Top 100 Contractors in PSC AR11: Space R&D Services; Space Flight, Research and Supporting Activities; Basic Research, 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 AR11: Space R&D Services; Space Flight, Research and Supporting Activities; Basic Research, FY2025.

The top 10 won 89% of PSC AR11 contract dollars from August 2025 through July 2026

Ranking facts

Contract obligations
$2,079,775,320 Net of deobligations, by contracts coded PSC AR11
Contractors
143 Parent companies with an obligation
Largest contractor
The Boeing Company $1.1 billion, 52.0% 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 $1,102,326,148
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 $484,765,911
Rank history: not on the FY2021–FY2024 lists and #2 in FY2025; up 26 since Aug 2024–Jul 2025.
3 $70,679,473
Rank history: not on the FY2021–FY2022 lists, #5 in FY2023, #5 in FY2024 and #4 in FY2025; unchanged since Aug 2024–Jul 2025.
4 $48,446,392
Rank history: #2 in FY2021, #3 in FY2022, #3 in FY2023, #6 in FY2024 and #7 in FY2025; up 6 since Aug 2024–Jul 2025.
5 $44,842,887
Rank history: #12 in FY2021, #12 in FY2022, #12 in FY2023, #9 in FY2024 and #11 in FY2025; up 8 since Aug 2024–Jul 2025.
6 $41,361,471
Rank history: #8 in FY2021, #5 in FY2022, #4 in FY2023, #14 in FY2024 and #3 in FY2025; new, not ranked in Aug 2024–Jul 2025.
7 $36,762,808
Rank history: not on the FY2021–FY2023 lists, #4 in FY2024 and #6 in FY2025; down 1 since Aug 2024–Jul 2025.
8 $28,353,561
Rank history: not on the FY2021–FY2024 lists and #5 in FY2025; new, not ranked in Aug 2024–Jul 2025.
9
Analytical Mechanics Associates Inc.
$19,110,820
Rank history: #11 in FY2021, #11 in FY2022, #11 in FY2023, #18 in FY2024 and #10 in FY2025; up 6 since Aug 2024–Jul 2025.
10 $14,548,847
Rank history: #29 in FY2021, #25 in FY2022, #23 in FY2023, #42 in FY2024 and #14 in FY2025; up 7 since Aug 2024–Jul 2025.
11 $14,402,649
Rank history: not on the FY2021–FY2023 lists, #94 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
12 $14,089,522
Rank history: not on the FY2021–FY2024 lists and #20 in FY2025; new, not ranked in Aug 2024–Jul 2025.
13 $12,679,564
Rank history: #14 in FY2021, #4 in FY2022, #9 in FY2023, #20 in FY2024 and #13 in FY2025; up 1 since Aug 2024–Jul 2025.
14 $11,839,465
Rank history: #21 in FY2021, #17 in FY2022, #24 in FY2023, #16 in FY2024 and #16 in FY2025; up 10 since Aug 2024–Jul 2025.
15 $11,341,420
Rank history: not on the FY2021–FY2022 lists, #32 in FY2023, #12 in FY2024 and #18 in FY2025; up 4 since Aug 2024–Jul 2025.
16 $9,595,032
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
17 $8,557,354
Rank history: #20 in FY2021, #33 in FY2022, #17 in FY2023, #25 in FY2024 and #15 in FY2025; up 1 since Aug 2024–Jul 2025.
18 $8,148,193
Rank history: #9 in FY2021, #10 in FY2022, #8 in FY2023, #11 in FY2024 and #12 in FY2025; down 7 since Aug 2024–Jul 2025.
19 $6,217,500
Rank history: #7 in FY2021, #16 in FY2022, #30 in FY2023, #39 in FY2024 and #24 in FY2025; new, not ranked in Aug 2024–Jul 2025.
20 $4,923,000
Rank history: not on the FY2021–FY2022 lists, #39 in FY2023, #28 in FY2024 and #19 in FY2025; up 7 since Aug 2024–Jul 2025.
21 $4,100,000
Rank history: not on the FY2021–FY2022 lists, #74 in FY2023, #31 in FY2024 and #22 in FY2025; up 13 since Aug 2024–Jul 2025.
22 $4,003,829
Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; new, not ranked in Aug 2024–Jul 2025.
23 $3,889,610
Rank history: #51 in FY2021, #21 in FY2022, not on the FY2023 list, #38 in FY2024 and #25 in FY2025; up 15 since Aug 2024–Jul 2025.
24 $3,867,857
Rank history: not on the FY2021–FY2023 lists, #65 in FY2024 and #48 in FY2025; up 33 since Aug 2024–Jul 2025.
25 $3,646,392
Rank history: not on the FY2021–FY2024 lists and #64 in FY2025; new, not ranked in Aug 2024–Jul 2025.
26 $3,605,157
Rank history: #86 in FY2021, #92 in FY2022, #15 in FY2023, #26 in FY2024 and #61 in FY2025; down 1 since Aug 2024–Jul 2025.
27
KBR Wyle Services LLC
$3,480,056
Rank history: not on the FY2021–FY2023 lists, #13 in FY2024 and #17 in FY2025; down 11 since Aug 2024–Jul 2025.
28 $3,458,993
Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; new, not ranked in Aug 2024–Jul 2025.
29
Trustees of Dartmouth College
$3,372,076
Rank history: not on the FY2021–FY2023 lists, #87 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
30 $3,340,232
Rank history: not on the FY2021–FY2022 lists, #68 in FY2023, #41 in FY2024 and #53 in FY2025; up 31 since Aug 2024–Jul 2025.
31 $2,883,952
Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; up 45 since Aug 2024–Jul 2025.
32 $2,350,681
Rank history: not on the FY2021 list, #48 in FY2022, #51 in FY2023, #43 in FY2024 and #49 in FY2025; up 14 since Aug 2024–Jul 2025.
33 $2,321,910
Rank history: not on the FY2021 list, #27 in FY2022, #26 in FY2023, #45 in FY2024 and #26 in FY2025; down 7 since Aug 2024–Jul 2025.
34 $2,277,927
Rank history: not on the FY2021–FY2023 lists, #63 in FY2024 and #34 in FY2025; up 58 since Aug 2024–Jul 2025.
35 $2,105,589
Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; up 29 since Aug 2024–Jul 2025.
36 $1,922,644
Rank history: not on the FY2021 list, #31 in FY2022, #25 in FY2023, #58 in FY2024 and #57 in FY2025; up 11 since Aug 2024–Jul 2025.
37 $1,879,315
Rank history: not on the FY2021–FY2024 lists and #30 in FY2025; up 7 since Aug 2024–Jul 2025.
38 $1,839,224
Rank history: not on the FY2021–FY2022 lists, #73 in FY2023, #61 in FY2024 and #23 in FY2025; down 17 since Aug 2024–Jul 2025.
39 $1,793,966
Rank history: #15 in FY2021, #23 in FY2022, #33 in FY2023, #27 in FY2024 and #21 in FY2025; down 10 since Aug 2024–Jul 2025.
40 $1,780,866
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
41 $1,625,324
Rank history: not on the FY2021–FY2023 lists, #62 in FY2024 and #31 in FY2025; new, not ranked in Aug 2024–Jul 2025.
42 $1,232,381
Rank history: not on the FY2021–FY2022 lists, #29 in FY2023, #72 in FY2024 and #59 in FY2025; up 26 since Aug 2024–Jul 2025.
43 $1,035,283
Rank history: not on the FY2021–FY2023 lists, #99 in FY2024 and #51 in FY2025; up 35 since Aug 2024–Jul 2025.
44 $1,024,908
Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; up 10 since Aug 2024–Jul 2025.
45 $1,000,000
Rank history: not on the FY2021–FY2023 lists, #52 in FY2024 and #32 in FY2025; up 4 since Aug 2024–Jul 2025.
46 $997,753
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
47 $941,551
Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; new, not ranked in Aug 2024–Jul 2025.
48 $928,038
Rank history: not on the FY2021–FY2023 lists, #47 in FY2024 and #47 in FY2025; down 11 since Aug 2024–Jul 2025.
49 $842,576
Rank history: not on the FY2021 list, #59 in FY2022, not on the FY2023–FY2024 lists and #41 in FY2025; up 10 since Aug 2024–Jul 2025.
50 $820,506
Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; up 3 since Aug 2024–Jul 2025.
51 $750,000
Rank history: not on the FY2021–FY2025 lists; up 72 since Aug 2024–Jul 2025.
52 $741,000
Rank history: not on the FY2021–FY2022 lists, #64 in FY2023, #70 in FY2024 and #68 in FY2025; up 29 since Aug 2024–Jul 2025.
53 $697,895
Rank history: #17 in FY2021, #36 in FY2022, #45 in FY2023, #36 in FY2024 and #56 in FY2025; up 20 since Aug 2024–Jul 2025.
54 $673,127
Rank history: not on the FY2021 list, #46 in FY2022, not on the FY2023 list, #81 in FY2024 and #74 in FY2025; new, not ranked in Aug 2024–Jul 2025.
55 $659,875
Rank history: not on the FY2021 list, #83 in FY2022, #58 in FY2023, not on the FY2024 list and #69 in FY2025; new, not ranked in Aug 2024–Jul 2025.
56 $621,056
Rank history: not on the FY2021–FY2022 lists, #49 in FY2023, #68 in FY2024 and #40 in FY2025; down 8 since Aug 2024–Jul 2025.
57 $614,246
Rank history: not on the FY2021 list, #49 in FY2022, #55 in FY2023, #46 in FY2024 and #36 in FY2025; down 18 since Aug 2024–Jul 2025.
58 $554,771
Rank history: not on the FY2021–FY2022 lists, #41 in FY2023, not on the FY2024 list and #46 in FY2025; up 113 since Aug 2024–Jul 2025.
59 $500,000
Rank history: not on the FY2021–FY2022 lists, #61 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
60 $499,512
Rank history: not on the FY2021 list, #60 in FY2022, #63 in FY2023, not on the FY2024 list and #82 in FY2025; new, not ranked in Aug 2024–Jul 2025.
61 $488,878
Rank history: #46 in FY2021 and not on the FY2022–FY2025 lists; up 2 since Aug 2024–Jul 2025.
62 $450,188
Rank history: not on the FY2021–FY2022 lists, #95 in FY2023, not on the FY2024 list and #88 in FY2025; up 84 since Aug 2024–Jul 2025.
63 $441,953
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
64 $398,548
Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; up 44 since Aug 2024–Jul 2025.
65 $395,825
Rank history: not on the FY2021–FY2024 lists and #94 in FY2025; up 45 since Aug 2024–Jul 2025.
66 $393,700
Rank history: not on the FY2021–FY2024 lists and #96 in FY2025; up 45 since Aug 2024–Jul 2025.
67 $389,059
Rank history: not on the FY2021–FY2024 lists and #97 in FY2025; up 45 since Aug 2024–Jul 2025.
68 $388,670
Rank history: not on the FY2021–FY2024 lists and #98 in FY2025; new, not ranked in Aug 2024–Jul 2025.
69 $374,995
Rank history: not on the FY2021–FY2024 lists and #99 in FY2025; new, not ranked in Aug 2024–Jul 2025.
70 $374,924
Rank history: not on the FY2021 list, #44 in FY2022, #48 in FY2023, #74 in FY2024 and #71 in FY2025; up 1 since Aug 2024–Jul 2025.
71 $370,495
Rank history: #70 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
72 $367,948
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
73 $345,933
Rank history: not on the FY2021–FY2025 lists; up 71 since Aug 2024–Jul 2025.
74 $334,525
Rank history: not on the FY2021 list, #32 in FY2022, #46 in FY2023, #44 in FY2024 and #45 in FY2025; down 19 since Aug 2024–Jul 2025.
75 $326,119
Rank history: not on the FY2021–FY2025 lists; up 118 since Aug 2024–Jul 2025.
76
Desert Community College District
$293,847
Rank history: not on the FY2021–FY2025 lists; up 50 since Aug 2024–Jul 2025.
77 $291,734
Rank history: not on the FY2021–FY2025 lists; up 48 since Aug 2024–Jul 2025.
78 $289,959
Rank history: not on the FY2021–FY2025 lists; up 49 since Aug 2024–Jul 2025.
79 $278,090
Rank history: not on the FY2021–FY2025 lists; up 51 since Aug 2024–Jul 2025.
80 $278,040
Rank history: not on the FY2021–FY2025 lists; up 51 since Aug 2024–Jul 2025.
81 $270,400
Rank history: not on the FY2021–FY2025 lists; up 55 since Aug 2024–Jul 2025.
82 $269,155
Rank history: not on the FY2021–FY2025 lists; up 52 since Aug 2024–Jul 2025.
83 $268,021
Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; down 32 since Aug 2024–Jul 2025.
84 $266,441
Rank history: not on the FY2021–FY2022 lists, #77 in FY2023, #80 in FY2024 and #77 in FY2025; down 7 since Aug 2024–Jul 2025.
85 $248,264
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
86 $239,913
Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; down 26 since Aug 2024–Jul 2025.
87
The University of Toledo
$238,652
Rank history: not on the FY2021–FY2023 lists, #40 in FY2024 and #33 in FY2025; down 52 since Aug 2024–Jul 2025.
88 $232,493
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
89 $220,000
Rank history: not on the FY2021–FY2025 lists; up 129 since Aug 2024–Jul 2025.
90 $210,400
Rank history: not on the FY2021 list, #57 in FY2022, #71 in FY2023 and not on the FY2024–FY2025 lists; up 15 since Aug 2024–Jul 2025.
91 $208,837
Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
92 $207,022
Rank history: not on the FY2021–FY2025 lists; up 74 since Aug 2024–Jul 2025.
93 $198,003
Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; up 9 since Aug 2024–Jul 2025.
94 $196,000
Rank history: #76 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
95 $188,490
Rank history: not on the FY2021–FY2025 lists; up 66 since Aug 2024–Jul 2025.
96 $170,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
97 $164,042
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
98 $156,528
Rank history: not on the FY2021–FY2024 lists and #72 in FY2025; down 16 since Aug 2024–Jul 2025.
99 $154,016
Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; up 14 since Aug 2024–Jul 2025.
100 $152,870
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
Show 75 more

100 of 143 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 $2.12 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 AR11 contractors in Aug 2025–Jul 2026?

1. The Boeing Company ($1.1B), 2. Johns Hopkins University ($485M), 3. Adnet Systems Inc. ($70.7M), 4. Northrop Grumman Systems Corporation ($48.4M), 5. California Institute of Technology ($44.8M), 6. University System of Maryland ($41.4M), 7. Peraton Inc. ($36.8M), 8. The Regents of the University of California ($28.4M), 9. Analytical Mechanics Associates Inc. ($19.1M), 10. Southwest Research Institute ($14.5M).

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