Investors have doubled down on the Sony-backed digital banking platform developer, helping it boost its total funding to about $38m.

Bitwala, a Germany-based blockchain banking service backed by consumer electronics maker Sony, has received over €15m ($17.9m) in a funding round led by venture capital firm Earlybird, Gruenderszene has reported.

VC fund Coparion and VC firm Global Brain also contributed to the round, alongside undisclosed existing investors.

Founded in 2015 as a cryptocurrency exchange platform, Bitwala now offers customers a regulated bank account that can process debit and credit transactions as well as cryptocurrencies.

The company has about 150,000 customers…