Y Combinator

Promise Network Inc. is a technology company that has developed an application platform aimed at providing holistic support to individuals involved in the criminal justice system. Founded in 2017 and headquartered in Oakland, California, Promise offers a range of services designed to reduce recidivism and foster safer communities. The platform includes intake and assessment tools for evaluating risks and needs, ongoing support for communication and service coordination, and supervision features that ensure transparency and accountability. By working with county governments, Promise provides a cost-effective alternative to incarceration for arrestees who cannot afford bail. The tailored plans offered to participants encompass court-mandated conditions and connections to essential services such as drug treatment, housing, mental health support, and job training, ultimately helping individuals achieve their goals and improve long-term outcomes.

The community-building and wellbeing platform for the modern workforce

SproutFi is an application that allows investing in the US stock market and works as a social network.

Popl is the fastest way to share your social media and contact info. You only get one first impression. Make it pop.

DreamWorld is a creative open-world MMO game with the multiplayer density of real-world cities.

Promise Network Inc. is a technology company that has developed an application platform aimed at providing holistic support to individuals involved in the criminal justice system. Founded in 2017 and headquartered in Oakland, California, Promise offers a range of services designed to reduce recidivism and foster safer communities. The platform includes intake and assessment tools for evaluating risks and needs, ongoing support for communication and service coordination, and supervision features that ensure transparency and accountability. By working with county governments, Promise provides a cost-effective alternative to incarceration for arrestees who cannot afford bail. The tailored plans offered to participants encompass court-mandated conditions and connections to essential services such as drug treatment, housing, mental health support, and job training, ultimately helping individuals achieve their goals and improve long-term outcomes.

Popl is the fastest way to share your social media and contact info. You only get one first impression. Make it pop.

An investing social platform where you can talk about investments with friends and make trades on the market. Y Combinator Winter 2021 Batch.

Here is a web-based video communication platform that allows teams and friends to connect in virtual spaces. The platform enables users to engage in video chats, collaborate through writing and drawing, and share images and GIFs, all within a flexible and interactive environment. By facilitating real-time communication and collaboration, Here aims to create a sense of closeness among individuals, regardless of their physical distance. Users can personalize their virtual rooms and move around within them, enhancing the experience of hanging out online. This approach fosters community and teamwork in a digital setting.

MemberStack lets you build members-only websites, dashboards, web apps, and intranets with your favorite web design tools.

Flocknet is building a search engine that allows users to search their Twitter network by job, workplace, location, and more. Founders use Flocknet to hire engineers, and investors use Flocknet to source leads. Flocknet is a CRM and suite of tools for creators, influencers, brands, and marketers to get the most out of their Twitter pages. Flocknet allows users to organize their network with Tags, seek out the most influential people with Filters, and connect with people they find interesting. Today, Flocknet is helping brands, founders, recruiters, investors, founders, and managers track over two million accounts.

Screen and code sharing platform for developers.

Together is a video chat app specifically designed for children to interact with long-distance grandparents. The app offers playful and educational activities to help create an emotional bond despite the distance.

Hyper Online is an avatar-based social network for anime and gaming fans. Users can use Animoji to chat and hang out and meet other people, all without showing their real faces. The more time they spend in the app the more currency they unlock to customize their experience. Hyper Online was founded in 2020 and is based in San Francisco, California.

People Mesh, Inc. develops social people intelligence platforms that accelerate growth for people and teams. The company was founded in 2019 and is based in San Jose, California.

Multiverse, Inc. is an online platform that allows users to create, play, stream, and share tabletop role-playing games. Established in 2019 and based in Cambridge, Massachusetts, the platform is accessible on web, PC, and mobile devices. In addition to gaming, Multiverse provides a marketplace where users can create and sell skins, art, and games, fostering a community of creatives. The company was founded by Sara Alfageeh, Thariq Shihipar, and Hisham Bedri in Boston, Massachusetts, and offers a social gaming experience that enhances user interaction and creativity.

Operator is building a low-code platform that makes it easy to build business applications. With Operator, analysts can build software solutions to common problems and bottlenecks without worrying about managing data or setting up integrations.

BUMP is a social peer-to-peer marketplace for authentic streetwear and sneakers. Shopping has always been a social activity for older generations used to go to the mall sharing recommendations, opinions, and just generally having fun with friends. Online shopping killed this and they're bringing it back for Gen Z. On BUMP users can build up their public profiles, follow & message anyone on the platform, and even create & share their own group chats. This social experience means kids can hang out, build their online identity which in turn drives transactions. Founded in 2016 and based in London, They're already backed by leading names in venture capital including Kleiner Perkins, e.ventures, and Y Combinator.

Comradery is a customizable platform that’s built from the ground up to help communities thrive.

Allo connects neighboring friends and families to make exchanging favors simple. Allo aims to strengthen local networks of friends, families, and trusted neighbors by giving them a better way to respond to each other’s needs. With Allo, asking for a favor from a neighbor, friend, or parent of your child’s friend is no longer awkward and connecting with the right group to find the social and practical support we need is simpler.

Sunsama is the World's Time Network. Share your time with colleagues, mentors, friends and your professional network without worrying about scheduling.

Names & Faces offers a visual indexing platform that assists organizations in creating efficient and visually appealing directories of their employees. This solution addresses the challenges of personnel tracking in growing companies by allowing users to filter employees by region or function. The platform integrates seamlessly with existing data systems, ensuring that employee information is automatically updated. By facilitating easy access to employee profiles, Names & Faces helps employees recognize one another, fostering a sense of community and encouraging real-life interactions within the organization. The solution is designed to enhance internal connectivity without introducing another social network or communication tool.

Playbook is a social network that puts the world's students in touch. It is comprised of a community of college students (and some recent grads) around the world who want to get offline and hang out in person. Originally built in a dorm room as a single Excel spreadsheet four years ago, Playbook today is a community of students from over 220 universities using the platform in over 125 countries. Playbook is built in hopes of creating a community where it’s okay to reach out, meet new people, and assume best intentions with new friends while also keeping in touch with old ones.

BUMP is a social peer-to-peer marketplace for authentic streetwear and sneakers. Shopping has always been a social activity for older generations used to go to the mall sharing recommendations, opinions, and just generally having fun with friends. Online shopping killed this and they're bringing it back for Gen Z. On BUMP users can build up their public profiles, follow & message anyone on the platform, and even create & share their own group chats. This social experience means kids can hang out, build their online identity which in turn drives transactions. Founded in 2016 and based in London, They're already backed by leading names in venture capital including Kleiner Perkins, e.ventures, and Y Combinator.

Promise Network Inc. is a technology company that has developed an application platform aimed at providing holistic support to individuals involved in the criminal justice system. Founded in 2017 and headquartered in Oakland, California, Promise offers a range of services designed to reduce recidivism and foster safer communities. The platform includes intake and assessment tools for evaluating risks and needs, ongoing support for communication and service coordination, and supervision features that ensure transparency and accountability. By working with county governments, Promise provides a cost-effective alternative to incarceration for arrestees who cannot afford bail. The tailored plans offered to participants encompass court-mandated conditions and connections to essential services such as drug treatment, housing, mental health support, and job training, ultimately helping individuals achieve their goals and improve long-term outcomes.

Fam is the best way to socialize on your phone in a way that's most similar to interacting in real life. We’re a social network that helps you connect with friends and new people through live video chat. We believe that the way people socially interact on their phones is fundamentally broken, and causing widespread anxiety, insecurity, and loneliness - and we have the foundation to solve that for an entire generation.

Storyboard helps world's top brands, creative agencies and influencers connect with their communities on Instagram and Snapchat.

FriendSpot is a group messaging app that helps you coordinate with your friends to meet up in the real world.

A platform for online communities to submit links, create content, and have discussions about whatever topic that interests them

YesGraph can boost your company's growth with high-performance invite and referral flows that leverage social graph analysis and an optimal user interface to acquire the best new users.

Index Group operates an online platform that analyzes internal and external relationships within organizations by tracking email communication patterns. By integrating public data on individuals with private relationship information, the platform reveals the connections among employees and quantifies the strength of these relationships based on email interaction frequency. Supporting various email services, including Gmail and any server compatible with the IMAP protocol, Index Group aims to facilitate warm introductions by identifying mutual contacts. The company is based in Mountain View, California.

Protonet offers a cloud-based platform designed for small and medium-sized enterprises, focusing on social project management and collaboration. The platform integrates communication, file sharing, and project management tasks, enabling teams to work efficiently in a unified environment. By providing a comprehensive IT infrastructure tailored for SMEs, Protonet aims to enhance productivity and streamline workflows.

Sywork is a live video platform created for illustrators and digital artists.

A platform for online communities to submit links, create content, and have discussions about whatever topic that interests them

Naytev optimizes how content is shared from websites to social media, creating a 30% bump in referral traffic. They use machine learning to surface and discover effective messages in real time, and prioritize those as users share.

Weave is a mobile-based professional networking application to arrange meetings and friendly discussions. It enables professionals to log into the application through their LinkedIn profiles, and the app then presents them with a stream of nearby professionals who are presumably open to face-to-face meetings and whom they can swipe “yes” or “no” to meet.

Next Generation Home Shopping Network

Amicus empowers cause-driven organizations to leverage the social networks of their supporters, raise more money, attract more members, and win more votes.

Referly is an online referral system designed for social networks that enables users to share links to products and services while earning rewards based on their friends' actions. By tracking shared links, Referly allows individuals to cultivate a reputation as knowledgeable sources for their favorite items, incentivizing them to promote products they value. The platform effectively combines social sharing with a rewards mechanism, encouraging users to engage with their networks and generate purchases through their recommendations.

NewsBlur is a personal news reader that brings people together to talk about the world.

Circular offers an infinitely scrolling feed of content based on people you follow and topics that interest you.

Diaspora is a community-run distributed social network. It was launched by four students at NYU's Courant Institute. Currently, Diaspora is supported and backed by the Free Software Support Network and the Software Freedom Law Center.

Socialcam is a mobile video application available for both iPhone and Android devices. It enables users to capture, edit, and share high-quality videos, making it a convenient platform for documenting and sharing life's moments with friends and family. The app emphasizes ease of use, allowing users to quickly create and view videos online. Socialcam aims to enhance social interactions by providing a fun and engaging way to communicate through video content.

Ark.com, Inc. is a San Francisco-based company that offers a search engine service focused on helping users find people. Founded in 2010, the platform enables individuals to reconnect with old classmates, establish new business contacts, and locate friends through various search filters, including location, employer, schools, and interests. By streamlining the process of discovering information about emails, contacts, and social networks, Ark provides users with a convenient and efficient way to access a wealth of information about individuals.

FamilyLeaf is a private place to share your life with your family. You create a private page where your family can easily share photos, share life updates, store contact information, and post messages. Our mission is to bring families around the world closer together. Family is the most irreplaceable but overlooked social network; we want to help you share the little things that build a lifetime of love!

Post.fm offers social email service.

Rapportive shows you everything about your contacts right inside your inbox. You can immediately see what people look like, where they're based, and what they do. You can establish rapport by mentioning shared interests. You can grow your network by connecting on LinkedIn, Twitter, Facebook and more. And you can record thoughts for later by leaving notes.

The Fridge is a platform for lightweight single serving social networks for the functionality of Facebook without being on Facebook. The Fridge makes private conversation, media, and event sharing dead simple. The Fridge is like Tumblr for social networks. Anyone can easily create shared spaces, invite their friends and socialize/share photos, videos, music, and more. The Fridge reinvents how groups interact online allowing users to cut through the clutter of their social graph and create lightweight targeted spaces for personal and private relationships, special interest groups or clubs, or any temporary network around events, gatherings or nights out on the town...

Tweetflow provides platform to build social networking site. The website aid in crowd sourcing and offers various built-in analytics for brand analysis such as language processing technology, automatic identification of questions, and tweets of praise and complaint.

DailyBooth lets users follow their friends and update them in real-time through the use of pictures and status updates.

Nambii is an online dating service with iPhone applications that allow users to send and receive flirts with people around them.

thesixtyone is a music discovery platform designed to connect independent artists with fans through a community-driven approach. Users can sign up to explore a wide range of indie music, voting for their favorite tracks using a limited number of "hearts" each day. As songs gain popularity from these votes, users earn reputation points and unlock various community features, including achievement badges for engaging with diverse genres or reaching listening milestones. The platform allows for fully streamable tracks, which can be organized into tag-based playlists. Additionally, thesixtyone incorporates an innovative navigation system that facilitates seamless audio playback across different pages, enhancing the overall listening experience.

People and Pages is a service similar to Google Groups, allowing group organizers to manage email lists and publish to the web in one place. Although the screenshots show that it's part WYSIWYG website creation tool as well, making it competitive with Google Sites, [Weebly](http://www.crunchbase.com/organization/weebly), and others. As of August 2008 the site is yet to launch.

Team Apart is a real-time online group collaboration tool.

JustSpotted is a celebrity-tracking tool that aggregates and organizes real-time information about celebrities from various social media platforms, including Twitter, Facebook, and Foursquare. Originally known as Scoopler, the service has evolved to focus specifically on celebrity sightings, providing fans with a way to see what their favorite stars are doing at any given moment. JustSpotted collects data from users who report spontaneous encounters with celebrities, thereby enhancing the platform's offerings with real-life sightings. By mapping these occurrences, JustSpotted enables users to easily access and enjoy a curated collection of celebrity activities, transforming the way fans engage with celebrity culture in the age of social media. The service was launched in October 2010 and was developed by AJ Asver, Dilan Jarawardane, and Benjamin Tauber.

Slinkset is a white label social news platform that allows anyone to start a social news site and integrate it into their own website.

SocialBrowse is a Firefox extension for sharing links. It has been described as "a Twitter for links".

Insoshi is a social networking platform.

Deluux aims to become distributed Facebook, or inverted Ning, by relocating the center of people's online identities to their websites, which exist outside of any one social network. The service will facilitate the distribution of personalized content around the web and help drive traffic to websites. It has yet to launch.

Chatterous is a communications service that aims to allow groups of friends to stay in contact with each other synchronously through any communications channel. Whether a group member communicates via email services like GMail, their IM accounts, or micro-blogging services like [Twitter](http://www.crunchbase.com/organization/twitter), all communications are aggregated at one level for the group.

SocialPicks provides individual investors with a trusted online investing community where they can invest smarter together.

Founded in October 2006, Justin.tv is an online community that enables users to create, share, and broadcast live videos. The platform allows individuals to stream events, classes, and gatherings to audiences in over 250 countries, facilitating real-time communication among viewers. With a robust infrastructure, Justin.tv supports over 428,000 channels and attracts more than 41 million unique visitors each month, with users watching over 300 million videos monthly. The platform is engineered to handle significant traffic by dynamically adjusting to demand, ensuring seamless streaming experiences. Headquartered in San Francisco, Justin.tv was developed by a team of graduates from MIT and Yale, and it is backed by notable investors such as Y Combinator and Draper Associates.

Socialmoth is a community to post your thoughts anonymously. You can view postings (mostly gossip and secrets) from the whole community as well as get updates for when someone in your group of friends makes a post. The vast majority of their members appear to be women, with over 600 posts being made per day. These guys will also be taking a new spin on their idea, launching Disenchat.com, a place to post anonymously about your workplace. The system will verify your organization by email address (like Facebook) and let you start riffing. Outsiders will be able to see the existence of the forum and volume of posting, but not the specific comments.

A “fashion related community”.

A service that enables its users to meet and chat when they visit the same websites.

A platform for online communities to submit links, create content, and have discussions about whatever topic that interests them