City

Startups in San Francisco

Companies headquartered in San Francisco, and the founders who built them.

3,445 companies · page 4 of 58

OdeoAcquired

Media & Entertainment · USA · 2005

Evan Williams, Noah Glass

Prosper MarketplacePrivate

Fintech · USA · 2005

Chris Larsen, John Witchel

RedditPublic YC S05

Media & Entertainment · USA · 2005 · YC S05

Steve Huffman, Alexis Ohanian, Aaron Swartz, Jaime Rogozinski

SlideAcquired

Media & Entertainment · USA · 2005

TruliaAcquired

Real Estate & Construction · USA · 2005

Pete Flint, Sami Inkinen

DiggAcquired

Social · USA · 2004

Kevin Rose, Jay Adelson

UnityPublic

Gaming · USA · 2004

David Helgason, Nicholas Francis, Joachim Ante

WikiaPrivate

Software & IT · USA · 2004

Jimmy Wales, Angela Beesley, Angela Beesley Starling

YelpPublic

Marketplace · USA · 2004

Jeremy Stoppelman, Russel Simmons

SplunkAcquired

Developer Tools · USA · 2003

Michael Baum, Rob Das, Erik Swan

Clarium CapitalPrivate

Fintech · USA · 2002

Red SwooshAcquired

Software & IT · USA · 2001

Travis Kalanick, Michael Todd

Six ApartAcquired

Software & IT · USA · 2001

Ben Trott, Mena Trott

StumbleUponDefunct

USA · 2001

WikipediaPrivate

Software & IT · USA · 2001

Jimmy Wales, Larry Sanger

Xoom CorporationAcquired

Fintech · USA · 2001

Kevin Hartz, Alan Braverman

BloggerAcquired

Media & Entertainment · USA · 1999

JawboneDefunct

Hardware & Electronics · USA · 1999

Alexander Asseily, Hosain Rahman

SalesforcePublic

Enterprise Software · USA · 1999

Marc Benioff, Parker Harris, Dave Moellenhoff, Frank Dominguez, Stephan Schambach, Steve Loughlin, Adam Evans, Max Rudman, Michael Lazerow, Kass Lazerow

OpenTableAcquired

Marketplace · USA · 1998

Chuck Templeton

Pets.comDefunct

Retail & E-commerce · USA · 1998

CraigslistPrivate

Marketplace · USA · 1995

CactusPrivate YC S25

Retail & E-commerce · Luxembourg · 1967 · YC S25

Joseph Leesch, Ajith Govind, Avinash Joshi

RotePrivate YC W27

Enterprise Software · USA · 2027 · YC W27

Gabriel Castillo, Aditya Mittal

/dev/fastPrivate YC W26

Enterprise Software · USA · 2026 · YC W26

Sid Menon, Ketan Agrawal, Milan Bhandari, Alex Iansiti

10x SciencePrivate YC W26

Enterprise Software · USA · 2026 · YC W26

David Roberts, Andrew Reiter, Vishnu Tejus

21stPrivate YC W26

Enterprise Software · USA · 2026 · YC W26

Serafim Korablev, Sergey Bunas

6thSensePrivate YC S26

Industrials & Manufacturing · USA · 2026 · YC S26

James Baek, Ronak Agarwal, Alex Hyungwoo Noh, Matt Wulff

83 SciencesPrivate YC S26

Industrials & Manufacturing · USA · 2026 · YC S26

Ian Naccarella, Eric Riesel, Yankang Yang

AICEPrivate YC S26

Industrials & Manufacturing · USA · 2026 · YC S26

Gregoire Chomette, Rémi Bouteiller

ANORIAPrivate YC S26

Consumer · USA · 2026 · YC S26

Michael Belhassen

ARC Prize FoundationPrivate YC W26

Industrials & Manufacturing · USA · 2026 · YC W26

AdialantePrivate YC S26

Healthcare · USA · 2026 · YC S26

Efrain Torres, Parker Jenkins

AemonPrivate YC W26

Enterprise Software · USA · 2026 · YC W26

Richard Zhou, Ray Xu

Agent FMPrivate YC S26

Enterprise Software · USA · 2026 · YC S26

Aniket Deshpande, Mugdhaa Patankar

AgentPhonePrivate YC S26

Enterprise Software · USA · 2026 · YC S26

Manav Modi, Meet Modi

AgentcardPrivate YC S26

Fintech · USA · 2026 · YC S26

Karen Serfaty, Felipe Abello

Agentic FabriqPrivate YC W26

Enterprise Software · USA · 2026 · YC W26

Paulina Xu, Matthew Xu

Agnost AIPrivate YC S26

Enterprise Software · USA · 2026 · YC S26

Shubham Palriwala, Parth Ajmera

AkkariPrivate YC S26

Enterprise Software · USA · 2026 · YC S26

Jeffrey Byun, Henry A. Lee, Michael Moore

Akon LabsPrivate YC S26

Enterprise Software · USA · 2026 · YC S26

Aktoria RoboticsPrivate YC S26

Industrials & Manufacturing · USA · 2026 · YC S26

Shreenabh Agrawal, Jaskaran Singh Walia

AlchemizePrivate YC S26

Enterprise Software · USA · 2026 · YC S26

Robert Hou, Samuel Fu

Alkera AIPrivate YC S26

Enterprise Software · USA · 2026 · YC S26

Rick Gao, Tony Li, Andrew Tran

AllowancePrivate YC S26

Fintech · USA · 2026 · YC S26

AlmanacPrivate YC S26

Enterprise Software · USA · 2026 · YC S26

Kushagra Chitkara, Rohan Sharma, Divit Sheth, Adam Nathan

AmborasPrivate YC S26

Enterprise Software · USA · 2026 · YC S26

Imad Mokadem, Amin Mokadem

Amorphic LabsPrivate YC S26

Enterprise Software · USA · 2026 · YC S26

Dylan Kelly, Frank Li

AmuletPrivate YC S26

Enterprise Software · USA · 2026 · YC S26

Nithik Bala, Varun Puru

AnchorheadPrivate YC W26

Industrials & Manufacturing · USA · 2026 · YC W26

AndcoPrivate YC S26

Enterprise Software · USA · 2026 · YC S26

Ryan Xue, David Lee, Michael Lemm

Applied Electrodynamics, Inc.Private YC S26

Industrials & Manufacturing · USA · 2026 · YC S26

Bilgehan Avser, Brian Huppi, Paul Leutheuser, George McLean

AquaShieldPrivate YC S26

Real Estate & Construction · USA · 2026 · YC S26

Paul Beckers, Marguerite Benoist

ArchalPrivate YC S26

Enterprise Software · USA · 2026 · YC S26

ArcherPrivate YC S26

Fintech · USA · 2026 · YC S26

Benjamin Nguyen, Vivek Yanamadula

ArdenPrivate YC S26

Enterprise Software · USA · 2026 · YC S26

Aryaman Khanna, David Lomelin

ArdentPrivate YC S26

Enterprise Software · USA · 2026 · YC S26

Arga LabsPrivate YC S26

Enterprise Software · USA · 2026 · YC S26

Phillip Li, Akira Tong

Arlo IndustriesPrivate YC S26

Industrials & Manufacturing · USA · 2026 · YC S26

Deo Arlo (Iron Dome Guy)

ArmaturePrivate YC S26

Enterprise Software · USA · 2026 · YC S26

Theodore Otzenberger, Louis Scremin