1. Amazon

there’s a reason cities and towns across america are clamoring for amazon’s second headquarters: jobs. the e-commerce juggernaut increased its u.s. head count sixfold to 180,000 between 2011 and 2016. it has pledged to hire another 100,000 full-time workers by mid-2018. many of its jobs are at fulfillment centers (where workers sometimes coexist alongside robots), but the company is also adding positions in technology, logistics and customer service.