Impact 20
When it comes to buying a used phone on the internet, it’s hard to be sure that you’re getting what you paid for.
READ MORE >Highlighting the startups that are eager to make an impact
For seven years, Fortune has focused on companies working to address some of society’s thorniest problems in its annual Change the World list. And for five years, we have encouraged companies to maximize their social, as well as their financial, returns through our CEO Initiative.
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