Advanced Oncotherapy Plc.
Biosig Technologies Inc.
Danfysik A/S
Elekta
Hitachi Ltd.
IBA
Mevion Medical Systems
Panacea Medical Technologies
Optivus Proton Therapy Inc.
P-Cure
ProTom International
Provision Healthcare
Siemens Healthcare GmbH (Variant Medical Systems Inc.)
Sumitomo Heavy Industries
Ltd.
Toshiba Medical Systems Corp.