Nikogiannis (John) Karantzis

Nikogiannis (John) Karantzis is Group Chief Executive Officer and Managing Director at Xryma Plc.

Nikogiannis (John) Karantzis has featured in 1 news story on FF News, most recently "Xryma Plc Goes Live on ECB T2 Network for Instant Cross-Border Euro Payments" (25 September 2026).