Top 100 Contractors in NAICS 54: Professional, Scientific, and Technical Services, FY2025

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

The top 10 won 25% of FY2025 NAICS 54 contract dollars

Ranking facts

Contract obligations
$221,479,885,134 Net of deobligations, by contracts coded NAICS 54 or a code under it
Contractors
19,229 Parent companies with an obligation
Largest contractor
General Dynamics Corporation $12.1 billion, 5.1% 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 $12,052,405,019
Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2 $8,387,495,490
Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #3 in FY2024; up 1 since FY2024.
3 $7,550,239,755
Rank history: #3 in FY2021, #4 in FY2022, #3 in FY2023 and #2 in FY2024; down 1 since FY2024.
4 $6,160,147,324
Rank history: #4 in FY2021, #3 in FY2022, #4 in FY2023 and #4 in FY2024; unchanged since FY2024.
5 $4,707,252,156
Rank history: #9 in FY2021, #9 in FY2022, #8 in FY2023 and #9 in FY2024; up 4 since FY2024.
6 $4,363,392,329
Rank history: #5 in FY2021, #7 in FY2022, #5 in FY2023 and #6 in FY2024; unchanged since FY2024.
7 $4,224,780,359
Rank history: #7 in FY2021, #6 in FY2022, #6 in FY2023 and #5 in FY2024; down 2 since FY2024.
8 $3,757,367,083
Rank history: #8 in FY2021, #8 in FY2022, #7 in FY2023 and #7 in FY2024; down 1 since FY2024.
9 $3,724,362,688
Rank history: not on the FY2021–FY2023 lists and #8 in FY2024; down 1 since FY2024.
10 $3,495,180,120
Rank history: not on the FY2021–FY2023 lists and #10 in FY2024; unchanged since FY2024.
11 $2,942,126,450
Rank history: #6 in FY2021, #5 in FY2022, #9 in FY2023 and #11 in FY2024; unchanged since FY2024.
12 $2,535,060,868
Rank history: not on the FY2021–FY2023 lists and #13 in FY2024; up 1 since FY2024.
13 $2,364,047,202
Rank history: #13 in FY2021, #10 in FY2022, #12 in FY2023 and #12 in FY2024; down 1 since FY2024.
14 $2,330,418,367
Rank history: not on the FY2021–FY2024 lists; up 111 since FY2024.
15 $2,296,183,664
Rank history: #16 in FY2021, #14 in FY2022, #48 in FY2023 and #22 in FY2024; up 7 since FY2024.
16 $2,267,986,897
Rank history: not on the FY2021–FY2024 lists; new.
17 $2,168,036,609
Rank history: #31 in FY2021, #25 in FY2022, #18 in FY2023 and #17 in FY2024; unchanged since FY2024.
18 $1,945,494,122
Rank history: #78 in FY2021, #28 in FY2022, #43 in FY2023 and #15 in FY2024; down 3 since FY2024.
19 $1,892,214,767
Rank history: #11 in FY2021, #11 in FY2022, #10 in FY2023 and #14 in FY2024; down 5 since FY2024.
20 $1,733,790,751
Rank history: not on the FY2021–FY2024 lists; new.
21 $1,671,316,848
Rank history: #17 in FY2021, #18 in FY2022, #19 in FY2023 and #19 in FY2024; down 2 since FY2024.
22 $1,480,164,679
Rank history: #27 in FY2021, #27 in FY2022, #29 in FY2023 and #27 in FY2024; up 5 since FY2024.
23 $1,457,406,416
Rank history: #12 in FY2021, #16 in FY2022, #20 in FY2023 and #16 in FY2024; down 7 since FY2024.
24 $1,446,684,604
Rank history: #23 in FY2021, #23 in FY2022, #23 in FY2023 and not on the FY2024 list; up 134 since FY2024.
25 $1,405,536,210
Rank history: #24 in FY2021, #26 in FY2022, #28 in FY2023 and #23 in FY2024; down 2 since FY2024.
26 $1,387,180,148
Rank history: not on the FY2021–FY2024 lists; up 159 since FY2024.
27 $1,253,533,584
Rank history: not on the FY2021–FY2023 lists and #29 in FY2024; up 2 since FY2024.
28 $1,245,436,277
Rank history: #46 in FY2021, #50 in FY2022, #54 in FY2023 and #56 in FY2024; up 28 since FY2024.
29 $1,235,909,424
Rank history: #18 in FY2021, #20 in FY2022, #27 in FY2023 and #21 in FY2024; down 8 since FY2024.
30 $1,141,493,604
Rank history: not on the FY2021–FY2023 lists and #44 in FY2024; up 14 since FY2024.
31 $1,113,628,535
Rank history: not on the FY2021–FY2022 lists, #80 in FY2023 and #31 in FY2024; unchanged since FY2024.
32 $1,104,823,720
Rank history: #96 in FY2021, #54 in FY2022 and not on the FY2023–FY2024 lists; up 130 since FY2024.
33 $1,095,526,717
Rank history: #26 in FY2021, #35 in FY2022, #36 in FY2023 and #28 in FY2024; down 5 since FY2024.
34 $1,011,830,639
Rank history: not on the FY2021–FY2022 lists, #46 in FY2023 and #34 in FY2024; unchanged since FY2024.
35 $1,010,787,290
Rank history: #42 in FY2021, #41 in FY2022, #32 in FY2023 and #33 in FY2024; down 2 since FY2024.
36 $900,622,904
Rank history: not on the FY2021–FY2024 lists; up 364 since FY2024.
37 $894,961,406
Rank history: #44 in FY2021, #38 in FY2022, #24 in FY2023 and #26 in FY2024; down 11 since FY2024.
38 $869,308,477
Rank history: #38 in FY2021, #44 in FY2022, #38 in FY2023 and #37 in FY2024; down 1 since FY2024.
39 $866,899,077
Rank history: #25 in FY2021, #22 in FY2022, #37 in FY2023 and #45 in FY2024; up 6 since FY2024.
40 $856,520,902
Rank history: #47 in FY2021, #45 in FY2022, #41 in FY2023 and #40 in FY2024; unchanged since FY2024.
41 $833,759,907
Rank history: #36 in FY2021, #30 in FY2022, #40 in FY2023 and #39 in FY2024; down 2 since FY2024.
42 $816,595,605
Rank history: #41 in FY2021, #52 in FY2022, #47 in FY2023 and #36 in FY2024; down 6 since FY2024.
43 $783,735,603
Rank history: not on the FY2021–FY2022 lists, #72 in FY2023 and #58 in FY2024; up 15 since FY2024.
44 $759,053,658
Rank history: not on the FY2021–FY2023 lists and #55 in FY2024; up 11 since FY2024.
45 $747,079,821
Rank history: #86 in FY2021, #67 in FY2022, #53 in FY2023 and #48 in FY2024; up 3 since FY2024.
46 $741,916,564
Rank history: not on the FY2021–FY2024 lists; up 138 since FY2024.
47 $728,296,406
Rank history: not on the FY2021–FY2024 lists; up 55 since FY2024.
48 $727,295,536
Rank history: not on the FY2021–FY2023 lists and #51 in FY2024; up 3 since FY2024.
49 $679,911,935
Rank history: #52 in FY2021, #49 in FY2022, #49 in FY2023 and #47 in FY2024; down 2 since FY2024.
50 $672,737,792
Rank history: not on the FY2021–FY2022 lists, #65 in FY2023 and not on the FY2024 list; up 145 since FY2024.
51 $614,298,754
Rank history: not on the FY2021–FY2024 lists; new.
52 $609,333,257
Rank history: #63 in FY2021, #76 in FY2022, #51 in FY2023 and #43 in FY2024; down 9 since FY2024.
53 $605,700,018
Rank history: #39 in FY2021, #42 in FY2022, #39 in FY2023 and not on the FY2024 list; up 422 since FY2024.
54 $590,116,313
Rank history: not on the FY2021–FY2023 lists and #66 in FY2024; up 12 since FY2024.
55 $567,558,893
Rank history: #83 in FY2021, #70 in FY2022, #86 in FY2023 and not on the FY2024 list; returned.
56 $563,630,602
Rank history: not on the FY2021–FY2024 lists; up 78 since FY2024.
57 $560,283,672
Rank history: not on the FY2021–FY2024 lists; up 220 since FY2024.
58 $556,290,005
Rank history: not on the FY2021–FY2023 lists and #81 in FY2024; up 23 since FY2024.
59 $505,176,987
Rank history: #66 in FY2021, #68 in FY2022, #68 in FY2023 and #63 in FY2024; up 4 since FY2024.
60 $490,319,809
Rank history: #92 in FY2021 and not on the FY2022–FY2024 lists; returned.
61 $473,977,322
Rank history: #21 in FY2021, #24 in FY2022, #22 in FY2023 and #76 in FY2024; up 15 since FY2024.
62 $466,848,713
Rank history: not on the FY2021–FY2024 lists; new.
63 $464,553,899
Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and #50 in FY2024; down 13 since FY2024.
64 $460,843,636
Rank history: not on the FY2021–FY2024 lists; new.
65 $445,681,182
Rank history: not on the FY2021 list, #97 in FY2022, not on the FY2023 list and #67 in FY2024; up 2 since FY2024.
66 $440,273,592
Rank history: not on the FY2021–FY2024 lists; new.
67 $434,579,681
Rank history: #100 in FY2021, not on the FY2022 list, #92 in FY2023 and #72 in FY2024; up 5 since FY2024.
68 $429,996,776
Rank history: not on the FY2021–FY2024 lists; new.
69 $426,224,382
Rank history: not on the FY2021–FY2024 lists; up 237 since FY2024.
70 $421,665,172
Rank history: not on the FY2021–FY2023 lists and #92 in FY2024; up 22 since FY2024.
71 $417,998,687
Rank history: not on the FY2021–FY2023 lists and #54 in FY2024; down 17 since FY2024.
72 $405,533,451
Rank history: #65 in FY2021, #37 in FY2022, #30 in FY2023 and #20 in FY2024; down 52 since FY2024.
73 $399,384,459
Rank history: #45 in FY2021, #39 in FY2022, #33 in FY2023 and #68 in FY2024; down 5 since FY2024.
74 $398,321,440
Rank history: #79 in FY2021, #69 in FY2022, #56 in FY2023 and #62 in FY2024; down 12 since FY2024.
75 $393,407,849
Rank history: not on the FY2021–FY2024 lists; up 42 since FY2024.
76 $391,072,651
Rank history: #69 in FY2021, #81 in FY2022, #79 in FY2023 and #79 in FY2024; up 3 since FY2024.
77 $390,942,182
Rank history: not on the FY2021–FY2024 lists; up 32 since FY2024.
78 $386,257,747
Rank history: #99 in FY2021, #71 in FY2022, #74 in FY2023 and #77 in FY2024; down 1 since FY2024.
79 $382,494,688
Rank history: not on the FY2021–FY2024 lists; new.
80 $372,295,645
Rank history: #90 in FY2021, not on the FY2022–FY2023 lists and #59 in FY2024; down 21 since FY2024.
81 $370,623,188
Rank history: #57 in FY2021, #56 in FY2022, #60 in FY2023 and #61 in FY2024; down 20 since FY2024.
82 $370,262,899
Rank history: not on the FY2021–FY2024 lists; up 68 since FY2024.
83 $365,586,454
Rank history: not on the FY2021–FY2024 lists; up 145 since FY2024.
84 $359,395,085
Rank history: not on the FY2021–FY2022 lists, #96 in FY2023 and #71 in FY2024; down 13 since FY2024.
85 $357,923,444
Rank history: not on the FY2021–FY2023 lists and #35 in FY2024; down 50 since FY2024.
86 $355,861,794
Rank history: not on the FY2021–FY2024 lists; new.
87 $348,114,181
Rank history: not on the FY2021–FY2023 lists and #100 in FY2024; up 13 since FY2024.
88 $346,988,301
Rank history: not on the FY2021–FY2024 lists; up 139 since FY2024.
89 $340,062,060
Rank history: not on the FY2021–FY2024 lists; new.
90 $337,905,472
Rank history: not on the FY2021–FY2022 lists, #97 in FY2023 and #80 in FY2024; down 10 since FY2024.
91 $317,039,929
Rank history: not on the FY2021–FY2024 lists; up 194 since FY2024.
92 $315,764,025
Rank history: not on the FY2021–FY2023 lists and #73 in FY2024; down 19 since FY2024.
93 $309,958,549
Rank history: #93 in FY2021, #89 in FY2022, #88 in FY2023 and #53 in FY2024; down 40 since FY2024.
94 $303,773,305
Rank history: not on the FY2021–FY2024 lists; new.
95 $302,958,416
Rank history: #56 in FY2021, #59 in FY2022, #58 in FY2023 and #49 in FY2024; down 46 since FY2024.
96 $302,244,892
Rank history: not on the FY2021–FY2023 lists and #93 in FY2024; down 3 since FY2024.
97 $274,817,752
Rank history: not on the FY2021–FY2024 lists; up 19 since FY2024.
98 $270,778,966
Rank history: not on the FY2021–FY2024 lists; up 131 since FY2024.
99 $266,721,966
Rank history: not on the FY2021–FY2024 lists; up 158 since FY2024.
100 $262,969,170
Rank history: not on the FY2021–FY2024 lists; new.
Show 75 more

100 of 19,229 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 54

Code Net obligations Largest contractor
541 Professional, Scientific, and Technical Services $221,479,885,134 General Dynamics Corporation

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 $236 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 54 contractors in FY2025?

1. General Dynamics Corporation ($12.1B), 2. Lockheed Martin Corporation ($8.39B), 3. Booz Allen Hamilton Holding Corporation ($7.55B), 4. Leidos Holdings, Inc. ($6.16B), 5. CACI International Inc. ($4.71B), 6. Northrop Grumman Systems Corporation ($4.36B), 7. Science Applications International Corporation ($4.22B), 8. Fluor Corporation ($3.76B), 9. Deloitte ($3.72B), 10. Accenture Federal Services LLC ($3.5B).

On GovTribe

Research every contractor on this list

  • Every contract, task order and IDV they hold
  • Their subsidiaries, teammates and competitors
  • Open opportunities they're positioned for
  • Alerts when they win new work