Tuum

core banking platform · Tallinn, EE · tuum.com ↗

Estonian API-first core built by ex-bank-IT veterans — migrated millions of LHV UK accounts with zero downtime, making it the credible European challenger to Mambu and Thought Machine.

No publicly documented client among the tracked neobanks yet — client names are added only when a relationship is disclosed. Know one? Suggest it.

Other core banking platforms

Thought Machine Temenos Pismo Mambu 10x Banking Engine by Starling Finacle Finastra Finxact Oradian Technisys SaaScada

exploreBrowse all 106 infra providers, or see who funds the neobanks on the investors map.

Client list shows tracked neobanks with a publicly documented relationship — not a complete customer book. Sourced from issuer disclosures and public reporting; suggest a fix.