| Bitdefender | 2001 | Romania |
| Kaspersky | 1997 | Russia |
| Trend Micro | 1988 | Taiwan |
| Norton | 1991 | United States |
| Avira | 1986 | Germany |
| Avast | 1988 | Czech |
| eset | 1992 | Slovakia |
| McAfee | 1987 | United States |
| AVG | 1991 | Czech |
| Malwarebytes | 2008 | United States |
| F-Secure | 1988 | Finland |
| Sophos | 1985 | United Kingdom |
| BullGuard | 2002 | Denmark |