Investing Profile

Dalton Caldwell

VCInvestorAngel
Managing Director at Y Combinator
daltoncaldwell.comSan Francisco, California
Photo of Dalton Caldwell, Managing Director at Y Combinator
Your Intro Paths to Dalton Caldwell

Signal uses Gmail to reveal intro paths. Email content is never read.

Sign in with Google →
Networks Dalton is a member of
Y Combinator Network
38 CONNECTIONS
Y Combinator Network
38 CONNECTIONS
Y Combinator Network
38 CONNECTIONS

Find Dalton Caldwell on

cb
Current Investing Position
Y Combinator Managing Director
Investment Range
$150K - $150K
Sweet Spot
$150K
Investments On Record
174

Dalton Caldwell is on these Sector & Stage Rankings

Dalton Caldwell's Investments On Record (154)

CompanyStageDateRound SizeTotal Raised
Avallon Labs
SeedNov 2025$5M
Pre SeedApr 2025
$5M
Co-investors: Will Prendergast
Flint
Series ANov 2025$15M
Pre SeedSep 2023$500K
$44M
Co-investors: Daniel Levine (Accel), Christiaan Vorkink (True Ventures), Marc Bhargava (General Catalyst), Jason Yeh (Patron), Jaynti Kanani (Polygon), Lan Xuezhao (Basis Set Ventures), Anamitra Banerji (Afore Capital), Sanat Rao (BlockTower Capital), Do Kwon, Kunal Shah, Tim Griffin, Ajit Tripathi
Campfire
Series BOct 2025$65M
Series AJun 2025$39M
SeedFeb 2024$4M
$110M
Co-investors: John Locke (Accel), Christine Esserman (Accel), Nick Shalek (Ribbit Capital), Angus Davis (Foundation Capital)
AiPrise
Series AOct 2025$13M
SeedSep 2022$2M
$17M
Co-investors: Petra Griffith (Wedbush Ventures), David Fairman (SixThirty), Samvit Ramadurgam, Immad Akhund
Alex AI
Series ASep 2025$17M
$21M
Co-investors: Nicolas Dessaigne (Y Combinator), Kris Fredrickson (Verified Capital), Samit Kalra (1984 Ventures)
Serafis
Pre SeedSep 2025$500K
$500K
Flex
Series ASep 2025$15M
SeedSep 2024$3M
Pre SeedSep 2023
$66M
Co-investors: Yash Patel (FTX Ventures), Beth Turner (SV Angel), Charles Hudson (Precursor Ventures), Sriram Krishnan (Andreessen Horowitz), Liz Wessel (First Round Capital), Zaid Rahman (305 Ventures), Turner Novak (Banana Capital), Jon Soberg (MS&AD Ventures), Mark Kahn (Bria Fund), Saxon Baum
Novig
Series AAug 2025$18M
SeedSep 2022$6M
Pre SeedJun 2022$500K
$25M
Co-investors: Joe Montana (Liquid 2 Ventures), Aneel Ranadive (Soma Capital), Nicolas Dessaigne (Y Combinator), Arash Ferdowsi, Paul Graham

Dalton Caldwell's Experience

Managing Director Y Combinator2020 - Present
Partner Y Combinator2014 - Present
Part-time Partner Y Combinator2013 - 2014
Founder/CEO App.net2010 - 2014
Consultant MySpace2009 - 2010
Founder/CEO imeem, inc2003 - 2009
Intern VA Software2002 - 2003