Uber ultimately pulled out of China, but the investors it gained in the country became part of a gallery of far-flung Uber financiers that include U.S. geopolitical rivals under intense regulatory scrutiny by the U.S. government.
Uber's investors come in all stripes: state-owned banks and corporations from China and Russia; sovereign wealth funds from Qatar, Singapore and Saudi Arabia; a Russian businessman arrested last year on embezzlement charges; venture capital funds from across Europe and the United Arab Emirates; and Indian conglomerates and a Malaysian public pension fund.
Many of these investors will likely have made a bundle this week in Uber's long-awaited initial public offering. The company on Thursday priced its shares at $45 a piece, raising $8.1 billion in the largest U.S. IPO since 2014, and will begin trading on the New York Stock Exchange Friday.
The ride-hailing company's aggressive pursuit of capital and international presence from early on gave executives greater access to foreign investors compared to other U.S. startups. Uber was also seeking cash at a time of frenzied growth, with global investment into U.S. startups jumping 50 percent from 2013 to 2014, according to PitchBook Inc data.
That helped it raise nearly $14 billion in venture capital, making it the fourth best-funded startup globally. Uber has also raised more than $6 billion in debt, according to PitchBook.
Uber, more than almost any other Silicon Valley company, symbolizes the glut of foreign money that has helped fuel a tech investing frenzy.
But replicating its feat today would be an improbable task in the current regulatory climate, analysts and legal experts say.
In August, U.S. President Donald Trump signed a law to expand the powers of a government group known as the Committee on Foreign Investment in the United States (CFIUS), which is tasked with reviewing foreign investments for potential national security and competitive risks.
It gives CFIUS a mandate to probe transactions previously excluded from its purview, including attempts by foreigners to purchase minority stakes in U.S. startups. It must approve deals between U.S. companies employing sensitive technology and foreign investors with influence over the startup, such as a board seat.
CFIUS has so far approved only about 10 percent of the deals submitted under the new law, according to attorneys' estimates.
"What happened (with Uber) in 2015, you certainly could not do that again," said an attorney who advises clients on CFIUS cases and who spoke on condition of anonymity because of the sensitivity of the matter.
A spokesman for Uber declined to comment. Previously, Uber's former chief executive Travis Kalanick spoke publicly about the need to raise large sums quickly to buy market share and find local investors who would help smooth the regulatory path in different countries.
The lion's share of Uber's fundraising was completed prior to the new CFIUS law, and there is no indication any of these investments were in any way unlawful. Chinese state-backed funds have invested in dozens of Silicon Valley companies, from drones to self-driving cars and cyber security.
But the challenge of a tech company replicating Uber's fundraising today highlights just how much U.S. regulators have cracked down on foreign investment.
Attorneys who work on CFIUS cases say a business like Uber's would be highly scrutinized if fundraising today. The company has a trove of personal data on customers, including who they are and where they go, which CFIUS has indicated is a national security matter.
"The Uber product is its users," said the CFIUS attorney. "So when you look at it from that way you can see why CFIUS would be interested in it."
That's not to say it is impossible to raise money from overseas, and investors from ally countries have an easier time getting clearance for their tech investments.
But state-owned or state-backed investors from China and Russia in particular would be a no-go for CFIUS, say attorneys.
CFIUS earlier this year unwound the acquisition by a Chinese gaming company of dating app Grindr, calling its ownership a national security risk. Grindr collects personal information on its users and data on their whereabouts.
Uber's autonomous driving business would also likely cause problems with CFIUS today. Autonomous driving is considered important technology for the military, making it a national security concern for CFIUS.
Uber last month raised $1 billion for its autonomous vehicle unit from a consortium of investors including Japan-based SoftBank Group Corp and Toyota Motor Corp. It remains to be seen if that investment receives CFIUS' blessing.
(Reporting by Heather Somerville, Editing by Rosalba O'Brien)
By Heather Somerville