The home-rental website, Airbnb, is reportedly looking to raise some 20-billion euros in financing.
The massive sum is based on the San-Francisco outfits earning projections.
Insiders believe the firm will make around €8-9 billion by 2020, despite ongoing legal tussles over lodging rights and local taxes.
Currently, Airbnb has about a 1% share of the global rental market, and it would need to increase that share to as much as 10% in only five years, according to some analysts.
The firm raised money in April last year at a €9 billion valuation. If it can seal the deal on this new round, it will be the second highest-valued startup behind taxi firm Uber.