SAN FRANCISCO: Fleishman-Hillard, ICR, and Brunswick Group handled the financial communications for the Visa IPO, the largest in US history.

ICR, which has worked with Visa for five years out of Westport, CT, provided technical financial communications counsel. Brunswick, which was retained two years ago, aided corporate, global, and financial communications. Fleishman, Visa's primary agency, contributed to its IPO and preceding restructuring, as well.

Before the IPO began, Visa underwent a restructuring that merged its worldwide regional businesses under the new Visa ...