Daffodil Software, Ltd
- A embeddable, SQL-99 specification compatible, Java-based database engine. [Commercial and open source]
- http://db.daffodilsw.com/

DBScribe
- Documentation tool generating output in HTML, CHM and MS Word formats. SQLServer, Oracle, DB2, MySql and PostgreSQL supported. [Commercial, trial versions]
- http://www.leadum.com/products.php?prod_type=DBScribe

ADO Explorer
- A tool that presents a explorer tree view of a database. By PEYO.
- http://www.peyo-home.sk/adoexplorer/

YARD-SQL
- SQL database system for UNIX from YARD Software GmbH.
- http://www.yard-sql.de/

Frontline Software
- FrontBase is a cross-platform SQL database with conformance to many international and de facto standards.
- http://www.frontbase.com/

Red Gate Software Limited
- Supplies tools for SQL server database developers and DBAs for comparing and syncrhonizing databases.
- http://www.red-gate.com/

Quadcap Software
- The Quadcap Embeddable Database is a high performance pure Java database coupled with a JSP-enabled Web Server. QED supports Internet, intranet, and CDROM deployment of web applications.
- http://www.quadcap.com/

IBX Data Systems Ltd.
- Creator of DBsurfer, an English query and decision support tool with a synthetic language interface that generates optimizable SQL for fast information retrieval.
- http://www.dbsurfer.com/

DevGuru Intro to Microsoft JetSQL
- 40 page reference tutorial that explains and gives examples of code for Jet SQL clauses, declarations, expressions, functions, operators, and statements.
- http://www.devguru.com/technologies/jetsql/quickref/jet_sql_intro.html

DataMirror Mobile Solutions, Inc. - PointBase
- Java database for embedding within Java applications to manage and distribute data on servers, laptops, PDAs and other mobile devices. Supports standard SQL and JDBC, and can synchronize to back-end enterprise databases.
- http://www.pointbase.com/

Data Transformations Inc.
- SQL Query Tools available for download, and database consultation services.
- http://www.datatransformations.com/

CAST
- Software for source code parsing, debugging, impact analysis, real time map building and evolution management for all client/server SQL based applications.
- http://www.castsoftware.com/

Mimer Information Technology AB
- MIMER is a SQL based relational database management system (RDBMS) targeted at mission critical client/server environments.
- http://www.mimer.com/

DTM SQL editor
- SQL editor with ODBC and IDAPI support, visual query builder, syntax highlighting, and search and replace capabilities.
- http://www.sqledit.com/