ReadyForZero, a US-based software provider for credit card debt management, has raised $4.5m in its series A round from a consortium including US-listed bank Citigroup’s corporate venturing unit.
Alongside Citi Growth Ventures & Innovations in the A round were venture capital firm Polaris Venture Partners and angel investors.
Christopher Kay, managing director of Citi Growth Ventures, said: "One of the ways the Citi Ventures team drives Citi’s growth is by investing in start-ups relevant to Citi businesses and customers.
"ReadyForZero is a great fit for us because they offer an innovative online service driven by consumers’ needs."
The company was originally founded with $17,000 from angel network Y Combinator.