Business Instant Messaging
Top Slack Alternatives and Competitors

Mattermost is a flexible, open source messaging platform that enables secure team collaboration.

Flock developed and marketed the only web browser designed to enhance the active online social user’s experience and liberate them from the complexities of managing multiple social networks, web mail, media, news feeds and blogs. With Flock, users could discover, enjoy and share the relationships and content they are passionate about.

Bitrix24 is a collaboration platform launched in 2012. Bitrix24 provides a complete suite of social collaboration, communication and management tools for your team, including CRM, files sharing, project management, calendars, and more. Bitrix24 is available in cloud and on premise.

Hive is the new platform for organizing your company's work. Every team should have a simple way to track who is working on what, and leaders should have a clear view of progress. Hive integrates with over 1,000 popular tools, like Slack, Google Apps, Salesforce, Mailchimp and WordPress. It also supports integrations for files from Box, Google Drive and Dropbox.

Zoho Cliq is a business communication software that helps simplify and streamline your communication with organized conversations and information that's easy to find. Cliq is designed to enable a hybrid work style, where you can log in to work through any device from anywhere. This helps improve your team's overall productivity and, in turn, impacts the performance of your business postively.

Cisco Webex Teams brings everyone and everything together in one simple-to-use, secure space. Moving work forward has never been easier.

Workplace is a communication tool that connects everyone in your company, even if they’re working remotely. Use familiar features like Groups, Chat, Rooms and Live video broadcasting to get people talking and working together.

Confluence is your remote-friendly team workspace where knowledge and collaboration meet. Confluence turns conversations into action built for lasting knowledge so you never lose great ideas or context in a transient notification or chat. From marketing and sales to development and operations, Confluence has solutions for every type of team and project to get your team doing the real work right away.

From direct messages to group conversations, Google Chat helps teams and businesses collaborate fluidly and efficiently from anywhere. Securely connect with anyone you work with, and take group work to the next level with shared chat, files and tasks.

Work together how you want, when you want. Create and collaborate on documents with others and keep everyone organized and up-to-date with shared notebooks.

OpenText™ GroupWise gives you modern email, messaging, calendaring, contact management and scheduling for today’s mobile world. With a dynamic, flexible interface, you can easily meet your organization’s requirements.

Mobility doesn’t have to limit productivity. Cisco Jabber delivers instant messaging, voice and video calls, voice messaging, desktop sharing, conferencing, and presence. Find the right people, see whether and how they’re available, and collaborate more effectively.

Talkspirit is a collaboration platform 100% made in Europe that modernizes your internal communication, simplifies information sharing and streamlines collaboration. The platform brings together all the features your teams need to communicate and work more effectively: chat, video conferencing, secure drive, document sharing and co-editing, internal directory, groups, news feeds, welcome portal, checklists, integrations. With Talkspirit you can simplify information-sharing, energize conversations and facilitate collaborative work among your teams.

Connect every employee with files, data, and experts — anywhere, anytime. With Chatter, connect, engage, and motivate employees to work efficiently regardless of their role or location. Collaborate on sales opportunities, service cases, campaigns, and projects with embedded apps and custom actions.

Conceptboard is the secure solution for digital collaboration. The visual collaboration tool from Germany enables teams to work together on complex projects quickly, intuitively and from anywhere. Conceptboard replaces whiteboards in meeting rooms with an innovative, always available, unlimited digital workspace - GDPR compliant and with the highest data protection standards. Government institutions worldwide rely on Conceptboard and trust in the highest data protection standards and certifications.

Build powerful low-code business solutions to customize work and communication. Communicate, organize and get work done in one place with Citrix Podio. Give your team a tool they’ll love to use. It’s entirely customizable to fit how you run projects most efficiently. Podio transforms your project data into one tool to align all content, conversations, and process into one collaboration point.

Circuit is everything your teams need to communicate in a single app. It’s voice, video, screen share, chat, and file sharing. It’s collaboration made simple. Circuit improves teamwork by combining audio, video and screen-share with persistent messaging and content sharing in a single experience.

Control your communication, manage your data, and have your own collaboration platform to improve team productivity. Lead with the open-source power.

Ryver ("river") provides all of your team communications in one place: chats, posts, and files. Invite as many team members and guests as you need.

Combining secure group messaging, voice and video calls, screen-sharing, and file-sharing – Wire Pro is built for organizations that need to protect their documents, and secure their communications across teams, and with clients and partners.