https://www.proofpoint.com/us/newsroom/press-releases/proofpoint-signs-new-corporate-headquarters-lease-sunnyvale-california
Proofpoint Signs New Corporate Headquarters Lease in Sunnyvale, California | Proofpoint US
Nov 7, 2018 - Proofpoint today announced it has signed an 11-year corporate headquarters lease in Sunnyvale, CA.
new corporate headquartersproofpointsignsleasesunnyvale