Compare the Top Encryption Software for Startups as of July 2025

What is Encryption Software for Startups?

Encryption software allows companies to protect and secure data using cryptography to protect valuable files and sensitive data and enhance security. Compare and read user reviews of the best Encryption software for Startups currently available using the table below. This list is updated regularly.

  • 1
    Proton Mail

    Proton Mail

    Proton AG

    Proton Mail is incorporated in Switzerland and all our servers are located in Switzerland. This means all user data is protected by strict Swiss privacy laws. All emails are secured automatically with end-to-end encryption. This means even we cannot decrypt and read your emails. As a result, your encrypted emails cannot be shared with third parties. No personal information is required to create your secure email account. By default, we do not keep any IP logs which can be linked to your anonymous email account. Your privacy comes first. We believe email privacy should be available to all. That's why our code is open source and basic Proton Mail accounts are always free. You can support the project by donating or upgrading to a paid account. Proton Mail can be used on any device without software install. Proton Mail Business allows you to keep your business email address. Send and receive encrypted emails both inside and outside of your organisation.
    Starting Price: $6.99/user/month
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  • 2
    SWISS SECURIUM

    SWISS SECURIUM

    ALPEIN Software SWISS AG

    SWISS SECURIUM is a cloud-based, all-in-one solution designed to provide highly secure collaboration and encrypted communication for businesses. Hosted exclusively in Switzerland, the platform ensures that all data remains encrypted and accessible only to authorized users, adhering to the country's stringent data protection standards. Key features include wiretap-proof voice and video telephony, an encrypted instant messenger supporting multi-user chats and file transfers, a dedicated email service, seamless data exchange capabilities, and a convenient password manager. The platform also offers optional remote desktop access and a video conference tool, all integrated into a user-friendly interface. Administrators benefit from a simple management interface for user administration, access rights, policies, VPN configurations, and two-factor authentication. Designed to meet the needs of small and medium-sized enterprises and larger organizations.
    Starting Price: $188.55 per month
  • 3
    Lavabit

    Lavabit

    Lavabit

    Secure email for the world. Because everyone has the right to communicate privately. Flow is the most secure email solution for traditional email—compatible with most email clients. Volcano—our free, open source mail client—takes full advantage of the Dark Internet Mail Environment. Magma is our open source server for the Dark Internet Mail Environment—perfect if you need to host your own secure email. We're pioneers in encrypted email who believe all people have the right to private and secure communication. By establishing secure, end-to-end encryption standards and technologies, we're revolutionizing how the world communicates and protects its digital privacy.
  • 4
    MsgSafe.io

    MsgSafe.io

    MsgSafe.io

    Instantly create as many email addresses as you need - each associated with their own group of contacts. Share addresses with anyone, but keep your real email address private. Stop telecom companies, governments, and hackers from seeing with whom you communicate. Each virtual mailbox is automatically set up with 4096-bit GPG and S/MIME encryption keys and certificates. All email stored at MsgSafe-io is encrypted. You can manage the encryption profile for each contact you communicate with. Protect your entire family or organization by managing all identities and email addresses with the domain you already own. If you don’t own a domain, you can use our domain registration services to purchase a domain integrated with MsgSafe-io and privacy protection. You don’t trust FaceTime, Skype, Duo, Hangouts and similar services hosted by companies like Apple, Microsoft and Google? Try our secure and private audio and video services. You can invite people to call you from a browser link.
    Starting Price: $5 per month
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