Y Combinator Portfolio

YC-Backed Companies

5,949 Y Combinator portfolio companies tracked in the Altss database. For each company, Altss surfaces which family offices have co-invested alongside YC.

Summer 2023

(99 companies)
Minded logo
S23

Minded

Cursor for AI Agents

Mocha logo
S23

Mocha

Build and publish web apps in minutes. No coding required.

Morph logo
S23

Morph

Subagents and tools that improve coding agents

Movley logo
S23

Movley

Your e-commerce brand's product quality control department.

Nanograb logo
S23

Nanograb

Deliver genes to any cell with AI

Nectar logo
S23

Nectar

Manage energy cost & usage with AI for facility & sustainability teams

Nowadays logo
S23

Nowadays

AI co-pilot for corporate retreat and event planning

Numen logo
S23

Numen

Engineering a future without cancer deaths.

Obento Health logo
S23

Obento Health

CRM Co-Pilot for Medtech Sales

Ohmic Biosciences logo
S23

Ohmic Biosciences

Genetically engineering plants for disease resistance.

Olio Labs logo
S23

Olio Labs

Combination therapeutics for the world's toughest diseases

Onward logo
S23

Onward

Intelligent meeting automation for ambitious teams.

OpenPipe logo
S23

OpenPipe

Turn expensive prompts into cheap fine-tuned models

enterprise infrastructure · United States

OpenTools logo
S23

OpenTools

The API for LLM tool use

Opensteer logo
S23

Opensteer

Specialized agents for real work

Ora AI logo
S23

Ora AI

Med school can be simpler

Orbio Earth logo
S23

Orbio Earth

Tracking methane emissions with satellites

Osium AI logo
S23

Osium AI

Speed up materials innovation with Artificial Intelligence

technology · France

Outset logo
S23

Outset

AI-powered user interviews

ParadeDB logo
S23

ParadeDB

Simple, Elastic-quality search for Postgres

technology · United States

Parea logo
S23

Parea

Test, evaluate & observe your LLM applications

PeerDB logo
S23

PeerDB

Fast, native ETL for Postgres 🐘 🚀

Pincites logo
S23

Pincites

Close deals faster with AI for contract negotiation

Pointhound logo
S23

Pointhound

Earn and redeem credit card points for free flights

PropRise logo
S23

PropRise

The AI platform for CRE investment teams

Prosper logo
S23

Prosper

AI Phone Agents for Healthcare Operations

Pure logo
S23

Pure

Marketplace for Rare Coins & Precious Metals

Quill Bills logo
S23

Quill Bills

AI-Powered Medical Billing

Rankai logo
S23

Rankai

AI-Native Agency for Organic Growth (SEO & GEO)

Read Bean logo
S23

Read Bean

Learn language with real-world content, at your level

Readily logo
S23

Readily

AI Compliance Platform for Healthcare Organizations

RecipeUI logo
S23

RecipeUI

The open source Postman alternative.

Remy logo
S23

Remy

Making it simpler for medical clinics to work with insurance

Repaint logo
S23

Repaint

Build a website by chatting with AI

Revamp logo
S23

Revamp

AI-Powered Customer Segmentation for eCommerce

Reworkd logo
S23

Reworkd

The simplest way to extract web data at scale

Rimward logo
S23

Rimward

Low-false-positive intrusion detection for remote outdoor sites

Roame logo
S23

Roame

Flight search engine using credit card points and miles

Rocketeer logo
S23

Rocketeer

Claude Code for GTM

Roundtable logo
S23

Roundtable

Proof of Human - invisible human verification

SID logo
S23

SID

AI research lab for retrieval

Saatvy logo
S23

Saatvy

Root cause help for chronic conditions

SafetyKit logo
S23

SafetyKit

AI agents for risk, compliance, and safety

enterprise applications · United States

Santé logo
S23

Santé

All-in-one POS for liquor stores

Sendblue logo
S23

Sendblue

iMessage for Sales

Serra logo
S23

Serra

Your 24/7 AI Recruiter

Shadeform logo
S23

Shadeform

The GPU Cloud Marketplace

Shasta Health logo
S23

Shasta Health

AI calling & browser agents for healthcare

Sidenote logo
S23

Sidenote

Meeting follow-up, automated

Silimate logo
S23

Silimate

The copilot for chip designers

Simbie AI logo
S23

Simbie AI

We get patients to their next appointment

Skyvern logo
S23

Skyvern

Open Source AI Agent to automate browser workflows via an API

technology · United States

Slicker logo
S23

Slicker

Recover payment failures and maximize subscription Revenue

Smobi logo
S23

Smobi

Send texts your customers actually want over RCS

technology · United States

Sohar Health logo
S23

Sohar Health

AI-powered insurance verification to boost patient conversion.

healthcare · United States

Sola logo
S23

Sola

Copilot for Robotic Process Automation

Solve Intelligence logo
S23

Solve Intelligence

AI patent drafting, prosecution, litigation and more for legal teams.

Spine AI logo
S23

Spine AI

Manage a swarm of AI agents to get real work done

Stellar Sleep logo
S23

Stellar Sleep

We help people with chronic insomnia sleep better, using psychology.

healthcare · United States

Strada logo
S23

Strada

AI agents that run insurance operations

Structured Labs logo
S23

Structured Labs

The publishing layer for the agentic internet

Studdy logo
S23

Studdy

An AI math tutor for every student

Subsets logo
S23

Subsets

AI-driven Retention Automation for subscription media businesses.

Surface Labs logo
S23

Surface Labs

Building the AI-powered marketing ops platform that turns website…

Sweep logo
S23

Sweep

The best AI coding assistant for JetBrains

Sweetspot logo
S23

Sweetspot

AI for Government Contracting.

Synch logo
S23

Synch

Supercharging Sales

SyntheticFi logo
S23

SyntheticFi

Low cost securities-backed lending for financial advisors and HNWI

Talc logo
S23

Talc

Event extraction for Medical Researchers

Tempo logo
S23

Tempo

Visual Editor for React, powered by AI

Terminal logo
S23

Terminal

Plaid for Telematics Data in Commercial Trucking

real estate · Georgia

Terracotta AI logo
S23

Terracotta AI

AI-powered Infrastructure as Code PR reviews

Tiptap logo
S23

Tiptap

The open-source document editor for humans and AI agents.

fintech · Canada

Trainy logo
S23

Trainy

Infrastructure for managing GPU clusters for training/serving.

Trayd logo
S23

Trayd

A construction payroll platform designed for same-day pay.

Tremor logo
S23

Tremor

The UI toolkit for Dashboards

Twenty logo
S23

Twenty

Open Source CRM

technology · France

Twine logo
S23

Twine

AI text message receptionist for SMBs

Unhaze logo
S23

Unhaze

The right leads at the right time for B2B sales

Upstream logo
S23

Upstream

The first inbox designed for humans and agents

Vango AI logo
S23

Vango AI

Development platform that makes it 10x easier to improve visual models

VaultPay logo
S23

VaultPay

Digital banking platform for the 30 million smartphone users in DRC.

VectorShift logo
S23

VectorShift

No-Code Generative AI Automations Platform

Venta AI logo
S23

Venta AI

The compliant AI colleague for sales teams in Europe

technology · Germany

VetRec logo
S23

VetRec

AI Scribe for veterinarians. Saving time and improving patient care.

Vizly logo
S23

Vizly

Data to insights in seconds

Watto AI logo
S23

Watto AI

AI-powered McKinsey-quality reports in seconds

Wattson Health logo
S23

Wattson Health

AI Voice and SMS Agents for Healthcare

Webhound logo
S23

Webhound

Long-horizon research agents

Xeol logo
S23

Xeol

Close your outdated dependency attack vector

Y/n logo
S23

Y/n

Play a fun story

Zelos Cloud logo
S23

Zelos Cloud

The Data Platform for Mission‑Critical Systems

dili logo
S23

dili

Automating PWA Compliance and Diligence

kapa.ai logo
S23

kapa.ai

The fastest way to build AI assistants on technical content

enterprise applications · Denmark

maintouch logo
S23

maintouch

Scale SEO and AI SEO from one platform.

refine logo
S23

refine

Open-source Retool for enterprise

sizeless logo
S23

sizeless

Instant 3D Digital Twins for Smarter Real Estate.

technology · France

sudocode logo
S23

sudocode

orchestrate your coding agents with sudocode

truemetrics logo
S23

truemetrics

We show couriers where to park and enter a building.

Summer 2022

(101 companies)
100x logo
S22

100x

Create, Share, and Monetize AI Agents

ALT TEX logo
S22

ALT TEX

Biodegradable and carbon neutral textiles, engineered from food waste.

AccessOwl logo
S22

AccessOwl

Managing your Employees' Access to SaaS

Activepieces logo
S22

Activepieces

Open-source, AI-first and no-code business automation tool

AiPrise logo
S22

AiPrise

AI-powered Global Compliance Platform

Airhart Aeronautics logo
S22

Airhart Aeronautics

Airplanes anyone can fly

Airtrain AI logo
S22

Airtrain AI

No-code data curation for LLM fine-tuning and evaluation.

Albiware Inc. logo
S22

Albiware Inc.

B2B SaaS for insurance damage repair contractors.

Aldara logo
S22

Aldara

HOA manager with automated operations

AlgoTest logo
S22

AlgoTest

Ecosystem for options trading in India

Alma logo
S22

Alma

Gamified mobile banking app where people can win $1M every Wednesday

Almond logo
S22

Almond

We make it easy to get great ObGyn care in-person and over telehealth

Alterya logo
S22

Alterya

Protecting Humans from Scams

Anchor logo
S22

Anchor

Embedded finance platform for African businesses

AnythingLLM logo
S22

AnythingLLM

Building the definitive all-in-one on-device AI productivity tool

Apply Design logo
S22

Apply Design

Helping realtors showcase the full potential of their properties

Aragorn AI logo
S22

Aragorn AI

Operating system for HR in the AI era

Argovox logo
S22

Argovox

Voice AI agents for patient billing and collections

Array Labs logo
S22

Array Labs

We're building satellites to create a real-time 3D map of the world.

Artemis Search logo
S22

Artemis Search

A search technology that actually finds what you’re looking for.

Atlas logo
S22

Atlas

E-Sign API for AI Agents

Aurelian logo
S22

Aurelian

Automating non-emergency calls for 911 centers

AviaryAI logo
S22

AviaryAI

Outbound AI voice agents for the financial services industry

Avina logo
S22

Avina

GTM signals engine for sales teams. Automate warm outbound with AI.

Axle logo
S22

Axle

AI-native clearinghouse for insurance

Ballerine logo
S22

Ballerine

Agentic Intelligence Layer for Merchant Risk Decisions

Banabo logo
S22

Banabo

ML Marketing Infrastructure

BiggerPicture logo
S22

BiggerPicture

Scheduling automation platform between trucking and warehousing

Birch Biosciences logo
S22

Birch Biosciences

We recycle plastic using engineered enzymes

Bitstack logo
S22

Bitstack

All things money, with better money

fintech · France

Blee logo
S22

Blee

Smart, fast, and collaborative compliance reviews

Blitz logo
S22

Blitz

Lovable for non-tech users: Build no-code internal and customer apps

Blockscope logo
S22

Blockscope

Palantir for Web3

BlueHill Payments logo
S22

BlueHill Payments

Client management, communication, and projects in one platform.

Boostly logo
S22

Boostly

Premier growth platform for restaurants

Boton logo
S22

Boton

Accounting software with an AI agent

Boundo logo
S22

Boundo

Using generative AI to 10x outbound sales, all on autopilot!

BricksAI logo
S22

BricksAI

Streamlining LLM application management for enterprises

Bridgecard logo
S22

Bridgecard

Card issuer for Africa

CAPSULE logo
S22

CAPSULE

Buy anything you find on social media

Cambio logo
S22

Cambio

AI-native commercial real estate operations

Capix logo
S22

Capix

AI-powered private equity intelligence.

Cashboard logo
S22

Cashboard

Inventing the solo CFO.

Cerrion logo
S22

Cerrion

Video AI to automatically detect and respond to production line…

technology

Champ logo
S22

Champ

AI SDR

Chariot logo
S22

Chariot

A payment network connecting nonprofits to the $326B in DAFs

consumer

Chordio logo
S22

Chordio

Claude Code design workspace built for product teams

Chowdeck logo
S22

Chowdeck

On-demand food delivery for Africa

consumer · Nigeria

Ciro logo
S22

Ciro

GTM AI that books you 5-8 meetings/week

Cisterna Biologics logo
S22

Cisterna Biologics

High quality mRNA for therapeutic application

Clearline logo
S22

Clearline

AI operating system for car dealerships to capture missed revenue

Clinikally logo
S22

Clinikally

India's Telemedicine Platform & Online Pharmacy for Dermatology Care

healthcare · United States

Cobbery logo
S22

Cobbery

Enabling discovery to be done entirely in-house

CodeCanary logo
S22

CodeCanary

Find and fix bugs from session replays with AI

CodeCrafters logo
S22

CodeCrafters

Programming courses for experienced engineers

CompUp logo
S22

CompUp

Building a compensation graph to help companies optimise people spend

hrtech · India

Cone logo
S22

Cone

Work operating system for professional service businesses

Coris logo
S22

Coris

AI risk and ops platform for Payment Processors, Banks, SaaS…

Coupl logo
S22

Coupl

Banking designed for Indian couples.

Coverage Cat logo
S22

Coverage Cat

Consumer Optimized Insurance

Craze logo
S22

Craze

Actually do things with the right AI models, apps and agents for you

CustomerOS logo
S22

CustomerOS

Uncover high-fit leads already silently engaging with your brand

Delegasi logo
S22

Delegasi

Automated accounting service for small businesses in Indonesia

Delfino AI logo
S22

Delfino AI

Generative AI for administrative automation in healthcare

Denormalized logo
S22

Denormalized

serverless platform for real-time data

Dev Tools AI logo
S22

Dev Tools AI

AI powered web & mobile automation

Devyce logo
S22

Devyce

The global mobile network for business.

telecom · United Kingdom

Dialect logo
S22

Dialect

AI copilot for forms, questionnaires & RFX

Disclo logo
S22

Disclo

Health disclosure and accommodation management platform

Dittofeed logo
S22

Dittofeed

Open-source customer engagement & messaging automation

Diversion logo
S22

Diversion

A scalable, cloud-native Perforce and Git alternative

Dr. Treat logo
S22

Dr. Treat

“One Medical for pets.”

healthcare · United States

Drahim 💰 logo
S22

Drahim 💰

WealthFront for Saudi & Middle East

Drip logo
S22

Drip

Shop and pay in installments anywhere

ECSA logo
S22

ECSA

AI Agent runs the entire international trade operation

Ekho logo
S22

Ekho

Shopify for vehicles

fintech · United States

Elessar logo
S22

Elessar

AI-powered engineering productivity tools

Emerge Career logo
S22

Emerge Career

All-in-one re-entry & workforce development training platform

Entvin logo
S22

Entvin

EthosX logo
S22

EthosX

The protocol for derivatives on blockchains

Eugit Therapeutics logo
S22

Eugit Therapeutics

Enabling Tissue Targeting of Therapies

Evoly logo
S22

Evoly

Smart electric & water meters as a service

Express Building logo
S22

Express Building

Financing Southeast Asia's ~$1 trillion housing backlog

Feather logo
S22

Feather

Voice AI

fintech · Germany

Fetii logo
S22

Fetii

Fetii is an AI-driven mobility platform

Findly logo
S22

Findly

Co-pilot for Business Intelligence

Fini logo
S22

Fini

Fini | Automate 80% of enterprise support with AI agents

Firecrawl logo
S22

Firecrawl

The API to search, scrape, and interact with the web at scale. 🔥

technology · United States

Flair Labs logo
S22

Flair Labs

The world's first digital concierge for real estate and lending

FlatX logo
S22

FlatX

AI-Powered Rental Platform for Urban Renters

FlyCode logo
S22

FlyCode

Recover failed subscription payments to increase retention and LTV

FoodCourt logo
S22

FoodCourt

Virtual Restaurants & Stores for Africa

Grai logo
S22

Grai

Open source version control for metadata

Guardian Bio logo
S22

Guardian Bio

Dendritic cell-based platform for cancer therapy

Gullak Money logo
S22

Gullak Money

Gullak automates savings & invests these in gold

fintech · India

HOMLI logo
S22

HOMLI

Sell your home without brokers

Hedgehog logo
S22

Hedgehog

Building robotic mushroom farms

Hype logo
S22

Hype

Trade memecoins

HyperDX logo
S22

HyperDX

Open-source, dev-friendly observability.

Illuminant Surgical logo
S22

Illuminant Surgical

A new way of seeing inside the human body.

InVision Medical Technology logo
S22

InVision Medical Technology

AI Diagnosis of Heart Disease

Page 18 of 30

Which family offices back YC companies?

Altss tracks family office deal activity across the YC portfolio. Request access to see investor-level data, round participation, and LP mandates.

Request access