AVG Technologies is a security software company headquartered in Amsterdam, Netherlands, that was founded in Brno, Czech Republic in 1991 by Jan Gritzbach and Tomáš Hofer. The company develops antivirus software and internet security services such as AVG AntiVirus and has corporate offices in Europe, Israel, Brazil, Canada and the United States and is listed on the New York Stock Exchange. As of 2 February 2015, over 200 million active users used AVG's software products and services, which include internet security, performance optimization and personal privacy and identity protection applications. In July 2016, Avast Software announced that it intends to acquire AVG. The acquisition was completed on September 30, 2016 and Avast and AVG operate as a single company as of Monday, October 3,