CNBC unveils the 2018 disruptor list.
These forward-thinking start-ups have not only identified unexploited niches in the market that have the potential to become billion-dollar businesses, a majority of them already are billion-dollar businesses. A startling 33 disruptors this year are unicorns that have already reached or passed the billion-dollar mark.
Read more about the trends that stand out in the 2018 list ranking: Meet the companies
Follow the 50 from CNBC on Twitter: https://twitter.com/CNBCDisruptors