Field39 d.o.o.

Field39 is the architect of Switch39, a battle-tested payment switching engine designed for the most demanding mobile and retail environments. Currently managing the mission-critical infrastructure for 7,000+ London Black Cabs, our platform runs on a scalable, AWS-native architecture. We solve the "hard" side of payments by providing a revolutionary pos-to-host bridge that slashes hardware certification times.

By replacing traditional percentage-based fees with a transparent fixed-fee model, Field39 empowers payment providers to reclaim their margins and scale without technical or financial friction.