The following companies offer professional support services for libsodium and applications using libsodium:

Libsodium-specific services include:

  • Cryptographic and implementation auditing of libsodium usage.

  • Security review of constructions, protocols, and applications using libsodium.

  • Consulting on libsodium usage in applications -- web apps, backends, mobile,

    embedded, kernel, etc.

  • General consulting and review of cryptography inquiries.

  • Implementation security and helping to work toward a vulnerability-free

    codebase.

  • Reverse engineering of complicated binaries.

  • General consulting, advising, mentoring, and development.

Paragon Initiative Enterprises (https://paragonie.com)

Libsodium-specific services include:

  • Library integration, with a focus on web applications (PHP, .NET, Python).

  • Bespoke or standard high-level protocol design and implementation, e.g. Noise.

  • Security audits, for in-house library integrations and/or high-level

    protocols.

  • Custom application development that requires cryptography.

  • Consulting and mentoring services.

(Please submit a pull request if you want your company added to that list)