QuickLinks -- Click here to rapidly navigate through this document

Exhibit 21


List of Subsidiaries
Rollins, Inc.

        The following list sets forth the subsidiaries of Rollins, Inc. as of February 26, 2002. Each corporation whose name is indented is a wholly-owned subsidiary of the corporation next above which is not indented.

Corporation Name
    State/Country of Incorporation
Orkin Exterminating Company, Inc.     Delaware    
 
Orkin Systems, Inc.
Dettlebach Pesticide Corporation
Kinro Advertising Company
Orkin Expansion, Inc.
Orkin International, Inc.

 

 

 

Delaware
Georgia
Delaware
Delaware
Delaware

 
    PCO Services, Inc.         Canada

Rollins Continental, Inc.

 

 

New York

 

 

Rollins Expansion, Inc.

 

 

Delaware

 

 
 
Red Diamond Insurance Co.

 

 

 

Vermont

 

Rollins Supply, Inc.

 

 

Delaware

 

 



QuickLinks

List of Subsidiaries Rollins, Inc.