The operator of Polish mobile payment system Blik is looking to expand internationally through the acquisition of Slovakian player Viamo.
Terms of the deal - which still requires the approval of Slovakia's central bank - were not disclosed.
Operating since 2013, Bilk offers P2P payments and payments to businesses based on QR codes and links. The company is also a payment gateway provider.
It has relationships with two banks - Tatra banka and VÚB - although its services can be used by customers of all banks in Slovakia via its own app.
Dariusz Mazurkiewicz, president of Blik operator Polish Payment Standard, says: "The acquisition of the Slovak company Viamo is another important step for us, which will strengthen our position in the region.
"We see a huge potential of this market, especially in the context of our action plans throughout the euro area."