EXHIBIT 21.1

LIST OF SUBSIDIARIES

Unica Corporation Limited (English Limited Company)
100% owned by Unica Corporation

Unica Corporation Software Pte Limited (Singapore Limited Company)
100% owned by Unica Corporation

Unica France SAS (French SAS)
100% owned by Unica Corporation

Unica, LLC. (Delaware limited liability company)
100% owned by Unica Corporation

Unica, L.P. (Bermuda limited partnership)
Unica Corporation is limited partner and Unica, LLC is general partner

Unica Softtech Systems India Private Limited (India private company) 99% of shares held by Reid Finance Limited for the benefit of Unica,
L.P., 0.10% held by Unica Corporation Software Pte Limited, and 0.10% held by Manish Munot

Unica Securities Corporation (Massachusetts securities corporation)
100% owned by Unica Corporation

Unica Australia PTY Limited (Australia Limited Company)
100% owned by Unica Corporation

Unica GmbH
100% owned by Unica Corporation