GTX Corporation  
   Tools for cleaning scanned documents for office and engineering purposes, as well as raster conversion software for AutoCAD and DXF.
   http://www.gtx.com/

SoftCover International Ltd.  
   Scan2CAD raster to vector conversion software with OCR text recognition and editing tools.
   http://www.softcover.com/

Able Software R2V  
   Raster to vector conversion software automated map digitizing and GIS data capture applications.
   http://www.ablesw.com/r2v/index.html

Trix Systems, Inc.  
   Products include scanner drivers, viewers, raster to vector and vector to raster conversion, and engineering document management.
   http://www.trixsystems.com/

SV ScanRaster  
   Raster to vector conversion software for converting paper drawings into CAD.
   http://www.cadshop.co.uk/scanraster/

RasterVect Software  
   The raster to vector conversion program RasterVect allows you to transform scanned raster images into vector format on Windows systems.
   http://www.rastervect.com/

Arbor Image Corporation  
   Draftsman series raster to vector software for standalone operation or as an add-on for AutoCAD.
   http://www.arborimage.com/aihome.htm

RasterTech  
   OEM supplier of software for direct editing and raster-to-vector conversion of scanned images.
   http://www.rastertech.co.uk/

celinea  
   CR2V converts raster images to vector graphics and exports into SVG and Postscript.
   http://www.celinea.com/

Easy Trace  
   Cartographic raster-to-vector conversion software with tools for topology creation, checking and editing.
   http://www.easytrace.com/

Softelec GmbH  
   Providers of the HybridCAD software for raster to vector conversion and AutoCAD line tracing.
   http://www.softelec.com/

WinTopo  
   A raster to vector conversion tool supporting several image and CAD/GIS file formats.
   http://wintopo.com/softsoft/wintopo/index.htm

VextraSoft  
   Vextractor raster to vector conversion tool for CAD and GIS systems.
   http://www.vextrasoft.com/

AutoTrace  
   A platform independent program for converting bitmap to vector graphics, distributed for free under the GPL.
   http://autotrace.sourceforge.net/

Sinclair Knight Merz  
   ProVec Color is a raster-to-vector conversion product, with raster editing and transformation modules, compatible with common CAD systems.
   http://www.skmconsulting.com/spatial/cadproducts/

Ravtek Inc.  
   Ravtek is the maker of Crucible, an automatic raster to vector conversion system.
   http://www.ravtek.com/

Consistent Software  
   Hybrid graphics editing and raster to vector conversion software, as standalone programs and within AutoCAD.
   http://www.csoft.com/