Jonathan Rosenberg

Part of Microsoft Corp., Skype Communications SARL is a Luxembourger company that provides cost-effective and collaborative tools for businesses of any size. Skype Communications is based in Luxembourg City, LU and was founded in 2003 by Janus Friis and Niklas Mårten Zennström. The private company's services allow users to collaborate with anyone, anywhere, on any device. The company offers free video chat, messaging, and affordable international calls. Users can create instant online video calls with one click, with no download required.

Service Integrity, Inc. develops business intelligence software. It designs and develops web monitoring and analysis software. The company was founded by Jonathan Rosenberg and Arthur Mateos in 2002 and is located in Lexington, MA.

dynamicsoft, Inc. was an IP telephony software company. It was a provider of carrier infrastructure software for packet-based wireline and wireless communications networks. It offered Internet infrastructure solutions for deploying communications services. dynamicsoft was based in Parsippany, NJ.