article_snippet: Uber, which is valued at around $41billion (compared to the $3.5 billion it was valued at when Callinicos joined the firm in 2013), is now available in more than 53 countries and 200 cities worldwide . '
article_snippet: Uber, which is valued at around $41billion (compared to the  $3.5 billion it was valued at when Callinicos joined the firm), is now  available in  more than 53 countries and 200 cities worldwide.