Top 100 Contractors in PSC AJ11: General Science and Technology R&D Services; General Science and Technology; Basic Research, FY2025

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

The top 10 won 34% of FY2025 PSC AJ11 contract dollars

Ranking facts

Contract obligations
$2,133,425,174 Net of deobligations, by contracts coded PSC AJ11
Contractors
859 Parent companies with an obligation
Largest contractor
Georgia TECH Research Corp $278 million, 12.8% 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 $278,377,267
Rank history: #2 in FY2021, #1 in FY2022, #1 in FY2023 and #12 in FY2024; up 11 since FY2024.
2 $103,621,318
Rank history: #12 in FY2021, #19 in FY2022, #8 in FY2023 and #40 in FY2024; up 38 since FY2024.
3 $61,710,034
Rank history: #5 in FY2021, #3 in FY2022, #5 in FY2023 and #7 in FY2024; up 4 since FY2024.
4 $52,286,543
Rank history: not on the FY2021 list, #58 in FY2022, #37 in FY2023 and #8 in FY2024; up 4 since FY2024.
5 $49,449,254
Rank history: #22 in FY2021, #6 in FY2022, #23 in FY2023 and #11 in FY2024; up 6 since FY2024.
6 $40,901,466
Rank history: not on the FY2021–FY2024 lists; new.
7 $40,500,396
Rank history: not on the FY2021–FY2024 lists; new.
8 $37,759,894
Rank history: #1 in FY2021, #4 in FY2022, #2 in FY2023 and #2 in FY2024; down 6 since FY2024.
9 $35,921,253
Rank history: not on the FY2021 list, #59 in FY2022, #75 in FY2023 and #22 in FY2024; up 13 since FY2024.
10 $31,464,091
Rank history: #7 in FY2021, #13 in FY2022, #20 in FY2023 and #23 in FY2024; up 13 since FY2024.
11 $29,393,252
Rank history: not on the FY2021–FY2024 lists; new.
12 $25,679,102
Rank history: #21 in FY2021, #17 in FY2022, #13 in FY2023 and #48 in FY2024; up 36 since FY2024.
13 $25,409,320
Rank history: #46 in FY2021, #37 in FY2022, #48 in FY2023 and #42 in FY2024; up 29 since FY2024.
14 $24,144,080
Rank history: #15 in FY2021, #12 in FY2022, #21 in FY2023 and #17 in FY2024; up 3 since FY2024.
15 $23,404,226
Rank history: not on the FY2021–FY2022 lists, #35 in FY2023 and #15 in FY2024; unchanged since FY2024.
16 $22,268,153
Rank history: #14 in FY2021, #21 in FY2022, #14 in FY2023 and not on the FY2024 list; up 320 since FY2024.
17 $21,113,469
Rank history: #30 in FY2021, #8 in FY2022, #10 in FY2023 and #6 in FY2024; down 11 since FY2024.
18 $20,420,693
Rank history: #32 in FY2021, #20 in FY2022, #24 in FY2023 and not on the FY2024 list; returned.
19 $19,537,593
Rank history: not on the FY2021–FY2024 lists; up 198 since FY2024.
20 $18,760,615
Rank history: #13 in FY2021, #18 in FY2022, #30 in FY2023 and #4 in FY2024; down 16 since FY2024.
21 $18,634,478
Rank history: #9 in FY2021, #7 in FY2022, #15 in FY2023 and #19 in FY2024; down 2 since FY2024.
22 $17,817,721
Rank history: #76 in FY2021, #46 in FY2022, #43 in FY2023 and #50 in FY2024; up 28 since FY2024.
23 $17,207,069
Rank history: #34 in FY2021, #45 in FY2022, #36 in FY2023 and #32 in FY2024; up 9 since FY2024.
24 $16,387,174
Rank history: not on the FY2021–FY2022 lists, #26 in FY2023 and #85 in FY2024; up 61 since FY2024.
25 $16,304,480
Rank history: not on the FY2021–FY2023 lists and #9 in FY2024; down 16 since FY2024.
26 $15,896,753
Rank history: #19 in FY2021, #16 in FY2022, #25 in FY2023 and #24 in FY2024; down 2 since FY2024.
27 $15,836,900
Rank history: #45 in FY2021, #10 in FY2022, #7 in FY2023 and #18 in FY2024; down 9 since FY2024.
28
University of Illinois 2 awardees
$15,483,794
Rank history: not on the FY2021–FY2024 lists; up 89 since FY2024.
29 $15,169,881
Rank history: not on the FY2021 list, #87 in FY2022, not on the FY2023 list and #49 in FY2024; up 20 since FY2024.
30 $14,896,629
Rank history: #31 in FY2021, #30 in FY2022, #33 in FY2023 and #25 in FY2024; down 5 since FY2024.
31 $14,822,571
Rank history: not on the FY2021 list, #63 in FY2022, #27 in FY2023 and #26 in FY2024; down 5 since FY2024.
32 $14,666,815
Rank history: #68 in FY2021, #61 in FY2022, #34 in FY2023 and #36 in FY2024; up 4 since FY2024.
33 $14,508,809
Rank history: #61 in FY2021, not on the FY2022 list, #93 in FY2023 and #30 in FY2024; down 3 since FY2024.
34 $14,285,325
Rank history: not on the FY2021–FY2023 lists and #54 in FY2024; up 20 since FY2024.
35 $13,451,643
Rank history: #8 in FY2021, #9 in FY2022, #16 in FY2023 and #29 in FY2024; down 6 since FY2024.
36
QED Systems LLC
$13,408,118
Rank history: not on the FY2021–FY2022 lists, #60 in FY2023 and #57 in FY2024; up 21 since FY2024.
37 $13,175,078
Rank history: not on the FY2021 list, #11 in FY2022, #11 in FY2023 and #3 in FY2024; down 34 since FY2024.
38 $12,554,390
Rank history: not on the FY2021–FY2024 lists; up 146 since FY2024.
39 $12,129,241
Rank history: #95 in FY2021, #22 in FY2022, not on the FY2023 list and #47 in FY2024; up 8 since FY2024.
40 $11,796,205
Rank history: not on the FY2021–FY2023 lists and #83 in FY2024; up 43 since FY2024.
41 $11,409,127
Rank history: #29 in FY2021, #25 in FY2022, #41 in FY2023 and #45 in FY2024; up 4 since FY2024.
42 $11,391,150
Rank history: #94 in FY2021, not on the FY2022–FY2023 lists and #64 in FY2024; up 22 since FY2024.
43 $11,321,608
Rank history: #41 in FY2021, #40 in FY2022, #42 in FY2023 and #56 in FY2024; up 13 since FY2024.
44 $10,743,346
Rank history: #58 in FY2021, #24 in FY2022, #32 in FY2023 and #41 in FY2024; down 3 since FY2024.
45 $10,449,338
Rank history: #74 in FY2021, #33 in FY2022, #51 in FY2023 and #37 in FY2024; down 8 since FY2024.
46 $10,300,934
Rank history: not on the FY2021–FY2024 lists; up 66 since FY2024.
47 $10,180,759
Rank history: not on the FY2021–FY2024 lists; up 77 since FY2024.
48 $9,698,833
Rank history: #33 in FY2021, #90 in FY2022, #65 in FY2023 and #84 in FY2024; up 36 since FY2024.
49 $9,590,184
Rank history: not on the FY2021 list, #31 in FY2022, #50 in FY2023 and #52 in FY2024; up 3 since FY2024.
50 $9,435,323
Rank history: not on the FY2021–FY2023 lists and #80 in FY2024; up 30 since FY2024.
51 $9,254,410
Rank history: not on the FY2021–FY2024 lists; new.
52
Analytical Mechanics Associates Inc.
$8,480,544
Rank history: not on the FY2021–FY2023 lists and #58 in FY2024; up 6 since FY2024.
53 $8,026,701
Rank history: #79 in FY2021, #67 in FY2022, not on the FY2023 list and #62 in FY2024; up 9 since FY2024.
54 $8,017,270
Rank history: not on the FY2021 list, #95 in FY2022, not on the FY2023 list and #82 in FY2024; up 28 since FY2024.
55 $7,972,974
Rank history: not on the FY2021–FY2023 lists and #72 in FY2024; up 17 since FY2024.
56
Purvis Systems Incorporated
$7,680,432
Rank history: not on the FY2021–FY2023 lists and #90 in FY2024; up 34 since FY2024.
57 $7,671,632
Rank history: #40 in FY2021 and not on the FY2022–FY2024 lists; up 72 since FY2024.
58 $7,669,135
Rank history: not on the FY2021–FY2024 lists; up 151 since FY2024.
59 $7,482,572
Rank history: not on the FY2021–FY2024 lists; new.
60 $7,248,612
Rank history: not on the FY2021–FY2024 lists; up 93 since FY2024.
61 $7,080,403
Rank history: not on the FY2021–FY2024 lists; up 42 since FY2024.
62 $6,875,576
Rank history: not on the FY2021–FY2023 lists and #63 in FY2024; up 1 since FY2024.
63 $6,867,236
Rank history: #73 in FY2021, #70 in FY2022, #69 in FY2023 and #71 in FY2024; up 8 since FY2024.
64 $6,698,136
Rank history: not on the FY2021–FY2023 lists and #65 in FY2024; up 1 since FY2024.
65 $6,631,334
Rank history: not on the FY2021–FY2023 lists and #53 in FY2024; down 12 since FY2024.
66 $6,352,161
Rank history: not on the FY2021–FY2022 lists, #62 in FY2023 and #66 in FY2024; unchanged since FY2024.
67 $5,995,977
Rank history: not on the FY2021–FY2024 lists; up 165 since FY2024.
68 $5,921,497
Rank history: not on the FY2021 list, #57 in FY2022, not on the FY2023 list and #92 in FY2024; up 24 since FY2024.
69 $5,702,923
Rank history: not on the FY2021 list, #75 in FY2022, #28 in FY2023 and #16 in FY2024; down 53 since FY2024.
70 $5,662,099
Rank history: not on the FY2021–FY2024 lists; up 57 since FY2024.
71 $5,548,905
Rank history: not on the FY2021–FY2024 lists; up 203 since FY2024.
72 $5,460,041
Rank history: not on the FY2021–FY2023 lists and #73 in FY2024; up 1 since FY2024.
73 $5,230,197
Rank history: not on the FY2021 list, #97 in FY2022, #91 in FY2023 and #81 in FY2024; up 8 since FY2024.
74 $5,187,701
Rank history: not on the FY2021–FY2024 lists; new.
75 $5,016,331
Rank history: not on the FY2021–FY2024 lists; up 201 since FY2024.
76 $5,008,429
Rank history: not on the FY2021–FY2024 lists; new.
77 $4,833,555
Rank history: #88 in FY2021, not on the FY2022 list, #96 in FY2023 and #97 in FY2024; up 20 since FY2024.
78 $4,788,875
Rank history: not on the FY2021–FY2024 lists; up 301 since FY2024.
79 $4,773,761
Rank history: not on the FY2021–FY2024 lists; new.
80 $4,677,462
Rank history: not on the FY2021–FY2024 lists; up 254 since FY2024.
81 $4,600,000
Rank history: not on the FY2021–FY2023 lists and #21 in FY2024; down 60 since FY2024.
82 $4,508,067
Rank history: not on the FY2021–FY2023 lists and #75 in FY2024; down 7 since FY2024.
83 $4,484,431
Rank history: #92 in FY2021 and not on the FY2022–FY2024 lists; up 95 since FY2024.
84 $4,467,762
Rank history: not on the FY2021–FY2024 lists; up 46 since FY2024.
85 $4,433,143
Rank history: #85 in FY2021, #72 in FY2022, #92 in FY2023 and not on the FY2024 list; up 36 since FY2024.
86 $4,383,983
Rank history: not on the FY2021–FY2024 lists; up 19 since FY2024.
87 $4,297,352
Rank history: #27 in FY2021, not on the FY2022 list, #61 in FY2023 and not on the FY2024 list; returned.
88 $4,271,084
Rank history: not on the FY2021 list, #62 in FY2022, #76 in FY2023 and #96 in FY2024; up 8 since FY2024.
89 $4,191,000
Rank history: not on the FY2021–FY2024 lists; up 161 since FY2024.
90 $4,188,434
Rank history: not on the FY2021–FY2022 lists, #77 in FY2023 and not on the FY2024 list; up 41 since FY2024.
91 $4,123,078
Rank history: not on the FY2021–FY2024 lists; up 44 since FY2024.
92 $4,103,554
Rank history: not on the FY2021–FY2022 lists, #95 in FY2023 and not on the FY2024 list; up 30 since FY2024.
93 $4,098,591
Rank history: not on the FY2021–FY2024 lists; up 261 since FY2024.
94 $4,097,882
Rank history: #91 in FY2021, not on the FY2022–FY2023 lists and #98 in FY2024; up 4 since FY2024.
95 $3,781,078
Rank history: not on the FY2021–FY2024 lists; up 109 since FY2024.
96 $3,760,758
Rank history: not on the FY2021–FY2024 lists; up 60 since FY2024.
97 $3,756,300
Rank history: not on the FY2021–FY2024 lists; up 134 since FY2024.
98 $3,728,128
Rank history: not on the FY2021 list, #98 in FY2022, #58 in FY2023 and not on the FY2024 list; up 291 since FY2024.
99 $3,535,238
Rank history: #93 in FY2021, #74 in FY2022, #88 in FY2023 and not on the FY2024 list; up 2 since FY2024.
100 $3,494,742
Rank history: not on the FY2021–FY2023 lists and #93 in FY2024; down 7 since FY2024.
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100 of 859 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 $2.17 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 PSC AJ11 contractors in FY2025?

1. Georgia TECH Research Corp ($278M), 2. University System of Maryland ($104M), 3. The Regents of the University of Colorado ($61.7M), 4. L3Harris Technologies, Inc. ($52.3M), 5. Southwest Research Institute ($49.4M), 6. PD Systems, LLC ($40.9M), 7. Johns Hopkins University ($40.5M), 8. The Mitre Corporation ($37.8M), 9. University of Arizona ($35.9M), 10. Booz Allen Hamilton Holding Corporation ($31.5M).

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