Covert One Novels by Robert Ludlum

http://www.ludlumbooks.com/covert-one-books.html lists them in chronological order:

The Hades Factor (by Gayle Lynds) (2000) 

The Cassandra Compact (by Phillip Shelby) (2001) 

The Paris Option (by Gayle Lynds) (2002) 

The Altman Code (by Gayle Lynds) (2003) 

The Lazarus Vendetta (by Patrick Larkin) (2004) 

The Moscow Vector (by Patrick Larkin) (2005) 

The Arctic Event (by James H. Cobb) (2007)