Top 100 Contractors in NAICS 334511: Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing, FY2025

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

The top 10 won 79% of FY2025 NAICS 334511 contract dollars

Ranking facts

Contract obligations
$20,906,439,313 Net of deobligations, by contracts coded NAICS 334511
Contractors
1,124 Parent companies with an obligation
Largest contractor
RTX Corporation $8.2 billion, 38.2% 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 $8,201,786,844
Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2 $3,140,889,053
Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #2 in FY2024; unchanged since FY2024.
3 $1,511,297,601
Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2023 and #3 in FY2024; unchanged since FY2024.
4 $860,857,061
Rank history: #12 in FY2021, #11 in FY2022, #4 in FY2023 and #4 in FY2024; unchanged since FY2024.
5 $749,701,697
Rank history: #4 in FY2021, #4 in FY2022, #5 in FY2023 and #8 in FY2024; up 3 since FY2024.
6 $685,667,669
Rank history: #6 in FY2021, #6 in FY2022, #6 in FY2023 and #5 in FY2024; down 1 since FY2024.
7 $589,683,263
Rank history: #10 in FY2021, #8 in FY2022, #8 in FY2023 and #7 in FY2024; unchanged since FY2024.
8 $450,828,114
Rank history: #13 in FY2021, #10 in FY2022, #11 in FY2023 and #10 in FY2024; up 2 since FY2024.
9 $434,288,219
Rank history: not on the FY2021–FY2024 lists; new.
10 $394,116,650
Rank history: not on the FY2021–FY2024 lists; up 172 since FY2024.
11 $309,424,468
Rank history: not on the FY2021–FY2023 lists and #30 in FY2024; up 19 since FY2024.
12 $303,285,307
Rank history: #16 in FY2021, #24 in FY2022, #15 in FY2023 and #16 in FY2024; up 4 since FY2024.
13 $282,954,291
Rank history: #9 in FY2021, #12 in FY2022, #12 in FY2023 and #13 in FY2024; unchanged since FY2024.
14
Ultra Electronics Ocean Systems Inc.
$219,336,603
Rank history: not on the FY2021–FY2023 lists and #24 in FY2024; up 10 since FY2024.
15 $208,980,038
Rank history: #21 in FY2021, #16 in FY2022, #13 in FY2023 and #14 in FY2024; down 1 since FY2024.
16 $204,316,666
Rank history: not on the FY2021 list, #17 in FY2022, #16 in FY2023 and #6 in FY2024; down 10 since FY2024.
17 $183,888,018
Rank history: #32 in FY2021, #23 in FY2022, #34 in FY2023 and #29 in FY2024; up 12 since FY2024.
18 $175,700,532
Rank history: #22 in FY2021, #14 in FY2022, #7 in FY2023 and #11 in FY2024; down 7 since FY2024.
19 $149,505,425
Rank history: not on the FY2021–FY2024 lists; new.
20 $105,872,365
Rank history: not on the FY2021–FY2022 lists, #23 in FY2023 and #27 in FY2024; up 7 since FY2024.
21 $98,586,409
Rank history: not on the FY2021 list, #56 in FY2022, not on the FY2023 list and #17 in FY2024; down 4 since FY2024.
22 $95,387,671
Rank history: not on the FY2021–FY2023 lists and #28 in FY2024; up 6 since FY2024.
23 $56,454,134
Rank history: not on the FY2021–FY2024 lists; up 130 since FY2024.
24 $53,672,634
Rank history: #28 in FY2021, #19 in FY2022, #26 in FY2023 and #25 in FY2024; up 1 since FY2024.
25 $51,968,541
Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and #32 in FY2024; up 7 since FY2024.
26 $51,452,301
Rank history: not on the FY2021–FY2024 lists; up 134 since FY2024.
27 $47,466,966
Rank history: #36 in FY2021, #35 in FY2022, #46 in FY2023 and #22 in FY2024; down 5 since FY2024.
28 $38,372,768
Rank history: not on the FY2021–FY2023 lists and #20 in FY2024; down 8 since FY2024.
29 $36,561,520
Rank history: not on the FY2021–FY2023 lists and #85 in FY2024; up 56 since FY2024.
30 $35,316,332
Rank history: not on the FY2021 list, #89 in FY2022 and not on the FY2023–FY2024 lists; returned.
31 $35,055,697
Rank history: not on the FY2021–FY2024 lists; new.
32 $32,355,860
Rank history: #35 in FY2021, #50 in FY2022, #53 in FY2023 and #71 in FY2024; up 39 since FY2024.
33 $29,349,055
Rank history: not on the FY2021–FY2022 lists, #64 in FY2023 and #55 in FY2024; up 22 since FY2024.
34 $29,279,213
Rank history: #26 in FY2021, #28 in FY2022, #19 in FY2023 and #39 in FY2024; up 5 since FY2024.
35 $29,132,013
Rank history: not on the FY2021–FY2023 lists and #46 in FY2024; up 11 since FY2024.
36 $28,698,894
Rank history: #11 in FY2021, #13 in FY2022, #14 in FY2023 and #21 in FY2024; down 15 since FY2024.
37 $27,735,991
Rank history: not on the FY2021–FY2024 lists; up 92 since FY2024.
38 $25,836,524
Rank history: #20 in FY2021, #25 in FY2022, #40 in FY2023 and #35 in FY2024; down 3 since FY2024.
39 $24,561,086
Rank history: not on the FY2021 list, #48 in FY2022, #48 in FY2023 and #69 in FY2024; up 30 since FY2024.
40 $23,502,923
Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and not on the FY2024 list; up 63 since FY2024.
41 $21,191,075
Rank history: not on the FY2021–FY2024 lists; new.
42 $20,726,076
Rank history: not on the FY2021–FY2023 lists and #59 in FY2024; up 17 since FY2024.
43 $20,496,763
Rank history: not on the FY2021–FY2024 lists; new.
44 $20,494,649
Rank history: not on the FY2021–FY2024 lists; up 234 since FY2024.
45 $19,669,771
Rank history: #29 in FY2021, #26 in FY2022, #61 in FY2023 and not on the FY2024 list; up 96 since FY2024.
46 $18,779,986
Rank history: not on the FY2021–FY2023 lists and #26 in FY2024; down 20 since FY2024.
47 $17,663,426
Rank history: not on the FY2021–FY2024 lists; up 57 since FY2024.
48 $16,962,235
Rank history: not on the FY2021–FY2024 lists; up 349 since FY2024.
49 $16,463,173
Rank history: not on the FY2021–FY2023 lists and #62 in FY2024; up 13 since FY2024.
50 $16,199,159
Rank history: #39 in FY2021, #49 in FY2022, #37 in FY2023 and #45 in FY2024; down 5 since FY2024.
51 $15,931,938
Rank history: not on the FY2021–FY2023 lists and #34 in FY2024; down 17 since FY2024.
52 $15,813,254
Rank history: not on the FY2021–FY2024 lists; up 311 since FY2024.
53 $15,748,872
Rank history: not on the FY2021–FY2023 lists and #76 in FY2024; up 23 since FY2024.
54 $14,951,301
Rank history: not on the FY2021–FY2024 lists; new.
55 $14,860,034
Rank history: not on the FY2021–FY2024 lists; new.
56 $14,850,000
Rank history: not on the FY2021–FY2024 lists; new.
57 $13,201,071
Rank history: not on the FY2021–FY2023 lists and #50 in FY2024; down 7 since FY2024.
58 $12,777,274
Rank history: #5 in FY2021, #5 in FY2022, not on the FY2023 list and #78 in FY2024; up 20 since FY2024.
59 $12,166,670
Rank history: not on the FY2021–FY2024 lists; new.
60 $11,984,447
Rank history: not on the FY2021–FY2024 lists; new.
61 $11,649,964
Rank history: not on the FY2021–FY2024 lists; new.
62 $11,435,896
Rank history: not on the FY2021 list, #83 in FY2022, #60 in FY2023 and #74 in FY2024; up 12 since FY2024.
63 $11,226,422
Rank history: #76 in FY2021, #73 in FY2022, #93 in FY2023 and #72 in FY2024; up 9 since FY2024.
64 $10,909,572
Rank history: not on the FY2021–FY2022 lists, #77 in FY2023 and not on the FY2024 list; up 87 since FY2024.
65 $10,520,436
Rank history: #61 in FY2021, #58 in FY2022, #52 in FY2023 and #63 in FY2024; down 2 since FY2024.
66 $10,123,011
Rank history: not on the FY2021–FY2024 lists; new.
67 $9,974,728
Rank history: not on the FY2021–FY2024 lists; up 43 since FY2024.
68 $9,841,809
Rank history: not on the FY2021–FY2024 lists; new.
69 $9,795,756
Rank history: not on the FY2021–FY2024 lists; up 217 since FY2024.
70 $9,672,938
Rank history: not on the FY2021–FY2022 lists, #38 in FY2023 and #48 in FY2024; down 22 since FY2024.
71 $9,371,783
Rank history: not on the FY2021–FY2023 lists and #88 in FY2024; up 17 since FY2024.
72 $8,033,081
Rank history: not on the FY2021–FY2023 lists and #68 in FY2024; down 4 since FY2024.
73 $7,930,279
Rank history: not on the FY2021–FY2024 lists; up 159 since FY2024.
74 $7,927,916
Rank history: not on the FY2021–FY2022 lists, #47 in FY2023 and not on the FY2024 list; up 362 since FY2024.
75 $7,666,882
Rank history: #51 in FY2021 and not on the FY2022–FY2024 lists; up 94 since FY2024.
76 $7,498,511
Rank history: not on the FY2021–FY2024 lists; new.
77 $7,451,671
Rank history: #79 in FY2021, #67 in FY2022, #86 in FY2023 and not on the FY2024 list; up 48 since FY2024.
78 $7,150,000
Rank history: not on the FY2021–FY2024 lists; up 78 since FY2024.
79 $6,805,203
Rank history: not on the FY2021–FY2024 lists; up 53 since FY2024.
80 $6,100,595
Rank history: not on the FY2021–FY2024 lists; new.
81 $5,950,467
Rank history: not on the FY2021 list, #21 in FY2022, #44 in FY2023 and #98 in FY2024; up 17 since FY2024.
82 $5,656,693
Rank history: not on the FY2021–FY2023 lists and #40 in FY2024; down 42 since FY2024.
83 $5,472,308
Rank history: not on the FY2021–FY2024 lists; up 127 since FY2024.
84 $5,228,703
Rank history: not on the FY2021–FY2024 lists; up 221 since FY2024.
85 $5,100,000
Rank history: not on the FY2021–FY2024 lists; new.
86 $4,850,895
Rank history: #63 in FY2021, #60 in FY2022, #67 in FY2023 and #100 in FY2024; up 14 since FY2024.
87 $4,810,881
Rank history: not on the FY2021–FY2024 lists; up 92 since FY2024.
88 $4,780,340
Rank history: not on the FY2021–FY2023 lists and #42 in FY2024; down 46 since FY2024.
89 $4,741,623
Rank history: not on the FY2021–FY2023 lists and #94 in FY2024; up 5 since FY2024.
90 $4,727,257
Rank history: #41 in FY2021, #30 in FY2022, #31 in FY2023 and #90 in FY2024; unchanged since FY2024.
91 $4,725,000
Rank history: not on the FY2021–FY2024 lists; new.
92 $4,673,400
Rank history: not on the FY2021–FY2024 lists; up 43 since FY2024.
93 $4,669,002
Rank history: not on the FY2021–FY2024 lists; up 68 since FY2024.
94 $4,567,091
Rank history: not on the FY2021–FY2024 lists; up 15 since FY2024.
95
Serco Inc
$4,470,622
Rank history: not on the FY2021–FY2024 lists; up 120 since FY2024.
96 $4,383,135
Rank history: not on the FY2021–FY2024 lists; new.
97 $4,376,800
Rank history: not on the FY2021–FY2024 lists; up 84 since FY2024.
98 $4,114,438
Rank history: not on the FY2021 list, #69 in FY2022, #80 in FY2023 and not on the FY2024 list; up 51 since FY2024.
99 $4,104,063
Rank history: #95 in FY2021, #71 in FY2022, #74 in FY2023 and #87 in FY2024; down 12 since FY2024.
100 $3,949,049
Rank history: not on the FY2021 list, #70 in FY2022, not on the FY2023 list and #38 in FY2024; down 62 since FY2024.
Show 75 more

100 of 1,124 contractors listed here. See the rest on GovTribe.

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 $21.5 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 NAICS 334511 contractors in FY2025?

1. RTX Corporation ($8.2B), 2. Lockheed Martin Corporation ($3.14B), 3. Northrop Grumman Systems Corporation ($1.51B), 4. The Boeing Company ($861M), 5. L3Harris Technologies, Inc. ($750M), 6. Leonardo S.p.A. ($686M), 7. BAE Systems ($590M), 8. General Dynamics Corporation ($451M), 9. Kongsberg Defence & Aerospace AS ($434M), 10. Undersea Sensor Systems Inc. ($394M).

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