Email

ProtonMail is an email provider/service that respects privacy and puts people (not advertisers) first. ProtonMail is an end-to-end encrypted email service.

Redi-Data, Inc. is a provider of healthcare professional, consumer and business postal and email lists.

Gmail is a free email service provided by Google. As of 2019, it had 1.5 billion active users worldwide. A user typically accesses Gmail in a web browser or the official mobile app. Google also supports the use of email clients via the POP and IMAP protocols.

Enguard provides business class, HIPAA compliant email, telehealth, cloud services, and domain registration to small and medium-sized businesses.

Aspida provides compliant technology solutions for businesses to meet healthcare regulations. Their first offering, Aspida Mail is HIPAA compliant encrypted email solutions in industry. Following Aspida Mail, the company released additional solutions, including Aspida Wall, a managed network firewall, and Aspida Recovery, a data backup & recovery solution.

Paubox is the highest-rated Email Encryption Software product on G2.com

LuxSci offers a HIPAA Compliant email service that is encrypted for your protection.

Hushmail is an encrypted proprietary web-based email service offering PGP-encrypted e-mail and vanity domain service. Hushmail uses OpenPGP standards. If public encryption keys are available to both recipient and sender, Hushmail can convey authenticated, encrypted messages in both directions.

AppRiver, an email and web security company develops SaaS-based anti-spam, hosted exchange, email encryption, and web protection solutions.