More than 750 worker turned out Friday at Sonoma County's largest high-tech employer to mark the start of a new era.

The Fountaingrove Parkway campus in Santa Rosa formerly belonged to Agilent Technologies, but on Friday it became the headquarters of the new Keysight Technologies. Employees watched CEO/President Ron Nersesian unveil the company's new sign and posed with him for company photos. The photo session was followed by tours of the new headquarters and an afternoon celebration at the million-square-foot campus.

Keysight on Friday became an Agilent subsidiary and on Nov. 1 is slated to be its own publicly-traded company.