Top Chat Startups in 2027

Stream powers activity feeds and chat for over 500 million end-users. It's one of the fastest-growing startups located in Boulder, Colorado, and Amsterdam, the Netherlands. Here at Stream, we believe that modern apps should be based on reusable components instead of rebuilding things from scratch. If you're building an app, you can leverage our extremely scalable and polished APIs to add feeds or chat to your application quickly. If you're curious about our product, you can try our chat or feeds API.

Built for organizations that need more control over their communications; it enables collaboration between colleagues, partners, customers, communities, and even platforms without compromises on data ownership, customizations, or integrations. Tens of millions of users in over 150 countries and organizations such as Deutsche Bahn, The US Navy, and Credit Suisse trust Rocket.Chat every day to keep their communications completely private and secure. Rocket.Chat is an enterprise communication hub that offers numerous solutions: Omnichannel Customer Experience, Team Collaboration, and DevOps. The main benefit is to centralize organizational communication and boost productivity by bringing messages, video calls, file sharing, and all team communication into one place. Built-in JavaScript, using the Meteor full-stack framework, the tool offers omnichannel customer engagement through LiveChat widget and integrations with Whatsapp, Twilio, Messenger, SMS, Emails, among others. Team collaboration can be improved by chat messaging, video conferences, audio messages, file sharing, threads, discussion groups, direct or group messages, real-time translation, audit messaging panel, and custom user permissions. DevOps can be accelerated with native integrations offered in Rocket.Chat`s marketplace, real-time LDAP, webhooks, and powerful APIs.

Founded in 2015, Discord is a voice, video and text app that helps friends and communities come together to hang out and explore their interests - from artists and activists, to study groups, sneakerheads, plant parents, and more. With 150 million monthly users across 19 million active communities, called servers, Discord has grown to become one of the most popular communications services in the world. Discord was built without selling ads or user data and instead, offers a premium subscription called Nitro that gives users special perks like higher quality streams and fun customizations.

Varsity Tutors is a live learning platform that connects students and professionals with personalized instruction to achieve any goal. To date, students have accessed more than three million hours of live instruction on the platform. Experts are available to meet in person or through the company’s award-winning online and mobile platforms, which account for the majority of all sessions.

Sleeper's mission is to connect people over sports. We believe the most important aspect of sports is its ability to bring friends and communities together. We do this via multi-player games like fantasy leagues, with messaging at the core of the experience. We're hiring and would love to meet you!

PolyAI is a London-based technology company with a state-of-the-art machine learning platform for creating conversational agents. The PolyAI platform empowers contact centres, allowing them to deliver the next-generation of customer experience at a fraction of the cost paid by their competitors. PolyAI’s conversational AI agents understand users and can hold conversations without getting confused. They are available 24/7 and can easily scale to support new use cases or to speak almost any world language.

At American Well, we believe digital care delivery will transform healthcare. Our mission is to connect and enable providers, insurers, patients, and innovators to deliver greater access to more affordable, higher quality care. We do this by partnering with our clients to deliver video visits over mobile and web. We have doctors, therapists, and specialists on staff to help people get care when and where they need it most.

Botco.ai is a conversational AI platform built for healthcare and life sciences. We help enterprise teams deploy intelligent chat experiences that drive patient engagement, generate leads, and surface insights — all within a HIPAA-compliant infrastructure. We're a lean, remote-first team moving fast on hard problems. Botco.ai empowers businesses from a range of industries to deliver exceptional, trustworthy customer experiences that generate high quality pipeline, increase sales conversions, and accelerate revenue. Recipient of the Arizona Innovation Challenge "Most Outstanding Startup" award, best SaaS platform from the Arizona Commerce Authority (ACA), the TiE50 Award, and others, Botco.ai is transforming the way businesses communicate with their prospects and customers. For more information, visit botco.ai.

Luxlock digitizes the most profitable path to purchase across sales channels. A unified vertical SaaS platform providing luxury brands with the customer data infrastructure, sales software, and global payments to sell smarter and catalyze lifetime customer value.

360Dialog transforms WhatsApp into a high-performance marketing channel with solutions that drive measurable results. By combining data-driven insights with personalized conversations, we help businesses scale engagement, boost conversions, and automate WhatsApp communication seamlessly. Trusted by 1,000+ partners and 40,000+ clients, we’re the first to offer full-funnel analytics for WhatsApp marketing automation. Join our mission—apply to be part of our innovative team below!