Xaiz Roberto
Xanthoudakis Steve
Xaus Pey Jordi
Xavier K. Asish
Xbiotech Inc.
Xbrane Bioscience Aktiebolag
Xcellerex Inc.
Xcyte Therapies Inc.
Xdx Inc.
Xechem Inc.
Xencor
Xenogen Corporation
Xenome Limited
Xenometrix Inc.
Xenomics Inc.
Xenon Genetics Inc.
Xenon Genetics Inc.
Xenopore Corporation
Xenotech Incorporated
Xenova Research Limited