Quest Software, Inc.
You can create data models and deploy accurate changes to data structures.
The Half-Life Model Viewer is a nice tool to view and analyze HL 3D models.
Performance Trends Inc
The Engine Analyzer lets you simulate an engine build-up.
Design 2D and 3D models for architectural design or structural engineering.
Antares Audio Technologies
Harmony Engine is a real-time harmony generating plug-in.
Zing is a state-exploration engine for models of concurrent software systems.
STP Viewer is an application which allows users to view 2D or 3D CAD models.
Cut3D is a dedicated toolpath engine for CNC machining 3D models.
Kohler sizing generator including industry leading features.
Alaska Satellite Facility Geophysical Institute
The SAR Training Processor (STP) is a graphical tool.
STP will transform your Windows interface to look like Mac OS X Snow Leopard.
MetaQuotes Software Corp.
LexiFX is a worldwide STP/ECN online forex broker.
Spotware cTrader provides full STP access to the currency trading markets.
Simulation Lab Software
This plugin allows users to import *.stp, *.step files into Google SketchUp.
ASP.NET control for viewing AutoCAD DWG, DXF, STP in browsers, SharePoint, etc.