SBatch S21
YC S21 Companies
478 Y Combinator S21 startups with verified founder contacts, company status, and team data.
478
Companies
Summer
Season
2021
Year
YC Company Directory
50 companies
Company | Batch | Description | Status | Location | Team | Site | Founders | Reveal |
|---|---|---|---|---|---|---|---|---|
Beeper | S21 | One chat app to rule them all | Acquired | Palo Alto, CA, USA | 16 | Eric Migicovsky, Brad Murray | Reveal | |
Birdie | S21 | Connect LinkedIn to your CRM to automate and track LinkedIn outreach. | Active | San Francisco, CA, USA | 2 | Daniel Hung | Reveal | |
Bite Ninja | S21 | Remote labor for restaurants | Active | Memphis, TN, USA | 20 | William Clem | Reveal | |
Bite Ninja | S21 | Remote labor for restaurants | Active | Memphis, TN, USA | 20 | William Clem, Jared Fullwiler | Reveal | |
Blixo | S21 | Accounts receivable automation to help companies get paid faster | Active | Miami, FL, USA | 2 | Danilo Stern-Sapad | Reveal | |
BoldVoice | S21 | Speech and accent coaching app for non-native English speakers | Active | New York City, NY, USA | 12 | Anada Lakra, Ilya Usorov | Reveal | |
Bolster | S21 | The platform for buying, selling and managing residential construction | Active | Calgary, AB, Canada | 25 | Mike Bignold, David Vass | Reveal | |
Breadcrumbs.io | S21 | No-code scoring engine identifying your most engaged upsell opps | Acquired | San Francisco, CA, USA | 20 | Armando Biondi, Gary Amaral, Massimo Chieruzzi | Reveal | |
Bree | S21 | Chime for Canada, starting with cash advances | Active | Vancouver, BC, Canada | 2 | Alexander Li, Adam Kang | Reveal | |
Brite | S21 | Software that helps employees pick their employee benefits. | Active | Salt Lake City, UT, USA | 15 | Landon Fielding, Jake Parkinson, Ben Hale | Reveal | |
Buoyant Aero | S21 | Bringing back blimps | Active | San Francisco, CA, USA | 2 | Benjamin Claman | Reveal | |
Bytebot | S21 | Bytebot is the open source container for AI desktop agents. | Active | San Francisco, CA, USA | 3 | Carl Atupem | Reveal | |
Bytebot | S21 | Bytebot is the open source container for AI desktop agents. | Acquired | Boston, MA, USA; Remote | 3 | Carl Atupem | Reveal | |
Byte Kitchen | S21 | Increasing restaurant profitability through our AI Operating System | Acquired | San Mateo, CA, USA | 5 | Divyang Arora, Rahul Madadi, Quinn McKenna | Reveal | |
Byte Kitchen | S21 | Increasing restaurant profitability through our AI Operating System | Acquired | San Francisco, CA, USA; San Mateo, CA, USA | 5 | Divyang Arora, Rahul Madadi, Quinn McKenna | Reveal | |
Cabal | S21 | Private workspace for founders, investors, and advisors to collaborate | Active | San Francisco, CA, USA | 8 | Fahim Ferdous | Reveal | |
Cache | S21 | Online convenience stores fulfilled by tiny, automated dark stores. | Inactive | San Francisco, CA, USA | 2 | Christopher Wu, Jimmy Young | Reveal | |
Cache | S21 | Online convenience stores fulfilled by tiny, automated dark stores. | Inactive | San Francisco, CA, USA | 2 | Christopher Wu, Jimmy Young | Reveal | |
Café | S21 | Your Workplace Engagement Hub | Active | Paris, Île-de-France, France | 10 | Tom Nguyen, Arthur Lorotte de Banes, Arthur Lorotte de Banes | Reveal | |
Caire Health | S21 | Semi-Autonomous Diagnostics for Emergent Care | Active | Florida, USA | 3 | Anmol Warman, Pranav Warman, Roshan Warman | Reveal | |
Canopi | S21 | API to measure and eliminate carbon emissions | Inactive | San Francisco, CA, USA | — | Taishi Nojima, Tomas Alvarez Belon | Reveal | |
Carbonfact | S21 | Decarbonizing the fashion industry | Active | Paris, France | 22 | Marc Laurent, Romain Champourlier, Martin Daniel | Reveal | |
Carbonfact | S21 | Decarbonizing the fashion industry | Active | Paris, Île-de-France, France | 22 | Marc Laurent, Romain Champourlier, Martin Daniel | Reveal | |
Careerist | S21 | Learning platform for job seekers with job applications automation | Active | San Francisco, CA, USA; Remote | 100 | Ivan Tsybaev, Max Glubochansky, Max Gusakov | Reveal | |
Cartpanda | S21 | Global online sales platform | Active | São Paulo, SP, Brazil; Remote | 60 | Lucas Castellani | Reveal | |
Catena Biosciences | S21 | Using protein coupling to build new therapies | Active | Berkeley, CA, USA | 7 | Marco Lobba, Matthew Francis | Reveal | |
Catena Biosciences | S21 | Using protein coupling to build new therapies | Active | San Francisco, CA, USA; Berkeley, CA, USA | 7 | Marco Lobba, Matthew Francis, Gregorio Guillen | Reveal | |
CellChorus | S21 | The dynamic single-cell analysis company | Active | Houston, TX, USA | 4 | Dan Meyer, Navin Varadarajan | Reveal | |
Cero | S21 | Automated communication between hospitals and patients in Latam | Active | Santiago, Santiago Metropolitan Region, Chile; Remote | 10 | Felipe Rodríguez, Jorge Pérez, Mauricio Quezada | Reveal | |
Charge Robotics | S21 | Robots that build solar farms | Active | San Francisco, CA, USA | 25 | Banks Hunter, Max Justicz | Reveal | |
Chari | S21 | B2B e-commerce and fintech platform for traditional proximity stores | Active | Casablanca, Casablanca-Settat, Morocco | 100 | Ismael Belkhayat, Sophia Alj | Reveal | |
Chipax | S21 | Quickbooks for SMBs in Latam | Active | Santiago, Santiago Metropolitan Region, Chile | 37 | Antonio Correa, François Gueneau de Mussy, Felipe Urzúa | Reveal | |
Chipax | S21 | Quickbooks for SMBs in Latam | Active | Santiago, Santiago Metropolitan Region, Chile; Remote | 37 | Antonio Correa, François Gueneau de Mussy, Felipe Urzúa | Reveal | |
Cloudanix | S21 | Cloud and Container Security Platform | Active | Sunnyvale, CA, USA | 8 | Sujay Maheshwari | Reveal | |
Cloudthread | S21 | Eliminate Cloud Waste. Attribute and Track Savings. Engage Engineers. | Acquired | San Francisco, CA, USA | 8 | Ilia Semenov, Daniele Packard | Reveal | |
Coast | S21 | Demo Platform for API-First Companies | Active | New York City, NY, USA | 35 | Spencer Levitt, Austin Pager, Daniel Simon | Reveal | |
Cococart | S21 | Empowering local businesses to sell online. | Active | Singapore | 18 | Derek Low | Reveal | |
Cococart | S21 | Empowering local businesses to sell online. | Active | Madrid, Community of Madrid, Spain; Singapore, Singapore; Remote | 18 | Derek Low | Reveal | |
Coinrule | S21 | Coinrule Automates Your Crypto and Stock Investments | Active | London, England, United Kingdom | 7 | Gabriele Musella, Oleg Giberstein, Zdeněk Höfler | Reveal | |
CoLoop | S21 | AI Copilot for insights & strategy | Active | London, UK | 16 | Jack Bowen, Adrien Wald | Reveal | |
Comet Health | S21 | Digital platform for pelvic floor physical therapy | Inactive | Palo Alto, CA, USA | 3 | Nina Lu, Katy Honda | Reveal | |
Commery | S21 | Marketplace to lease commercial real estate | Inactive | New York City, NY, USA; New York, NY, USA; Remote | 3 | Andrew Zhou, Lyon Aung, Eric He | Reveal | |
Concord Materials | S21 | Automating procurement and finance for construction companies | Active | New York, NY, USA | 7 | Anthony Valente | Reveal | |
Confido | S21 | AI-enabled financial automation and intelligence for CPG Brands | Active | New York, NY, USA | 28 | Kara Holinski, Justin Hunter | Reveal | |
Confido | S21 | AI-enabled financial automation and intelligence for CPG Brands | Active | New York City, NY, USA | 65 | Kara Holinski, Justin Hunter | Reveal | |
Contalink | S21 | We help Accountants automate work and serve their customers online | Active | Monterrey, Nuevo Leon, Mexico | 75 | Eduardo Williams, Carlos Salinas | Reveal | |
Contalink | S21 | We help Accountants automate work and serve their customers online | Active | Monterrey, N.L., Mexico | 75 | Eduardo Williams, Carlos Salinas | Reveal | |
ContraForce | S21 | Security Delivery Platform to orchestrate AI agents for Service… | Active | McKinney, TX, USA | 15 | Stanislav Golubchik, Ricky Melendez | Reveal | |
ContraForce | S21 | Security Delivery Platform to orchestrate AI agents for Service… | Active | McKinney, TX, USA; Remote | 15 | Stanislav Golubchik, Ricky Melendez | Reveal | |
Coulomb AI | S21 | Battery Observability Platform for Electric Vehicles | Active | Bengaluru, Karnataka, India | 10 | Khushboo Shrivastava, Santanu Mondal | Reveal |
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