The technologies that we have worked in extensively include

Client Side

• Adobe Flex™
• Adobe Flash™
• AJAX (with a major library like the Google Web Toolkit—we're not insane)
• DHTML (Javascript, CSS and HTML)
• Java Swing
• Microsoft .Net Winforms

Presentation Layer

• Java Servlet-based technologies (JSF, JSP, etc.)
• Microsoft .Net

Database Technologies

• MySql
• Microsoft SQL
• DB4O