"Expectations are always raised as you raise more money, bring more investors in and increase the valuation like that," Bowden said. "So the margin for error definitely gets smaller. The spotlight is definitely on them. Any misstep at all, any decrease in rate of growth or anything like that they are going to be heavily scrutinized. So it absolutely does raise their entire profile."
Such a large valuation also has the potential to hurt the company when it goes public.
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Because Uber is following in Facebook's footsteps of raising large later-stage rounds instead of going public, when the company finally does go to market its valuation could take a hit.
"It definitely raises the risk. You see what happened with Facebook and others, being valued at such a large valuation definitely ups the risk of an unsuccessful IPO or one that initially comes out lower than the valuation in the private markets," Bowden said.
Another growing point of pressure that comes with more investors and more money is a push to change the company culture, experts said. Scandals involving privacy issues and shady business practices have plagued the company recently, so there may be mounting pressure to shake up management and adjust the corporate climate.
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"These investors at the end of the day are looking at financial more than anything else. And you know the cultural and political risk is factored in. But depending on the size and type of investor, they may bring some pressure on the company," Bowden said.