ㆍXanthon Inc.
ㆍXavier Industries
ㆍXC Corp.
ㆍX-Cel X-Ray Corp.
ㆍXebek Industrial of Texas
ㆍXEI Scientific
ㆍXenco Laboratories
ㆍXencor
ㆍXenobiotic Detection Systems Inc.
ㆍXenometrix Inc.
ㆍXenon Corp.
ㆍXenopore Corp.
ㆍXenopus Express
ㆍXenos Bioresources Inc.
ㆍXenoTech LLC
ㆍXeragon Inc.
ㆍXerox Corp.
ㆍXi Tec Inc.
ㆍXillix Technologies Corp.

ㆍXinchem Co.
ㆍXiril AG
ㆍXIRON Inc.
ㆍXiron Optical Corporation
ㆍXO Corporation
ㆍXPS International
ㆍX-Ray Copy Service Inc.
ㆍX-Ray Marketing Associates Inc.
ㆍX-Ray Medical Apparatus Co.
ㆍX-Ray Optical Systems Inc.
ㆍX-Ray Technology Group
  (Oxford Instruments)
ㆍX-Rite Inc.
ㆍX-Tech Co.
ㆍXybion Corp.
ㆍXylan Corp.
ㆍXylum Corp.
ㆍXynetix Design Systems