Big tech companies are expanding their financial services offerings across the globe, but the landscape and opportunities differ depending on the region.

Europe, with the regulator-driven advent of open banking, is seeing a slow influx of big tech companies expand into financial services. Asia has seen more aggressive expansion due to the proliferation of mobile technology, friendliness of

regulators, large number of underbanked individuals, and consumers' willingness to use digital financial services.

Big tech's jump into financial services may seem odd and fairly sudden, but enabling customers to move and manage money within big tech products is a smart way to entrench a brand in consumers' lives. The end goal would be to own all things digital, so that every single revenue generating consumer activity within the digital stratosphere is facilitated by big tech companies.

According to a Bank for International Settlements (BIS) report, 11.3% of large tech companies' revenue comes from financial services; that's a relatively small portion. However, given the size of big tech companies it's not insignificant, and many are actively expanding their financial services offerings. Big tech companies offer various financial services; the most popular are payments, followed by credit lines, money market funds, and insurance.