9. Proofpoint Has Made Five Acquisitions In Recent Years

The company has expanded aggressively beyond email security and into adjacent fields over the past three-and-a-half years through a series of acquisitions. Proofpoint kicked things off in November 2017 with its $60 million purchase of browser isolation offerings vendor Weblife.io, extending the company’s advanced threat protection capabilities into personal email.

Then in February 2018, the company bought Wombat Security Technologies for $225 million to fuse its own advanced threat protection capabilities with Wombat’s phishing simulation and cybersecurity awareness and training. In May 2019, Proofpoint purchased Meta Networks for $120 million to help customers better protect people, applications, and data as they move beyond the traditional perimeter.

Six months later, Proofpoint bought insider threat management platform provider ObserveIT for $225 million to better protect data across email, cloud, and the endpoint. And in February 2021, Proofpoint purchase data loss protection MSSP InteliSecure for $62.5 million to help customers protect critical data in diverse environments.