Exhibit 21.1

Caliper Life Sciences, Inc.
Subsidiaries as of December 31, 2006

·Caliper Life Sciences Europe, incorporated in Belgium (wholly owned subsidiary of Caliper Life Sciences, Inc.)

·Caliper Life Sciences Benelux NV, incorporated in Belgium (wholly owned subsidiary of Caliper Life Sciences Europe)

·Caliper Life Sciences S.A., incorporated in France (wholly owned subsidiary of Caliper Life Sciences, Inc.)

·Caliper Life Sciences GmbH, incorporated in Germany (wholly owned subsidiary of Caliper Life Sciences, Inc.)

·Caliper Life Sciences AG, incorporated in Switzerland (wholly owned subsidiary of Caliper Life Sciences, Inc.)

·Caliper Life Sciences Ltd., incorporated in the United Kingdom (wholly owned subsidiary of Caliper Life Sciences, Inc.)

·Caliper Life Sciences Ltd., incorporated in Canada (wholly owned subsidiary of Caliper Life Sciences, Inc.)

·NovaScreen Biosciences Corporation, incorporated in Delaware (wholly owned subsidiary of Caliper Life Sciences, Inc.)

·Marizyme Corporation, incorporated in Delaware (wholly owned subsidiary of NovaScreen Biosciences Corporation)

·Oceanix Biosciences Company, incorporated in Delaware (wholly owned subsidiary of NovaScreen Biosciences Corporation)

·Xenogen Corporation, incorporated in Delaware (wholly owned subsidiary of Caliper Life Sciences, Inc.)

·Xenogen Biosciences Corporation, incorporated in Ohio (wholly owned subsidiary of Caliper Life Sciences, Inc.)