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Exhibit 21.1
SUBSIDIARIES OF LEONARDO DRS, INC.
Company NameState/Country of Incorporation
3083683 Nova Scotia LimitedNova Scotia, Canada
Daylight Defense, LLCCA
Daylight Solutions, Inc.CA
DRS Advanced ISR, LLCDE
DRS Defense Solutions, LLCDE
DRS Environmental Systems, Inc.DE
DRS Homeland Security Solutions, Inc.DE
DRS International, Inc.DE
DRS Naval Power Systems, Inc.DE
DRS Network & Imaging Systems, LLCDE
DRS Signal Solutions, Inc.DE
DRS Surveillance Support Systems, Inc.DE
DRS Sustainment Systems, Inc.DE
DRS Systems Management, LLCDE
DRS Systems, Inc.DE
DRS Technologies Canada, Inc.DE
DRS Technologies Canada, Ltd.Ontario, Canada
DRS Training & Control Systems, LLCFL
DRS Unmanned Technologies, Inc.DE
Engineered Coil CompanyMO
Engineered Support Systems, Inc.MO
ESSI Resources, LLCKY
Laurel Technologies PartnershipDE
Oto Melara North America, LLCDE
Pivotal Power Inc.Nova Scotia, Canada
DRS RADA Technologies Ltd.Israel
RADA Innovations LLCDE
RADA Sensors Inc.DE
RADA Technologies LLCDE


Tech-Sym, LLCNV
T-S Holding CorporationTX