$55 million in its IPO. Less than six months after its IPO, the company had its secondary public offering. In August 1999, the Postal Service granted permission for Stamps.com to sell its service nationally. Stamps.com purchased IShip.com, a company that compared prices of shipping services, for $305 million in stock or eight million shares, in October 1999.

In 2001, Stamps.com named Ken McBride its CEO. The U.S. Postal Service authorized the first market test of PhotoStamps in 2004. In