"Founded in 2022 by former Microsoft security consultant Joran Dirk Greef, TigerBeetle operates an open source Apache 2.0 database which provides debit and credit primitives out-of-the-box for specialised high-performance online transaction processing (OLTP)."

https://www.fintechfutures.com/2024/07/financial-transactions-database-tigerbeetle-raises-24m-series-a/?stream=top