The company faces regulatory hurdles in these countries
Uber is locked in an intense battle with market leader Ola, which counts Didi as an investor.
US taxi-hailing firm raises the money from Saudi Public Investment Fund to support global expansion.
The development comes close on the heels of Uber planning to invest substantial part of $3.5 bn Saudi money in India.
Investments are at risk if operators are unable to resolve concerns of authorities and customers after the rape accusation.
In India, it is fighting a pitched battle against Ola.
With a new $100-billion technology fund, SoftBank is likely to go after market leaders.