Open DBDiff - A database comparison tool for Microsoft SQL Server 2005+ that reports schema differences and...
Devart ODBC Drivers - Reliable and simple to use data connectors for ODBC data sources. Compatible with multiple third-party tools.
Redgate SQL Data Compare - Use Redgate SQL Data Compare to compare and synchronize static, lookup, and reference data in your SQL Server database - try it free
SimbaEngine X - ODBC & JDBC Driver Development Environment
MssqlMerge - MssqlMerge is an easy to use diff & merge tool for Microsoft SQL Server databases.
CData ADO.NET Providers - A Powerful Way to Connect Your .NET Applications.