series CSep 2025$60M
$110M
Co-investors: Jack Groetzinger (Founder Collective), Andy Dunn (Red Swan Ventures), Andrew Vigneault (Flexcap), Zach Weinberg (Curie.Bio), Brian Bell (Team Ignite Ventures), Daniel Kennedy (Operator Stack), Nicky Goulimis, Khaled Helioui
Baseten
Series DSep 2025$150M
Series CFeb 2025$75M
Series BMar 2024$40M
$290M
Co-investors: Shravan Narayen (IVP), Mustafa Suleyman (Greylock), Somesh Dash (IVP), Sarah Guo (Conviction Partners), Jay Simons (Bond), Adam Bain (01 Advisors), Dick Costolo (01 Advisors), Lachy Groom (LGF), Jean-Denis Greze (Plaid), Cristina Cordova, Charles Zedlewski, Scott Belsky, Greg Brockman, Dylan Field, DJ Patil
Medallion
Series CAug 2025$43M
Series CJun 2022$35M
Series BNov 2021$30M
Series AJun 2021$20M
$190M
Co-investors: Natalie Sandman (Spark Capital), Sangeen Zeb (GV (Google Ventures)), Andrew Reed (Sequoia Capital), Joe Montana (Liquid 2 Ventures), Darian Shirazi (Gradient Ventures), Nat Friedman (C2 Investment), Daniel Gross (C2 Investment), Nathan Doctor (Infinite Capital), Jarrod Dicker (TCG (The Chernin Group)), Ryan Bubinski (Pioneer Fund), Kevin Alvarez-Fung (Predictive VC), Vishal Lugani (aCrew Capital), Zachary Sims, Peter Reinhardt, Will Gaybrick
Underdog Fantasy
Series CMar 2025$70M
$80M
Co-investors: Kevin Durant (Thirty Five Ventures), Nitesh Banta (Stellar Capital), Nasir Jones (QueensBridge Venture Partners), Kevin Carter (Night Capital), Bryan Rosenblatt (Craft Ventures), Mark Cuban, Matthew Dellavedova, Breon Corcoran, Mitch Garber, Mark Pincus, Odell Beckham Jr., Steve Aoki
Abridge
Series DFeb 2025$250M
Series CFeb 2024$150M
Series BOct 2023$30M
$760M
Co-investors: Andy Weissman (Union Square Ventures), Somesh Dash (IVP), Sebastian Duesterhoeft (Lightspeed Venture Partners), David George (Andreessen Horowitz), Faraz Rahman (CVS Health), Vijay Patel (CVS Health), Jamie Goldstein (Pillar VC), Esther Dyson, Yoshua Bengio, Elad Gil
Headway
Series DJul 2024$100M
Series COct 2023$130M
$300M
Co-investors: Scott Kupor (Andreessen Horowitz), Scott Hartley (Everywhere Ventures (The Fund)), Jenny Fielding (Everywhere Ventures (The Fund)), Bryan Rosenblatt (Craft Ventures)
Scale AI
Series FMay 2024$1B
Series CAug 2019$100M
$1.6B
Co-investors: Daniel Levine (Accel), Justin Kan (Goat Capital), Lucas Swisher (Coatue), Andy Chen (Coatue), Peter Thiel (Founders Fund), Mike Volpi (Hanabi Capital), Bryan Rosenblatt (Craft Ventures), Ilya Sukhar (Matrix), Nat Friedman (C2 Investment), Kris Fredrickson (Verified Capital), John Curtius (Cedar Capital Group), Neil Mehta (Greenoaks Capital), Bradley Horowitz, Mike Krieger, Scott Belsky, Guillermo Rauch, Drew Houston, Greg Brockman, Charlie Cheever, Adam D'Angelo
Instabase
Series CJun 2023$45M
Series BOct 2019$110M
$280M
Co-investors: Martin Casado (Andreessen Horowitz), Jerry Chen (Greylock), Sarah Cannon (Index Ventures), Arjun Sethi (Tribe Capital), Peter Boyce II (Stellation Capital), Nitesh Banta (Stellar Capital), Peter Sonsini