- Quark Inc
- Producer of software applications related to design, publishing and content management, the most popular being QuarkXpress. Available for Macintosh computers and PC. Quark’s main rival is Adobe Systems Inc.
- See also Adobe Systems Incorporated, QuarkXpress
- A software application used for professional desktop publishing (DTP) and page layout. Available for Macintosh computers and PC. QuarkXpress’s main rival is Adobe Pagemaker.
- See also Pagemaker, Quark Inc