Top 100 Contractors in PSC A: Research and Development, FY2025

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 43% of FY2025 PSC A contract dollars

Ranking facts

Contract obligations
$71,099,255,987 Net of deobligations, by contracts coded PSC A or a code under it
Contractors
4,662 Parent companies with an obligation
Largest contractor
Lockheed Martin Corporation $7.86 billion, 10.5% of obligations
Data as of

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank Contractor Net obligations Share Trend
1
Lockheed Martin Corporation 36 awardees
Top agencies
$7,858,740,713
Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2
Northrop Grumman Systems Corporation 51 awardees
Top agencies
$4,904,879,428
Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #2 in FY2024; unchanged since FY2024.
3
Lawrence Livermore National Security, LLC
Top agencies
$3,625,335,964
Rank history: #3 in FY2021, #3 in FY2022, #5 in FY2023 and #5 in FY2024; up 2 since FY2024.
4
Analytic Services Inc. Through Advanced Technology International
Top agencies
$3,096,829,491
Rank history: #15 in FY2021, #14 in FY2022, #3 in FY2023 and #8 in FY2024; up 4 since FY2024.
5
RTX Corporation 44 awardees, including Raytheon Company, RTX BBN Technologies, Inc. and Range Generation Next LLC
Top agencies
$2,525,798,552
Rank history: #6 in FY2021, #6 in FY2022, #4 in FY2023 and #6 in FY2024; up 1 since FY2024.
6
The Boeing Company 21 awardees, including Millennium Space Systems, Inc. and HRL Laboratories, LLC
Top agencies
$2,490,338,720
Rank history: #5 in FY2021, #5 in FY2022, #7 in FY2023 and #4 in FY2024; down 2 since FY2024.
7
California Institute of Technology 2 awardees
Top agencies
$2,385,374,349
Rank history: #4 in FY2021, #4 in FY2022, #6 in FY2023 and #7 in FY2024; unchanged since FY2024.
8
Johns Hopkins University 3 awardees, including The Johns Hopkins University Applied Physics Laboratory LLC
Top agencies
$1,994,999,252
Rank history: not on the FY2021–FY2024 lists; new.
9
Massachusetts Institute of Technology 2 awardees
Top agencies
$1,477,698,011
Rank history: #10 in FY2021, #9 in FY2022, #11 in FY2023 and #9 in FY2024; unchanged since FY2024.
10
National Security Technology Accelerator Inc.
Top agencies
$1,409,609,516
Rank history: #26 in FY2021, #20 in FY2022, #13 in FY2023 and #14 in FY2024; up 4 since FY2024.
11
Leidos Holdings, Inc. 16 awardees, including Leidos Biomedical Research Inc., Leidos, Inc. and Kudu Dynamics LLC
Top agencies
$1,247,894,391
Rank history: #8 in FY2021, #10 in FY2022, #10 in FY2023 and #11 in FY2024; unchanged since FY2024.
12
BAE Systems 16 awardees, including BAE Systems Land and Armaments L.P., BAE Systems Space & Mission Systems Inc. and BAE Systems Information & Electronic Systems Integration Inc.
Top agencies
$1,200,416,896
Rank history: #13 in FY2021, #19 in FY2022, #20 in FY2023 and #20 in FY2024; up 8 since FY2024.
13
Booz Allen Hamilton Holding Corporation 5 awardees, including Booz Allen Hamilton Inc., Everwatch Solutions Inc. and Ultra Electronics Advanced Tactical Systems Inc.
Top agencies
$1,183,649,316
Rank history: #14 in FY2021, #12 in FY2022, #15 in FY2023 and #12 in FY2024; down 1 since FY2024.
14
Textron Inc. 3 awardees, including Bell Textron Inc. and Textron Systems Corporation
Top agencies
$1,164,346,915
Rank history: #34 in FY2021, #38 in FY2022, #17 in FY2023 and #15 in FY2024; up 1 since FY2024.
15
The Mitre Corporation 2 awardees
Top agencies
$977,545,043
Rank history: #7 in FY2021, #7 in FY2022, #9 in FY2023 and #13 in FY2024; down 2 since FY2024.
16
L3Harris Technologies, Inc. 35 awardees, including Aerojet Rocketdyne of DE, Inc., L3 Technologies, Inc. and L3Harris Technologies Integrated Systems L.P.
Top agencies
$904,856,623
Rank history: #22 in FY2021, #16 in FY2022, #24 in FY2023 and #17 in FY2024; up 1 since FY2024.
17
Blue Origin Washington, LLC 2 awardees, including Blue Origin, LLC
Top agencies
$834,915,913
Rank history: not on the FY2021–FY2022 lists, #27 in FY2023 and #23 in FY2024; up 6 since FY2024.
18
Science Applications International Corporation
Top agencies
$818,625,681
Rank history: #12 in FY2021, #13 in FY2022, #14 in FY2023 and #16 in FY2024; down 2 since FY2024.
19
General Dynamics Corporation 28 awardees, including General Dynamics Mission Systems, Inc., General Dynamics Land Systems Inc. and General Dynamics Information Technology, Inc.
Top agencies
$800,439,781
Rank history: #19 in FY2021, #25 in FY2022, #26 in FY2023 and #25 in FY2024; up 6 since FY2024.
20
KBR Wyle Services LLC 7 awardees, including Dependable Global Solutions, LLC
Top agencies
$743,987,345
Rank history: not on the FY2021–FY2023 lists and #22 in FY2024; up 2 since FY2024.
21
Huntington Ingalls Industries, Inc. 5 awardees, including HII Mission Technologies Corp, HII Unmanned Systems, Inc. and HII Technical Solutions Corporation
Top agencies
$645,261,362
Rank history: not on the FY2021 list, #23 in FY2022, not on the FY2023 list and #19 in FY2024; down 2 since FY2024.
22
Amentum Holdings, Inc. 13 awardees, including Amentum Technology, Inc., Amentum Services, Inc. and The Keyw Corporation
Top agencies
$619,293,199
Rank history: not on the FY2021–FY2024 lists; up 181 since FY2024.
23
CACI International Inc. 7 awardees, including Caci, Inc. - Federal, Caci Technologies, LLC and LGS Innovations LLC
Top agencies
$591,839,944
Rank history: #39 in FY2021, #40 in FY2022, #28 in FY2023 and #32 in FY2024; up 9 since FY2024.
24
Georgia TECH Research Corp 2 awardees, including Georgia TECH Applied Research Corp
Top agencies
$476,580,749
Rank history: #20 in FY2021, #18 in FY2022, #23 in FY2023 and not on the FY2024 list; up 87 since FY2024.
25
Space Exploration Technologies Corp. 2 awardees
Top agencies
$430,900,770
Rank history: #17 in FY2021, #11 in FY2022, #12 in FY2023 and #18 in FY2024; down 7 since FY2024.
26
Mantech Tsg-2 Joint Venture
Top agencies
$372,295,645
Rank history: #30 in FY2021, #33 in FY2022, #39 in FY2023 and #24 in FY2024; down 2 since FY2024.
27
Sierra Nevada Company, LLC 4 awardees, including Sierra Space Corp and Kutta Technologies, LLC
Top agencies
$366,601,902
Rank history: not on the FY2021–FY2023 lists and #31 in FY2024; up 4 since FY2024.
28
General Electric Company 9 awardees, including GE Energy Power Conversion Naval Systems Inc., Innoveering LLC and GE Aviation Systems LLC
Top agencies
$354,847,859
Rank history: #29 in FY2021, #30 in FY2022, #29 in FY2023 and #21 in FY2024; down 7 since FY2024.
29
The Pennsylvania State University 2 awardees
Top agencies
$329,683,498
Rank history: #36 in FY2021, #31 in FY2022, #36 in FY2023 and #34 in FY2024; up 5 since FY2024.
30
Battelle Memorial Institute 3 awardees, including Battelle National Biodefense Institute, LLC
Top agencies
$312,575,403
Rank history: #31 in FY2021, #21 in FY2022, #22 in FY2023 and #29 in FY2024; down 1 since FY2024.
31
Association of Universities for Research In Astronomy, Inc. 2 awardees
Top agencies
$310,140,294
Rank history: #52 in FY2021, #29 in FY2022, #46 in FY2023 and not on the FY2024 list; up 366 since FY2024.
32
Torch Technologies Inc. 2 awardees
Top agencies
$305,179,901
Rank history: #54 in FY2021, #24 in FY2022, #34 in FY2023 and #38 in FY2024; up 6 since FY2024.
33
Battelle Savannah River Alliance, LLC
Top agencies
$302,244,892
Rank history: #41 in FY2021, not on the FY2022–FY2023 lists and #39 in FY2024; up 6 since FY2024.
34
York Space Systems LLC
Top agencies
$285,133,338
Rank history: not on the FY2021 list, #82 in FY2022, #43 in FY2023 and #26 in FY2024; down 8 since FY2024.
35
DCS Corporation 2 awardees
Top agencies
$275,654,478
Rank history: #55 in FY2021, #76 in FY2022, #64 in FY2023 and #45 in FY2024; up 10 since FY2024.
36
Bechtel Corp Through Bechtel National, Inc.
Top agencies
$272,595,908
Rank history: #28 in FY2021, #26 in FY2022, #18 in FY2023 and #27 in FY2024; down 9 since FY2024.
37
Palantir Technologies Inc. Through Palantir USG Inc.
Top agencies
$272,286,095
Rank history: not on the FY2021–FY2023 lists and #73 in FY2024; up 36 since FY2024.
38
Modern Technology Solutions, Inc.
Top agencies
$257,252,469
Rank history: #100 in FY2021, #57 in FY2022, #55 in FY2023 and #57 in FY2024; up 19 since FY2024.
39
Anduril Industries Inc. 3 awardees, including Exoanalytic Solutions Inc.
Top agencies
$256,922,731
Rank history: not on the FY2021–FY2023 lists and #64 in FY2024; up 25 since FY2024.
40
University System of Maryland 6 awardees, including University of Maryland, College Park, University of Maryland Baltimore County and University of Maryland, Baltimore
Top agencies
$240,808,824
Rank history: #65 in FY2021, #64 in FY2022, #60 in FY2023 and not on the FY2024 list; up 214 since FY2024.
41
Institute for Defense Analyses
Top agencies
$240,208,929
Rank history: not on the FY2021–FY2024 lists; up 100 since FY2024.
42
Applied Research Associates, Inc.
Top agencies
$234,556,556
Rank history: #37 in FY2021, #34 in FY2022, #37 in FY2023 and #40 in FY2024; down 2 since FY2024.
43
Kbr, Inc. 2 awardees, including Linquest Corporation and KBR Wyle Services, LLC
Top agencies
$220,697,915
Rank history: #16 in FY2021, #17 in FY2022, #16 in FY2023 and #44 in FY2024; up 1 since FY2024.
44
Medical Technology Enterprise Consortium
Top agencies
$214,368,069
Rank history: #33 in FY2021, #49 in FY2022, #42 in FY2023 and #37 in FY2024; down 7 since FY2024.
45
University of Dayton
Top agencies
$210,835,297
Rank history: #78 in FY2021, #84 in FY2022, #70 in FY2023 and #54 in FY2024; up 9 since FY2024.
46
Southwest Research Institute
Top agencies
$210,700,852
Rank history: #53 in FY2021, #48 in FY2022, #47 in FY2023 and #46 in FY2024; unchanged since FY2024.
47
University of Texas System 13 awardees, including University of Texas At Austin, The Univeristy of Texas M.d. Anderson Cancer Center and University of Texas At Arlington
Top agencies
$190,179,377
Rank history: #44 in FY2021, #47 in FY2022, #54 in FY2023 and #88 in FY2024; up 41 since FY2024.
48
X-Bow Launch Systems Inc.
Top agencies
$189,623,257
Rank history: not on the FY2021–FY2024 lists; up 412 since FY2024.
49
Firefly Aerospace Inc. 2 awardees, including Scitec Innovations LLC
Top agencies
$181,602,933
Rank history: not on the FY2021–FY2024 lists; up 133 since FY2024.
50
Systems Planning and Analysis, Inc. 6 awardees, including Intrepid LLC, MCR Federal, LLC and Group W Inc.
Top agencies
$180,904,895
Rank history: not on the FY2021–FY2024 lists; up 267 since FY2024.
51
Parsons Corporation 6 awardees, including Parsons Government Services Inc., Space Ground System Solutions, Inc. and Chesapeake Technology International, Corp.
Top agencies
$178,860,098
Rank history: #25 in FY2021, #22 in FY2022, #41 in FY2023 and #70 in FY2024; up 19 since FY2024.
52
Deloitte Through Deloitte Consulting LLP
Top agencies
$175,121,263
Rank history: not on the FY2021–FY2023 lists and #68 in FY2024; up 16 since FY2024.
53
Rocket Lab USA Inc. 4 awardees, including Rocket Lab National Security LLC and Geost, LLC
Top agencies
$162,322,701
Rank history: not on the FY2021–FY2024 lists; new.
54
The Aerospace Corporation
Top agencies
$157,953,531
Rank history: #63 in FY2021, #65 in FY2022, #59 in FY2023 and #51 in FY2024; down 3 since FY2024.
55
Arctic Slope Regional Corporation 9 awardees, including Asrc Federal System Solutions LLC, Asrc Federal Advanced Research, LLC and Analytical Services, Inc.
Top agencies
$157,270,801
Rank history: #75 in FY2021, #70 in FY2022, #76 in FY2023 and #66 in FY2024; up 11 since FY2024.
56
Aerovironment, Inc. 6 awardees, including Bluehalo, LLC and Bluehalo Labs, LLC
Top agencies
$157,012,092
Rank history: not on the FY2021–FY2024 lists; new.
57
Carnegie-Mellon University 2 awardees
Top agencies
$156,595,059
Rank history: #43 in FY2021, #42 in FY2022, #51 in FY2023 and #41 in FY2024; down 16 since FY2024.
58
Radiance Technologies, Inc. 2 awardees, including Verus Research, LLC
Top agencies
$155,331,773
Rank history: not on the FY2021–FY2023 lists and #63 in FY2024; up 5 since FY2024.
59
Qinetiq Inc. 3 awardees, including Avantus Federal LLC
Top agencies
$148,972,048
Rank history: not on the FY2021–FY2024 lists; up 46 since FY2024.
60
Assurance Technology Corp
Top agencies
$136,951,683
Rank history: #94 in FY2021, #80 in FY2022, #73 in FY2023 and not on the FY2024 list; up 48 since FY2024.
61
Intuitive Research and Technology Corporation
Top agencies
$134,950,207
Rank history: not on the FY2021 list, #100 in FY2022 and not on the FY2023–FY2024 lists; up 278 since FY2024.
62
Systems & Technology Research LLC
Top agencies
$133,623,666
Rank history: #47 in FY2021, #62 in FY2022, #56 in FY2023 and #62 in FY2024; unchanged since FY2024.
63
The National Advanced Mobility Consortium, Inc.
Top agencies
$131,539,705
Rank history: #69 in FY2021, #68 in FY2022, #38 in FY2023 and #87 in FY2024; up 24 since FY2024.
64
Peraton Inc. 2 awardees, including Dhpc Technologies, Inc.
Top agencies
$129,325,929
Rank history: not on the FY2021–FY2023 lists and #77 in FY2024; up 13 since FY2024.
65
Consortium Management Group, Inc.
Top agencies
$124,154,303
Rank history: not on the FY2021–FY2024 lists; up 113 since FY2024.
66
General Atomics Aeronautical Systems, Inc.
Top agencies
$123,944,737
Rank history: not on the FY2021–FY2023 lists and #94 in FY2024; up 28 since FY2024.
67
Joint Technical Solutions, LLC
Top agencies
$121,612,455
Rank history: not on the FY2021–FY2024 lists; up 56 since FY2024.
68
Bluestaq LLC
Top agencies
$121,380,590
Rank history: not on the FY2021–FY2023 lists and #50 in FY2024; down 18 since FY2024.
69
Utah State University 2 awardees, including Utah State University Space Dynamics Laboratory
Top agencies
$118,851,887
Rank history: #68 in FY2021, #60 in FY2022, #63 in FY2023 and not on the FY2024 list; up 86 since FY2024.
70
Innovative Defense Technologies LLC
Top agencies
$116,079,911
Rank history: not on the FY2021–FY2023 lists and #86 in FY2024; up 16 since FY2024.
71
American Systems Corporation
Top agencies
$114,943,419
Rank history: not on the FY2021 list, #93 in FY2022, #77 in FY2023 and #59 in FY2024; down 12 since FY2024.
72
Emergent Biosolutions Inc. 2 awardees, including Emergent Product Development Gaithersburg Inc. and Emergent Biodefense Operations Lansing LLC
Top agencies
$113,778,951
Rank history: not on the FY2021–FY2023 lists and #53 in FY2024; down 19 since FY2024.
73
The Regents of the University of California 2 awardees
Top agencies
$113,662,819
Rank history: not on the FY2021–FY2024 lists; new.
74
BWX Technologies, Inc. Through Bwxt Advanced Technologies LLC
Top agencies
$107,976,022
Rank history: not on the FY2021 list, #87 in FY2022, #82 in FY2023 and not on the FY2024 list; up 93 since FY2024.
75
Trax International Corporation
Top agencies
$106,938,993
Rank history: #59 in FY2021, #66 in FY2022, #74 in FY2023 and #76 in FY2024; up 1 since FY2024.
76
Start2 Group, Inc.
Top agencies
$105,217,536
Rank history: not on the FY2021–FY2024 lists; up 145 since FY2024.
77
Science Systems and Applications, Inc.
Top agencies
$105,205,743
Rank history: #67 in FY2021, #69 in FY2022, #69 in FY2023 and #71 in FY2024; down 6 since FY2024.
78
Two Six Labs, LLC 3 awardees, including IST Research, LLC and River Loop Security LLC
Top agencies
$101,725,715
Rank history: not on the FY2021–FY2024 lists; up 80 since FY2024.
79
University of Washington 3 awardees
Top agencies
$99,136,591
Rank history: #93 in FY2021, #97 in FY2022, #88 in FY2023 and not on the FY2024 list; up 90 since FY2024.
80
Government of the United States 4 awardees, including Smithsonian Institution
Top agencies
$96,480,457
Rank history: #77 in FY2021, #44 in FY2022, #87 in FY2023 and not on the FY2024 list; returned.
81
Raytheon Company
Top agencies
$95,300,000
Rank history: not on the FY2021–FY2023 lists and #36 in FY2024; down 45 since FY2024.
82
Technology Service Corp
Top agencies
$94,692,012
Rank history: not on the FY2021–FY2024 lists; up 74 since FY2024.
83
American Electronic Warfare Associates Incorporated
Top agencies
$93,488,766
Rank history: not on the FY2021–FY2023 lists and #99 in FY2024; up 16 since FY2024.
84
Seacorp, LLC 2 awardees
Top agencies
$93,257,424
Rank history: not on the FY2021–FY2022 lists, #95 in FY2023 and #74 in FY2024; down 10 since FY2024.
85
Teledyne Flir Unmanned Ground Systems Inc 10 awardees, including Teledyne Brown Engineering, Inc., Teledyne Scientific & Imaging, LLC and Teledyne Flir Defense, LLC
Top agencies
$92,751,826
Rank history: #79 in FY2021, not on the FY2022 list, #99 in FY2023 and #60 in FY2024; down 25 since FY2024.
86
The Regents of the University of Colorado 2 awardees
Top agencies
$90,161,951
Rank history: #62 in FY2021, #74 in FY2022, #98 in FY2023 and not on the FY2024 list; up 18 since FY2024.
87
Amgen USA Inc
Top agencies
$89,932,937
Rank history: not on the FY2021–FY2023 lists and #61 in FY2024; down 26 since FY2024.
88
Icr, Inc.
Top agencies
$89,793,075
Rank history: not on the FY2021–FY2022 lists, #96 in FY2023 and not on the FY2024 list; up 22 since FY2024.
89
Wildstar LLC
Top agencies
$85,554,224
Rank history: not on the FY2021–FY2024 lists; up 327 since FY2024.
90
Sri International
Top agencies
$85,471,929
Rank history: #50 in FY2021, #50 in FY2022, #61 in FY2023 and #80 in FY2024; down 10 since FY2024.
91
Tecolote Research, Inc.
Top agencies
$84,541,443
Rank history: not on the FY2021–FY2024 lists; up 95 since FY2024.
92
Adnet Systems Inc.
Top agencies
$84,323,564
Rank history: not on the FY2021–FY2024 lists; up 27 since FY2024.
93
General Atomics 2 awardees
Top agencies
$83,143,576
Rank history: not on the FY2021–FY2023 lists and #81 in FY2024; down 12 since FY2024.
94
Jetzero, Inc.
Top agencies
$82,652,061
Rank history: not on the FY2021–FY2023 lists and #79 in FY2024; down 15 since FY2024.
95
Westat, Inc. 2 awardees
Top agencies
$80,882,565
Rank history: #57 in FY2021, #51 in FY2022, #89 in FY2023 and #78 in FY2024; down 17 since FY2024.
96
Chickasaw Nation 7 awardees, including Corvid Technologies, LLC, Atea Technologies, LLC and Chickasaw Service Solutions, LLC
Top agencies
$79,564,030
Rank history: not on the FY2021–FY2024 lists; new.
97
Seqirus Inc.
Top agencies
$78,527,000
Rank history: not on the FY2021–FY2023 lists and #35 in FY2024; down 62 since FY2024.
98
Mag DS Corp
Top agencies
$76,784,001
Rank history: not on the FY2021–FY2024 lists; new.
99
University of Arizona
Top agencies
$76,138,474
Rank history: not on the FY2021–FY2024 lists; up 192 since FY2024.
100
Dzyne Technologies, LLC 3 awardees, including Black Sage Technologies Inc. and Liteye Systems, Inc.
Top agencies
$75,909,127
Rank history: not on the FY2021–FY2024 lists; up 133 since FY2024.
Show 75 more

100 of 4,662 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC A

Code Net obligations Largest contractor
AC National Defense R&D Services $47,277,230,950 Lockheed Martin Corporation
AR Space R&D Services $9,809,851,382 California Institute of Technology
AJ General Science and Technology R&D Services $5,402,940,013 Battelle Savannah River Alliance, LLC
AZ Other Research/Development $3,833,722,409 Lawrence Livermore National Security, LLC
AN Health R&D Services $2,989,800,107 Leidos Holdings, Inc.
AD Defense (Other) R&D $941,551,022 Science Applications International Corporation
AS Transportation R&D Services $272,854,793 General Electric Company
AH Natural Resources and Environment R&D Services $154,973,309 RTX Corporation
AG Energy R&D Services $147,300,238 BWX Technologies, Inc.
AB Community and Regional Development R&D Services $134,291,855 L3Harris Technologies, Inc.
AF Education, Training, Employment, and Social Services R&D Services $66,107,185 Family Health International
AA Agriculture R&D Services $33,200,898 Chemonics International, Inc.

How this ranking works

  • Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
  • Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $74.6 billion obligated before deobligations, so they never pass 100%.
  • Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
  • Fiscal year 2025 ran Oct 1, 2024 – Sep 30, 2025. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
  • Rank changes compare with FY2024. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
  • Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2024 takes the color of the rank change beside it.
  • Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 PSC A contractors in FY2025?

1. Lockheed Martin Corporation ($7.86B), 2. Northrop Grumman Systems Corporation ($4.9B), 3. Lawrence Livermore National Security, LLC ($3.63B), 4. Analytic Services Inc. ($3.1B), 5. RTX Corporation ($2.53B), 6. The Boeing Company ($2.49B), 7. California Institute of Technology ($2.39B), 8. Johns Hopkins University ($1.99B), 9. Massachusetts Institute of Technology ($1.48B), 10. National Security Technology Accelerator Inc. ($1.41B).

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