Top 100 Contractors in PSC AC11: National Defense R&D Services; Department of Defense – Military; Basic Research, FY2025

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

The top 10 won 72% of FY2025 PSC AC11 contract dollars

Ranking facts

Contract obligations
$1,780,975,073 Net of deobligations, by contracts coded PSC AC11
Contractors
499 Parent companies with an obligation
Largest contractor
Johns Hopkins University $354 million, 19.1% of obligations
Data as of

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank Contractor Net obligations Share Trend
1 $353,822,011
Rank history: not on the FY2021–FY2024 lists; new.
2 $308,909,140
Rank history: #1 in FY2021, #3 in FY2022, #10 in FY2023 and #1 in FY2024; down 1 since FY2024.
3 $286,149,023
Rank history: #2 in FY2021, #4 in FY2022, #1 in FY2023 and #2 in FY2024; down 1 since FY2024.
4 $167,455,955
Rank history: #94 in FY2021, #82 in FY2022, #3 in FY2023 and #3 in FY2024; down 1 since FY2024.
5 $48,430,298
Rank history: #3 in FY2021, #2 in FY2022, #4 in FY2023 and #5 in FY2024; unchanged since FY2024.
6 $46,636,622
Rank history: not on the FY2021–FY2024 lists; new.
7 $43,052,530
Rank history: #16 in FY2021, #5 in FY2022, #12 in FY2023 and #7 in FY2024; unchanged since FY2024.
8 $35,210,148
Rank history: not on the FY2021–FY2024 lists; new.
9 $22,713,628
Rank history: not on the FY2021–FY2023 lists and #6 in FY2024; down 3 since FY2024.
10 $21,147,321
Rank history: not on the FY2021–FY2023 lists and #23 in FY2024; up 13 since FY2024.
11 $17,905,608
Rank history: #49 in FY2021, not on the FY2022 list, #11 in FY2023 and #16 in FY2024; up 5 since FY2024.
12 $15,346,963
Rank history: not on the FY2021–FY2024 lists; new.
13 $15,233,872
Rank history: #10 in FY2021, #36 in FY2022, #7 in FY2023 and #13 in FY2024; unchanged since FY2024.
14 $14,800,890
Rank history: #5 in FY2021, #9 in FY2022, #16 in FY2023 and #10 in FY2024; down 4 since FY2024.
15 $14,224,250
Rank history: not on the FY2021–FY2022 lists, #34 in FY2023 and #21 in FY2024; up 6 since FY2024.
16 $13,449,627
Rank history: not on the FY2021–FY2023 lists and #44 in FY2024; up 28 since FY2024.
17
World Wide Technology LLC
$12,910,204
Rank history: not on the FY2021–FY2024 lists; new.
18
JJR Solutions LLC
$11,824,390
Rank history: not on the FY2021–FY2024 lists; new.
19 $11,221,622
Rank history: #7 in FY2021, #14 in FY2022, #14 in FY2023 and #20 in FY2024; up 1 since FY2024.
20 $10,876,780
Rank history: #17 in FY2021, #6 in FY2022, #8 in FY2023 and #11 in FY2024; down 9 since FY2024.
21 $10,567,372
Rank history: not on the FY2021–FY2022 lists, #17 in FY2023 and not on the FY2024 list; up 197 since FY2024.
22 $7,433,066
Rank history: not on the FY2021–FY2023 lists and #28 in FY2024; up 6 since FY2024.
23 $6,933,165
Rank history: not on the FY2021–FY2024 lists; new.
24 $6,389,353
Rank history: #93 in FY2021, not on the FY2022–FY2023 lists and #25 in FY2024; up 1 since FY2024.
25 $6,068,750
Rank history: not on the FY2021–FY2023 lists and #61 in FY2024; up 36 since FY2024.
26 $5,780,534
Rank history: #26 in FY2021, #25 in FY2022, not on the FY2023 list and #50 in FY2024; up 24 since FY2024.
27 $5,759,997
Rank history: not on the FY2021 list, #86 in FY2022, #56 in FY2023 and #55 in FY2024; up 28 since FY2024.
28 $5,592,543
Rank history: not on the FY2021–FY2024 lists; up 95 since FY2024.
29 $5,567,030
Rank history: not on the FY2021–FY2023 lists and #31 in FY2024; up 2 since FY2024.
30 $5,537,505
Rank history: #11 in FY2021, #16 in FY2022, #26 in FY2023 and #27 in FY2024; down 3 since FY2024.
31 $4,987,786
Rank history: not on the FY2021–FY2022 lists, #99 in FY2023 and not on the FY2024 list; returned.
32 $4,887,917
Rank history: not on the FY2021–FY2024 lists; new.
33 $4,855,155
Rank history: not on the FY2021 list, #18 in FY2022, #19 in FY2023 and #24 in FY2024; down 9 since FY2024.
34
Anduril Industries Inc.
$4,421,019
Rank history: not on the FY2021–FY2022 lists, #27 in FY2023 and #9 in FY2024; down 25 since FY2024.
35 $4,366,511
Rank history: #27 in FY2021 and not on the FY2022–FY2024 lists; up 102 since FY2024.
36 $4,115,989
Rank history: not on the FY2021–FY2024 lists; up 269 since FY2024.
37 $4,013,867
Rank history: not on the FY2021–FY2024 lists; new.
38 $3,999,907
Rank history: not on the FY2021–FY2024 lists; new.
39 $3,826,834
Rank history: not on the FY2021–FY2022 lists, #15 in FY2023 and not on the FY2024 list; returned.
40 $3,755,141
Rank history: not on the FY2021–FY2022 lists, #92 in FY2023 and #46 in FY2024; up 6 since FY2024.
41 $3,462,240
Rank history: not on the FY2021–FY2024 lists; up 98 since FY2024.
42 $3,434,696
Rank history: not on the FY2021–FY2024 lists; up 73 since FY2024.
43 $3,333,269
Rank history: not on the FY2021–FY2022 lists, #24 in FY2023 and not on the FY2024 list; up 61 since FY2024.
44
Jacobs Government Services Company Through Amentum Technology, Inc.
$3,256,860
Rank history: not on the FY2021–FY2023 lists and #8 in FY2024; down 36 since FY2024.
45 $3,137,182
Rank history: #79 in FY2021, not on the FY2022–FY2023 lists and #49 in FY2024; up 4 since FY2024.
46 $3,060,962
Rank history: not on the FY2021–FY2023 lists and #35 in FY2024; down 11 since FY2024.
47 $2,846,408
Rank history: not on the FY2021–FY2024 lists; new.
48 $2,587,621
Rank history: not on the FY2021–FY2022 lists, #93 in FY2023 and not on the FY2024 list; up 53 since FY2024.
49 $2,566,757
Rank history: not on the FY2021–FY2023 lists and #45 in FY2024; down 4 since FY2024.
50 $2,543,810
Rank history: not on the FY2021–FY2024 lists; new.
51 $2,418,124
Rank history: not on the FY2021–FY2022 lists, #29 in FY2023 and #41 in FY2024; down 10 since FY2024.
52 $2,299,587
Rank history: not on the FY2021–FY2024 lists; new.
53 $2,069,004
Rank history: not on the FY2021–FY2024 lists; up 114 since FY2024.
54 $2,056,566
Rank history: not on the FY2021–FY2024 lists; up 65 since FY2024.
55 $2,041,239
Rank history: not on the FY2021–FY2022 lists, #28 in FY2023 and not on the FY2024 list; up 203 since FY2024.
56 $1,975,596
Rank history: not on the FY2021 list, #90 in FY2022, #67 in FY2023 and #56 in FY2024; unchanged since FY2024.
57 $1,944,647
Rank history: #20 in FY2021, #24 in FY2022, #33 in FY2023 and #34 in FY2024; down 23 since FY2024.
58 $1,927,741
Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and #72 in FY2024; up 14 since FY2024.
59 $1,919,450
Rank history: not on the FY2021–FY2024 lists; new.
60 $1,897,171
Rank history: not on the FY2021–FY2024 lists; up 148 since FY2024.
61 $1,895,093
Rank history: not on the FY2021–FY2022 lists, #73 in FY2023 and not on the FY2024 list; up 169 since FY2024.
62 $1,856,991
Rank history: not on the FY2021–FY2023 lists and #38 in FY2024; down 24 since FY2024.
63 $1,843,059
Rank history: not on the FY2021 list, #45 in FY2022, #65 in FY2023 and #74 in FY2024; up 11 since FY2024.
64 $1,839,991
Rank history: not on the FY2021–FY2024 lists; new.
65
Soar Technology Inc. Through Accelint AI, LLC
$1,820,000
Rank history: not on the FY2021–FY2023 lists and #91 in FY2024; up 26 since FY2024.
66
Trail of Bits Inc.
$1,812,373
Rank history: not on the FY2021–FY2024 lists; up 103 since FY2024.
67 $1,809,839
Rank history: not on the FY2021–FY2024 lists; up 63 since FY2024.
68 $1,799,938
Rank history: not on the FY2021–FY2024 lists; new.
69 $1,799,915
Rank history: not on the FY2021–FY2024 lists; up 113 since FY2024.
70 $1,799,745
Rank history: not on the FY2021–FY2024 lists; up 209 since FY2024.
71 $1,799,737
Rank history: #38 in FY2021, not on the FY2022–FY2023 lists and #85 in FY2024; up 14 since FY2024.
72 $1,796,478
Rank history: not on the FY2021–FY2024 lists; up 154 since FY2024.
73 $1,795,872
Rank history: not on the FY2021–FY2023 lists and #47 in FY2024; down 26 since FY2024.
74 $1,741,969
Rank history: not on the FY2021–FY2024 lists; up 47 since FY2024.
75 $1,728,355
Rank history: #12 in FY2021, not on the FY2022–FY2023 lists and #59 in FY2024; down 16 since FY2024.
76
Cornerstone Research Group Inc
$1,682,738
Rank history: not on the FY2021–FY2024 lists; up 31 since FY2024.
77 $1,670,105
Rank history: #51 in FY2021, #37 in FY2022, #61 in FY2023 and #90 in FY2024; up 13 since FY2024.
78 $1,653,224
Rank history: not on the FY2021 list, #79 in FY2022, not on the FY2023 list and #70 in FY2024; down 8 since FY2024.
79 $1,610,314
Rank history: #33 in FY2021, #23 in FY2022, #46 in FY2023 and #58 in FY2024; down 21 since FY2024.
80 $1,523,483
Rank history: not on the FY2021–FY2023 lists and #71 in FY2024; down 9 since FY2024.
81 $1,485,499
Rank history: not on the FY2021–FY2023 lists and #30 in FY2024; down 51 since FY2024.
82 $1,432,787
Rank history: not on the FY2021–FY2024 lists; up 54 since FY2024.
83 $1,430,000
Rank history: not on the FY2021–FY2024 lists; new.
84 $1,429,979
Rank history: not on the FY2021–FY2024 lists; up 148 since FY2024.
85
Intellisense Systems Inc
$1,426,430
Rank history: #24 in FY2021, #33 in FY2022, #60 in FY2023 and #73 in FY2024; down 12 since FY2024.
86 $1,389,991
Rank history: not on the FY2021–FY2024 lists; up 91 since FY2024.
87 $1,389,779
Rank history: not on the FY2021–FY2024 lists; new.
88 $1,386,357
Rank history: not on the FY2021–FY2024 lists; new.
89 $1,379,643
Rank history: not on the FY2021–FY2023 lists and #75 in FY2024; down 14 since FY2024.
90 $1,351,894
Rank history: not on the FY2021 list, #29 in FY2022, #37 in FY2023 and #60 in FY2024; down 30 since FY2024.
91
Sossec Inc.
$1,351,509
Rank history: not on the FY2021–FY2024 lists; new.
92
Vysnova Partners LLC
$1,283,569
Rank history: not on the FY2021–FY2023 lists and #99 in FY2024; up 7 since FY2024.
93 $1,242,866
Rank history: not on the FY2021–FY2023 lists and #94 in FY2024; up 1 since FY2024.
94 $1,232,847
Rank history: not on the FY2021–FY2024 lists; new.
95 $1,213,934
Rank history: not on the FY2021–FY2024 lists; new.
96
Mile Two LLC
$1,199,939
Rank history: not on the FY2021–FY2024 lists; new.
97 $1,199,926
Rank history: not on the FY2021–FY2024 lists; new.
98 $1,199,877
Rank history: not on the FY2021–FY2024 lists; new.
99 $1,199,045
Rank history: not on the FY2021–FY2024 lists; new.
100 $1,198,135
Rank history: not on the FY2021–FY2024 lists; new.
Show 75 more

100 of 499 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 $1.85 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. 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 AC11 contractors in FY2025?

1. Johns Hopkins University ($354M), 2. RTX Corporation ($309M), 3. Lockheed Martin Corporation ($286M), 4. Booz Allen Hamilton Holding Corporation ($167M), 5. Leidos Holdings, Inc. ($48.4M), 6. Asgn Incorporated ($46.6M), 7. The Boeing Company ($43.1M), 8. Amentum Holdings, Inc. ($35.2M), 9. Qinetiq Inc. ($22.7M), 10. Quantech Services Inc. ($21.1M).

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