PC Plotter
Offers a marine chart plotter that operates on a personal computer or laptop.
http://www.pcplotter.com

MasterGraphics
MasterGraphics is a value-added solutions provider with a practical approach to technology systems helping design-intensive businesses work smarter, harder and more profitably. We help you innovate by taking your design data further: We make it work.
http://www.masterg.com/

Graphics::Plotter
CPAN module for the C++ GNU plotter library.
http://www.klaban.torun.pl/prog/libplot/

CNC Solutions, Inc.
Shop-Talk Cad/Cam Windows-based CNC programming software for CNC lathes, mills, torches, etc. Specialized software for tool verification back plotter and CNC CAM editor. Since 1988.
http://www.shop-talk.com/

Ptplot
2D data plotter and histogram tool implemented in Java. Ptplot can be used as a standalone applet or application, or it can be embedded in your own applet or application. [Open Source]
http://ptolemy.eecs.berkeley.edu/java/ptplot/

kmplot
A mathematical function plotter for the KDE-Desktop
http://home.foni.net/~kdmoeller/kmplot/

Easyspec
A small spectrum-analyzer like plotter.
http://www.billauer.co.il/easyspec.html

Starmap
Interactive night sky plotter. [freeware - Windows]
http://webpages.charter.net/thegl/starmap.html

Tomas Helm
Wartungs- und Reparaturservice für HP DesignJet-Plotter.
http://home.debitel.net/user/ot.printerfit/

Contour Tool & Machine Inc.
Speicalizing in screw machine tools, high speed steel & carbide form tools, Dovetail form tools, shave tools and reamers. Recess Tools,High Speed Steel Cutting Tools,Turning Tools, DOVETAIL FORM TOOL BLANKS, Indexable tooling.
http://www.contourtoolinc.com