EX-21.1 17 psn-ex211_13.htm EX-21.1

Exhibit 21.1

LIST OF SUBSIDIARIES OF THE REGISTRANT

Subsidiary | Registered Jurisdiction
3D/International, Inc. | Texas
Argotek, Inc. | Virginia
Bonifica S.P.A. | Italy
Braxton Science & Technology Group, LLC | Colorado
Braxton Technologies, LLC | Colorado
Bright Star For Engineering Services LLC | Iraq, Republic of
BSX Parsons LLC | Delaware
Centerra-Parsons Pacific, LLC | Florida
Chas. T. Main, Inc. | Massachusetts
Checkmark Vehicle Safety Services, Inc. | Delaware
Command Engineering International Limited | Ontario
De Leuw, Cather International Inc. | Illinois
De Leuw, Cather International Limited | Delaware
Delcan Corporation | Illinois
Delcan Technologies, Inc. | Georgia
DZSP 21 LLC | Delaware
EXi Parsons Telecom LLC | Delaware
Finley McNary Engineers, Inc. | Florida
First Defense Services Pte. Ltd. | Singapore
Fourth Dimension Engineering LLC | Delaware
Global Response Services LLC | Delaware
Holding S.r.L. | Italy
Ingenicomm, LLC | Virginia
Intelligent Software Solutions Global Limited | United Kingdom
Marigold Infrastructure Partners Inc. | Alberta
Nateng Technology Group, Inc. | Illinois
NDP, LLC | Colorado
OGS Holdings, Inc. | Delaware
OGSystems, LLC | Virginia
PARCAN, Inc. | Delaware
Parmetek, S.A. De C.V. | Mexico
Parsons 401Hot GP Inc. | Ontario
Parsons Architectural Services of Illinois Inc. | Illinois
Parsons Architecture of Florida Inc. | Florida
Parsons Architecture of New Jersey P.C. | New Jersey
Parsons Canada Holdings, LLC | Delaware
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 Infraestrutura Sociedade Simples Ltda. | Brazil
Parsons Delcan Inc. | Delaware
Parsons do Brasil Construcoes Ltda. | Brazil
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 Evergreene, LLC | 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 Ingeniería, S. de R.L. de C.V | Mexico
Parsons Inspection & Maintenance Corporation | Delaware
Parsons International & Company LLC | Sultanate of Oman
Parsons International Limited | Nevada
Parsons International Limited | Delaware
Parsons International Limited (L.L.C.), a Limited Liability Company | Egypt, Arab Republic of
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 MIP Inc. | Alberta
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 Savannah Construction Company | South Carolina
Parsons Savannah Services Company | Delaware
Parsons Secure Solutions Inc. | Virginia
Parsons Services Company | Texas
Parsons SGTP GP Holdings Inc. | Federally Chartered
Parsons Technical Services Inc. | Delaware
Parsons Technical Services International Inc. | Texas
Parsons Technical Support Inc. | Delaware
Parsons Technologies, LLC | Delaware
Parsons Transportation Architectural Services 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 Turkey Ulastirma Altyapi Sanayi ve Ticaret Limited Sirketi | Turkey
Parsons Water & Infrastructure Inc. | Delaware
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
PTSI Managed Services Inc. | California
QRC, LLC | Virginia
Research and Development Solutions, LLC | Delaware
RMP Infrastructure Holdings Inc. | Federally Chartered
S&P Geology Services P.C. | New York
S.I.P., Inc. | Delaware
Saudi Arabian Parsons Limited | Saudi Arabia
Savannah River Mission Completion Partners LLC | Delaware
SGTP Highway Bypass GP Inc. | Saskatchewan
SGTP Highway Bypass Limited Partnership | Saskatchewan
Solidyn Solutions, LLC | Delaware
Space Ground System Solutions, Inc. | Florida
Steinman Boynton Gronquist & Birdsall | New York
Steinman Inc. | New York
T.J. Cross Engineers, Inc. | California
Tailored Engineering Deployments, LLC | Maryland
The C. T. Main Corporation | Massachusetts
The De Leuw Cather Group Ltd. | Ontario
The Ralph M. Parsons Company | Nevada
Wholesale Supply Co., Inc. | Nevada
Williams Electric Co., Inc. | Florida
3D/International, Inc. | Texas
Argotek, Inc. | Virginia
Bonifica S.P.A. | Italy
Braxton Science & Technology Group, LLC | Colorado
Braxton Technologies, LLC | Colorado