Hi,
I am researching the consumer antivirus software market and I need to
get the marketshare stats for 2003. I would like to know what the
marketshare for sale of consumer antivirus products sold in Europe in
either 2003 or 2002. Marketshare stats could be by amount of revenue
or by units sold. I would also like country-specific information, if
possible.

For example, in Germany in 2003, Symantec has 25% of the A/V
marketshare, McAfee, 10%, Panda 4%, etc, etc...

According to this research, in Europe in 2003 

http://bruno.duffet.free.fr/technique/pdf/marche_des_OS.pdf

Symantec 24,3%, 
Network Associates 21,5%, 
Trend Micro 9,3%, 
Sophos 6,8%, 
Panda Software 4,4 %, 
others 33,7%




According to Compubase research from Sep 2003, 

In france, 

Symantec - 55%
Network Associates - 22%
Computer Associates - 8%
Trend Micro - 5%
Others - 10%

http://www.01net.com/Pdf/DMD200401120575014.pdf


According to IDC, 

Worldwide Consumer antivirus software Revenue share in 2002

Symantec - 64%
Network Associates - 15.3%
Trend Micro - 7.7%
Panda - 1.9%
Others - 11%

http://solutions.journaldunet.com/dossiers/chiffres/virus.shtml

There's another report from gartner indicating symantec had the
highest market share in europe in 2002 with network associates close
behind