YC-Backed Companies

StackLead

Lead intelligence as a service. We want to be your personal lead…

Style Lend

Marketplace for Luxury Fashion Rentals.

Terravion

Real time Google Earth for agriculture -- imagery collected weekly…

Theorem

The mission of Theorem is to make credit safe and available. We use…

Threadable

Mailing lists 2.0. Threadable makes group email less noisy and more…

TrueVault

We make Privacy Software for SMBs.

Two Tap

Two Tap connects retailers to companies that want to sell their…

Unbabel

AI-powered Language Operations platform

Unicornly

Unicorn.ly makes fundraising more efficient for both angel investors…

Vidpresso

Help media companies make quality live video. [Acquired by Facebook]

Weave

Customer communication and payments platform.

Whirlscape

Mobile keyboards + emoji + deep learning. We make Dango. We also made…

Wit.ai

Natural Language for Developers --Wit is an API that makes it easy…

Yumbin

App replaces office vending.

Zesty

Zesty serves delicious, healthy meals from the best local restaurants…

Zidisha

Direct P2P lending across the international wealth divide.

Zinc

The secret backbone of e-commerce.

ZowPow

Wireless toy game controllers for mobile games.

Airware

Airware provides end-to-end solutions that enable enterprises to…

Appcubator

The easiest way to prototype web applications.

BeatDeck

Music, Metrics... Meritocracy. (Upload Music, Connect your Social…

Bitnami

The App Store for Server Software

BuildZoom

BuildZoom is a better way to remodel. We connect homeowners to the…

Cheetah

Fastest, easiest, and most affordable way for small business owners…

CircuitLab

Online circuit simulator and electronic schematic editor.

Coin

A mobile wallet that allows you to pay everywhere credit cards are…

CrowdMed

CrowdMed harnesses the wisdom of crowds to solve difficult medical…

Etleap

Etleap is an ETL solution for creating perfect data pipelines.

Experiment

crowdfunding platform for science

Fivetran

The leader in automated data movement

FlightCar

FlightCar is the Airbnb of Car Rentals at Airports. We allow people…

Goldbelly

Empowering restaurants and small food makers to ship nationwide.

GrepData

Big Data Analytics

Heap

Captures user interactions with no code to generate analytics.

InfluxData

The platform for building and operating time series applications.

Kalibrr

Kalibrr connects SEAsian talent to your local & global jobs.

Lawdingo

Lawdingo provides virtual paralegal services to law firms.

Logiblock

Logiblock engineers electronics and development tools to dramatically…

Lollipuff

Online Auctions for Authentic (Women's) Designer Goods

MedXT

Radiology in the cloud. X-rays, CAT scans, MRI's, and…

Medisas

Medisas builds workflow & collaboration software for hospitals.

Meldium

Simple password & identity management for teams. Acquired by LogMeIn…

North

Wearable computing hardware: biosignal gesture recognition

Padlet

Papyrus → Parchment → Paper → Padlet

PayTango

Simple invoicing

Posmetrics

Ultra-short feedback surveys on tablets mounted in businesses. Higher…

Prophecy Sciences

Predicting workplace performance through neuroscience

RADAR

RADAR is building technology to completely transform the in-store…

RoverRide

A universal urban transit app. Given all transportation options…

Screenhero

Collaborative Screen Sharing — you each get your own mouse, and…

Scuba

Analytics for impatient people.

Semantics3

Data and AI platform for Ecommerce & Cross-Border Logistics

SimplyInsured

We sell health insurance to small businesses 100% online.

Strikingly

The easiest way to create a beautiful, mobile optimized website.

StyleUp

StyleUp brings effortless joy to getting dressed with daily,…

Swapbox

Stop missing deliveries. Ship to Swapbox and pick up at our kiosks.

Swish

Kickstarter for physical products. Shop exclusive product launches.

Teespring

IMPORTANT: The original YC founders are no longer involved with this…

Trainzen

Educational assessments made easy. Eliminating paper-based exams in…

VaycayHero

VaycayHero is a marketplace of professionally managed vacation…

Watsi

Watsi is the first global crowdfunding platform for medical…

Wefunder

We're Robinhood for pre-IPO startups. Everyone can invest $100.

Wevorce

Changing divorce for good by making it a way less horrible experience…

Zenefits

HR for small businesses: onboarding, payroll and benefits.

42Floors

We make it easy to search for office space.

99dresses

We're creating every women's fantasy by combining the unwanted…

Amiato

The BI bridge for unstructured data. We automatically bridge the gap…

Amplitude

Digital Analytics Platform

Ark

Ark organizes the world's social information.

Authy

Authy is a Two-Factor Authentication platform for developers

BarSense

Kid's first smartphone with web-based parental controls.

BookSolid

BookSolid is the opentable for tour operators.

Brace

Backlift allows front-end only developers to build entire websites…

Carsabi

Carsabi is the search engine for used cars

Chute

Discover the photos and videos people are taking of your brand or…

CircuitHub

On-Demand Electronics Manufacturing

CleverDeck

Collaborate with an artist to commission original artwork you'll live…

CoderWall

Couple

App that connects two phones and creates a private timeline to share…

Documents.Me

Client-side encryption for your devices and the cloud.

Exec

Exec is a house cleaning service that users can book from their…

FamilyLeaf

Help families stay in touch

FarmLogs

Software that helps farmers operate more profitable businesses.

Flutter

Flutter combined computer vision technology with the built-in webcams…

Fond

Rewards and recognition SaaS for HR leaders

GiveSpark

Givespark was a celebrity charity fundraising platform

Glider

We filter distracting emails away from your inbox.

Grouper

We set up drinks between 2 groups of friends: 3 guys and 3 girls.

Gusto

Provides growing businesses with everything to take care of their team

HackPad

A realtime wiki for getting things done.

Hipmob

Customer communication for iOS and Android developers - an in-app…

HireArt

Gives businesses everything needed to hire & manage W2 contractors.

Jellyfish Art

LVL6

We make mobile MMOs.

LendUp

LendUp is a socially responsible company on a mission to redefine…

Loom

Cloud storage for photos and videos (acquired by Dropbox).

Make School

Make School is redesigning college for the 21st century. Students…

Marft

Marft creates embeddable machine learning models for application…

Matterport

Turn physical objects and environments into 3D models in seconds.

Medigram

We are making a HIPAA-compliant, Groupme app for doctors to…

Medmonk

A tool for pharmacists to find funding for patients who are unable to…

Midnox

Minefold

Simple multiplayer game servers.

MyVR

The open platform for the vacation rental industry.

Optilly/Installmonetizer

Fb ad optimization platform

Per Vices

Building Mission Critical Software Defined Radio products.

Pixelapse

Github for designers. We automatically keep track of revisions of…

PlanGrid

Mobile applications for the construction industry.

Priceonomics

We help companies turn their data into great stories.

Rescale

High Performance Computing Built for the Cloud

Ridecell

World's Leading Fleet Intelligence Platform

Screenleap

One-click screen sharing with installation-free viewing on all devices

SendHub

Simple Business SMS. SMBs to Large Enterprise.

Sendwave

Instant, no fee international remittances.

Shoptiques

Shoptiques.com lets you shop the world's best local boutiques online.

Shopular

Deals, Coupons & Cash Back for your favorite stores.

SlidePay

Banking and Payment Platform APIs. Exited October 2014.

Socialcam

The easiest way to share videos with friends and family.

SolidStage

Sysadmin as a service. We make deploying, configuring, monitoring,…

Swiftype

Smart search for the modern team.

Talkray (TiKL)

Instantly talk or text to one or a group of friends at once with the…

Tap to Learn

Games For Education

The Muse

The Muse is values-based job search & hiring for 7M+ monthly

Tilt

Mobile crowdfunding: The easiest way to collect, fundraise, and sell…

Wave

Mobile money app for Africa

WireOver

Really secure file sending for big files.

YourMechanic

Car Repairs, Reinvented:a. Mechanic comes to your home or work to fix…

Zillabyte

Palantir for sales people

Zipio

Deal search service

iCracked

On-demand smartphone repair in 3 countries and launching smart home…

Acunote

AppHarbor

.NET Cloud Platform as a Service

Apportable

iOS porting

Assembled

Pivoted to TenXList, a professional network of top college engineers.

Balanced

Payments for Marketplaces

Beetailer

Facebook stores.

Close

CRM and sales automation tools for startups and SMBs

Comprehend

SaaS to increase speed and quality of clinical trials.

Convore

Hosted IRC and so much more.

Custora

Custora is a predictive analytics platform for e-commerce marketing…

DrChrono

The essential platform for modern medical practices and patients.

Earbits

Google AdWords for music. Allowing bands and labels to bid for…

FitFu

New projects

Fivestars

Customer loyalty and payments platform for small businesses.

Flotype

Third generation of web apps.

GOAT Group

Platform for the greatest products from the past, present and future.

HelloSign

eSignature software for small and mid-market businesses.

Hotspots

Real-time analytics (acq by TWTR, 2012)

Humble Bundle

Pay what you want for awesome games and other content while giving to…

Hyperink

Ebook publisher.

Inporia

Fashion shopping email list.

Insight Data Science

Turning PhDs & engineers into data scientists & data engineers

Instapainting

Custom-made artwork from artists e-commerce marketplace.

Lanyrd

IMDB of conferences.

Mailgun

Email API service.

Mino Games

Mobile games company

OrderAhead

Order ahead for pickup

Pebble

Watch that helps you get shit done and limit the mayhem of…

Sendoid

High speed peer to peer data transport technology for consumers…

Siasto

Siasto is a collaboration tool designed for SMBs who use Google Apps,…

SimplyListed

Sell your stuff.

SingleStore

The cloud-native, operational database built for speed and scale.

Storyworth

Record your family stories and print them in beautiful keepsake books.

TalkBin

Consumer to business messaging.

Talkable

Online store referrals.

TellFi

Google Voice for business.

Tremendous

How businesses send money to people at scale. Fast, free, global.

TrustEgg

Trust funds.

Tumult

Tumult is building the next generation of apps for web design. Our…

Tutorspree

Online tutoring marketplace.

Upverter

The future of hardware design. A marketplace for hardware engineering…

Userfox

User retention as a service. Drip email

Venuetastic

Venue marketplace.

You Got Listings

All-in-one apartment Marketing Platform for brokerages and landlords.

Zerocater

Zerocater is revolutionizing how companies feed their employees

500Friends

the best loyalty and retention marketing partner for CMOs.

All Screen

Connecting users with engaging video content across the web.…

Answerly

Bitplay

Effortless Video Meetings - Acquired by Jive Software in 2013

Cardpool

Creative Market

Marketplace for graphic design assets

Crocodoc

Embed PDFs, PowerPoints, and other documents into web and mobile apps

Cue

Data Marketplace

Embedly

Etacts

Fabricly

Fithub

Gamador

Infoharmoni

LaunchHear

LaunchHear was a startup attempting to make PR scale in the same way…

Mertado

Mixed Media Labs

Movity

Real estate data visualization. Sold to Trulia Dec…

Newcope

Newslabs

Notifo

Nowmov

Optimizely

The first all-in-one operating system for marketing

OwnLocal

OwnLocal automates marketing for over 129,000 SMBs through 3,300…