Y Combinator (YC)

Activity from announced rounds

Activity in this selectionSep 30, 2026 · Sep 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
27
Confirmed lead rounds
4
All roles disclosed
New companies
27
First participation on record · 0 follow-on
Funding in participating rounds
$2B
24 disclosed · full round size, not this investor’s share

By stage

Seed9
Series A7
Series C+5
Pre-seed4
Series B2

By primary sector

Enterprise software7
AI5
Developer tools4
Fintech2
Space tech2
7 more
Biotech1
Business services1
Ecommerce1
Hardware1
Healthtech1
Logistics1
Robotics1

By country

United States20
Belgium2
Denmark1
Germany1
India1
2 more
Poland1
Saudi Arabia1

Rounds

27 in this selection
Jeeves

Jeeves provides a financial platform for global businesses, combining corporate cards, cross-border payments, expense controls and treasury tools.

$110MSeries C-1
Participant
flowscope

flowscope automates enterprise work by connecting business processes and using AI to reduce repetitive operational tasks.

$3.8MSeed
Participant
WonderTx

AI models designed to discover oral medicines for diseases currently treated with injectable drugs.

$125KSeed
Participant
ByteAsk

ByteAsk develops AI coding agents for engineers working on C and C++ software in demanding industrial and technical environments.

$1MPre-seed
Lead
Hubble Network

Hubble Network connects ordinary Bluetooth devices to satellites, extending asset tracking beyond the reach of cellular networks.

$200MSeries C
Participant
Numeral

AI-powered software that automates sales tax and VAT compliance for global businesses.

$100MSeries C
Participant
Firecrawl

A web-data API that turns websites into structured data for developers building AI applications and agents.

$75MSeries B
Participant
Confido

Confido connects accounting, finance, sales and operations data so consumer brands can manage deductions, trade spending and supply plans together.

$55MSeries B
Participant
Spott

Spott provides recruitment agencies with an applicant-tracking and customer-relationship system for candidate search, outreach and hiring workflows.

$21MSeries A
Participant
StarSling

Fast GitHub Actions runners paired with AI agents that optimize continuous integration workflows.

UndisclosedPre-Seed
Participant
CatchBack Cards

CatchBack turns physical trading cards into a digital mystery-pack marketplace. Customers can open packs, see transparent odds and use trading and instant buyback features that make collectible pricing and resale more accessible.

$7.8MSeed
Participant
Raindrop

A monitoring and reliability platform that detects failures in production AI agents, investigates their causes and helps developers prevent repeats.

UndisclosedSeries A
Participant
Angle Health

A health-insurance carrier and digital benefits platform that helps employers offer group plans and supports members in using their coverage and care.

$200MSeries C and tender offer
Participant
Kastle

AI agents for banks and lenders that automate routine lending and loan-servicing work across existing systems.

$24MSeries A
Participant
Complir

Complir helps retailers and brands manage product safety and regulatory compliance across the markets where they sell.

$11MSeed
Participant
TesterArmy

AI agents that automate software testing and help teams improve application quality.

€1MPre-Seed
Lead
Robocurve

Independent benchmarks that test how well AI models control real robots.

$10MSeed
Participant
VideoGen

AI video-creation software that helps creators, businesses and teams turn briefs or source media into editable, localized videos.

$3.3MSeed
Lead
Blee

Blee gives legal, compliance and marketing teams an AI-assisted system to review promotional content against their rules before publication and monitor websites, social media and partner channels afterward.

$20MSeries A
Participant
Stoke Space Technologies

Stoke Space develops Nova rockets with reusable first and second stages for commercial and government launch customers.

$1BSeries E initial closing
Participant
Metal

An AI fundraising workspace that helps founders identify investors, research firms and manage venture rounds.

$4.5MSeed
Lead
Sirdab

Sirdab connects businesses with warehouse and transport capacity across Saudi Arabia and the GCC, while helping providers and shippers coordinate inventory, orders and service quality.

$10MSeries A
Participant
Zeit AI

ZeitMind connects mid-sized companies' ERP, CRM, HR and other systems, prepares their data and turns plain-language business questions into traceable reports, dashboards and applications.

€5MSeed
Participant
Wafer

Wafer runs AI inference infrastructure that adapts a model-serving stack to each customer's workload. It benchmarks and tunes models, engines, kernels and available hardware together, then keeps optimizing live serving for latency, reliability and cost as traffic changes.

$40MSeries A
Participant
Conveo

An AI-led consumer research platform that conducts video interviews and turns responses into searchable insight for product, marketing and strategy teams.

$50MSeries A
Participant
Kalinda

Kalinda uses AI to help plaintiff-side class action and mass tort firms review case information and qualify potential claims.

$500KPre-Seed
Participant
Huscarl

An AI actuarial platform that helps companies model and manage risks retained through their own insurance captives.

$5.6MSeed
Participant