What is a zero-knowledge encryption?

A security model where data is encrypted and decrypted on the client-side, and the service provider has no access to the encryption keys. This means the provider cannot access the content of the files stored on their servers.

Who uses one?

Small business owners and IT managers choosing business cloud storage (Dropbox vs Box vs Google Drive Business)

What does it cost?

Pricing varies. The cheapest provider in our Top 11 starts around $12/mo. See the cheapest providers ranked.

How do I pick one?

Read the full methodology for our 9.4-point scoring framework, then look at the canonical The 11 Best Cloud Storage Solutions for Business. If you want a slice of the ranking by price, fit, or compliance, jump to: cheapest · highest-rated · fastest onboarding.

Source: Top 11 The 11 Best Cloud Storage Solutions for Business, verified June 8, 2026.