Revolut is Europe's most valuable private tech company offering global banking, currency exchange, crypto trading, and financial tools. 2M+ lines of Python code. Cloud-native with autoscaling infrastructure.
Flexible / All timezones
Block, Inc. (formerly Square) is a US-based digital payment and financial services company. The parent company rebranded to Block in 2021, while Square remains as the brand for the seller business. Also includes Cash App, TIDAL, and TBD.
Featurespace provides adaptive behavioral analytics and machine learning for fraud prevention. Founded in Cambridge 2008, acquired by Visa in September 2024.
Lydia (founded 2011, Paris) is French mobile payment fintech unicorn with 8M users. ACPR-regulated electronic money institution. Split into Lydia (P2P payments) and Sumeria (mobile banking). €100M investment plan, hiring 400 people. 201-500 employees.
Castellum.AI (founded 2019, NYC) provides financial crimes compliance platform with AML/KYC screening and AI agents. 83% alert resolution, 94% fewer false positives. 200K+ data sources. $12.6M raised.