CO-OP Financial Services, based in Rancho Cucamonga, processed more than 200 million electronic payments in December, the company reported.
It was the first time the company ever processed more than 200 million transactions in a single month.
CO-OP Financial services provides payment processing and other services to credit unions. The company processed some 2.2 billion payments in all of 2011.
The company first crested the 1 billion mark in 2004.