EXHIBIT 21.1

DATA I/O CORPORATION

SUBSIDIARIES OF THE REGISTRANT

The following table indicates the name, jurisdiction of incorporation and basis of ownership of each of Data I/O’s subsidiaries:

Name of Subsidiary |  | State or Jurisdiction of Organization |  | Percentage of Voting Securities Owned |
Data I/O International, Inc. |  | Washington |  |  | 100 | %
RTD, Inc. |  | Washington |  |  | 100 | %
Data I/O FSC International, Inc. |  | Territory of Guam |  |  | 100 | %
Data I/O GmbH |  | Germany |  |  | 100 | %
Data I/O Electronics (Shanghai) Co., Ltd. |  | China |  |  | 100 | %