Despite recent controversies, Uber continues to drive growth. The mobile car booking service is reportedly on the verge of raising funding that would value the company at $40 billion. The deal has yet to be finalized but T Rowe Price Group is being named as a potential new investor. Fidelity Investments, already an Uber investor is also being touted as a contributor to the latest funding round. If Uber manages to close the deal the company's value will have more than doubled since June. A $35 to $40 billion valuation would park Uber alongside companies such as Salesforce and Delta Airlines. The car service is now active in more than 220 cities worldwide.