Mobile phone coupon company Cellfire has raised $12 million in a third round of funding.

The round includes a new investor, Silver Creek Ventures, and existing ones, including Menlo Ventures and Storm Ventures.

People who sign up for Cellfire’s service automatically receive coupons on their cell phones. If they accept the coupon, users receive a unique redemption code that’s redeemed at the store.

San Jose-based Cellfire was founded in January 2005. The company says it has distributed more than eight million coupons worth more than $24 million in discounts. Stores acceptingCellfire coupons include Hardee’s, Hollywood Video, Papa John’s and Taco Bueno.

We wrote about Cellfire’s launch here.

VentureWire reports that Cellfire will use the new funding to hire more marketing and business development staff.