Integral Ad Science on Monday announced the opening of offices in Germany and Singapore. The company’s CEO, Scott Knoll, hinted in early January that the company would be opening offices in these two markets. Integral has tapped Olaf Mahr as managing director, Germany, and Stephen Dolan as managing director, Asia-Pacific. Mahr joins Integral from Pilot, where he served as managing director for the media agency. Before that, was was CEO of VoodooVideo, a video ad tech platform. Dolan joins from Facebook, and Integral says he was Facebook’s first employee in Asia. Before Facebook, he worked at Microsoft Advertising.“We’re bringing two powerhouses to our international team with Olaf and Stephen,” stated Knoll. “They not only deeply understand the needs of the advertising markets in Germany and Asia-Pacific, but they have the extensive background in ad technology."