If you're looking for a platform that supports secure and scalable collaboration for large teams, Slack is a well-known option. Slack has a wide range of features, including channels for team collaboration, AI-powered tools to automate work, and secure collaboration with outside partners through Slack Connect. It's designed to scale securely to support teams of any size, with features to help improve communication and remote work.
Another great option is Box, a collaboration and content management platform that focuses on advanced security controls and intelligent threat detection. It offers secure collaboration, native e-signatures, and automated workflow, making it a good fit for a variety of business functions like marketing, sales and finance. Box's security and integration abilities also make it a good option for large teams.
For teams that need both security and flexibility, Mattermost offers a secure collaboration platform geared for defense, government and critical infrastructure companies. It includes built-in security operations, out-of-band incident response and AI-accelerated workflows. It's customizable and adaptable, with options for deployment in a variety of environments, so it's a good fit for teams that need high security and control.