Trillian - Trillian is a decentralized and federated instant messaging platform that lets your whole company send private and group messages, keep tabs on what co-workers are doing, share files, and much more.

FastMail - Email, calendars, and contacts to highest standards of security, privacy and reliability.

TigerText Essentials - Empower care teams to communicate efficiently with TigerText Essentials, a secure, HIPAA-compliant communications and messaging solution. Communicate securely from your smartphone or desktop!

Zoho Mail - Zoho Mail is a secure, encrypted, and enterprise-ready email solution, a suite of apps tailor-made for your organization's needs.

Redox - Redox provides an EHR integration platform for digital health solutions.

Rackspace Email Hosting - Rackspace Email Hosting is a platform that provides business with web-hosted email services.