The Complexica logograph in the upper left corner was designed by Michelle Mosser and Roger Jones with help from Michelle Hoeft.

The previous Complexica logograph (until July 2001), shown at the right, was designed by Alberto Donati and Roger Jones. It is in the form of an interlocking pattern of logarithmic spiral 'C's, forming a large 'Cx', superimposed on a series of golden rectangles. The design is meant to convey the application of a simple solution to a series of increasingly complex problems.

The current logograph evolved from a earlier design, shown at the left, designed by Doug Craft.

Before October 2000, Complexica used a different logograph, shown at the right, designed by Roger Frye.