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Y Combinator

North America, California, United States, Mountain View

Description

Y Combinator, headquartered in Mountain View, California, stands as one of the world's most influential and prestigious startup accelerators. Founded in 2005, it pioneered the seed-stage accelerator model, providing early-stage companies with capital, mentorship, and a robust network designed to accelerate their growth. YC's rigorous program, conducted in two batches annually (Winter and Summer), culminates in a Demo Day where founders present their progress to a curated audience of investors.

The accelerator's standard investment terms are a significant draw for aspiring founders. Y Combinator typically invests $500,000 into each company accepted into its program. This investment is structured as $125,000 for 7% equity on a post-money SAFE (Simple Agreement for Future Equity), alongside an additional $375,000 on an uncapped Most Favored Nation (MFN) SAFE. This standardized approach simplifies the initial funding process, allowing founders to focus on product development and market fit rather than protracted fundraising.

Y Combinator's impact on the global startup ecosystem is profound. As of early 2024, it has funded over 4,000 companies across a diverse range of sectors, including software, hardware, biotech, and consumer goods. The combined valuation of YC alumni companies exceeds $600 billion, featuring household names such as Airbnb, Dropbox, Stripe, Coinbase, Reddit, and DoorDash. Its extensive alumni network and ongoing support resources provide a competitive advantage for its portfolio companies, solidifying its position as a critical launchpad for high-growth ventures.

Investor Profile

Y Combinator has backed more than 5,163 startups, with 740 new investments in the last 12 months alone. The firm has led 1,876 rounds, about 36% of its total and boasts 572 exits across its portfolio.

Investment Focus Highlights

  • Concentrates on Seed, Pre Seed, Series A rounds (top funding stages).
  • Majority of deals are located in United States, India, Canada.
  • Strong thematic focus on Software, Artificial Intelligence (AI), Information Technology.
  • Led 466 rounds in the past year.
  • Typical check size: $500K.

Stage Focus

  • Seed (45%)
  • Pre Seed (36%)
  • Series A (8%)
  • Series Unknown (4%)
  • Series B (3%)
  • Series C (1%)
  • Angel (1%)

Country Focus

  • United States (75%)
  • India (4%)
  • Canada (3%)
  • United Kingdom (3%)
  • Mexico (1%)
  • Singapore (1%)
  • France (1%)
  • Germany (1%)
  • Nigeria (1%)
  • Indonesia (1%)

Industry Focus

  • Software
  • Artificial Intelligence (Ai)
  • Information Technology
  • Fintech
  • Saas
  • Financial Services
  • Health Care
  • E-commerce
  • Internet
  • B2b
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FAQ

Frequently Asked Questions

Learn who this investor regularly partners with—both firms and angels—and explore their latest activity.

Who does Y Combinator frequently co-invest with?

Soma Capital
North America, California, United States, San Francisco
Co-Investments: 278
FundersClub
North America, California, United States, San Francisco
Co-Investments: 249
Liquid 2 Ventures
North America, California, United States, San Francisco
Co-Investments: 271
SV Angel
North America, California, United States, San Francisco
Co-Investments: 250
Pioneer Fund
North America, California, United States, San Francisco
Co-Investments: 367
Andreessen Horowitz
North America, California, United States, Menlo Park
Co-Investments: 102
Initialized Capital
North America, California, United States, San Francisco
Co-Investments: 116
Rebel Fund
North America, California, United States, Calabasas
Co-Investments: 128
Goodwater Capital
North America, California, United States, Burlingame
Co-Investments: 236
Khosla Ventures
North America, California, United States, Menlo Park
Co-Investments: 109

Which angels does Y Combinator often collaborate with?

WG
North America, California, United States, San Francisco
Shared Deals: 44
JM
North America, United States
Shared Deals: 37
EL
North America, Florida, United States, Miami Beach
Shared Deals: 56
LB
North America, California, United States, San Francisco
Shared Deals: 42
PB
North America, California, United States, Mountain View
Shared Deals: 98
AF
North America, California, United States, San Francisco
Shared Deals: 35
AO
North America, California, United States, San Francisco
Shared Deals: 59
BF
North America, California, United States, San Francisco
Shared Deals: 34
KT
North America, California, United States, San Francisco
Shared Deals: 29
IA
North America, California, United States, San Francisco
Shared Deals: 31

What are some of recent deals done by Y Combinator?

Poetiq

Mountain View, Missouri, United States

Poetiq develops an AI meta-system that improves large language models for complex reasoning and problem solving.

Artificial Intelligence (AI)Business IntelligenceData IntegrationEnterprise SoftwareKnowledge ManagementMachine LearningNatural Language ProcessingSoftware
SeedJan 30, 2026
Amount Raised: $45,800,000
Uplift AI

Lahore, Punjab, Pakistan

Uplift AI creates voice AI models for regional languages to enable natural speech interactions and improve digital accessibility.

Artificial Intelligence (AI)Natural Language ProcessingSoftware
SeedJan 29, 2026
Amount Raised: $3,500,000
Modelence

San Francisco, California, United States

Modelence is a Software Development firm offering typeScript cloud services AI apps production.

Developer PlatformDeveloper ToolsInformation TechnologySoftwareWeb Apps
SeedJan 28, 2026
Amount Raised: $3,000,000
Emobi

San Francisco, California, United States

Emobi is an electric vehicle company that designs, manufactures, and markets zero-emission urban mobility solutions.

Artificial Intelligence (AI)Business IntelligenceCharging InfrastructureClean EnergyElectric Vehicle
SeedJan 28, 2026
Amount Raised: $3,400,000
Risotto

San Francisco, California, United States

Risotto is an AI ChatOps for IT support, boosting efficiency and security with instant resolution and 24/7 automation, all via chat.

Artificial Intelligence (AI)Information Technology
SeedJan 27, 2026
Amount Raised: $10,000,000
Midship

San Francisco, California, United States

Midship is an AI-powered application that automates the extraction of data from various documents

Artificial Intelligence (AI)Data ManagementInformation Technology
SeedJan 27, 2026
Amount Raised: $4,150,000
Brickanta

Stockholm, Stockholms Lan, Sweden

Brickanta uses AI to automate construction documents and project workflows, reduce errors, streamline tasks, & deliver actionable insights.

Artificial Intelligence (AI)ConstructionProject ManagementSaaSSoftware
SeedJan 27, 2026
Amount Raised: $8,000,000
Theorem

San Francisco, California, United States

Theorem is an AI based Software Development firm offering productivity and verification tools for development.

Artificial Intelligence (AI)Information TechnologyProductivity ToolsSoftware
SeedJan 27, 2026
Amount Raised: $6,000,000
Concourse

New York, New York, United States

Concourse is an AI agent platform that helps corporate finance teams by automating financial analysis, reporting, and data workflows.

Artificial Intelligence (AI)B2BGenerative AISoftware
Series AJan 27, 2026
Amount Raised: $12,000,000
Mine

Cambridge, Massachusetts, United States

Mine is building the financial ally for young adults, starting with a debit card that helps college students build credit.

Credit CardsDebit CardsFinancial Services
Series AJan 26, 2026
Amount Raised: $14,000,000

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