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Y Combinator is a renowned startup accelerator founded in March 2005 by Paul Graham, Jessica Livingston, Robert Tappan Morris, and Trevor Blackwell. Based in Mountain View, California, it provides seed funding, advice, and connections to early-stage startups.
Twice a year, Y Combinator selects a batch of startups to participate in a three-month program, culminating in a Demo Day where startups pitch to a carefully selected audience of investors. Over the years, Y Combinator has funded and nurtured some of the most successful tech companies, including Dropbox, Airbnb, Stripe, and Reddit, making it a pivotal institution in the tech startup ecosystem.
The Y Combinator Mafia has founded 139 companies and raised $27 billion.
PS: Are you an Y Combinator Mafia member interested in bringing your community together to invest in innovative ventures (and enjoy potential profits and other perks along the way)? Or perhaps you're part of another dynamic group that could be a fantastic source of startup investments?
😉 Then sign up to our waitlist
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Founder: Alexis Ohanian Sr.
Y Combinator Role: Partner
Capital Raised: $1.4B
Stage: Early Stage Venture, Seed
Initialized Capital is an early-stage VC firm focused on helping software engineers and designers with their first seed checks.
Founder: Alexis Ohanian Sr.
Y Combinator Role: Partner
Capital Raised: $1.3B
Investors: Sequoia Capital
Stage: Series F
Reddit is an online platform that enables users to submit links, create content, and have discussions about the topics of their interest.
Founder: Kunal Shah
Y Combinator Role: Part-time Partner
Capital Raised: $801.5M
Investors: Ribbit Capital
Stage: Series F
CRED is a fintech startup that offers rewards for customers who use its platform to pay their credit card bills.
Founder: Alexis Ohanian Sr.
Y Combinator Role: Partner
Capital Raised: $750M
Stage: Venture Capital
Seven Seven Six is a venture capital firm that primarily seeks to invest in seed rounds.
Founder: Qasar Younis
Y Combinator Role: Chief Operating Officer & Group Partner
Capital Raised: $601.5M
Investors: Lux Capital
Stage: Series E
Applied Intuition provides software infrastructure to safely develop, test, and deploy autonomous vehicles at scale.
Founder: Kevin Patrick Mahaffey
Y Combinator Role: Expert
Capital Raised: $432.3M
Investors: Index Ventures
Stage: Debt Financing
Lookout, Inc. is the endpoint to cloud security company purpose-built for the intersection of enterprise and personal data.
Founder: Sam Yam
Y Combinator Role: YCE
Capital Raised: $413.3M
Investors: Initialized Capital
Stage: Secondary Market
Patreon is an online platform connecting musicians and other artists with their fan base.
Founder: Koby Soto
Y Combinator Role: Applications Reviewer Consultant
Capital Raised: $410.6M
Investors: Y Combinator
Stage: Series F
Guesty’s advanced technology optimizes, automates, and streamlines every aspect of managing a hospitality business, all from one platform.
Founder: Immad Akhund
Y Combinator Role: Part-time Partner
Capital Raised: $152.2M
Investors: CRV
Stage: Secondary Market
Mercury offers FDIC-insured accounts, virtual & physical debit cards, currency exchange, domestic, and international wires.
Founder: Ryan Junee
Y Combinator Role: Part-Time Partner
Capital Raised: $132.9M
Investors: Lightspeed Venture Partners
Stage: Series D
Parsable offers a connected worker platform for industrial workers with modern digital tools to improve productivity, quality, and safety.
Founder: Finbarr Taylor
Y Combinator Role: Software Engineer
Capital Raised: $114.6M
Investors: Accel
Stage: Series C
Lookout, Inc. is the endpoint to cloud security company purpose-built for the intersection of enterprise and personal data.
Founder: Elizabeth Iorns
Y Combinator Role: Part-time partner
Capital Raised: $77.5M
Investors: Norwest Venture Partners
Stage: Venture - Series Unknown
Science Exchange, the R&D Services Management company, empowers research organizations to accelerate science and drive innovation success.
Founder: Jaleh Rezaei
Y Combinator Role: Advisor
Capital Raised: $71.6M
Investors: Sequoia Capital
Stage: Series B
Mutiny helps B2B companies generate pipeline and revenue from their target accounts through AI-powered personalized web experiences.
Founder: Diego Rey
Y Combinator Role: Expert/Part time Partner
Capital Raised: $64M
Investors: Mayfield Fund
Stage: Series A
Endpoint Health is a precision immunology company.
Founder: Denis Mars
Y Combinator Role: Director of Admissions
Capital Raised: $58.8M
Investors: Kleiner Perkins
Stage: Series B
Access More, Share Less. Proxy designs and builds privacy-first, human-led, identity technologies. With Proxy ID, your world is now open.
Founder: Anurup Ganguli
Y Combinator Role: Founder
Capital Raised: $40M
Investors: OMX Ventures
Stage: Series A
VedaBio innovative platform for near-instant molecular detection.
Founder: Justin Kan
Y Combinator Role: Partner
Capital Raised: $35M
Investors: Polygon Ventures
Stage: Venture - Series Unknown
Fractal is an in-game asset and virtual world marketplace where users may find, purchase, and sell gaming NFTs.
Founder: Bill Clerico
Y Combinator Role: Part-time Partner
Capital Raised: $35M
Stage: Venture Capital
Convective Capital is an investment firm.
Founder: Justin Kan
Y Combinator Role: Partner
Capital Raised: $14M
Investors: Felicis
Stage: Seed
Rye builds developer tools and APIs to build eCommerce experiences.
Founder: Danny King
Y Combinator Role: Startup School Advisor
Capital Raised: $10.8M
Investors: FJ Labs
Stage: Series B
Accredible provides a digital badge and certificate platform.
Founder: Louis Beryl
Y Combinator Role: Part-time Partner
Capital Raised: $9M
Investors: Menlo Ventures
Stage: Seed
Rocketplace is a cryptocurrency trading platform that charges 0% commission to buy and sell crypto.
Founder: Aaron Iba
Y Combinator Role: Partner
Capital Raised: $7M
Investors: —
Stage: Venture - Series Unknown
PayGarden enables customers to pay anonymously using major brand gift cards.
Founder: Kyle Corbitt
Y Combinator Role: Director
Capital Raised: $6.7M
Investors: Y Combinator
Stage: Seed
OpenPipe is an AI platform that enables software developers to build datasets and fine-tune prompts with a more affordable model.
Founder: Rick Morrison
Y Combinator Role: Part-time Partner
Capital Raised: $5.5M
Investors: Initialized Capital
Stage: Seed
Collaborative project management software for teams delivering services to clients, customers, partners, or separate internal teams.
Founder: Woody Sears
Y Combinator Role: Startup School
Capital Raised: $5.4M
Investors: Allied Venture Partners
Stage: Seed
Autio is an app that entertains listeners with bite-sized audio stories about history, landmarks, culture, and natural wonders for travel.
Founder: Kunal Shah
Y Combinator Role: Part-time Partner
Capital Raised: $5.1M
Investors: Blockchain Founders Fund
Stage: Seed
Bridging Liquidity Across TradFi and Onchain Fi - One RWA at a Time.
Founder: Sharon (Howell) Pope
Y Combinator Role: Head of Marketing Programs
Capital Raised: $3M
Investors: Apollo Projects
Stage: Seed
Shelpful is the company that combines artificial intelligence with human empathy and accountability.
Founder: Zarina Bahadur
Y Combinator Role: Startup School
Capital Raised: $2.2M
Investors: XRC Ventures
Stage: Pre-Seed
123 Baby Box is an online platform offering mothers brain developmental products for children by personalized subscription box for babies.
Founder: Michael Bank
Y Combinator Role: Startup School
Capital Raised: $2.1M
Investors: Foundation Capital
Stage: Seed
Blip is a bill payment platform designed for financial tech companies.
Founder: Arif Bhanji
Y Combinator Role: Alumni - Core Program
Capital Raised: $1.9M
Investors: Y Combinator
Stage: Seed
Fiix sends licensed, expert mechanics to your home or office to repair your car within the same day.
Founder: Cadran Cowansage
Y Combinator Role: Tech Lead
Capital Raised: $1.3M
Investors: Y Combinator
Stage: Seed
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