Osper
“Can a consumer youth-banking app become the default white-label platform banks and brands use to launch their own kids' card programmes?”
Founded2013
HQUnited Kingdom (with presence in Gibraltar)
FoundersAlick Varma
Total raised$11.2M
Latest roundSeries A, 2014
IndustryFintech / Consumer banking
The story
Osper launched in 2013 as a consumer-focused prepaid Mastercard and mobile app that teaches children how to manage pocket money, backed by a $10M Series A from Index Ventures in 2014. Since then it has evolved into a dual business: the consumer-facing Osper card in the UK, and Prosper — a white-label 'youth bank in a box' selling the underlying platform to banks and fintechs launching their own youth card programmes globally. The Kani Payments partnership signals the platform's ongoing shift from consumer app to full B2B fintech infrastructure.
Product timeline
2013
Osper founded, emerging from Techstars London accelerator· founding
2014
Raised $10M Series A led by Index Ventures to launch out of beta· funding
2015
Osper prepaid Mastercard for children goes live in the UK· banking
2019
Launched Prosper — a white-label youth-banking platform built on the Osper stack· pivot
2025
Partnered with Kani Payments for reconciliation and reporting as it scales the B2B platform· pivot
The stack
4 layers disclosed in Osper’s embedded-finance stack
Payments / PSP
Osper Prepaid Mastercard (self-operated)
Banking / BaaS
in the full report
Card issuing
in the full report
Card network
in the full report
Accounting gap: none
3 more providers across 3 layers, with confidence-scored evidence and source URLs, are in the Embedded Finance Index report.