Uber is struggling to generate money from its own advertising network and, in some cases, its own in-houses, a report from PricewaterhouseCoopers (PwC) said Thursday.
The report said the ridesharing company’s advertising revenue was expected to grow 7.2 percent in the second quarter, a sign of the growth in the global advertising market.
The company has spent about $400 million on advertising in the past five years, the report said.
PwG, a financial research firm, said Uber’s revenue from in-homes, which includes rental cars and car rental companies, was forecast to grow about 5.5 percent in 2016.
That was up from 4.3 percent in 2015, according to PwG.
Uber has had to spend billions of dollars building and maintaining its own cars in-custody facilities.
The in-hire advertising network is a different kind of revenue source, with Uber only charging drivers for rides when they request a ride, according the report.
Uber’s chief marketing officer, Josh Mohr, told investors in March that the company was working to get drivers on board with the program.
Uber did not immediately respond to a request for comment.
Uber has faced criticism for how it handles driver-in-house ads and for its slow pace in growing revenue.
The program has had a rocky start in many cities, and many have criticized Uber for its lack of transparency about where drivers are based and how they are paid.
Uber is facing stiff competition from rivals Lyft and Sidecar, which also have paid for in-home advertising, as well as from ride-sharing services.