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YC 2025 Founder Directory

Everything we have on Y Combinator's 2025 cohort: 428 companies across 4 batches (F25, S25, W25, X25), 708 founders total, 607 with verified contact data.

Last updated: June 2026

607 verified contacts
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All 4 2025 batches · Use code JUNE2026 for 33% off

2025 batches

YC ran 4 batches in 2025. Click any batch for the full company list and contact dataset.

F25

Fall 2025

303 founders · 270 verified

Browse F25 companies →Get the F25 dataset · $21 →
S25

Summer 2025

85 founders · 67 verified

Browse S25 companies →Get the S25 dataset · $21 →
W25

Winter 2025

174 founders · 139 verified

Browse W25 companies →Get the W25 dataset · $21 →
X25

Spring 2025

146 founders · 131 verified

Browse X25 companies →Get the X25 dataset · $21 →

All 2025 YC companies

428 companies, alphabetical. Each one's full founder roster is in the 2025 bundle.

851
X25
a0.dev
W25
Absurd
F25
Adam
W25
Admyral
W25
Aegis
X25
AfterQuery
W25
Agentin AI
W25
AgentMail
S25
AirCaps
F25
Airweave
X25
Aleph Lab
F25
Alice.tech
W25
Alkali Engineering
X25
Allus AI
F25
Almond
X25
Alter AI
S25
Altur
S25
Amera
F25
Amika
F25
AnswerThis
F25
Antigen
F25
Anto Biosciences
F25
Anvil
X25
Approval AI
X25
April
S25
Arcten
F25
Artifact
W25
Artificial Societies
W25
Aside
F25
Aspect
F25
Asteroid
W25
AthenaHQ
W25
AtlasGrid
F25
Atlog
X25
Attune
X25
Atum Works
X25
Augento
W25
Automax.ai
F25
Autonomous Technologies Group
F25
Autosana
S25
Avallon AI
X25
Axiom
W25
b-12
S25
Beluga Labs
X25
Better Auth
X25
Bild AI
W25
BitBoard
X25
Blaxel
X25
BlindPay
W25
Bloom
X25
Blueshoe
X25
Bluma
F25
Bolna AI
F25
BOND
X25
Boom AI
F25
BootLoop
S25
Bravi
F25
Brickanta
F25
Brickwise
F25
Bron
F25
Cactus
S25
Cactus
X25
Caddy
F25
Calltree AI
W25
Capacitive
X25
Cardamon
W25
careCycle
W25
CareSwift
S25
Caseflood.ai
W25
Casey
F25
Caucus
X25
Cedar
W25
Cenote
W25
Certus AI
S25
Channel3
S25
Chonkie
X25
chrt
W25
chrt
X25
Clad Labs
F25
clado
X25
Clarm
X25
Cleon
X25
Clicks
F25
Clidey
X25
Coasts
F25
Codyco
F25
Combinely
X25
ComplyDo
F25
Compyle
F25
Confident AI
W25
CONNTOUR
W25
Contrario
W25
Convexia
S25
CopyCat
W25
Cornell University
W25
Cortex AI
F25
Cotool
X25
Cranston AI
F25
Crimson
X25
Crunched
F25
cubic
X25
Cyberdesk
S25
Dalus
W25
dari.dev
F25
Dartboard Energy
W25
Dash
S25
Deeptrace
F25
Delineate
W25
Delty
X25
Demeter
W25
Den
X25
Denki
F25
Digipals
F25
DiligenceSquared
F25
Docket
X25
Dollyglot
W25
Dome
F25
dScribe AI
S25
Edexia
W25
Efference
F25
Egress Health
W25
Eloquent AI
X25
Embedder
S25
emojis.com
W25
Enhanced Radar
W25
Ergo
W25
Everest
F25
Excellence AI
W25
Exin Therapeutics
W25
Exonic
F25
Expected Parrot
F25
Fastshot
F25
Fernstone
F25
Fifth Door
F25
finbar
W25
Finto
S25
Flick
F25
Flott HQ
X25
Flywheel AI
S25
Forge Automation
W25
Forge Robotics
F25
Freeport Markets
F25
Frekil
X25
FuseAI
W25
G LNK
W25
Gale
W25
Galen AI
X25
General Agency
W25
General Trajectory
W25
Godela
X25
Goldbridge
F25
Golf
X25
Golpo
S25
GradeWiz
W25
Gulp
W25
HABIT
X25
Harbera
W25
Hedge
F25
HelixDB
X25
Helonic
F25
Hemut
X25
Hera
S25
Herdora
S25
hillclimb
F25
Human Behavior
X25
Humoniq
S25
Hypercubic
F25
Hyperspell
F25
Icarus
F25
Idler
S25
iHealth Pharmacy
W25
Imagine AI
F25
Infinite
W25
Inspector
F25
Instinct
W25
Interfere
S25
Inversion Semiconductor
W25
item
F25
Janus
X25
Jarmin
F25
Jazzberry
X25
Juxta
S25
Kaelio
X25
Kaigo Health
F25
Kalpa Labs
F25
Kanava AI
X25
Karsa
W25
Karumi
F25
Kashikoi
X25
Kestral
X25
Kestrel AI
F25
Kestroll
S25
Koyal
F25
Labric
X25
Lakonia
F25
Lanesurf
S25
Lapis
F25
Leadbay
F25
Leaping AI
W25
Leeroo
X25
Lemma
F25
Lexi
F25
Lightberry
F25
LineWise
X25
Locus
F25
Logical
F25
LogosGuard
F25
Lopus AI
W25
Lua Global Inc
F25
Lucid
W25
Lucidic AI
W25
Lucis
X25
Lumari
X25
Luminal
S25
LunaBill
F25
Lunavo
F25
Lyra
X25
MadeThis
F25
Magnetic
S25
Magnitude
S25
Maive
W25
Mantle
F25
Maritime Fusion
W25
MarkIt
F25
Mastra
W25
Mayflower
F25
Mbodi AI
X25
mcp-use
S25
Mecha Health
W25
Mercura
W25
Mesh
W25
Mesmer
X25
Metorial
F25
MindFort AI
X25
Minerva Intelligence
X25
Miniswap
F25
Minro
F25
Misprint
W25
Mixy
F25
Miyagi Labs
W25
Mod AI
F25
Mohi
S25
Morphik
X25
MorphoAI
X25
Moss
F25
Motives
S25
MOVEdot
F25
Multifactor
F25
Mundo AI
W25
Narrative
F25
Nerviom
F25
Nessie
F25
Nexus
F25
Nimbic AI
X25
Nitrode
W25
Nomi
X25
Nori
F25
Norra
F25
Novaflow
S25
Novoflow
X25
NOX METALS
S25
Nozomio
S25
Nucleo
F25
Null Labs
F25
Odapt
X25
Odin Classroom
S25
Oki AI
W25
Olive
W25
OpenBuilder
F25
Opennote
S25
Openroll
F25
Operand
W25
Operative
X25
Opusense
X25
Orange Slice
S25
Outlit
W25
Outrove
S25
Overstand Labs
W25
Pally
S25
Pangolin
S25
Parametric
F25
ParaQuery
X25
Paratus Health
W25
Parrot
F25
Parse
F25
Parsewise
X25
Partcl
X25
Patent Watch
F25
Pave Robotics
W25
Permitify
W25
Perseus Defense
S25
Perspectives Health
S25
Phases
S25
Philon
F25
Photonium
X25
Pickle
W25
Piggy Robotics
F25
Pinch
W25
Pioneer Fund
W25
Pixley AI
F25
Plexe AI
X25
Pond
S25
Primer
F25
Prism AI
X25
Probo
X25
Proception
W25
Project Chiron
X25
Promptless
W25
Prox
F25
QFEX
X25
QualGent
X25
Quantstruct
W25
Rally
W25
RealRoots
S25
Rebolt
W25
Red Barn Robotics
W25
Redapto
F25
ReJot
W25
Relixir
X25
Remedy
F25
Retrofit
W25
Revise Robotics
W25
Riff
S25
Rivet
F25
Roark
W25
Rovi Health
F25
Rovr
F25
RunRL
X25
s2.dev
F25
SalesPatriot
W25
Sava
F25
SAVA Robotics
X25
Sciloop
F25
Scoop
F25
Scott AI
F25
Scout
W25
Selfin
F25
SellRaze
F25
Semble AI
F25
Semiotic
F25
Sennu AI
W25
SF Tensor
F25
sieve
X25
SigmanticAI
S25
Sim Studio
X25
SixtyFour
X25
Skope
S25
Solidroad
W25
Sophris
W25
Sorce
F25
Soren
F25
Sourcebot
F25
Specific
F25
Splash
W25
Spott
W25
stagewise
S25
Stanford University
W25
StarSling
X25
Steinmetz
W25
Stockline
S25
stratify
X25
Structured AI
F25
SubImage
W25
Subtrace
W25
Summon
S25
Sunflower
F25
superglue
W25
Sylvian
F25
Symbia
S25
TectoAI
S25
Tejas AI
W25
Telemetron
F25
TensorPool
W25
Tensr
F25
Tergle
W25
Terrain
F25
text.ai
X25
The Context Company
F25
The Hog
F25
Thesis
F25
Third Chair
X25
throxy
X25
Tinfoil
X25
Tire Swing
W25
Tire Swing
X25
Tornyol
F25
Trace
W25
TrainLoop
W25
Trata
W25
Trelium
F25
TripleZip
W25
Tropir
X25
Truffle AI
W25
Truth Systems
S25
UCL
X25
Uncommon Therapeutics
W25
University of Chicago
W25
Unsiloed AI
F25
Uplane
F25
Uplift AI
S25
ValueMate
X25
Vantel
W25
Velvet
F25
Verbiflow
W25
Veria Labs
F25
Vetnio
W25
VibeFlow
S25
VibeGrade
X25
VoiceOS
X25
Vora AI
W25
Vovana
W25
Waffle
X25
Wardstone
F25
Wavedash
X25
Waypoint Transit
W25
Weave
W25
Wildcard
W25
Willow
X25
WorkDone
X25
Woz
W25
YouLearn
X25
Zalos
F25
Zarna
F25
Zavo
F25
Zenobia Pay
X25
Zephyr Fusion
F25
ZeroEntropy
W25

Get all 428 2025 companies' founder contacts

607 verified founder contacts across 4 batches — names, emails, LinkedIn URLs, titles, and current company status.

Use code JUNE2026 for 33% off