Mobile marketing company 5th Finger has raised $7 million from Australian venture capital firm Starfish Ventures. The company will use the capital to fund its ongoing growth in the U.S.

5th Finger is known for its innovative use of the mobile phone as an effective mechanism for helping brands engage with target audiences. One of 5th Finger’s most notable success includes the ground breaking project with the Live Earth Concert Series. The company was responsible for all SMS, Web and Green Button (iTV) interactions for the global Live Earth campaign.

The company has already made significant traction in the North American market working with clients including MSN Mobile, Nike, Newline Cinema, and Amazon. It is also working with leading interactive agencies in the U.S., including Avenue A | Razorfish, Grey, and Cadient on mobile marketing programs.