EXHIBIT 21.1
SUBSIDIARIES OF FEDERAL DATA CORPORATION
State of Doing
Subsidiaries Incorporation Business Name
-------------------------- --------------------- ------------------
FDCT Corp. Delaware FDCT Corp.
FDC Technologies, Inc. Delaware FDC Technologies, Inc.
NYMA, Inc. Maryland NYMA, Inc.
Sylvest Management Sylvest Management
Systems Corporation Maryland Systems Corporation
R.O.W. Sciences, Inc. Delaware R.O.W. Sciences, Inc.
Technical and Management Technical and Management
Assistance, Inc. New Jersey Assistance, Inc.
