Y Combinator (YC)

Activity from announced rounds

Activity in this selectionFeb 28, 2026 · Feb 1, 2026

Y Combinator funds early-stage startups through a three-month accelerator in San Francisco, with four batches a year and a standard $500,000 investment for accepted companies.

The investment consists of $125,000 for 7% of the company and $375,000 on an uncapped SAFE with a most-favoured-nation provision. The second SAFE adds to YC’s ownership when it converts, so the full $500,000 is not exchanged for a fixed 7% stake.

During the batch, founders work with YC partners in individual and group office hours, build toward Demo Day and use the alumni community for feedback, hiring and introductions. Companies can apply before launch; YC also accepts businesses that already have users and revenue.

Sources
Rounds participated in
10
Confirmed lead rounds
—
10 roles undisclosed
New companies
10
First participation on record · 0 follow-on
Funding in participating rounds
$306.8M
10 disclosed · full round size, not this investor’s share

By stage

Seed3
Series B3
Series A2
Series C+1
Undisclosed1

By primary sector

Fintech6
AI4

By country

United States10

Rounds

10 in this selection
Trace

Builds workflow orchestration systems to provide context for AI agents in enterprises

$3MSeed
Role not disclosed
Dots

Provides a payouts API for marketplaces to pay workers and creators across payment rails globally

$8.9MSeries A
Role not disclosed
Encord

Provides AI-native data infrastructure for physical AI systems

$60MSeries C
Role not disclosed
Harper

AI-native commercial insurance brokerage matching small businesses with carriers for coverage

$46.8MSeed+Series A
Role not disclosed
Letter AI

Provides AI-native revenue enablement platform for go-to-market teams

$40MSeries B
Role not disclosed
Onshore

Builds AI-powered platform to help businesses claim and defend tax incentives like R&D credits with automation and expert review

$31MSeries B
Role not disclosed
Sphinx

Builds browser-native compliance agents for financial institutions

$7.1MSeed
Role not disclosed
Bretton AI

Provides AI agents for financial crime operations in regulated financial institutions

$75MSeries B
Role not disclosed
Simple AI

Builds voice AI agents to automate inbound phone calls for sales and support

$14MSeed
Role not disclosed
Pasito

Builds AI-native workspace for group health life and retirement benefits operations

$21MSeries A
Role not disclosed