The Geometer's Sketchpad is developed by KCP Technologies, Inc. and is published in the United States by Key Curriculum Press.
- Key Curriculum Press
Publishes middle school and high school mathematics textbooks, high school science textbooks, mathematics software, supplemental workbooks and materials, and manipulatives. Also maintains the list of Sketchpad's International Publishing Partners.
Mathematics resource site for students, parents, and mentors sponsored by Key Curriculum Press.
- KCP Technologies
Develops mathematics education software including The Geometer's Sketchpad and Fathom Dynamic Data.