Top 100 Contractors in PSC AC11: National Defense R&D Services; Department of Defense – Military; Basic Research, Jul 2025–Jun 2026

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 72% of PSC AC11 contract dollars from July 2025 through June 2026

Ranking facts

Contract obligations
$3,158,892,983 Net of deobligations, by contracts coded PSC AC11
Contractors
426 Parent companies with an obligation
Largest contractor
Lockheed Martin Corporation $785 million, 23.9% 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 $784,708,469
Rank history: #2 in FY2021, #4 in FY2022, #1 in FY2023, #2 in FY2024 and #3 in FY2025; up 2 since Jul 2024–Jun 2025.
2 $493,924,545
Rank history: #1 in FY2021, #3 in FY2022, #10 in FY2023, #1 in FY2024 and #2 in FY2025; down 1 since Jul 2024–Jun 2025.
3 $300,000,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
4 $183,121,535
Rank history: #94 in FY2021, #82 in FY2022, #3 in FY2023, #3 in FY2024 and #4 in FY2025; unchanged since Jul 2024–Jun 2025.
5 $180,717,164
Rank history: not on the FY2021–FY2024 lists and #1 in FY2025; up 99 since Jul 2024–Jun 2025.
6 $150,000,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
7 $90,000,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
8 $72,307,601
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
9 $60,728,459
Rank history: not on the FY2021–FY2024 lists and #12 in FY2025; up 20 since Jul 2024–Jun 2025.
10 $55,734,141
Rank history: #3 in FY2021, #2 in FY2022, #4 in FY2023, #5 in FY2024 and #5 in FY2025; down 5 since Jul 2024–Jun 2025.
11 $51,457,963
Rank history: #49 in FY2021, not on the FY2022 list, #11 in FY2023, #16 in FY2024 and #11 in FY2025; up 17 since Jul 2024–Jun 2025.
12
Asgn Incorporated Through ECS Federal, LLC
$46,768,899
Rank history: not on the FY2021–FY2024 lists and #6 in FY2025; down 4 since Jul 2024–Jun 2025.
13 $45,450,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
14 $45,206,417
Rank history: #16 in FY2021, #5 in FY2022, #12 in FY2023, #7 in FY2024 and #7 in FY2025; down 5 since Jul 2024–Jun 2025.
15
JJR Solutions LLC
$30,390,688
Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; up 6 since Jul 2024–Jun 2025.
16
World Wide Technology LLC
$21,984,356
Rank history: not on the FY2021–FY2024 lists and #17 in FY2025; up 111 since Jul 2024–Jun 2025.
17 $21,445,000
Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; up 226 since Jul 2024–Jun 2025.
18 $20,132,428
Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; up 54 since Jul 2024–Jun 2025.
19 $19,449,021
Rank history: not on the FY2021–FY2022 lists, #27 in FY2023, #9 in FY2024 and #34 in FY2025; down 7 since Jul 2024–Jun 2025.
20 $18,508,679
Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; down 13 since Jul 2024–Jun 2025.
21 $18,330,904
Rank history: not on the FY2021–FY2023 lists, #23 in FY2024 and #10 in FY2025; down 8 since Jul 2024–Jun 2025.
22 $18,168,131
Rank history: #17 in FY2021, #6 in FY2022, #8 in FY2023, #11 in FY2024 and #20 in FY2025; down 7 since Jul 2024–Jun 2025.
23 $15,264,899
Rank history: not on the FY2021–FY2024 lists and #95 in FY2025; new, not ranked in Jul 2024–Jun 2025.
24 $14,073,776
Rank history: not on the FY2021–FY2023 lists, #44 in FY2024 and #16 in FY2025; down 1 since Jul 2024–Jun 2025.
25 $12,886,061
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
26 $12,146,473
Rank history: #5 in FY2021, #9 in FY2022, #16 in FY2023, #10 in FY2024 and #14 in FY2025; down 15 since Jul 2024–Jun 2025.
27 $11,827,144
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
28 $10,016,736
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
29 $9,844,519
Rank history: #10 in FY2021, #36 in FY2022, #7 in FY2023, #13 in FY2024 and #13 in FY2025; down 19 since Jul 2024–Jun 2025.
30 $9,646,949
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
31 $9,222,275
Rank history: not on the FY2021–FY2022 lists, #34 in FY2023, #21 in FY2024 and #15 in FY2025; down 11 since Jul 2024–Jun 2025.
32 $7,182,621
Rank history: not on the FY2021–FY2023 lists, #28 in FY2024 and #22 in FY2025; down 8 since Jul 2024–Jun 2025.
33 $6,639,999
Rank history: not on the FY2021 list, #86 in FY2022, #56 in FY2023, #55 in FY2024 and #27 in FY2025; up 59 since Jul 2024–Jun 2025.
34 $6,512,228
Rank history: not on the FY2021–FY2025 lists; up 109 since Jul 2024–Jun 2025.
35 $6,260,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
36 $6,255,709
Rank history: #7 in FY2021, #14 in FY2022, #14 in FY2023, #20 in FY2024 and #19 in FY2025; down 19 since Jul 2024–Jun 2025.
37 $5,671,998
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
38 $5,580,388
Rank history: not on the FY2021–FY2024 lists and #32 in FY2025; up 62 since Jul 2024–Jun 2025.
39 $5,568,750
Rank history: not on the FY2021–FY2023 lists, #61 in FY2024 and #25 in FY2025; up 2 since Jul 2024–Jun 2025.
40 $5,347,185
Rank history: #26 in FY2021, #25 in FY2022, not on the FY2023 list, #50 in FY2024 and #26 in FY2025; down 8 since Jul 2024–Jun 2025.
41 $5,315,765
Rank history: not on the FY2021–FY2023 lists, #31 in FY2024 and #29 in FY2025; down 16 since Jul 2024–Jun 2025.
42 $5,158,552
Rank history: #11 in FY2021, #16 in FY2022, #26 in FY2023, #27 in FY2024 and #30 in FY2025; down 11 since Jul 2024–Jun 2025.
43 $5,045,766
Rank history: not on the FY2021–FY2023 lists, #6 in FY2024 and #9 in FY2025; down 37 since Jul 2024–Jun 2025.
44 $4,997,399
Rank history: not on the FY2021 list, #18 in FY2022, #19 in FY2023, #24 in FY2024 and #33 in FY2025; down 10 since Jul 2024–Jun 2025.
45 $4,823,480
Rank history: not on the FY2021–FY2022 lists, #99 in FY2023, not on the FY2024 list and #31 in FY2025; up 215 since Jul 2024–Jun 2025.
46 $4,625,587
Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; down 19 since Jul 2024–Jun 2025.
47 $4,474,588
Rank history: #93 in FY2021, not on the FY2022–FY2023 lists, #25 in FY2024 and #24 in FY2025; down 17 since Jul 2024–Jun 2025.
48 $4,286,652
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
49 $4,060,962
Rank history: not on the FY2021–FY2023 lists, #35 in FY2024 and #46 in FY2025; up 17 since Jul 2024–Jun 2025.
50 $4,013,867
Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; new, not ranked in Jul 2024–Jun 2025.
51 $3,999,907
Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; new, not ranked in Jul 2024–Jun 2025.
52 $3,969,677
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
53 $3,826,834
Rank history: not on the FY2021–FY2022 lists, #15 in FY2023, not on the FY2024 list and #39 in FY2025; new, not ranked in Jul 2024–Jun 2025.
54
MZA Associates Corporation
$3,826,404
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
55 $3,789,640
Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; down 19 since Jul 2024–Jun 2025.
56 $3,719,758
Rank history: #27 in FY2021, not on the FY2022–FY2024 lists and #35 in FY2025; down 16 since Jul 2024–Jun 2025.
57 $3,049,330
Rank history: not on the FY2021–FY2022 lists, #24 in FY2023, not on the FY2024 list and #43 in FY2025; up 4 since Jul 2024–Jun 2025.
58 $3,003,628
Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; down 9 since Jul 2024–Jun 2025.
59 $2,906,884
Rank history: not on the FY2021–FY2023 lists, #45 in FY2024 and #49 in FY2025; down 14 since Jul 2024–Jun 2025.
60 $2,871,721
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
61
Astronetx PBC
$2,858,000
Rank history: not on the FY2021–FY2023 lists, #37 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
62 $2,787,277
Rank history: #79 in FY2021, not on the FY2022–FY2023 lists, #49 in FY2024 and #45 in FY2025; down 10 since Jul 2024–Jun 2025.
63 $2,760,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
64 $2,753,683
Rank history: not on the FY2021–FY2023 lists, #75 in FY2024 and #89 in FY2025; up 81 since Jul 2024–Jun 2025.
65 $2,700,000
Rank history: not on the FY2021 list, #97 in FY2022 and not on the FY2023–FY2025 lists; up 99 since Jul 2024–Jun 2025.
66 $2,484,158
Rank history: not on the FY2021–FY2024 lists and #47 in FY2025; down 29 since Jul 2024–Jun 2025.
67 $2,381,292
Rank history: not on the FY2021–FY2024 lists and #54 in FY2025; up 10 since Jul 2024–Jun 2025.
68 $2,345,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
69 $2,332,317
Rank history: not on the FY2021–FY2022 lists, #29 in FY2023, #41 in FY2024 and #51 in FY2025; down 26 since Jul 2024–Jun 2025.
70 $2,301,205
Rank history: not on the FY2021–FY2022 lists, #93 in FY2023, not on the FY2024 list and #48 in FY2025; down 1 since Jul 2024–Jun 2025.
71 $2,294,869
Rank history: not on the FY2021–FY2025 lists; up 77 since Jul 2024–Jun 2025.
72 $2,239,996
Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; down 37 since Jul 2024–Jun 2025.
73 $2,199,475
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
74 $2,181,212
Rank history: not on the FY2021–FY2022 lists, #28 in FY2023, not on the FY2024 list and #55 in FY2025; up 248 since Jul 2024–Jun 2025.
75 $2,094,987
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
76
Oewaves, Inc.
$2,094,008
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
77 $2,083,235
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
78 $2,047,855
Rank history: not on the FY2021–FY2023 lists, #17 in FY2024 and not on the FY2025 list; down 60 since Jul 2024–Jun 2025.
79 $2,039,497
Rank history: not on the FY2021 list, #47 in FY2022, not on the FY2023 list, #40 in FY2024 and not on the FY2025 list; down 25 since Jul 2024–Jun 2025.
80 $2,022,446
Rank history: not on the FY2021–FY2023 lists, #38 in FY2024 and #62 in FY2025; up 1 since Jul 2024–Jun 2025.
81 $1,983,396
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
82 $1,919,450
Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; new, not ranked in Jul 2024–Jun 2025.
83 $1,897,171
Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; new, not ranked in Jul 2024–Jun 2025.
84 $1,849,338
Rank history: #51 in FY2021, #37 in FY2022, #61 in FY2023, #90 in FY2024 and #77 in FY2025; up 18 since Jul 2024–Jun 2025.
85 $1,799,938
Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; new, not ranked in Jul 2024–Jun 2025.
86 $1,799,915
Rank history: not on the FY2021–FY2024 lists and #69 in FY2025; new, not ranked in Jul 2024–Jun 2025.
87 $1,799,745
Rank history: not on the FY2021–FY2024 lists and #70 in FY2025; new, not ranked in Jul 2024–Jun 2025.
88 $1,799,737
Rank history: #38 in FY2021, not on the FY2022–FY2023 lists, #85 in FY2024 and #71 in FY2025; up 6 since Jul 2024–Jun 2025.
89 $1,799,361
Rank history: not on the FY2021–FY2022 lists, #92 in FY2023, #46 in FY2024 and #40 in FY2025; down 45 since Jul 2024–Jun 2025.
90 $1,799,200
Rank history: not on the FY2021–FY2024 lists and #76 in FY2025; up 11 since Jul 2024–Jun 2025.
91 $1,795,872
Rank history: not on the FY2021–FY2023 lists, #47 in FY2024 and #73 in FY2025; down 7 since Jul 2024–Jun 2025.
92 $1,730,291
Rank history: not on the FY2021–FY2024 lists and #82 in FY2025; up 21 since Jul 2024–Jun 2025.
93 $1,701,192
Rank history: not on the FY2021–FY2023 lists, #89 in FY2024 and not on the FY2025 list; down 7 since Jul 2024–Jun 2025.
94 $1,696,241
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
95 $1,651,003
Rank history: not on the FY2021–FY2024 lists and #53 in FY2025; down 27 since Jul 2024–Jun 2025.
96 $1,542,857
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
97 $1,500,000
Rank history: not on the FY2021–FY2022 lists, #36 in FY2023, #72 in FY2024 and #58 in FY2025; up 2 since Jul 2024–Jun 2025.
98 $1,499,947
Rank history: not on the FY2021–FY2023 lists, #83 in FY2024 and not on the FY2025 list; down 9 since Jul 2024–Jun 2025.
99 $1,485,302
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
100 $1,474,157
Rank history: not on the FY2021 list, #79 in FY2022, not on the FY2023 list, #70 in FY2024 and #78 in FY2025; down 9 since Jul 2024–Jun 2025.
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100 of 426 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 $3.29 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.
  • 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 Jul 2024–Jun 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 AC11 contractors in Jul 2025–Jun 2026?

1. Lockheed Martin Corporation ($785M), 2. RTX Corporation ($494M), 3. Atlantic Alumina Company LLC ($300M), 4. Booz Allen Hamilton Holding Corporation ($183M), 5. Johns Hopkins University ($181M), 6. Crucible JV LLC ($150M), 7. Global Precision Research, LLC ($90M), 8. University of Dayton ($72.3M), 9. Yulista Support Services LLC ($60.7M), 10. Leidos Holdings, Inc. ($55.7M).

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