EX-21.1 6 a2222183zex-21_1.htm EX-21.1
QuickLinks -- Click here to rapidly navigate through this document

EXHIBIT 21.1

AECOM Global, Inc., a Delaware Corporation
AECOM, Inc., a Delaware Corporation
AECOM Technical Services, Inc., a California Corporation
AECOM USA, Inc., a New York Corporation
National Security Programs, Inc., a Virginia Corporation
Tishman Construction Corporation, a Delaware Corporation

QuickLinks

EXHIBIT 21.1