Type Solutions, Inc.
- Font Fusion font rendering engine technology.
- http://www.typesolutions.com/

Fontlab LTD
- Typography tools for editing, converting, designing, and manipulating digital typefaces and font families.
- http://www.fontlab.com/

FontLab Digital Typography Tools
- Software for font design, creation, conversion, editing and manipulation: FontLab, ScanFont, TypeTool, TransType, FONmaker, and FontLab Composer.
- http://www.pyrus.com/

FontForge
- A postscript font editor to create postscript, TrueType, opentype, cid-keyed and bitmap (bdf) fonts, or edit existing ones. Also, convert one format to another.
- http://fontforge.sourceforge.net/

Font Fusion
- Bitstream's latest, most advanced font rasterizing engine, a font subsystem that renders high quality characters in any format, at any resolution, on any device.
- http://www.bitstream.com/categories/developer/fontfusion/index.html

D-Type Font Engine and Grayscale Rasterizer
- Scalable graphics library for smooth (anti-aliased) text and vector based graphics with direct support for TrueType, Type 1 and D-Type fonts.
- http://www.d-type.com/

Dave Emmett's Softy Support Page
- Softy is a shareware editor for TrueType and Bitmap fonts.
- http://users.breathe.com/l-emmett/