Exhibit 21.1 TRIDEX CORPORATION EXHIBIT 21.1 SUBSIDIARIES OF TRIDEX CORPORATION Name Jurisdiction of Incorporation Owner Percentage Owned - -------------------------------------- ----------------------------------------- ------------- --------------------- Allu Realty Trust* Massachusetts Tridex 100% RIL Corporation* Connecticut Tridex 100% Progressive Software, Inc. North Carolina Tridex 100% Retail Resource Solutions Limited United Kingdom Tridex 100% *Inactive