Insights

Large Startup Community Y Combinator's extensive network of over 4,500 portfolio companies presents a significant opportunity for B2B product providers, service vendors, and platform solutions aimed at startups seeking growth, funding, and operational support.

Funding Leadership With reported revenues ranging from $1 billion to $10 billion and active participation in multiple funding rounds including seed and Series A investments, YC is a key partner for financial services, investment platforms, and FinTech solutions targeting high-growth startup investments.

Innovation Drive Y Combinator actively invests in cutting-edge sectors such as AI, robotics, healthcare, and digital design, indicating strong potential for technology providers seeking partnerships or sales opportunities within emerging tech startups supported by the accelerator.

Recent Collaborations The recent partnerships with Speechify and investments in companies like GrazeMate, unusual.ai, and Giga AI demonstrate YC’s openness to adopting new technologies, making it a strategic entry point for sales teams offering AI, machine learning, or innovative SaaS solutions.

Global Reach and Impact YC operates at a global level with a diverse portfolio, including companies from Australia and rapid funding activity, providing sales opportunities across different regions for international vendors and services targeting startups with a rapid growth trajectory.

Y Combinator Tech Stack

Y Combinator uses 8 technology products and services including Gradle, MatterMark, Google Drive, and more. Explore Y Combinator's tech stack below.

  • Gradle
    Build Automation
  • MatterMark
    Business Intelligence
  • Google Drive
    Document Management Systems
  • DoorDash
    Food Ordering And Delivery
  • LinkedIn
    Online Community Software
  • Haskell
    Programming Languages
  • X-Content-Type-Options
    Web & Portal Technology
  • Facebook
    Widgets

Media & News

Y Combinator's Email Address Formats

Y Combinator uses at least 1 format(s):
Y Combinator Email FormatsExamplePercentage
First@ycombinator.comJohn@ycombinator.com
83%
FLast@ycombinator.comJDoe@ycombinator.com
8%
FL@ycombinator.comJD@ycombinator.com
6%
Last@ycombinator.comDoe@ycombinator.com
3%

Frequently Asked Questions

Where is Y Combinator's headquarters located?

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Y Combinator's main headquarters is located at United States. The company has employees across 6 continents, including North AmericaAsiaEurope.

What is Y Combinator's phone number?

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You can contact Y Combinator's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Y Combinator's official website and social media links?

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Y Combinator's official website is ycombinator.com and has social profiles on LinkedIn.

What is Y Combinator's SIC code NAICS code?

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Y Combinator's SIC code is 6726 - Unit Investment Trusts, Face-Amount Certificate Offices, and Closed-End Management Investment Offices NAICS code is 52391 - Miscellaneous Intermediation.

How many employees does Y Combinator have currently?

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As of December 2025, Y Combinator has approximately 5.1K employees across 6 continents, including North AmericaAsiaEurope. Key team members include CEO: C. S.Ceo: L. M.Chief Executive Officer: T. P.. Explore Y Combinator's employee directory with LeadIQ.

What industry does Y Combinator belong to?

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Y Combinator operates in the Venture Capital and Private Equity Principals industry.

What technology does Y Combinator use?

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Y Combinator's tech stack includes GradleMatterMarkGoogle DriveDoorDashLinkedInHaskellX-Content-Type-OptionsFacebook.

What is Y Combinator's email format?

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Y Combinator's email format typically follows the pattern of First@ycombinator.com. Find more Y Combinator email formats with LeadIQ.

When was Y Combinator founded?

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Y Combinator was founded in 2005.

Y Combinator

Venture Capital and Private Equity PrincipalsUnited States5001-10000 Employees

Y Combinator is the leading startup accelerator for entrepreneurs. Since 2005, YC has invested in over 4,500 companies, including Airbnb, Dropbox, Stripe, Reddit, Instacart, DoorDash, and Coinbase. Today, YC has built the most powerful startup community in the world alongside the products and programs to support founders for the life of their company.

Section iconCompany Overview

Headquarters
United States
Phone number
SIC Code
6726 - Unit Investment Trusts, Face-Amount Certificate Offices, and Closed-End Management Investment Offices
NAICS Code
52391 - Miscellaneous Intermediation
Founded
2005
Employees
5001-10000

Section iconFunding & Financials

  • $1B$10B

    Y Combinator's revenue is estimated to be in the range of $1B$10B

Section iconFunding & Financials

  • $1B$10B

    Y Combinator's revenue is estimated to be in the range of $1B$10B

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