1)   microOLAP Database Designer for PostgreSQL 1.2.4
Visual development system intended for database design, modeling, creation, modification and reverse engineering in an easy and powerful way. Accelerates the process of PostgreSQL database creation and makes it clear.

 2)   PostgreSQLDirect .NET Data Provider 3.70
An enhanced data provider for PostgreSQL-based database applications development that offers both high performance native connectivity to the PostgreSQL database and a number of innovative development tools and technologies.