Driver Template
I created the Driver Template to allow programmers to more easily develop new drivers. It contains some make files and all of the function headers required for ODBC 3.5.1 compliance. Some functions have code in them while most are just stubs. I will update these from time-to-time. You can also use the source from a complete/working driver and I have some samples for this purpose.
Sample Drivers
I have a working MiniSQL driver and others can be found and/or compiled for the Driver Manager. Binary portability of Linux ODBC drivers is a stated objective but ODBC is fairly new to Linux at this time and some drivers may have problems. This should be less of a problem as ODBC becomes more used on Linux.

New Drivers
EMail here to have a driver ported/tested or to request an update to this list.

DATABASE
ODBC Level
Commercial support
Installs To odbcinst.ini
Includes DriverConfig
Comments
Support
Microsoft SQL Server 3.51 Yes Yes Yes Download free trial from Easysoft Product details
Microsoft Access 3.51 Yes Yes Yes Download free trial from Easysoft See the ODBC-ODBC Bridge entry
Oracle
3.51 Yes Yes Yes Download free trial from Easysoft
support@easysoft.com
News Group
Home Page
DB2 UDB for iSeries
3.5 Yes Yes Yes There is a driver available for Intel architectures and for iSeries partitions running Linux. The driver is an ODBC 3.5 ANSI driver with the ability to store and process Unicode data on the data source.
Download and Support
Note, we call our driver an "ODBC 3.5 ANSI driver with the ability to store and process Unicode data on the data source" because we have a narrow ODBC interface, but support the SQL_WCHAR type
DB2
3.5 Yes No No The libdb2.so library that is part of DB Connect functions as a ODBC Driver. Here is a doc about it Details
DB2
3.5 Yes     StarSQL for UNIX 3.10 and later; Solaris, AIX & Linux www.starquest.com/support
ODBC ODBC Bridge
Any remote ODBC Driver
 3.51 Yes Yes Yes
You can use the Bridge to get to any ODBC data source on a Windows machine
Download free trial from Easysoft
 Home Page
Sybase
3.51 Yes Yes No Download free trial from Easysoft
support@easysoft.com
News Group
Home Page
Informix
3.51 Yes No No The driver from informix works fine, but you need to have a look at the doc in the manuals section of the this site  
AdabasD 3.5 No No No The AdabasD ODBC-Driver is avaible for Solaris, HP-UX, AIX, Linux and several other unix types. For more information see www.softwareag.com
See http://www.softwareag.com
You can also visit the newsgroup ""comp.databases.adabas""
Empress
           
Postgresql
2.5 No No Yes We took the Win32 version (not the one in the server distribution) of the driver and got it working in unixODBC with very little changes. Changes being offered back to PostgreSQL Project
MySQL
2.5 Yes No Yes
The newest MyODBC driver works with unixODBC
The unixODBC distribution contains a snapshot of this driver, but the above link will be current
 http://www.mysql.com
MiniSQL
3.51 Yes Yes Yes In alpha pharvey@codebydesign.com
TEXT (SQI)   No No Yes very basic INSERT, SELECT, UPDATE and DELETE pharvey@codebydesign.com
nntp (News)   No No Yes
Minimal ODBC functions implemented. Basic but very useful subset of SQL
Enhanced version of Ke Jin's Internet News Server ODBC driver
News servers are data sources and news groups are tables
 pharvey@codebydesign.com
Yard SQL 3.5 Yes     This port has been done by the YARD people themself's The YARD web site
InterBase 3.5 Yes Yes Yes
InterBase 6 and 7
Available for Windows, Linux Intel, Solaris
Download free trial from Easysoft
 Easysoft
Firebird 3.5 Yes Yes Yes
Available for Windows, Linux Intel, Solaris, OSX
Download free trial from Easysoft
 Easysoft
RDBMS Linter SQL 3.5 Yes Yes Yes Original ODBC driver ported to UNIX
www.relex.ru
www.relexus.com
Ovrimos Webbase
3.5 Yes Yes Yes http://www.ovrimos.gr/download.php support@ovrimos.com
Mimer SQL
3.51 Yes   Yes Visit www.mimer.com/developers for more information and free download of this high performance DBMS. www.mimer.com/developers
Ingres
3.51 Yes Yes No Available for Windows, Linux, UNIX, and VMS. Includes ODBC Data Source Administrator utility to define Data Sources. Download from Ingres Downloads. More documentation in Understanding ODBC Connectivity Ingres  
SAP DB
3.51 Yes        
Microsoft SQL Server
Adaptive Server Enterprise
3.0 No No No See FreeTDS site www.freetds.org for more information. This driver support all SQL Server (Sybase and Microsoft) version using TDS protocol. See main site for mailing list.
Solid 3.51 Yes Contact Solid Contact Solid Please visit www.solidtech.com  
SQLite 3.0 No Yes Yes Download from www.ch-werner.de/sqliteodbc See download URL