Varonis Systems Inc. is expanding its worldwide headquarters at a Jamestown property at 1250 Broadway, between W. 31st and W. 32nd streets. The class-A, mixed-use property overlooking Herald and Greeley squares has 39 floors with more than 770,000 square feet.

As a software and services provider, Varonis helps organizations manage and protect their unstructured data. The tech group’s existing lease was for 15,356 square feet on the 31st floor. Under a new 10-year lease, it added the 28th and 29th floors, for a total of 46,068 square feet.