The Top 20 Cloud Security Vendors Of 2011

What’s one of the biggest hindrances slowing the migration to cloud computing? Concerns over security, that’s what. Companies want to know where their data is, who has access to it and that it’s protected.

These 20 companies target three key areas for cloud security: security in the cloud, security for the cloud and security from the cloud. Whether it’s a managed suite of security services or policy management and Web filtering, these companies guarantee nothing can get in or out unless it’s supposed to. From small startups to security stalwarts, this list highlights innovators and mavericks in the cloud security space.

Also, keep an eye out for the top 20 cloud infrastructure, software and apps, storage and platform vendors.