Y Combinator Startups

Airbyte

Airbyte is the turnkey opensource data integration platform that gives your infrastructure super powers to move data seamlessly. Data Science Analytics

Last round: Series B Benchmark, Accel, Y Combinator, $150M Series B in 2021, $1.5B valuation

Flexport

Flexport is a licensed freight forwarder that uses people and software to manage the complexity of international trade. Logistics E-Commerce Freight Supply Chain

Last round: Series E Andreessen Horowitz, Founders Fund, Y Combinator, $935M Series E in 2022, $8.0B valuation

Supabase

Supabase is an open source Firebase alternative SaaS Developer Tools Enterprise Software

Last round: Series B Y Combinator, $80M Series B in 2022

Solugen

Creating chemicals that are safe, cost-effective, and environmentally-friendly Biotech Sustainability

Last round: Series C Y Combinator, Founders Fund, $350M Series C in 2021, $1.8B valuation

Spruce Systems

Building the most secure developer tools to share authentic data Crypto Blockchain Analytics

Last round: Series A Andreessen Horowitz, Y Combinator, $34M Series A in 2022

Fieldguide

AI-powered engagement platform for Assurance and Advisory firms Artificial Intelligence Enterprise Software

Last round: Series B Y Combinator, Bessemer, $30M Series B in 2024

Flutterwave

Flutterwave is the easiest way to pay and get paid across Africa. FinTech Payments Software

Last round: Series D Y Combinator, $250M Series D in 2022, $3.0B valuation

Checkr

Checkr seeks to automate the process of professional background checks. Legal Compliance Enterprise Software SaaS

Last round: Series E Y Combinator, Accel, $250M Series E in 2021, $4.6B valuation

SendBird

Sendbird developed a messaging-as-a-service API that provides chat, voice, and video messaging Messaging Chat API SaaS Enterprise Software

Last round: Series C Y Combinator, $221M Series C in 2021, $1.0B valuation

Tempo

Tempo is a home fitness platform, combining equipment, training, and social motivation with 3D sensors and artificial intelligence. Healthcare Fitness Artificial Intelligence Hardware

Last round: Series C Khosla Ventures, Founders Fund, Y Combinator, $220M Series C in 2021, $750M valuation

Podium

Podium is a customer communication platform for businesses who interact with customers on a local level. Messaging Customer Service Enterprise Software

Last round: Series D Y Combinator, Accel, $201M Series D in 2021, $3.0B valuation

MarqVision

Helps brands remove counterfeits from online marketplaces through AI-powered platform E-Commerce Legal Tech Artificial Intelligence

Last round: Series A Y Combinator, $20M Series A in 2022

Deel

Deel is a payroll and compliance platform for international employees and contractors. FinTech Human Resources Enterprise Software

Last round: Series D Andreessen Horowitz, Y Combinator, $200M Series D in 2021, $5.5B valuation

Newfront

Modern platform to transact insurance FinTech Insurance

Last round: Series D Founders Fund, Y Combinator, $200M Series D in 2022, $2.2B valuation

Rippling

Platform for companies to manage the full employee lifecycle Enterprise Software SaaS Human Resources

Last round: Series F Kleiner Perkins, Founders Fund, Y Combinator, Sequoia, $200M Series F in 2024, $13.5B valuation

Astranis

Astranis is a space startup that builds small and low-cost telecommunications satellites to provide internet access in remote regions. Space Hardware

Last round: Series D Andreessen Horowitz, Y Combinator, $200M Series D in 2024, $1.4B valuation

Lattice

Lattice empowers people leaders to build engaged, high-performing teams. SaaS Enterprise Software

Last round: Series F Khosla Ventures, Founders Fund, Y Combinator, $175M Series F in 2022, $3.0B valuation

Gusto

Gusto provides a cloud-based payroll, benefits, and human resource management solution. SaaS Enterprise Software Human Resources

Last round: Series E Kleiner Perkins, Y Combinator, $175M Series E in 2021, $10.0B valuation

Mux

Mux is a video platform designed to make video streaming and analytics possible for every development team. Video Streaming SaaS Analytics

Last round: Series D Andreessen Horowitz, Y Combinator, Accel, $154M Series D in 2021, $1.0B valuation

Standard AI

Provides an autonomous checkout tool that can be installed into retailers’ existing stores. Artificial Intelligence Hardware Retail

Last round: Series C Y Combinator, $150M Series C in 2021, $1.0B valuation

Vanta

Vanta is an automated security monitoring platform that helps companies get SOC 2, HIPAA, or ISO 27001 certified quickly. Cybersecurity Software

Last round: Series D Sequoia, Y Combinator, $150M Series D in 2025, $4.2B valuation

Function of Beauty

Personalized Shampoo + Conditioner based on your hair type, hair goals and preferences. E-Commerce Beauty

Last round: Series B Y Combinator, $150M Series B in 2020, $1.0B valuation

Fabric

Fabric is the headless commerce platform purposebuilt for growth. E-Commerce SaaS Marketing

Last round: Series C Bessemer, Y Combinator, $140M Series C in 2022, $1.5B valuation

Salt Security

Salt Security provides an API protection platform designed to prevent attacks by leveraging machine learning and AI. Cybersecurity Artificial Intelligence API

Last round: Series D Sequoia, Y Combinator, $140M Series D in 2022, $1.4B valuation

Observe.AI

Observe.AI develops a voice AI platform for contact centers, turning agents into top performers. Artificial Intelligence Sales Enterprise Software

Last round: Series B Y Combinator, $123M Series B in 2020

Webflow

Building 100% customizable no-code website builder used by 3M+ people Consumer Web Development SaaS

Last round: Series C Accel, Y Combinator, $120M Series C in 2022, $4.0B valuation

Apollo.io

Builds sales intelligence and engagement platform Lead Generation Sales Automation Enterprise Software

Last round: Series C Y Combinator, Sequoia, $110M Series C in 2022, $900M valuation

Conveyor

SaaS platform helping companies build trust with each other by simplifying the exchange of security information SaaS Cybersecurity

Last round: Seed Y Combinator, Thrive Capital, $10M Seed in 2021

People.ai

People is an AI platform for enterprise sales, marketing, and customer success that uncovers revenue opportunities. Artificial Intelligence Enterprise Software

Last round: Series D Andreessen Horowitz, Y Combinator, $100M Series D in 2021, $1.1B valuation

GO1

GO1 allows companies to upscale their workforce with on-demand training and a dynamic content-driven platform. EdTech Training Enterprise Software

Last round: Series D Y Combinator, $100M Series D in 2022, $2.0B valuation

Veriff

Veriff is a global tech company building a visionary AI driven verification platform. Artificial Intelligence Cybersecurity Identity

Last round: Series C Y Combinator, Accel, $100M Series C in 2022, $1.5B valuation

Fountain

Automate your recruiting - background checks, document signing, scheduling, city management - in one simple dashboard SaaS Recruiting Enterprise Software

Last round: Series C Y Combinator, $100M Series C in 2022, $1.0B valuation

Replit

Collaborative, in-browser IDE to code in 50+ languages - no setup time required SaaS Developer Tools EdTech

Last round: Series B Y Combinator, Andreessen Horowitz, $97M Series B in 2023, $1.2B valuation

FightCamp

FightCamp provides on-demand boxing and HIIT workouts with motion trackers on wrists that track every punch thrown and every rep completed. Healthcare Fitness SaaS Hardware

Last round: Series B Y Combinator, $90M Series B in 2021

arketa

Make it easy for fitness instructors to build an online business SaaS Fitness

Last round: Series A Y Combinator, $8M Series A in 2022

HighTouch.io

Sync customer data to your SaaS, marketing, sales, and success platforms. Marketing Enterprise Software SaaS Sales

Last round: Series C Y Combinator, $80M Series C in 2025, $1.2B valuation

Lob

Lob provides direct mail and address verification APIs which allows businesses to send personalized mail to their customers. Developer APIs SaaS

Last round: Series C Y Combinator, $79M Series C in 2021

Snackpass

Snackpass is a social commerce platform that focuses on mobile order pickup at local restaurants. Restaurants E-Commerce

Last round: Series B Andreessen Horowitz, Y Combinator, $70M Series B in 2021, $400M valuation

Frubana

B2B platform of agri-products for restaurants & small retailers in LatAm Retail Agriculture Restaurants

Last round: Series C Y Combinator, $65M Series C in 2021

Relativity Space

Building humanity’s multiplanetary future, starting with Terran 1 – the world’s first entirely 3D printed rocket. Hardware Space 3DTech

Last round: Series E Y Combinator, $650M Series E in 2021, $4.2B valuation

Shepherd

Shepherd is making construction safe and sustainable through innovative insurance products. FinTech Insurance Construction

Last round: Seed Y Combinator, $6M Seed in 2021

Tavus

Use your voice for sales, without ever saying a word Artificial Intelligence SaaS Sales

Last round: Series A Sequoia, Y Combinator, $6M Series A in 2023

VergeSense

VergeSense is a software-as-a-service company that develops artificial intellegence-powered workplace sensors. SaaS Artificial Intelligence Sensors Hardware

Last round: Series C Y Combinator, $60M Series C in 2021

Squire

Squire offers a barbershop management and POS/Booking mobile application. FinTech Retail Point of Sale Booking

Last round: Series D Y Combinator, $60M Series D in 2021, $750M valuation

Middesk

Automates business verification and underwriting to help B2B companies onboard customers faster and more reliably SaaS Enterprise Software

Last round: Series B Sequoia, Accel, Y Combinator, $57M Series B in 2022

Meesho

Start your free online shop in seconds E-Commerce

Last round: Series F Y Combinator, $570M Series F in 2021, $4.9B valuation

Mutiny

Help businesses convert more demand into revenue through no-code website personalization SaaS Marketing Sales

Last round: Series B Sequoia, Y Combinator, $50M Series B in 2022, $600M valuation

AssemblyAI

Building #1 rated API to transcribe and understand audio data Artificial Intelligence Speech Recognition Enterprise Software

Last round: Series C Accel, Y Combinator, $50M Series C in 2023

Boom Supersonic

Boom Supersonic is a commercial airplane manufacturer that builds supersonic airliners designed for speed, safety, and sustainability. Travel Space Hardware

Last round: Series B Y Combinator, $50M Series B in 2020, $1.0B valuation

Deepgram

Provide developers with a simple to use Speech-to-Text API API Natural Language Processing Speech Recognition Artificial Intelligence

Last round: Series B Y Combinator, $47M Series B in 2022