| XRADIA, INC. | XRF ANALYTICAL AB ( Orsundsbro, SE ) | Xros, Inc. |
| Xradia, Inc. ( Concord, CA ) | XRF Corporation ( Somerville, MA ) | XROS, Inc. ( Santa Clara, CA ) |
| XRDi ( Beaufort, SC ) | XRF Scientific Limited( Victoria ) | Xros, Inc., a California corporation |
| XRDi, Inc. | Xrgomics Pte, Ltd.( Singapore ) | Xrosswater Limited( Hamilton ) |
| XRDi, Inc. ( Beaufort, SC ) | XRL, Inc. ( Canton, MA ) | XRT Limited( Mulgrave ) |
| XRD-Tools S.R.L.( Casina ) | Xronix Communications, Inc. ( Mountain View, CA ) | XRT Limited ( Mulgrave, Victoria ) |
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