The strategic corporate venturing investment in Square came 12 months after Visa linked up with DeviceFidelity to launch its version, In2Pay, of Square's service.

Visa, a US-based payment card provider, has provided an undisclosed amount to Square, a mobile phone credit card reader.

The strategic corporate venturing investment came 12 months after Visa linked up with DeviceFidelity to launch its version, In2Pay, of Square’s service.

Visa has been moving into online and virtual payments after buying PlaySpan for $190m in February.

In January, news provider TechCrunch said Square was preparing to raise a round at more than $200m and potentially bring in a strategic…