US employees: 12,810
Last year's worldwide job growth: 5 percent
Most common job/Avg. salary for job: Pharmaceutical sales specialist/$91,837
Westborough is home to London-based AstraZeneca's largest US operation. The pharmaceutical manufacturer ranks 83d on Fortune's list. The Massachusetts office employs 650 people, who benefit from quirky job perks such as onsite haircuts, video rentals, and massages. Governor Deval Patrick (pictured, center left) was on hand in May when the company broke ground on the expansion of its research and development facility.