Worldwide Antivirus Market Share
https://www.opswat.com/resources/reports/antivirus-january-2014
Market Share
23% - Microsoft
15.9% - Avast
9.0% - AVG
8.1% - ESET
8.0% - Symantec
5.6% - Avira
5.5% - Kaspersky Lab
4.2% - Malwarebytes
3.5% - McAfee
2.7% - COMODO
2.6% - Bitdefender
1.9% - Panda
10.0% - Others
https://www.opswat.com/resources/reports/antivirus-and-compromised-device-january-2015
Market Share
21.4% - Avast
19.4% - Microsoft
8.6% - AVG
7.4% - Avira
7.1% - Symantec
6.2% - McAfee
4.2% - ESET
3.5% - Kaspersky Lab
2.6% - Comodo
2.1% - Spybot
1.8% - Bitdefender
15.8% - Other