Top 100 Contractors in PSC AC: National Defense R&D Services, Aug 2025–Jul 2026

Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe

The latest 12 months. See the newest fiscal year's list: Top Contractors in PSC AC: National Defense R&D Services, FY2025.

The top 10 won 49% of PSC AC contract dollars from August 2025 through July 2026

Ranking facts

Contract obligations
$65,311,002,800 Net of deobligations, by contracts coded PSC AC or a code under it
Contractors
4,270 Parent companies with an obligation
Largest contractor
Lockheed Martin Corporation $7.47 billion, 11.2% 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 $7,466,480,765
Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Aug 2024–Jul 2025.
2 $6,117,486,978
Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; unchanged since Aug 2024–Jul 2025.
3 $4,062,098,167
Rank history: #8 in FY2021, #8 in FY2022, #6 in FY2023, #21 in FY2024 and #3 in FY2025; new, not ranked in Aug 2024–Jul 2025.
4 $3,081,709,515
Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2023, #4 in FY2024 and #4 in FY2025; unchanged since Aug 2024–Jul 2025.
5 $2,905,975,420
Rank history: #21 in FY2021, #24 in FY2022, #46 in FY2023, #40 in FY2024 and #33 in FY2025; up 27 since Aug 2024–Jul 2025.
6 $2,422,116,571
Rank history: #13 in FY2021, #9 in FY2022, #19 in FY2023, #11 in FY2024 and #16 in FY2025; up 14 since Aug 2024–Jul 2025.
7 $1,933,729,254
Rank history: not on the FY2021 list, #39 in FY2022, #15 in FY2023, #13 in FY2024 and #7 in FY2025; up 1 since Aug 2024–Jul 2025.
8 $1,694,555,784
Rank history: #4 in FY2021, #5 in FY2022, #4 in FY2023, #6 in FY2024 and not on the FY2025 list; down 2 since Aug 2024–Jul 2025.
9 $1,638,176,093
Rank history: #14 in FY2021, #19 in FY2022, #9 in FY2023, #7 in FY2024 and #8 in FY2025; up 1 since Aug 2024–Jul 2025.
10 $1,594,566,490
Rank history: not on the FY2021–FY2024 lists and #5 in FY2025; new, not ranked in Aug 2024–Jul 2025.
11 $1,353,165,748
Rank history: #6 in FY2021, #10 in FY2022, #11 in FY2023, #12 in FY2024 and #9 in FY2025; unchanged since Aug 2024–Jul 2025.
12 $1,337,470,599
Rank history: #50 in FY2021, #4 in FY2022, #5 in FY2023, #10 in FY2024 and #13 in FY2025; up 1 since Aug 2024–Jul 2025.
13 $1,173,174,311
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
14 $1,120,084,797
Rank history: #16 in FY2021, #12 in FY2022, #13 in FY2023, #8 in FY2024 and #10 in FY2025; down 5 since Aug 2024–Jul 2025.
15 $1,118,960,509
Rank history: #12 in FY2021, #17 in FY2022, #24 in FY2023, #19 in FY2024 and #12 in FY2025; down 3 since Aug 2024–Jul 2025.
16 $867,854,549
Rank history: #5 in FY2021, #7 in FY2022, #8 in FY2023, #5 in FY2024 and #11 in FY2025; down 9 since Aug 2024–Jul 2025.
17 $795,031,274
Rank history: #24 in FY2021, #30 in FY2022, #20 in FY2023, #24 in FY2024 and #19 in FY2025; unchanged since Aug 2024–Jul 2025.
18 $759,469,967
Rank history: #32 in FY2021, #40 in FY2022, #38 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
19 $746,462,092
Rank history: #11 in FY2021, #11 in FY2022, #12 in FY2023, #14 in FY2024 and #14 in FY2025; down 4 since Aug 2024–Jul 2025.
20 $672,002,680
Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; down 1 since Aug 2024–Jul 2025.
21 $582,727,137
Rank history: not on the FY2021–FY2023 lists, #42 in FY2024 and #27 in FY2025; up 15 since Aug 2024–Jul 2025.
22 $536,358,987
Rank history: #35 in FY2021, #23 in FY2022, #25 in FY2023, #27 in FY2024 and #22 in FY2025; up 2 since Aug 2024–Jul 2025.
23 $491,096,033
Rank history: #10 in FY2021, #14 in FY2022, #17 in FY2023, #22 in FY2024 and #20 in FY2025; down 2 since Aug 2024–Jul 2025.
24 $464,570,816
Rank history: not on the FY2021 list, #25 in FY2022, not on the FY2023 list, #15 in FY2024 and #17 in FY2025; down 8 since Aug 2024–Jul 2025.
25 $451,159,566
Rank history: not on the FY2021 list, #55 in FY2022, #40 in FY2023, #20 in FY2024 and #21 in FY2025; down 7 since Aug 2024–Jul 2025.
26 $438,271,556
Rank history: #22 in FY2021, #16 in FY2022, #14 in FY2023, #36 in FY2024 and #36 in FY2025; new, not ranked in Aug 2024–Jul 2025.
27 $431,305,649
Rank history: not on the FY2021–FY2023 lists, #17 in FY2024 and #15 in FY2025; down 13 since Aug 2024–Jul 2025.
28 $399,963,994
Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; up 394 since Aug 2024–Jul 2025.
29 $344,066,052
Rank history: #23 in FY2021, #15 in FY2022, #23 in FY2023, #28 in FY2024 and #24 in FY2025; down 4 since Aug 2024–Jul 2025.
30 $318,617,187
Rank history: not on the FY2021–FY2024 lists and #71 in FY2025; up 53 since Aug 2024–Jul 2025.
31 $300,000,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
32 $288,504,077
Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; down 2 since Aug 2024–Jul 2025.
33 $250,177,576
Rank history: #15 in FY2021, #18 in FY2022, #22 in FY2023, #16 in FY2024 and #25 in FY2025; down 11 since Aug 2024–Jul 2025.
34 $231,937,946
Rank history: not on the FY2021–FY2023 lists, #74 in FY2024 and #46 in FY2025; up 19 since Aug 2024–Jul 2025.
35 $226,507,221
Rank history: #57 in FY2021, #56 in FY2022, #52 in FY2023, #47 in FY2024 and #32 in FY2025; unchanged since Aug 2024–Jul 2025.
36 $225,163,799
Rank history: not on the FY2021–FY2024 lists and #34 in FY2025; up 80 since Aug 2024–Jul 2025.
37 $214,986,418
Rank history: not on the FY2021–FY2023 lists, #55 in FY2024 and #37 in FY2025; down 6 since Aug 2024–Jul 2025.
38 $214,607,277
Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; up 48 since Aug 2024–Jul 2025.
39 $206,859,884
Rank history: #52 in FY2021, #49 in FY2022, #29 in FY2023, #34 in FY2024 and #39 in FY2025; up 2 since Aug 2024–Jul 2025.
40 $198,305,233
Rank history: #30 in FY2021, #45 in FY2022, #32 in FY2023, #44 in FY2024 and #49 in FY2025; up 7 since Aug 2024–Jul 2025.
41 $188,421,416
Rank history: #58 in FY2021, #83 in FY2022, #68 in FY2023, #32 in FY2024 and #28 in FY2025; down 12 since Aug 2024–Jul 2025.
42 $187,210,718
Rank history: not on the FY2021–FY2022 lists, #62 in FY2023, not on the FY2024 list and #31 in FY2025; up 105 since Aug 2024–Jul 2025.
43 $178,772,171
Rank history: not on the FY2021–FY2023 lists, #73 in FY2024 and #52 in FY2025; up 1 since Aug 2024–Jul 2025.
44 $174,502,781
Rank history: #91 in FY2021, not on the FY2022–FY2024 lists and #42 in FY2025; up 7 since Aug 2024–Jul 2025.
45 $173,942,304
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
46 $170,468,563
Rank history: #31 in FY2021, #28 in FY2022, #27 in FY2023, #29 in FY2024 and #35 in FY2025; down 13 since Aug 2024–Jul 2025.
47 $168,183,615
Rank history: #100 in FY2021, #92 in FY2022, #80 in FY2023, not on the FY2024 list and #53 in FY2025; up 7 since Aug 2024–Jul 2025.
48 $167,241,848
Rank history: not on the FY2021–FY2025 lists; up 14 since Aug 2024–Jul 2025.
49 $152,085,389
Rank history: not on the FY2021–FY2024 lists and #40 in FY2025; up 206 since Aug 2024–Jul 2025.
50 $150,000,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
51 $146,421,102
Rank history: #20 in FY2021, #26 in FY2022, #30 in FY2023, #31 in FY2024 and #43 in FY2025; new, not ranked in Aug 2024–Jul 2025.
52 $143,739,796
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
53 $133,572,951
Rank history: not on the FY2021 list, #76 in FY2022, #87 in FY2023, #33 in FY2024 and #51 in FY2025; down 8 since Aug 2024–Jul 2025.
54 $132,199,612
Rank history: #34 in FY2021, #38 in FY2022, #28 in FY2023, not on the FY2024 list and #30 in FY2025; up 407 since Aug 2024–Jul 2025.
55 $127,458,877
Rank history: not on the FY2021–FY2022 lists, #96 in FY2023, not on the FY2024 list and #66 in FY2025; new, not ranked in Aug 2024–Jul 2025.
56 $124,490,200
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
57 $120,167,231
Rank history: not on the FY2021–FY2023 lists, #78 in FY2024 and #50 in FY2025; down 8 since Aug 2024–Jul 2025.
58 $114,576,928
Rank history: #99 in FY2021, not on the FY2022 list, #86 in FY2023, not on the FY2024 list and #68 in FY2025; up 39 since Aug 2024–Jul 2025.
59 $111,958,344
Rank history: #51 in FY2021, #66 in FY2022, #65 in FY2023, #88 in FY2024 and #55 in FY2025; up 22 since Aug 2024–Jul 2025.
60 $109,382,255
Rank history: not on the FY2021–FY2024 lists and #62 in FY2025; up 52 since Aug 2024–Jul 2025.
61 $105,390,206
Rank history: not on the FY2021–FY2022 lists, #51 in FY2023, #72 in FY2024 and #59 in FY2025; down 1 since Aug 2024–Jul 2025.
62 $104,911,970
Rank history: #37 in FY2021, #34 in FY2022, #41 in FY2023, #65 in FY2024 and #44 in FY2025; new, not ranked in Aug 2024–Jul 2025.
63
American Electronic Warfare Associates Incorporated
$104,608,111
Rank history: not on the FY2021–FY2023 lists, #64 in FY2024 and #57 in FY2025; up 2 since Aug 2024–Jul 2025.
64 $104,136,483
Rank history: #60 in FY2021, #61 in FY2022, #50 in FY2023, #48 in FY2024 and #58 in FY2025; down 5 since Aug 2024–Jul 2025.
65 $102,294,305
Rank history: not on the FY2021–FY2025 lists; up 95 since Aug 2024–Jul 2025.
66 $100,305,515
Rank history: #38 in FY2021, #43 in FY2022, #35 in FY2023, not on the FY2024 list and #56 in FY2025; new, not ranked in Aug 2024–Jul 2025.
67 $97,606,472
Rank history: #33 in FY2021, #42 in FY2022, #33 in FY2023, not on the FY2024 list and #80 in FY2025; new, not ranked in Aug 2024–Jul 2025.
68 $95,058,199
Rank history: #93 in FY2021, #89 in FY2022, #97 in FY2023, #58 in FY2024 and #75 in FY2025; down 1 since Aug 2024–Jul 2025.
69 $91,657,979
Rank history: not on the FY2021–FY2023 lists, #60 in FY2024 and #60 in FY2025; down 19 since Aug 2024–Jul 2025.
70 $88,577,848
Rank history: not on the FY2021 list, #96 in FY2022, #64 in FY2023, #54 in FY2024 and #94 in FY2025; up 5 since Aug 2024–Jul 2025.
71 $86,819,069
Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; up 36 since Aug 2024–Jul 2025.
72 $86,334,781
Rank history: not on the FY2021 list, #57 in FY2022, #58 in FY2023, #77 in FY2024 and #70 in FY2025; down 1 since Aug 2024–Jul 2025.
73 $85,500,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
74 $83,731,469
Rank history: not on the FY2021–FY2024 lists and #98 in FY2025; up 24 since Aug 2024–Jul 2025.
75 $83,256,047
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
76 $82,162,917
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
77 $79,300,892
Rank history: not on the FY2021–FY2022 lists, #59 in FY2023, #71 in FY2024 and #69 in FY2025; up 3 since Aug 2024–Jul 2025.
78 $75,160,500
Rank history: not on the FY2021–FY2022 lists, #60 in FY2023 and not on the FY2024–FY2025 lists; up 47 since Aug 2024–Jul 2025.
79 $75,048,314
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
80 $75,007,275
Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; up 41 since Aug 2024–Jul 2025.
81 $73,144,725
Rank history: not on the FY2021–FY2024 lists and #97 in FY2025; down 8 since Aug 2024–Jul 2025.
82 $72,304,320
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
83 $70,926,230
Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; up 330 since Aug 2024–Jul 2025.
84 $70,643,393
Rank history: not on the FY2021–FY2025 lists; up 135 since Aug 2024–Jul 2025.
85 $69,752,652
Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; new, not ranked in Aug 2024–Jul 2025.
86 $69,344,795
Rank history: #76 in FY2021, not on the FY2022–FY2024 lists and #74 in FY2025; up 69 since Aug 2024–Jul 2025.
87 $69,231,069
Rank history: not on the FY2021–FY2022 lists, #93 in FY2023, not on the FY2024 list and #77 in FY2025; up 5 since Aug 2024–Jul 2025.
88 $68,366,782
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
89 $67,880,729
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
90 $64,781,347
Rank history: #45 in FY2021, #44 in FY2022, #47 in FY2023, #53 in FY2024 and #47 in FY2025; down 35 since Aug 2024–Jul 2025.
91 $64,771,028
Rank history: not on the FY2021–FY2024 lists and #73 in FY2025; up 55 since Aug 2024–Jul 2025.
92 $64,635,356
Rank history: not on the FY2021–FY2024 lists and #90 in FY2025; up 42 since Aug 2024–Jul 2025.
93 $64,301,845
Rank history: not on the FY2021–FY2023 lists, #84 in FY2024 and #67 in FY2025; down 23 since Aug 2024–Jul 2025.
94 $60,839,523
Rank history: not on the FY2021–FY2025 lists; up 281 since Aug 2024–Jul 2025.
95 $59,703,029
Rank history: #29 in FY2021, #46 in FY2022, #54 in FY2023, #67 in FY2024 and #76 in FY2025; down 32 since Aug 2024–Jul 2025.
96 $58,534,056
Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; down 7 since Aug 2024–Jul 2025.
97 $58,187,503
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
98 $56,243,510
Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; down 21 since Aug 2024–Jul 2025.
99 $55,505,219
Rank history: #43 in FY2021, #75 in FY2022, not on the FY2023–FY2024 lists and #72 in FY2025; up 40 since Aug 2024–Jul 2025.
100 $55,242,000
Rank history: not on the FY2021–FY2025 lists; up 386 since Aug 2024–Jul 2025.
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100 of 4,270 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC AC

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 $66.6 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.
  • Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
  • Rank changes compare with Aug 2024–Jul 2025. "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.
  • 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 AC contractors in Aug 2025–Jul 2026?

1. Lockheed Martin Corporation ($7.47B), 2. Northrop Grumman Systems Corporation ($6.12B), 3. Analytic Services Inc. ($4.06B), 4. RTX Corporation ($3.08B), 5. Space Exploration Technologies Corp. ($2.91B), 6. L3Harris Technologies, Inc. ($2.42B), 7. National Security Technology Accelerator Inc. ($1.93B), 8. Massachusetts Institute of Technology ($1.69B), 9. Textron Inc. ($1.64B), 10. Johns Hopkins University ($1.59B).

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