Callback Technologies is the world's leading provider of developer components for virtual file storage, access control, monit ... oring, and security. We have over two decades of successful experience in developing system-level drivers used to develop cloud storage solutions, embed virtual file systems on any device, monitor and control disk and operating system activity, and provide unbreakable security. Our engineers have deep knowledge in systems programming, networking, and security and are experts in providing tools that can accomplish the most technical tasks while requiring minimal code. Worldwide leading brands trust our technology as part of their commercial solutions. Companies identified as leaders and visionaries by Gartner's "Magic Quadrant for Content Collaboration Platforms", such as Microsoft, Box, Citrix, Engyte, and Blackberry, OEM our products as part of their cloud file storage offerings. Other Fortune 500 companies, such as Amazon, Intel, HP, and Barracuda, also rely on our products to develop custom file storage and monitoring software. read more