 Vertigo Technology
 - Develops 3D software products for the SGI and PowerMac. Includes info on the 3D Dizzy plugin for Photoshop.- Alien Skin Software
- Makes Photoshop compatible graphics filters such as EyeCandy and Xenofex.
- Andromeda Software
- Creates graphics filters for use with Adobe Photoshop, Paint Shop Pro, and compatible programs.
- Artlandia, Inc.
- Automates creation of symmetry-based designs and ornaments for various applications.
- Auto F/X
- Visual imaging software.
- Boxtop Software, Inc.
- Products include PhotoGIF, ImageVice, ColorSafe, GIFmation, ProJPEG and other file format plugins for Photoshop and other programs.
- ChromaSoftware
- Makes Photoshop filters for amateur and professional photographers such as shadow and highlight recovery, smart sharpening, lens correction tools, and more.
- DCspecial 2.0 Plugin Filters for Adobe PhotoShop 3.0
- Free filters.
- Digital Anarchy
- Develops special effects plug-ins and filters for video and photography software, including Adobe Photoshop, After Effects, Premiere Pro, Avid, Autodesk, and Final Cut Pro.
- EffectWare
- System integration & consulting. CAD, CG, VR programming service with 3D animation and special effect experience.
- Fantastic Machines
- Offer FM Tile Tools - a set of 12 image altering plug-ins for Photoshop, Paint Shop Pro and other programs.
- FilterFormula by ATS/Graphics
- Filter authoring software.
- Free Filters @edesign.com
- Two original Photoshop plug-in filters.
- Furbo Filters
- Photoshop plug-ins that simplify graphic tasks for graphic designers.
- Gamut Imaging
- Develops plug-ins for creating index prints.
- Hot Door
- Developers of Adobe Photoshop and Adobe Illustrator plug-ins and filters.
- Kodak Photo CD Acquire Module
- A Photoshop compatible filter designed around the Photo CD image format.
- MAX Plugins.de
- Database for freeware 3D Studio MAX plugins.
- New Virtual Research
- Filters designed to create a variety of basic borders and images.
- Nik Software
- Offers filter and plug-in products for digital photography and imaging professionals including U Point, Dfine, Nik Colour Efex Pro, and Nik Sharpener Pro.
- Panopticum
- Creates special effects and plugins modules for the graphics and video editors.
- Panorama Tools
- Features PTStitcher, Panorama Tools, and PTViewer, software to view, create, edit, and remap panoramic images.
- paragate
- Offeres Photoshop plug-ins and Web design services.
- PlugIn Site, The
- Commercial and freeware solutions for Photoshop plugins and filters. Offers Plugin Commander, a plugin managing and editing program.
- Segmation
- Plug-ins that allow users of Adobe Photoshop and 3D Studio Max to create wonderfully detailed images and models.
- SilverOxide
- Makers of PhotoShop filters to convert colour images into various brands of black and white films.
- Simple Filters Page
- Free plugins for Photoshop and Paint Shop Pro.
- Stoik Software
- takeStock
- Royalty free photographs and type/graphics software.
- Virtual Mirror Corporation
- Develops Adobe Illustrator plug-ins. Also provides consulting services related to computer graphics.
- Xaos Tools, Inc.
- Adobe PhotoShop plug-in filters including Paint Alchemy, a brushing engine; Terrazzo, a seamless tile maker; and SGI animation software.
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