Exostar | 9,449 followers on LinkedIn. Cybersecurity and Secure Collaboration for the Defense Industrial Base. | The Exostar Platform supports exclusive communities within highly regulated industries where organizations securely collaborate, share information, and operate compliantly. Within these communities, we build trust. Over 200,000 companies and agencies and 1,000,000 users in 175 countries trust Exostar to strengthen security, reduce expenditures, raise productivity, and help them achieve their digital transformation initiatives.