Y

Y Combinator

Seed-stage startup accelerator and investor

Overview

Y Combinator is a startup accelerator that funds early-stage companies through seed investments and a three-month, batch-based program. Founders receive mentorship, guidance on product and business strategy, and a Demo Day to present to invited investors. The program runs four times a year, creating a strong network effect among participants who can support one another and share experiences. The accelerator’s portfolio spans software, fintech, biotech, and consumer products, with notable alumni including Stripe, Airbnb, and Coinbase. Unlike many investors, Y Combinator combines a small equity stake with access to a vast alumni and investor network, monetizing returns from successful exits such as acquisitions or IPOs. Its goal is to identify high-potential ventures, help them grow, and generate meaningful financial returns for its stakeholders through exits.

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About Y Combinator

Simplify's Rating
Why Y Combinator is rated
B+
Rated A on Competitive Edge
Rated B on Growth Potential
Rated B on Differentiation

Industries

Venture CapitalFinancial Services

Company Size

1,001-5,000

Company Stage

Pre-seed

Total Funding

$50B

Headquarters

San Francisco, CA

Founded

2005

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Simplify's take

What believers are saying

  • YC backed Volaren and Databuddy in Fall 2026, showing active dealflow into AI.
  • Garage crossed $100 million annual sales after YC participation, validating post-batch scaling.
  • Replit’s March 2026 $400 million round included YC, reinforcing relevance with elite follow-on investors.

What critics are saying

  • AI-native founders bypass YC using X, GitHub, and direct seed platforms within 12 months.
  • Fresh GP hires signal bench replacement, not moat expansion, if founder quality slips.
  • Regulatory and litigation exposure persists under 2026 arbitration terms, privacy policy, and DMCA enforcement.

What makes Y Combinator unique

  • Fall 2026 launched 106 companies by September 30, 2026, sustaining YC’s batch pipeline.
  • YC keeps adding senior talent: Diana Hu promoted June 16, 2026; three GPs joined.
  • Its alumni network still monetizes, with Groww stake sales in 2026 proving portfolio liquidity.

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Funding

Total Funding

$50B

Above

Industry Average

Funded Over

0 Rounds

Benefits

  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Life Insurance
  • Disability Insurance
  • Health Savings Account/Flexible Spending Account
  • Unlimited Paid Time Off
  • Paid Holidays
  • 401(k) Retirement Plan
  • 401(k) Company Match
  • Parental Leave
  • Fertility Treatment Support

Company News

Duke University
Nov 12th, 2026
Lumius Imaging raises $4.5M seed round

Pi-Lab spin-out Lumius Imaging, co-founded by Tri Vu and Luca Menozzi, has closed a $4.5M seed round led by FundersClub to make 3D and wearable ultrasound accessible in clinical and everyday care.

Traders Union
Nov 11th, 2026
Palomma raises $10M Series A to expand rent payments and landlord financing in Colombia

Medellín-based Palomma has raised $10 million in Series A funding led by Mexican venture firm Cometa, bringing its total funding to $14 million. The rent payments startup will use the money to add AI and financial products in Colombia. Annual recurring revenue rose thirtyfold in 18 months to about $3 million. Palomma processes about $130 million in monthly rent for more than 200,000 tenants through over 500 property managers. Its products include Palomma Advance, which gives landlords up to 12 months of future rent upfront, and Palomma Protect, which covers missed rent. Palomma Flex, which would let tenants split rent into two payments, is in development. Colombia remains the priority, though the company is weighing Mexico, Brazil, and the Spanish-speaking US market.

Zero G Talent
Nov 10th, 2026
Hyperbound raises $15M Series A led by Peak XV to scale AI sales roleplay

San Francisco-based Hyperbound has raised a $15 million Series A round led by Peak XV Partners. Y Combinator, Snowflake Ventures, Roble Ventures, and Fellows Fund also took part, bringing total funding to $18.3 million. The sales technology startup builds a platform for voice-driven sales roleplays and real-time call coaching. Simulated AI buyers, tailored to a customer's ideal client profile, let sales reps practise prospecting, pricing negotiation, and objection handling. Hyperbound added $1 million in new annual recurring revenue for two consecutive months. Its customers include LinkedIn, Autodesk, Bloomberg, Notion, and IBM. Since the round, headcount has grown from 15 to more than 50. The company is hiring in San Francisco across engineering, marketing, and sales.

WebWire
Nov 10th, 2026
Garage raises $41M Series B for AI heavy equipment marketplace with $100M in annual sales

Garage, a New York-based AI marketplace for used heavy equipment such as fire engines and garbage trucks, raised $41 million in Series B funding. Invus Opportunities led the round, with Infinity Ventures, Initialized Capital, Y Combinator, Benchstrength, and FJ Labs also taking part. The round brings total capital raised to $60 million. Garage will use the money to hire staff and expand into public works and sanitation. The platform recently passed $100 million in annual sales, with growth of more than 400% year over year. It serves over 1,000 communities in all 50 states and Canada. Garage says a used fire truck costs about $150,000 on its platform, against as much as $2 million for a new one. Martin Hunt, a former firefighter and Goldman Sachs employee, is chief executive officer.

Zero G Talent
Nov 10th, 2026
Healia raises $18M to help dual-income families cut healthcare costs

Healia, a Columbus-based healthcare benefits platform, has launched with $18 million in total funding. It includes a $14 million Series A round led by 111° West Capital, with participation from Y Combinator, First Round Capital, Pioneer Fund, GoAhead Ventures, and North Coast Ventures. Founded in 2021 by chief executive officer Priyang Shah, Healia targets dual-income households, about 30 million of which in the US have access to two employer health plans. Its Total Care Option lets employers cover out-of-pocket costs and premiums when an employee joins a spouse's plan instead. The platform uses AI to read benefits booklets and compare plans. Healia says it can save families up to $26,000 a year and cut employer spending by up to 76% per enrolled household. It serves more than 50 customer accounts representing over 40,000 employees.

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