Community Startups funded by Y Combinator (YC) 2025

Twitch is the world’s leading video platform and community for gamers. More than 100 million gamers gather every month to broadcast, watch and chat about gaming. Twitch’s video platform is the backbone of live and on-demand distribution for leading video game broadcasters including casual gamers, pro players, tournaments, leagues, developers and gaming media organizations. Twitch is leading a revolution in the gaming community, working to create a participatory experience that transcends gameplay. Learn more at http://twitch.tv.

Founded by Steve Huffman and Alexis Ohanian in 2005, Reddit is an online community where users submit, vote, and comment on content, news, and discussions. Nicknamed "the front page of the internet,"​ Reddit is one of the top ten sites in the United States (source: Alexa), with hundreds of millions of users each month on desktop, mobile web, and our official Android/iOS apps. Interested in joining our growing team? Check out about.reddit.com/careers

dev/color is a non-profit organization that aims to maximize the impact of Black software engineers. Our mission is to provide Black engineers with the connections and skills needed to start and stay in the industry, and advance into leadership roles. We’re a community for software engineers, by software engineers. We work with members throughout their careers, from college to industry, through mentorship, goal setting and events.

Myria is a private community and concierge for off-market goods & services — the things you can't Google. Ultra-high net worth individuals spend $390 billion per year ($1.3 million each) on lifestyle, but they still struggle to find everything they want. Why? Because the best of any category — homes, boats, restaurant reservations — the best stuff is never listed online. Likewise, the best people don’t need the internet to find a new client or job. The best is always off-market. Myria is the Off-Marketplace. Myria helps off-market sellers reach the nicest and wealthiest buyers. In turn, we help the world’s most successful people access the best of everything, give back, and get the most out of life. If it’s off-market, it’s on Myria!

The Recurse Center is a self-directed, educational retreat for people who want to get better at programming, whether they've been programming for three decades or three months. The retreat is free for all participants because we run an integrated recruiting agency and provide (optional) personalized recruiting services to anyone in our community considering a new job.

Women Who Code (WWCode) is an international nonprofit dedicated to empowering diverse women to excel in technology careers. WWCode is building a world where diverse women and historically excluded people thrive at every level. The organization has executed more than 15,000 free events around the world, garnered a membership exceeding 320,000, and delivers programming to members in 147 countries. Women Who Code Values Focus on the mission, Design for inclusion, Advocate for change, Journey forward WHAT WE DO: -Advance diverse women in their careers every step of the way -Provide a community of 320,000 that has become a movement in technology leadership -Build Global Leaders in Tech, effectively changing the industry -Offer low to no-barrier-to-entry programs, events, scholarships, and more for women to build tech and leadership skills -Job board (ask about a YC discount) Learn more at: www.womenwhocode.com or contact us at contact@womenwhocode.com

Withfriends makes it easy for any small business to offer memberships, so that your community can subscribe to support your business. Simply connect us to your online store or point-of-sale, and we'll offer memberships to your customers during checkout. We've found 1 in 20 customers will choose to become members, bringing your business an additional 45% in revenue.

Leaders In Tech Fellows is a 10-month program limited to 72 hand-picked founders nominated by the tech community for their commitment to building high-performing and culturally-healthy organizations. The Fellows program is based on the legendary Interpersonal Dynamics ("Touchy Feely") class at the Stanford Graduate School of Business and is led by Carole Robin former faculty director and matriarch of that program. 146 Fellows alumni now run companies valued at over $50B that employ thousands of people.

Trata is an AI-powered research desk for hedge funds. We use agents to interview hedge fund analysts, write investment research, and distribute this through a subscription.

Meet qualified leads in person by automating conference production with Venu AI. Host a conference and meet 100 qualified sales leads in person every 3 months fully automated with Venu AI.

Frontpage is building a community for 100M Indian traders and investors. Millions of new traders and investors are looking to participate in financial markets. FrontPage harnesses power of community where traders and investors can connect with each other, share their ideas, and learn from each other.

Zidisha is the world's first direct peer-to-peer lending service to bridge the international wealth divide, allowing individuals worldwide to lend to and communicate with borrowers in developing countries without local intermediaries. The direct connection creates better transparency, more profit for the entrepreneurs and lenders, and greater wealth creation for the world's poorest communities. We've been featured in numerous press and media for our groundbreaking work in using internet and mobile phone technologies to connect entrepreneurs in some of the world's most isolated and impoverished places with the international peer-to-peer lending market.

Cabal helps founders get more out of their investors and advisors. We do this by providing a private workspace for founders to send asks & updates, track contributions, and get warm intros to prospects and candidates.

KubeSail is the home hosting company. We make it easy to take back your privacy, fix the internet, and de-google all at once: host apps at home! Plug in a spare PC or buy our custom home-hosting hardware https://pibox.io, install apps like PhotoPrism, NocoDB, and Minecraft, and enjoy complete ownership of your data. We build everything you need to make hosting at home viable and fun. For companies, we make it easy to deploy software on-demand for your customers (either in the cloud, or by physically shipping them pre-configured hardware) to your users. Companies like ChatWoot use KubeSail Platform to deploy instances of their software dynamically, the moment a user pays.

Plura (formerly Bloom Community) is a YCombinator backed startup based in Oakland, CA on a mission to use software to bring people together. Plura is a social and dating community that helps you meet new friends and partners organically through shared events and experiences. We partner with local event producers to help you connect and chat with other attendees before and after events. And, with a strong consent culture and referral-based community, we're the safest place to meet new partners and friends. The team is led by Luna Ray. Luna spent 5 years at Facebook, most recently leading viral user growth for Instagram from 700M to past a billion users in two years.

Users perform millions of calls and send hundreds of millions of messages every month. The topics vary from language practicing to mental issues to personal life conversations.

🚀 Lumina💧 (YC W22) is a fast growing job platform in Southeast Asia with 1.5 million workers, helping 30k companies recruit and optimize at scale. 🤖 We are now expanding globally with Lumibot, a bespoke AI+human-powered automation service. We help companies automate mundane, repetitive processes with AI and human-in-the-loop catering for various use cases in data ops and complex workflows. This allows your business to focus on your core and grow faster, better and cheaper. 👌Our AI-powered automation start with USD 13/hour, supplemented with human-in-the-loop at USD 2-6/hour. Our services are managed based on SLAs by dedicated service managers under a prepaid credit system without arduous contracts for optimum flexibility. No minimum commitment with fully-refundable deposit from as low as USD 500^. 🛠️ We currently support the following use cases: 1) operations support 2) revenue operations support 3) web and social media management 4) email management 5) content moderation 6) AI training and verification 7) AI text humanization 8) custom process automation ... with more to come ... 👥️️ Lumibot (by Lumina) is backed by Y-Combinator, Monk's Hill Ventures, Alpha JWC, Goodwater Capital, SWC Global and January Capital. More information about us: * 💬 WA: https://wa.me/message/SEMGBRM22MDYK1 * 📅 CAL: https://usemotion.com/meet/aswin-andrison/global * 🌐 WEB: https://www.lumibot.com ^ Reach out to us on special deals ONLY for YC companies!

The Juggernaut is a NY-based consumer subscription company and community for the South Asia-curious. Targeted subscription media is a valuable bet: Black Entertainment Television (BET) sold to Viacom for $2.3b in 2000 and Liberty Media valued Univision at $14b in 2017. The U.S. South Asia diaspora alone has over $1 trillion of spending power and is the fastest growing demographic in the U.S., yet is underserved. We're backed by some incredible investors, including Precursor Ventures (also in The Athletic, Superhuman), Kevin Lin (co-founder, Twitch), Adam Hansmann (co-founder, The Athletic), and Balaji Srinivasan (ex-Coinbase CTO, ex-GP a16z).

A web app that offers live online courses in programming, design, data, online marketing and more. Our courses are nearly as affordable as online Moocs (~$40 a month) and as effective as Bootcamps. We achieve this by running 100 person live classes with one expert professor and one mentor per 15 students. Every class, students need to turn in assignments that are corrected by their mentors and at the end of the course they need to turn in and approve a final project. We also help our selected students with careers services such as mockup interviews, Linkedin enhancement, and more. All of this creates a level of accountability that allows us to achieve really low churn levels (<9%). Our career tracks last between 9-11 months and we give our selected students their money back in case they don't get a job 6 months after they are done with the course.

https://www.flow.club/ is a virtual co-working space where people work in high-intensity sprints designed to double their productivity. We envision a world where... - anyone can access deep, focused flow anytime, anywhere - working independently or remotely doesn’t have to feel like you're on your own Our mission is to build the software that powers the most inspiring and productive work environment for knowledge workers. Our members love Flow Club (https://www.flow.club/wall-of-love). We’re growing quickly, just presented at Y Combinator's Summer 2021 Demo Day, raised $5M, and hiring our founding team. We are backed by Worklife Ventures, a firm investing in companies re-designing the way work gets done in the future, and 100 more of the world's best investors and operators. Among our investors are Paul Graham and the founders of iconic companies like Dropbox, Mercury, Quora, Outschool, and Sendbird. Finally, we are inspired by our members and hosts who we see everyday working out of Flow Club building the most incredible things. They remind us great things are built incrementally, one step at a time.

Stipop is a monetization platform for character creators, or simply put, Patreon for character creators. We help independent character IP owners generate revenue directly from their audience with fun, dynamic features. Previously, Stipop was a sticker platform with 5,000 sticker creators, and 250K stickers and provided stickers to Canva, Teams, Google, and Adobe. We also provide sticker API and SDK to help chat apps improve revenue and user engagement. Stipop has been invested by Snap (through Yellow Accelerator), YC, Translink Investment, Strong Ventures, Next Ventures, and more.

Shimmer provides ADHD coaching to people with ADHD or executive function challenges. Shimmer was born from a group of ADHD coaches, psychiatrists, doctors, and engineers to create a personalized, action-oriented playground for you and your coach to explore. We're not another list, calendar, or app: we're real human interactions paired with expert strategies, so that you can make real changes in your life. Come check us out! Our ADHD coaches partner with you to co-design a plan to achieve your goals. You'll experiment with strategies on a weekly basis to implement a routine fit specifically for you. Our program has been designed off science-backed methods in partnership with NYU, UC Berkeley, and UCSF. Get your free ADHD Mastery Score > https://www.shimmer.care/assessment

Café makes it easy to discover people, meet in-person, and organize internal events. Boost connection, engagement, and attendance — all in one place.

Taro is a community of 150k+ software engineers looking to grow their careers. High-growth tech companies leverage the Taro platform to hire engineers who can grow the company. Taro's education platform offers online courses and discussions with leaders at top tech companies. These resources attract many top engineers seeking their next career move. Taro supports the hiring process at startups through sourcing and feedback on engineers. If you're looking to expand your engineering team quickly, without compromising on quality, book time here: https://www.jointaro.com/enterprise/

Siglo is a wireless ISP for communities in urban Latin America offering a faster, better, and easy-to-pay service.

We provide premium, personalized courses for college entrance exams (like Chile’s PAES and Brazil’s ENEM) combining engaging video lessons, live tutoring, AI-powered study plans, and downloadable resources. Today we serve over 25,000 students annually across Chile, Brazil, Argentina, and Colombia, with a 90% YoY growth and industry-leading margins.

SolStar makes it possible for anyone to use crypto—even your grandpa! All you need to get started is a credit card. Skip the confusing steps above and dive in right away with a secure, approachable tool that makes crypto fun. You can add SolStar Tip Bot to your Discord, check your balance, and send a tip to a friend all within a few minutes.

Nearly 7 billion hours are spent on porn every year. Relay provides a modern solution to one of the most widespread yet hidden epidemics of our time: pornography. Despite being one of the biggest drains on focus, relationships, and mental health, it remains one of the most silent and stigmatized problems in society. We are tackling this head-on. Relay helps people break free through private, anonymous groups that provide accountability and community. Members join a small, confidential team that replaces isolation with connection, offering shame-free accountability, evidence-based tools, and daily reflection. Our mission goes beyond quitting porn. Relay exists to help people heal the isolation and pain that drive destructive habits—so they can rebuild intimacy, reclaim focus, and live with greater connection, purpose, and wholeness.

1000memories is the new shoebox for your old photos. 1000Memories allows people to organize, share, and discover old photos and memories and set up family trees.

We're building the best chat app on earth. Beeper connects to 15+ different chat networks. Unified search, advanced filtering and more. Available on Desktop, Android, iPhone and iPad. The idea is simple: messaging today is painfully fragmented. We're going to fix that. Every time we communicate there is friction lurking under the surface. E.g. Which app did I message her on? Where's that photo gone? Why can't I join an iMessage group from my Android? Our mission is to eliminate that friction and boost the efficiency of the entire human race.

Our mission is to help creators and entrepreneurs grow online. We do this by helping them build a beautiful website and online store with no coding or design background.

The biggest social network in the world for TikTok celebs. One of the first 5 companies in the US to get the TikTok API. Launched over 400 companies on TikTok in under a year. Work with Ridge, Hopper, and more. Acquired in 2021.

We love the internet, and the colorful characters and interesting conversations that make up its diverse communities. Disqus exists to make better communities and an even better web. Today, our product ecosystem includes our established comment network (over 4 million websites that cover pretty much any topic imaginable), a growing advertising network, and our owned and operated platform. Originally founded in 2007 by CEO Daniel Ha and CTO Jason Yan, we’re changing the way people get into discussions about the things they love -- or are just curious about.

Parenthoods is a community platform for local parents to meet up, share advice, and help each other conquer one of life’s most craziest rides…parenthood.

Product Hunt surfaces the best new products, every day. It's a place for product-loving enthusiasts to share and geek out about the latest mobile apps, websites, hardware projects, and tech creations. Community members can submit, browse, vote and comment on daily submissions of products and collections of products. They also get the opportunity to interact directly with product creators, investors, journalists, as well as, an active community of people who are passionate about products.

Heysan was a free mobile messaging and community based in San Francisco, California. Initially Heysan provided free messaging between phones and computers, bridging IM with SMS. The service expanded into launching a mobile community and has over 1 million users doing tens of million of monthly messages. In the summer of 2007 Heysan raised a seed round from Khosla Ventures and Atomico, the venture funds of Vinod Khosla and Niklas Zennstrom. Heysan was acquired by Good Technology in May 2009.

Deeply engage groups of 4 to 400,000 through 1-on-1 video chats. Match back to back for round-robin chats or use typed rooms for enhanced pairings. Play games, take pictures, and more!

HOAi (acquired by Vantaca in Fall 2024) is a fast-growing startup revolutionizing the community association management industry. Our AI workforce platform integrates machine learning technology to streamline labor-heavy processes, eliminating inefficiencies and driving scalability. With rapid growth in the AI space, we are pushing boundaries to redefine industry standards.