http://www.datadirect.com/products/odbc/db2
The Progress DataDirect Platinum ODBC driver for IBM DB2 delivers the best performance and scalability for applications connecting to IBM DB2. One DB2 ODBC driver simultaneously supports multiple DB2 versions and multiple DB2 platforms, including iSeries and z/OS. The DataDirect Connect for ODBC IBM DB2 driver is available for UNIX and Linux platforms as well as Windows and for 64 bit applications.
DataDirect's unique wire protocol DB2 ODBC driver eliminates the need for DB2 Connect client libraries to connect to the database. This translates into better response time, throughput, and scalability and reduces the cost of deploying and maintaining applications.
Progress DataDirect (http://www.datadirect.com/)