Green Festivals Inc., which bills itself as the longest-running sustainability event, has hired Finn Partners to get word out about its promotional showcases of green products and services.

FP will handle sponsorship development, media relations and corporate communications for the festivals that kick off in April and run through November in New York, Washington, Chicago, Los Angeles and San Francisco.

Based in Asheville, N.C. GFI has enjoyed past corporate support from Ford, Clif Bar, Honest Tea, Patagonia and Aveda.

Corrinna Basler, VP of GFI, said in a statement that FP will help her group “broaden its reach and engage more people and businesses with messages about sustainability.”

The independent PR firm, according to Anne Glauber, director of its global issues practice, stands eager to bolster GFI as it demonstrates “how social innovation in the private sector can drive change.”