Y Combinator

Y Combinator functions as an accelerator and early-stage investor with an expanded growth-stage presence in New York [1]. In Q2 2026, it ranked as the second most active investor in New York City startups, completing 8 deals while expanding its growth-stage focus in health tech, AI fintech, and enterprise software [2]. The organization's company directory identifies 220 AI startups headquartered in New York City that have received Y Combinator backing [3]. During July 2026, Y Combinator participated in New York AI funding rounds including Henry AI's $16.5 million seed round and dili's $15 million Series A [4].

Investments

• Aleph

  NYC company founded in 2020 by Albert Gozzi, offering an AI-native financial planning and analysis platform that connects company data through Excel and Google Sheets and eliminates the bulk of manual reporting work for finance teams.

• Avallon

  Williamsburg, Brooklyn company founded by Cornelius Schramm, Bryan Guin, Moritz Bartusch and Leander Peter, building AI agents that run insurance claims operations end to end, from intake calls and medical-report extraction to coordinating with employers and repair shops.

• Avoca

  An AI front office platform that provides call handling, scheduling, and customer communications for home services businesses

• Cinder

  A trust and safety platform that deploys AI agents to help companies detect and respond to digital abuse, fraud, and manipulation

• Dili

  An AI-native compliance platform that automates prevailing wage monitoring and certified payroll review for infrastructure, construction, and energy projects

• F2

  F2 is the AI platform for private markets investors.

• Henry

  Automating Deal Decks for Commercial Real Estate Brokers

• Nourish

  Telehealth platform connecting chronic-condition patients with insurance-covered registered dietitians

• PermitFlow

  NYC company founded in 2021 by Francis Thumpasery and Samuel Lam, building construction permitting software that automates permit preparation and submission.

• Prosper

  Prosper builds AI phone agents for healthcare providers.

• Ralo

  Ralo is the first AI-native mortgage broker.

• Stepful

  New York company running an AI-powered training platform for allied healthcare jobs.

• Taktile

  Decision platform letting risk and fraud teams at banks and fintechs build, test and run automated credit and onboarding decision flows with AI.

• Warp

  An AI-native employee management platform that automates payroll, compliance, and benefits for high-growth companies

In the news

• Ayush Sharma on X@ayushswrites · Aug 14, 2026
• Robinhood to list a fund that lets anyone back Y Combinator startupsTechCrunch Venture · Aug 5, 2026

Alumni 1 went on to found or lead

• Rachel O'DriscollFounder→Co-Founder & President at Simbie AI

The full Y Combinator mafia →

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