EX-21.1 15 d625480dex211.htm EX-21.1

Exhibit 21.1

LIST OF SUBSIDIARIES OF THE REGISTRANT

Subsidiary |  | Registered Jurisdiction
3D/lnternational, Inc. |  | Texas
Argotek, Inc. |  | Virginia
Barton-Aschman Associates, Inc. of Ohio |  | Ohio
Bonifica S.P.A. |  | Italy
Bright Star For Engineering Services LLC |  | Iraq, Republic of
BSX Parsons LLC |  | Delaware
Centerra-Parsons Pacific, LLC |  | Florida
Chas. T. Main of Louisiana, Inc. |  | Louisiana
Chas. T. Main, Inc. |  | Massachusetts
Checkmark Vehicle Safety Services, Inc. |  | Delaware
De Leuw, Cather & Company |  | Illinois
De Leuw, Cather International Inc. |  | Illinois
De Leuw, Cather International Limited |  | Delaware
Delcan Corporation |  | Illinois
Delcan Ltée |  | Quebec
Delcan Professional Corporation |  | Michigan
Delcan Technologies, Inc. |  | Georgia
Delcather Limited Inc. |  | Illinois
DZSP 21 LLC |  | Delaware
EXi Parsons Telecom Inc. |  | Delaware
EXi Parsons Telecom LLC |  | Delaware
Finley McNary Engineers, Inc. |  | Florida
Fourth Dimension Engineering LLC |  | Delaware
Global Response Services LLC |  | Delaware
H . E. Hennigh, Inc. |  | Georgia
Holding S.r.L. |  | Italy
International Aviation Consultants, L.L.C. |  | Georgia
KP Leasing Company |  | Nebraska
Nateng Technology Group, Inc. |  | Illinois
OGS Holdings, Inc. |  | Delaware
OGSystems, LLC |  | Virginia
PARCAN, Inc. |  | Delaware
Parfinco, Inc. |  | California
Parsons Advanced Technologies Inc. |  | Delaware
Parsons Architectural Services of Illinois Inc. |  | Illinois
Parsons Architecture of Florida Inc. |  | Florida
Parsons Architecture of New Jersey P.C. |  | New Jersey
Parsons China Inc. |  | Nevada
Parsons Commercial Services Inc. |  | California
Parsons Construction Craft Services Inc. |  | Texas
Parsons Construction Group Inc. |  | Delaware
Parsons Constructors & Fabricators Inc. |  | Delaware
Parsons Constructors Inc. |  | Delaware
Parsons Corporation |  | Delaware
Parsons CTMain Projetos de lnfraestrutura Sociedade Simples Ltda. |  | Brazil
Parsons Delcan Inc. |  | Delaware

Parsons Engineering Inc. of Michigan |  | Michigan
Parsons Engineering Limited |  | Cork
Parsons Engineering of New York, Inc. |  | New York
Parsons Engineering Science International, Inc. |  | Delaware
Parsons Engineering Science, Inc. |  | California
Parsons Enterprises, Inc. |  | Delaware
Parsons Environment & Infrastructure Group Inc. |  | Delaware
Parsons Federal Construction Inc. |  | California
Parsons Global Services, Ltd. |  | Cayman Islands (B.W.I.)
Parsons Government Services Inc. |  | Nevada
Parsons Government Services International Inc. |  | Delaware
Parsons Government Support Services Inc. |  | Texas
Parsons Group International Limited |  | United Kingdom
Parsons Hanford Fabricators Inc. |  | Washington
Parsons Inc. |  | Federally Chartered
Parsons Infrastructure & Technology Group Inc. of Ohio |  | Ohio
Parsons Infrastructure & Technology Group of Illinois P.C. |  | Illinois
Parsons Infrastructure & Technology Group of Michigan Inc. |  | Nevada
Parsons Infrastructure & Technology Group of New York Inc. |  | New York
Parsons Inspection & Maintenance Corporation |  | Delaware
Parsons International Limited |  | Delaware
Parsons International Limited |  | Nevada
Parsons Investments Corp. |  | Delaware
Parsons Italia S.r.L. |  | Italy
Parsons Main of New York, Inc. |  | New York
Parsons Main, Inc. |  | Massachusetts
Parsons Middle East Corporation |  | Nevada
Parsons Middle East Ltd. |  | Delaware
Parsons of North Carolina Inc. |  | North Carolina
Parsons of Puerto Rico Professional Engineers, P.S.C. |  | Puerto Rico
Parsons Overseas Company |  | Nevada
Parsons Overseas Limited Inc. |  | Delaware
Parsons PATCO Inc. |  | Delaware
Parsons Professional Corporation |  | District of Columbia
Parsons Professional Services Inc. |  | Ontario
Parsons Project Services, Inc. |  | California
Parsons RCI Inc. |  | Washington
Parsons S.I.P. Inc. |  | Delaware
Parsons Savannah Construction Company |  | South Carolina
Parsons Savannah Services Company |  | Delaware
Parsons Secure Solutions Inc. |  | Virginia
Parsons Services Company |  | Texas
Parsons SGTP GP Holdings Inc. |  | Ontario
Parsons Technical Services Inc. |  | Delaware
Parsons Technical Services International Inc. |  | Texas
Parsons Technical Support Inc. |  | Delaware
Parsons Technologies, LLC |  | Delaware
Parsons Telecommunication Services Inc. |  | Delaware
Parsons Transportation Architectural Services LLC |  | Delaware
Parsons Transportation Concessionaires LLC |  | Delaware
Parsons Transportation Group Inc. |  | Illinois

Parsons Transportation Group Inc. of Michigan |  | Michigan
Parsons Transportation Group Inc. of Virginia |  | Virginia
Parsons Transportation Group of New York, Inc. |  | New York
Parsons Transportation Group, Professional Corporation |  | District of Columbia
Parsons Water & Infrastructure Inc. |  | Delaware
Parsons Water Resources, Inc. |  | California
Parsons-Granite LLC |  | Delaware
Parsons-Jurden International Corporation |  | Nevada
Parsons-Versar LLC |  | Delaware
Partnership for Temporary Housing LLC |  | Delaware
Polaris Alpha Advanced Systems, Inc. |  | Virginia
Polaris Alpha Cyber and Sigint, LLC |  | Delaware
Polaris Alpha Cyber Technologies, LLC |  | Delaware
Polaris Alpha Equity Holdings, LLC |  | Delaware
Polaris Alpha Holdings Parent, LLC |  | Delaware
Polaris Alpha, LLC |  | Delaware
PTG Construction Services Company |  | Delaware
PTSI Managed Services Inc. |  | California
Research and Development Solutions, LLC |  | Delaware
RMP Infrastructure Holdings Inc. |  | Ontario
Saudi Arabian Parsons Limited |  | Saudi Arabia
S&P Geology Services P.C. |  | New York
S.I.P. Engineering, Inc. |  | Delaware
S.I.P., Inc . |  | Delaware
SGTP Highway Bypass GP Inc. |  | Saskatchewan
SGTP Highway Bypass Limited Partnership |  | Saskatchewan
Solidyn Solutions, LLC |  | Delaware
Steinman Boynton Gronquist & Birdsall |  | New York
Steinman Boynton Gronquist & Birdsall Inc. |  | New Jersey
Steinman Inc. |  | New York
T. J. Cross Engineers, Inc. |  | California
The C. T. Main Corporation |  | Massachusetts
The Ralph M. Parsons Company |  | Nevada
Wholesale Supply Co., Inc. |  | Nevada
Williams Electric Co., Inc. |  | Florida