Kaspersky Lab (Лаборатория Касперского) is a computer security company founded in 1997, offering antivirus, anti spyware, anti spam and anti intrusion software. Kaspersky is privately held and headquarted in Moscow, Russia. Kaspersky is the largest Russian software company. In 2009, Kaspersky entered the Software Top 100 as one of the fastest growing companies. Kaspersky Lab is also among the ten largest security software companies.