Top 100 YC Companies by

Rank out of all websites globally for traffic in the past 3 months. The rank is calculated using a proprietary methodology that combines a site's estimated average of daily unique visitors and its estimated number of pageviews over the past 3 months. Source: Alexa.

Chart Alexa Rank for All Companies Chart Alexa Rank vs. Other Metrics
Rank Name Batch Category Description Alexa Rank
1 Reddit S05 Entertainment The frontpage of the internet. 15
2 Twitch W07 Entertainment Video game live streaming 26
3 Dropbox S07 Other SaaS Backup and share files in the cloud. 79
4 Scribd S06 Entertainment World's largest online library. 183
5 Airbnb W09 Consumer Book accommodations around the world 234
6 Genius S11 Entertainment Crowd-sourced explanations of song lyrics 272
7 9gag S12 Entertainment Make the world happier. 279
8 Weebly W07 Other SaaS Web site editing platform. Over 40M people have launched their business on Weebly and every month 325M people visit a Weebly-made site, or 50% of the US. 308
9 Humble Bundle W11 Entertainment Pay what you want for awesome games and other content while giving to charity. 675
10 Coinbase S12 Fintech Buy and sell digital currency 🚀 🌑 970
11 1000Memories S10 Consumer Memorial sites. 1,128
12 Coub S16 Entertainment Coub is YouTube for video loops. You can take any video from YouTube, Facebook or upload your own. Trim it to the best part, mix it with other videos or add a soundtrack 1,448
13 Disqus S07 Dev Tools Add comments to your website. 1,469
14 Font Awesome S15 Dev Tools Font Awesome makes it easy to add vector icons and social logos to your website. And Pro gives 1,000+ more icons and SVG framework! 1,510
15 DoorDash S13 Consumer Restaurant delivery. 1,649
16 Padlet W13 Other SaaS Easiest way to put stuff on the Internet 1,689
17 Docker S10 Other SaaS App store for server configurations. 1,823
18 Creative Market W10 Dev Tools Marketplace for ready-to-use design assets from independent creators around the world. Acquired by Autodesk in February 2014. Spun out again in July 2017. 1,972
19 Stripe S09 Fintech Online payments. 2,146
20 Zapier S12 Other SaaS Zapier connects thousands of SaaS apps with customizable workflows via an easy to use editor. 2,346
21 Codecademy S11 Education Codecademy teaches the world the skills they need to get the jobs they want. 2,475
22 Teespring W13 Consumer Retail quality products on-demand. Teespring is a platform that enables anyone to create and sell unique apparel and items that people love, with no cost or risk. 2,617
23 Lever S12 Other SaaS Lever is an Applicant Tracking System + Talent CRM. It effortlessly fits the hiring needs of companies today. 2,647
24 ClearTax S14 Fintech Intuit of India. 3,090
25 Songkick S07 Consumer Songkick is a ticketing vendor and online database of concerts for music enthusiasts. 3,464
26 HackerRank S11 Other SaaS Programmer IQ 3,494
27 Product Hunt S14 Entertainment Hacker News for Products 3,529
28 The Muse W12 Other SaaS The Muse is the ultimate career destination offering exciting job opportunities, expert advice, and a peek behind the scenes into fantastic companies and career paths. 4,240
29 Instacart S12 Consumer Groceries delivered fast. 4,536
30 Heroku W08 Other SaaS Heroku is a multi-language cloud application platform that enables developers to deploy, scale, and manage their applications. 4,908
31 The Athletic S16 Entertainment Subscription sports media. 5,651
32 Wufoo W06 Other SaaS Online form builder. 5,753
33 Razorpay W15 Fintech A modern online payment gateway for India 5,781
34 Zeplin S15 Dev Tools Zeplin is a connected space for product teams where they can share designs, generate specs, assets and code snippets. 6,316
35 SmartAsset S12 Fintech The easiest way to make and understand important personal finance decisions. 6,511
36 Repl.it W18 Dev Tools In 2 seconds, boot up an online programming environment for your favorite language. 7,358
37 Webflow S13 Dev Tools Dynamic website builder. 7,850
38 Clever S12 Education Developing applications for education is a data nightmare. Clever's APIs make building on top of student data easy for developers. 8,144
39 OneSignal S11 Dev Tools OneSignal provides a simple interface to push notifications. OneSignal lets content creators focus on quality user engagement instead of complex implementation. Our goal is to democratize push communication for everyone. 8,201
40 Loom W12 Entertainment Cloud storage for photos and videos (acquired by Dropbox). 9,305
41 GOAT W11 Consumer Sneaker Marketplace 9,446
42 HelloSign W11 Other SaaS The #1 eSignature Software for Small and Mid-Market Businesses. 9,469
43 Strikingly W13 Other SaaS The easiest way to create a beautiful, mobile optimized website. 9,497
44 Gusto W12 Other SaaS Humans aren’t resources. Gusto reimagines payroll, benefits, and HR by automating the most complicated, impersonal business tasks and making them simple and delightful. Get three months free @ https://gusto.com/friends/y-combinator 9,721
45 Bitnami W13 Other SaaS The App Store for Server Software 9,752
46 PushBullet W14 Consumer Push things to your other things. 10,695
47 WorkFlowy S10 Other SaaS WorkFlowy is a better way to manage information. It provides a simple mechanism - zoomable, searchable, shareable bulleted lists - that has startling versatility and power. 11,017
48 MatterPort W12 Entertainment Turn physical objects and environments into 3D models in seconds. 13,725
49 BackerKit S12 Other SaaS BackerKit is crowdfunding software that helps project creators manage their 1000 biggest fans. 14,538
50 Submittable S12 Dev Tools Submittable is the best way for organizations to create, promote, and manage their calls for submissions, applications and other opportunities. 14,862
51 Paystack W16 Fintech Modern payments infrastructure for Africa 14,885
52 YourMechanic W12 Consumer Car Repairs, Reinvented: a. Mechanic comes to your home or work to fix your car b. Save 20-30% by working directly with mechanics instead of shops c. Total transparency and money back guarantee 15,670
53 Chartio S10 Other SaaS Chartio empowers anyone in a company (not just data analysts) to explore and understand their data. We're profitable with almost 800 customers including the NY Times, IBM, Optimizely, EA, Postmates, Doordash. 15,732
54 Caviar S11 Consumer Uber for food. 15,754
55 Quero Education S16 Education Quero is an online marketplace for college programs in Brazil. It helps students search, compare and enroll in programs in over 1200 partner colleges, saving money on tuition. 16,287
56 Ninite W08 Other SaaS Simple third-party app patching and deployment for Windows. 16,678
57 Cambly W14 Entertainment On-demand access to English tutors over video chat. 17,223
58 Platzi W15 Education Live streaming classes on design, marketing and code. Learn from industry leaders. 18,147
59 UpLabs W16 Dev Tools UpLabs is a place where designers & developers come to share, discover and interact with the resources they need to build sites and apps. 18,895
60 Our World in Data W19 Education Open access research and data visualization on global development 19,533
61 OpenAI S16 Dev Tools OpenAI is a non-profit artificial intelligence (AI) research company. 19,875
62 Chatfuel W16 Dev Tools Platform to easily create chatbots to engage with audiences on messengers. 20,414
63 PagerDuty S10 Dev Tools Notify you about server troubles. 20,489
64 Expo S16 Other SaaS Expo brings together the best of web (development speed, fast iteration cycles, easy deploys, and automatic cross-platform support) and the performance and user experience of native apps. Let's talk if you're planning to build a mobile app. 20,544
65 Tech in Asia W15 Entertainment Tech in Asia is a media, events, and jobs platform for Asia’s tech communities. 20,801
66 Vidyard S11 Other SaaS YouTube for business. 22,671
67 RescueTime W08 Other SaaS RescueTime is a web-based time management tool that tracks the activities and duration of a users' computer usage. 22,781
68 Zenefits W13 Other SaaS HR for small businesses: onboarding, payroll and benefits. 23,721
69 Mailgun W11 Dev Tools Email API service. 24,273
70 Front S14 Other SaaS Collaborative Inbox for Companies 24,981
71 Mixpanel S09 Other SaaS Mixpanel is the most advanced analytics platform in the world for mobile & web. 25,031
72 Thunkable W16 Other SaaS Thunkable is a drag and drop tool to build native Android and iOS Apps 25,734
73 ACLU W17 Nonprofit Defender of rights and liberties 25,906
74 Substack W18 Other SaaS The platform for subscription publishing 25,947
75 Octopart W07 Industrial Octopart is a search engine for electronic components 26,985
76 StatusPage S13 Dev Tools The best way to communicate with users around downtime. 27,161
77 Cratejoy S13 Other SaaS Cratejoy is the platform for subscriptions 27,238
78 PadMapper S10 Real Estate Map-based apartment search. 27,923
79 WayUp W15 Consumer Marketplace for college students and recent graduates to find and apply for jobs and internships. 29,053
80 Amplitude W12 Other SaaS Product Analytics 29,658
81 Algolia W14 Dev Tools With 50 data centers in 15 regions, Algolia offers a developer-friendly and enterprise-grade search API. Designed to make every search interaction meaningful and rewarding, Algolia serves billions of queries weekly for more than 5,000 customers. 30,213
82 Optimizely W10 Dev Tools A/B testing. 31,001
83 NewsBlur S12 Entertainment NewsBlur is a personal news reader that brings people together to talk about the world. A new sound of an old instrument. 31,830
84 Segment S11 Other SaaS Segment is the analytics infrastructure that helps collect and organize data so businesses make better decisions. 33,916
85 Fountain S15 Other SaaS The hiring automation platform built for speed and scale. 34,017
86 Cashfree S17 Fintech Next-Gen digital payments provider for India. 35,024
87 ReadMe W15 Dev Tools ReadMe provides every company the ability to quickly and easily create beautiful documentation, and build loyal and productive developer communities. 35,243
88 Poll Everywhere S08 Other SaaS Live audience feedback 37,079
89 Apollo S11 Other SaaS We make Apollo, the leading GraphQL implementation. (We are also the team that built Meteor, the JavaScript framework.) 37,636
90 Streak S11 Other SaaS Streak transforms Gmail into a customizable CRM and process management tool. Our products service thousands of businesses, we’re growing fast, we’re profitable and we’re still a small team. 37,822
91 AirHelp W14 Consumer AirHelp helps air passengers get compensation for delayed, cancelled and overbooked flights. Proud to be hated by the world's leading airlines! 38,348
92 EasyPost S13 Other SaaS Shipping API 38,748
93 Drivezy S16 Consumer India's largest vehicle sharing platform, turning people's vehicles into earning members of the family. 39,028
94 Flutterwave S16 Fintech We help businesses to make and accept payments from anywhere in Africa 40,421
95 Groww W18 Fintech Investing made simple for everyone in India 42,333
96 PlanGrid W12 Real Estate We build mobile applications for the construction industry 43,610
97 Soomgo W17 Consumer Soomgo is Thumbtack for Korea/Asia. We are a marketplace that helps local service providers such as movers, piano teachers, and wedding planners find new customers. 43,883
98 7cups S13 Healthcare 7 Cups is an emotional support service that matches up people that need support with active listeners and therapists. 44,315
99 Lambda School S17 Education We train people to be software engineers for free in exchange for a share of their future income 45,509
100 Joy S16 Consumer Joy is a tool that helps couples plan their wedding from engagement to honeymoon and everything in between. 45,529