Clearspring Technologies Raises $20 Million Led By IVP

Posted May 11, 2011

Clearspring Technologies is the parent company of AddThis, a widget that enables website visitors to share content. Clearspring has raised $20 million in a fourth round of funding, led by Institutional Venture Partners. Former AOL executive and director Ted Leonsis is the company’s chairman and Hooman Radfar is CEO. AddThis is installed on over 9 million websites and is used over 1 billion times per month. [MarketWire]