    <SEC-DOCUMENT>0000950170-25-033061-index.html : 20250305
    <SEC-HEADER>0000950170-25-033061.hdr.sgml : 20250305
    <ACCEPTANCE-DATETIME>20250305063022
    ACCESSION NUMBER:		0000950170-25-033061
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		72
    CONFORMED PERIOD OF REPORT:	20250415
    FILED AS OF DATE:		20250305
    DATE AS OF CHANGE:		20250305

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			PARSONS CORP
    		CENTRAL INDEX KEY:			0000275880
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER INTEGRATED SYSTEMS DESIGN [7373]
    		ORGANIZATION NAME:           	06 Technology
    		IRS NUMBER:				953232481
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-07782
    		FILM NUMBER:		25708707

    	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>DEF 14A
    <SEQUENCE>1
    <FILENAME>psn-20250303.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: psn-20250303.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>img92563593_0.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: img92563593_0.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>img92563593_1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: img92563593_1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>img92563593_2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: img92563593_2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>img92563593_3.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: img92563593_3.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>img92563593_4.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: img92563593_4.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>img92563593_5.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: img92563593_5.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>img92563593_6.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: img92563593_6.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>img92563593_7.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: img92563593_7.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>img92563593_8.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: img92563593_8.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>img92563593_9.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: img92563593_9.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>img92563593_10.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: img92563593_10.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>img92563593_11.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: img92563593_11.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>img92563593_12.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: img92563593_12.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>img92563593_13.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: img92563593_13.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>img92563593_14.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: img92563593_14.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>img92563593_15.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: img92563593_15.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>img92563593_16.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: img92563593_16.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>img92563593_17.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 19 - file: img92563593_17.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>img92563593_18.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 20 - file: img92563593_18.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>img92563593_19.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 21 - file: img92563593_19.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>img92563593_20.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 22 - file: img92563593_20.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>img92563593_21.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 23 - file: img92563593_21.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>img92563593_22.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 24 - file: img92563593_22.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>img92563593_23.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 25 - file: img92563593_23.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>img92563593_24.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 26 - file: img92563593_24.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>img92563593_25.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 27 - file: img92563593_25.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>img92563593_26.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 28 - file: img92563593_26.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>img92563593_27.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 29 - file: img92563593_27.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>img92563593_28.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 30 - file: img92563593_28.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>31
    <FILENAME>img92563593_29.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 31 - file: img92563593_29.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>img92563593_30.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 32 - file: img92563593_30.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>33
    <FILENAME>img92563593_31.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 33 - file: img92563593_31.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>34
    <FILENAME>img92563593_32.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 34 - file: img92563593_32.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>35
    <FILENAME>img92563593_33.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 35 - file: img92563593_33.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>36
    <FILENAME>img92563593_34.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 36 - file: img92563593_34.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>37
    <FILENAME>img92563593_35.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 37 - file: img92563593_35.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>38
    <FILENAME>img92563593_36.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 38 - file: img92563593_36.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>39
    <FILENAME>img92563593_37.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 39 - file: img92563593_37.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>40
    <FILENAME>img92563593_38.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 40 - file: img92563593_38.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>41
    <FILENAME>img92563593_39.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 41 - file: img92563593_39.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>42
    <FILENAME>img92563593_40.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 42 - file: img92563593_40.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>43
    <FILENAME>img92563593_41.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 43 - file: img92563593_41.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>44
    <FILENAME>img92563593_42.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 44 - file: img92563593_42.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>45
    <FILENAME>img92563593_43.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 45 - file: img92563593_43.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>46
    <FILENAME>img92563593_44.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 46 - file: img92563593_44.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>47
    <FILENAME>img92563593_45.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 47 - file: img92563593_45.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>48
    <FILENAME>img92563593_46.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 48 - file: img92563593_46.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>49
    <FILENAME>img92563593_47.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 49 - file: img92563593_47.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>50
    <FILENAME>img92563593_48.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 50 - file: img92563593_48.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>51
    <FILENAME>img92563593_49.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 51 - file: img92563593_49.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>52
    <FILENAME>img92563593_50.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 52 - file: img92563593_50.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>53
    <FILENAME>img92563593_51.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 53 - file: img92563593_51.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>54
    <FILENAME>img92563593_52.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 54 - file: img92563593_52.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>55
    <FILENAME>img92563593_53.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 55 - file: img92563593_53.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>56
    <FILENAME>img92563593_54.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 56 - file: img92563593_54.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>57
    <FILENAME>img92563593_55.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 57 - file: img92563593_55.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>58
    <FILENAME>img92563593_56.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 58 - file: img92563593_56.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>59
    <FILENAME>img92563593_57.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 59 - file: img92563593_57.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>60
    <FILENAME>img92563593_58.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 60 - file: img92563593_58.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>61
    <FILENAME>img92563593_59.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 61 - file: img92563593_59.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>62
    <FILENAME>img92563593_60.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 62 - file: img92563593_60.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>63
    <FILENAME>psn-20250303.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT
    <TEXT>
    Document 63 - file: psn-20250303.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>65
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 65 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>66
    <FILENAME>R2.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 66 - file: R2.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>67
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 67 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>68
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 68 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>70
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 70 - file: FilingSummary.html

    Document 70 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>72
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 72 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>73
    <FILENAME>0000950170-25-033061-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 73 - file: 0000950170-25-033061-xbrl.zip

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>74
    <FILENAME>psn-20250303_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 74 - file: psn-20250303_htm.html

    Document 74 - RAW XML: psn-20250303_htm.xml

    </DOCUMENT>
    </SEC-DOCUMENT>