EXHIBIT 22.1 SUBSIDIARIES OF ZITEL CORPORATION 1. Zitel International Corporation 47211 Bayside Parkway Fremont, CA 94538-6517 2. Zitel SARL 47211 Bayside Parkway Fremont, CA 94538-6517 3. Zitel Export Corporation 47211 Bayside Parkway Fremont, CA 94538-6517 4. Performance & Modeling, Inc. 47211 Bayside Parkway Fremont, CA 94538-6517 5. CHI Systems, Inc. 47211 Bayside Parkway Fremont, CA 94538-6517 Page 42