But two of the city's hottest technology start - ups, Twitter and Zynga, are threatening to leave San Francisco unless they get a break from a city payroll tax that could, given
the estimated multibillion - dollar valuations of the two companies, amount to tens of millions of dollars.
Not exact matches
GlobalFoundries, which has racked up Empire Zone tax benefits
estimated at up to $ 586 million (in addition to a $ 665 million cash grant from the state and other perks) built a
multibillion - dollar chip fab in Saratoga County that now employs more than 3,000 people.