    <SEC-DOCUMENT>0001564590-21-012320-index.html : 20210311
    <SEC-HEADER>0001564590-21-012320.hdr.sgml : 20210311
    <ACCEPTANCE-DATETIME>20210311114110
    ACCESSION NUMBER:		0001564590-21-012320
    CONFORMED SUBMISSION TYPE:	DEFR14A
    PUBLIC DOCUMENT COUNT:		56
    FILED AS OF DATE:		20210311
    DATE AS OF CHANGE:		20210311

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			PARSONS CORP
    		CENTRAL INDEX KEY:			0000275880
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER INTEGRATED SYSTEMS DESIGN [7373]
    		IRS NUMBER:				953232481
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFR14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-07782
    		FILM NUMBER:		21732403

    	BUSINESS ADDRESS:
    		STREET 1:		5875 TRINITY PKWY #300
    		CITY:			CENTREVILLE
    		STATE:			VA
    		ZIP:			20120
    		BUSINESS PHONE:		703-988-8500

    	MAIL ADDRESS:
    		STREET 1:		5875 TRINITY PKWY #300
    		CITY:			CENTREVILLE
    		STATE:			VA
    		ZIP:			20120

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	PARSON CORP
    		DATE OF NAME CHANGE:	20000101
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFR14A
    <SEQUENCE>1
    <FILENAME>psn-defr14a_20210420.htm
    <DESCRIPTION>DEFR14A
    <TEXT>
    Document 1 - file: psn-defr14a_20210420.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>gdg5xd54xup4000024.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: gdg5xd54xup4000024.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>gdg5xd54xup4000004.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: gdg5xd54xup4000004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>gdg5xd54xup4000031.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: gdg5xd54xup4000031.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>gdg5xd54xup4000022.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: gdg5xd54xup4000022.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>gdg5xd54xup4000049.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: gdg5xd54xup4000049.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>gdg5xd54xup4000010.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: gdg5xd54xup4000010.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>gdg5xd54xup4000008.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: gdg5xd54xup4000008.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>gdg5xd54xup4000055.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: gdg5xd54xup4000055.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>gdg5xd54xup4000047.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: gdg5xd54xup4000047.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>gdg5xd54xup4000042.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: gdg5xd54xup4000042.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>gdg5xd54xup4000032.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: gdg5xd54xup4000032.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>gdg5xd54xup4000054.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: gdg5xd54xup4000054.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>gdg5xd54xup4000038.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: gdg5xd54xup4000038.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>gdg5xd54xup4000023.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: gdg5xd54xup4000023.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>gdg5xd54xup4000011.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: gdg5xd54xup4000011.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>gdg5xd54xup4000026.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: gdg5xd54xup4000026.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>gdg5xd54xup4000041.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: gdg5xd54xup4000041.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>gdg5xd54xup4000037.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 19 - file: gdg5xd54xup4000037.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>gdg5xd54xup4000014.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 20 - file: gdg5xd54xup4000014.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>gdg5xd54xup4000003.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 21 - file: gdg5xd54xup4000003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>gdg5xd54xup4000018.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 22 - file: gdg5xd54xup4000018.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>gdg5xd54xup4000017.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 23 - file: gdg5xd54xup4000017.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>gdg5xd54xup4000021.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 24 - file: gdg5xd54xup4000021.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>gdg5xd54xup4000019.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 25 - file: gdg5xd54xup4000019.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>gdg5xd54xup4000033.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 26 - file: gdg5xd54xup4000033.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>gdg5xd54xup4000006.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 27 - file: gdg5xd54xup4000006.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>gdg5xd54xup4000046.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 28 - file: gdg5xd54xup4000046.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>gdg5xd54xup4000028.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 29 - file: gdg5xd54xup4000028.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>gdg5xd54xup4000007.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 30 - file: gdg5xd54xup4000007.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>31
    <FILENAME>gdg5xd54xup4000002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 31 - file: gdg5xd54xup4000002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>gdg5xd54xup4000020.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 32 - file: gdg5xd54xup4000020.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>33
    <FILENAME>gdg5xd54xup4000039.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 33 - file: gdg5xd54xup4000039.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>34
    <FILENAME>gdg5xd54xup4000051.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 34 - file: gdg5xd54xup4000051.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>35
    <FILENAME>gdg5xd54xup4000025.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 35 - file: gdg5xd54xup4000025.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>36
    <FILENAME>gdg5xd54xup4000053.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 36 - file: gdg5xd54xup4000053.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>37
    <FILENAME>gdg5xd54xup4000029.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 37 - file: gdg5xd54xup4000029.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>38
    <FILENAME>gdg5xd54xup4000043.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 38 - file: gdg5xd54xup4000043.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>39
    <FILENAME>gdg5xd54xup4000045.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 39 - file: gdg5xd54xup4000045.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>40
    <FILENAME>gdg5xd54xup4000035.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 40 - file: gdg5xd54xup4000035.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>41
    <FILENAME>gdg5xd54xup4000001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 41 - file: gdg5xd54xup4000001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>42
    <FILENAME>gdg5xd54xup4000013.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 42 - file: gdg5xd54xup4000013.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>43
    <FILENAME>gdg5xd54xup4000034.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 43 - file: gdg5xd54xup4000034.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>44
    <FILENAME>gdg5xd54xup4000030.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 44 - file: gdg5xd54xup4000030.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>45
    <FILENAME>gdg5xd54xup4000040.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 45 - file: gdg5xd54xup4000040.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>46
    <FILENAME>gdg5xd54xup4000050.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 46 - file: gdg5xd54xup4000050.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>47
    <FILENAME>gdg5xd54xup4000009.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 47 - file: gdg5xd54xup4000009.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>48
    <FILENAME>gdg5xd54xup4000005.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 48 - file: gdg5xd54xup4000005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>49
    <FILENAME>gdg5xd54xup4000015.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 49 - file: gdg5xd54xup4000015.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>50
    <FILENAME>gdg5xd54xup4000048.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 50 - file: gdg5xd54xup4000048.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>51
    <FILENAME>gdg5xd54xup4000012.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 51 - file: gdg5xd54xup4000012.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>52
    <FILENAME>gdg5xd54xup4000044.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 52 - file: gdg5xd54xup4000044.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>53
    <FILENAME>gdg5xd54xup4000052.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 53 - file: gdg5xd54xup4000052.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>54
    <FILENAME>gdg5xd54xup4000036.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 54 - file: gdg5xd54xup4000036.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>55
    <FILENAME>gdg5xd54xup4000027.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 55 - file: gdg5xd54xup4000027.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>56
    <FILENAME>gdg5xd54xup4000016.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 56 - file: gdg5xd54xup4000016.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>