Uber, which is under pressure to clean up its act in the city, could have to wait some time before it is granted a new licence, the last of which expired at the end of September.
TfL has a number of concerns about Uber, including its approach to reporting serious criminal offences, how drivers' medical certificates are obtained, how criminal record checks are carried out, and its use of technology which allegedly helps it to evade law enforcement officials. "Further steps in this process will take place over the coming weeks", a spokesperson said.
The chief executive of controversial ride-hailing app Uber has arrived in London for crunch talks with Transport for London, which refused to renew the company's licence to operate in the capital.
Within days of the decision, more than half a million people had signed a petition calling for the reinstatement of Uber's licence to operate in London, where it has 3.5 million registered users.
Ever since Travis Kalanick was ousted as the CEO of Uber, the company has lurched from one trouble to another, and new CEO Dara Khosrowshahi has his hands full.
Dara Khosrowshahi met with Transport for London's Commissioner Mike Brown.
In addition to that, Khosrowshahi is also in the midst of a boardroom power battle with former CEO Travis Kalanick, and the latest intrigue in London means that he has landed into a bit of a mess as far as the company's state of affairs is concerned.
Uber's British management has been criticised by London Mayor Sadiq Khan, who is also chairman of TfL.
Uber is facing many challenges in the United Kingdom market.
The meeting will consider proposals to strip early investors of super-voting power and secure a multibillion-dollar investment.
The meeting comes as Mr Khosrowshahi faces pressure in the United States over former Uber boss Travis Kalanick's influence over the company's board.
The app-based taxi firm will not be able to pick up passengers in the city beyond the expiry of its current licence.
Uber's fate in London will be decided by a judge who will rule on the appeal after it is submitted by October 13. London's second-biggest private hire firm, Addison Lee, said last week it was planning to increase its driver numbers in London by up to a quarter.