The Collaborative International Dictionary of English v.0.48:
Systemizer \Sys"tem*i`zer\ (s[i^]s"t[e^]m*[imac]`z[~e]r), n. One who systemizes, or reduces to system; a systematizer.WordNet (r) 3.0 (2006):
systemizer n 1: an organizer who puts things in order; "Aristotle was a great orderer of ideas" [syn: orderer, systematizer, systematiser, systemizer, systemiser, systematist]