 SegmentSoftware and APIs to collect, clean, and control customer data.team of 550YC top companyAcquired·Data | Data | Acquired |
 GoCardlessWe’re building the world’s bank payment network.team of 900acquiredAcquired·Other | Other | Acquired |
 FirebaseBuild and grow iOS, Android, and Web apps.team of 500acquiredAcquired·Devtools | Devtools | Acquired |
 CodecademyThe leading online learning platform for technical skills.team of 225YC top companyAcquired·Other | Other | Acquired |
 ZeusTech-enabled property manager focused on corporate rentals; Acquired…team of 200acquiredAcquired·Other | Other | Acquired |
 HackerRankChange the world to value skills over pedigreeteam of 300hiringActive·AI, Devtools | AI, Devtools | Active |
 GeniusMusic Intelligenceteam of 101acquiredAcquired·Other | Other | Acquired |
 Citus DataReal-time. Big data. PostgreSQLteam of 45acquired by MicrosoftAcquired·Data, Devtools | Data, Devtools | Acquired |
 ApolloApollo helps engineering teams accelerate deliveryteam of 200hiringActive·Devtools | Devtools | Active |
 OneSignalEngage customers through personalized omni-channel messagingteam of 150hiringActive·Devtools | Devtools | Active |
 QuartzyMarketplace for life science supplies.team of 100hiringActive·Other | Other | Active |
| AAutomaticAutomatic connects your car to the rest of your digital life.team of 51acquiredAcquired·Other | Other | Acquired |
 CaviarUber for food.team of 51acquiredAcquired·Other | Other | Acquired |
 ComposeWe make it easy to run databases.
PostgreSQL, Redis, MongoDB,…team of 51acquiredAcquired·Data, Devtools | Data, Devtools | Acquired |
 RealmBetter data structures = no DB.team of 51acquiredAcquired·Data | Data | Acquired |
 Science ExchangePowering scientific outsourcingteam of 50acquiredAcquired·Other | Other | Acquired |
 MixRankData products for sales, marketing, finance, recruiting, and more.team of 312 programsActive·Other | Other | Active |
 VidyardVideo for business.team of 201Active·Other | Other | Active |
 LeadGeniusLeadGenius is an account-based marketing and lead generation…team of 502 programsActive·AI | AI | Active |
 ClerkyMakes legal paperwork easy for startups and their attorneys.team of 35acquiredAcquired·Other | Other | Acquired |
 StreakStreak transforms Gmail into a powerful CRMteam of 35hiringActive·Other | Other | Active |
 Aisle50Grocery deals.team of 11acquiredAcquired·Other | Other | Acquired |
 GlassMapLocation sharing. Acquired by Groupon in 2013.team of 11acquiredAcquired·Other | Other | Acquired |
 PageleverFacebook analytics. Acquired by Unified in January 2013.team of 11acquiredAcquired·Data | Data | Acquired |
 ParseParse is the easiest way to build apps.team of 11acquiredAcquired·Data, Devtools | Data, Devtools | Acquired |
 Perfect AudienceSelf-service display advertising for SaaS and online retail.team of 11acquiredAcquired·Other | Other | Acquired |
 VideopixieMarketplace for Video Production Services. We help you hire the best…team of 112 programsActive·Other | Other | Active |
 FreshplumAnalytics with actionteam of 8acquiredAcquired·Data | Data | Acquired |
 ImgixThe platform for your visual media.team of 34Active·Devtools | Devtools | Active |
 CryptosealServer key management, VPN as a Service, Privacy VPN. Sold to…acquiredteam of 3Acquired·Devtools | Devtools | Acquired |
 AgileMDPredictive analytics and clinical pathways for hospitalsteam of 19Active·AI | AI | Active |
| CClutchAn easy to integrate library for native iOS applications designed to…acquiredteam of 2Acquired·Devtools | Devtools | Acquired |
| DDebteyeAutomate credit counseling.acquiredteam of 2Acquired·Other | Other | Acquired |
 EmbarkPublic transit apps. Acquired by Apple in 2013.acquiredteam of 2Acquired·Other | Other | Acquired |
 FoboSell to people nearby.acquiredteam of 2Acquired·Other | Other | Acquired |
 Launchpad ToysCreativity at Play. Tablet toys. Acquired by Google, 2015.acquiredteam of 2Acquired·Other | Other | Acquired |
 StypiRealtime collaborative codingacquiredteam of 2Acquired·Other | Other | Acquired |
| TTapEngageTouch-friendly marketing, acquired by Dropboxacquiredteam of 2Acquired·Other | Other | Acquired |
 VerblingLanguage learning through video chat.acquiredteam of 2Acquired·Other | Other | Acquired |
 SiftThe Leader in Digital Trust & SafetyhiringActive·AI | AI | Active |
 QuadQuad is where college students get things done.team of 12Inactive·Other | Other | Inactive |
| KKicksendSend and print photo albums with people you love.
Acquired by Lyftteam of 11Inactive·Other | Other | Inactive |
 OpezYelp for service pros.team of 11Inactive·Other | Other | Inactive |
 PayDragonHyperlinking the real world.team of 11Inactive·Other | Other | Inactive |
 RentoboThe easiest way to find a tenant.
Rentobo is a tool that makes it…team of 11Inactive·AI | AI | Inactive |
| RRidejoyLong-distance carpooling marketplace. Shut down in early 2013.team of 11Inactive·Other | Other | Inactive |
 SnapjoyPhoto library.team of 11Inactive·Other | Other | Inactive |
 LeakyOnline auto and business insurance. (Acquired 2013)2 programsteam of 2Inactive·Other | Other | Inactive |
 PhoneSysThe Phone System for Sales Teams.team of 4Inactive·Devtools | Devtools | Inactive |
 DubjoyDubjoy translates and voice-overs your video to any languageteam of 2Inactive·Other | Other | Inactive |
 EverymeThe #1 private social networkteam of 2Inactive·Other | Other | Inactive |
 Hungry LabsNow part of Snaplayer.team of 2Inactive·Other | Other | Inactive |
 InterstateCreate & Share Product Roadmapsteam of 2Inactive·Other | Other | Inactive |
 MarketBriefGenerate stories from SEC filings.team of 2Inactive·Data | Data | Inactive |
 PicplumA startup in Y Combinator's Summer 2011 batch, based in San Francisco.team of 2Inactive·Other | Other | Inactive |
 VaporIn-video advertising.team of 2Inactive·Other | Other | Inactive |
 ZenboxBrings dozens of SaaS's (Mailchimp, Stripe, Shopify, Salesforce,…team of 2Inactive·Other | Other | Inactive |
 ZigfuLayer above Kinect.team of 2Inactive·Other | Other | Inactive |
 DraftMaking Draft. Super simple version control and collaboration for…Inactive·Other | Other | Inactive |
 ProxinoJavascript proxy.Inactive·Devtools | Devtools | Inactive |
Startupsby Glyph