Amazon has revolutionized online shopping more than any other company and is basically changing the world right now. They have put their biggest competitor, Walmart, almost out of business and have changed the way we use technology. If you need anything more times than not amazon will have it. They now offer 2 hour free delivery in select cities in most countries with Amazon Prime Now which delivers things to you right when you need them. 

They are currently working on selling tickets like to football games and concerts by providing the cheapest prices for people. 

In the technology sector you could say Apple has done some serious damage to what we think when we hear cell phones now but I'd say Amazon has come out on top because they aren't fixated on just one thing like applications and services. They are doing everything and doing it better than everyone else which has put them on top of every other company.