Top 100 Contractors in PSC AJ: General Science and Technology R&D Services, FY2023

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 37% of FY2023 PSC AJ contract dollars

Ranking facts

Contract obligations
$5,216,544,587 Net of deobligations, by contracts coded PSC AJ or a code under it
Contractors
1,641 Parent companies with an obligation
Largest contractor
National Security Technology Accelerator Inc. $430 million, 8.1% 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 $429,641,231
Rank history: #3 in FY2021, #3 in FY2022, #1 in FY2024 and #11 in FY2025; up 2 since FY2022.
2 $364,671,229
Rank history: #1 in FY2021, #1 in FY2022, #27 in FY2024 and #50 in FY2025; down 1 since FY2022.
3 $341,016,170
Rank history: #23 in FY2021, #2 in FY2022, #5 in FY2024 and #10 in FY2025; down 1 since FY2022.
4 $230,366,371
Rank history: #5 in FY2021, #5 in FY2022, #4 in FY2024 and #4 in FY2025; up 1 since FY2022.
5 $131,981,157
Rank history: #16 in FY2021, #8 in FY2022, #14 in FY2024 and #8 in FY2025; up 3 since FY2022.
6 $116,760,043
Rank history: #4 in FY2021, #4 in FY2022, #7 in FY2024 and #6 in FY2025; down 2 since FY2022.
7 $107,613,858
Rank history: #6 in FY2021, #6 in FY2022, #9 in FY2024 and #5 in FY2025; down 1 since FY2022.
8 $101,388,984
Rank history: #10 in FY2021, #10 in FY2022, #15 in FY2024 and #24 in FY2025; up 2 since FY2022.
9 $96,881,191
Rank history: #38 in FY2021, #9 in FY2022, #6 in FY2024 and #7 in FY2025; unchanged since FY2022.
10 $73,754,059
Rank history: #92 in FY2021, #28 in FY2022, #28 in FY2024 and #22 in FY2025; up 18 since FY2022.
11 $71,325,901
Rank history: #9 in FY2021, #7 in FY2022, #80 in FY2024 and not on the FY2025 list; down 4 since FY2022.
12 $66,651,056
Rank history: not on the FY2021 list, #17 in FY2022, #13 in FY2024 and #37 in FY2025; up 5 since FY2022.
13 $52,658,072
Rank history: #13 in FY2021, #11 in FY2022, #12 in FY2024 and #13 in FY2025; down 2 since FY2022.
14 $49,957,724
Rank history: #7 in FY2021, #14 in FY2022, #53 in FY2024 and not on the FY2025 list; unchanged since FY2022.
15 $44,714,000
Rank history: #11 in FY2021, #16 in FY2022, #21 in FY2024 and #20 in FY2025; up 1 since FY2022.
16 $43,723,662
Rank history: #21 in FY2021, #18 in FY2022, #19 in FY2024 and #14 in FY2025; up 2 since FY2022.
17 $42,034,256
Rank history: #12 in FY2021, #15 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
18 $40,368,884
Rank history: not on the FY2021–FY2022 lists, #36 in FY2024 and #23 in FY2025; new.
19 $40,310,741
Rank history: #18 in FY2021, #20 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
20 $40,144,346
Rank history: #64 in FY2021, #34 in FY2022, #66 in FY2024 and not on the FY2025 list; up 14 since FY2022.
21 $38,483,687
Rank history: #26 in FY2021, #26 in FY2022, #30 in FY2024 and #31 in FY2025; up 5 since FY2022.
22 $34,156,801
Rank history: #14 in FY2021, #12 in FY2022, #20 in FY2024 and #55 in FY2025; down 10 since FY2022.
23 $33,256,555
Rank history: #48 in FY2021, #43 in FY2022, #87 in FY2024 and not on the FY2025 list; up 20 since FY2022.
24 $31,328,007
Rank history: #22 in FY2021, #21 in FY2022, #23 in FY2024 and #36 in FY2025; down 3 since FY2022.
25 $30,917,488
Rank history: #36 in FY2021, #23 in FY2022, #42 in FY2024 and not on the FY2025 list; down 2 since FY2022.
26 $28,897,736
Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
27 $26,015,064
Rank history: not on the FY2021 list, #19 in FY2022 and not on the FY2024–FY2025 lists; down 8 since FY2022.
28 $25,792,135
Rank history: #41 in FY2021, #45 in FY2022, #39 in FY2024 and #25 in FY2025; up 17 since FY2022.
29 $25,453,332
Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
30 $23,943,535
Rank history: #70 in FY2021, #66 in FY2022 and not on the FY2024–FY2025 lists; up 36 since FY2022.
31 $23,549,263
Rank history: #15 in FY2021, #46 in FY2022, #40 in FY2024 and #85 in FY2025; up 15 since FY2022.
32 $23,189,781
Rank history: #66 in FY2021, #49 in FY2022 and not on the FY2024–FY2025 lists; up 17 since FY2022.
33 $23,116,157
Rank history: #29 in FY2021, #31 in FY2022, #34 in FY2024 and not on the FY2025 list; down 2 since FY2022.
34 $23,105,193
Rank history: not on the FY2021 list, #41 in FY2022, #10 in FY2024 and #86 in FY2025; up 7 since FY2022.
35 $22,304,397
Rank history: #17 in FY2021, #40 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
36 $21,610,881
Rank history: #71 in FY2021, #50 in FY2022, #62 in FY2024 and not on the FY2025 list; up 14 since FY2022.
37 $21,341,332
Rank history: #35 in FY2021, #33 in FY2022, #38 in FY2024 and #43 in FY2025; down 4 since FY2022.
38 $20,329,672
Rank history: #30 in FY2021, #29 in FY2022, #48 in FY2024 and #57 in FY2025; down 9 since FY2022.
39
Universities Space Research Association
$19,543,885
Rank history: not on the FY2021–FY2022 lists, #29 in FY2024 and #78 in FY2025; new.
40 $19,143,295
Rank history: #53 in FY2021, not on the FY2022 list, not on the FY2024 list and #96 in FY2025; up 125 since FY2022.
41 $19,042,986
Rank history: #62 in FY2021, #62 in FY2022 and not on the FY2024–FY2025 lists; up 21 since FY2022.
42 $18,971,478
Rank history: #24 in FY2021, #25 in FY2022, #69 in FY2024 and #87 in FY2025; down 17 since FY2022.
43 $18,459,740
Rank history: #32 in FY2021, #35 in FY2022, #64 in FY2024 and #83 in FY2025; down 8 since FY2022.
44 $18,327,270
Rank history: #39 in FY2021, #32 in FY2022, #33 in FY2024 and #74 in FY2025; down 12 since FY2022.
45 $18,180,158
Rank history: #43 in FY2021, #44 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
46 $17,907,924
Rank history: #57 in FY2021, #65 in FY2022 and not on the FY2024–FY2025 lists; up 19 since FY2022.
47 $16,954,277
Rank history: #65 in FY2021, #42 in FY2022, #49 in FY2024 and #41 in FY2025; down 5 since FY2022.
48 $16,705,274
Rank history: not on the FY2021 list, #58 in FY2022, #22 in FY2024 and #18 in FY2025; up 10 since FY2022.
49 $15,785,313
Rank history: not on the FY2021 list, #100 in FY2022, #45 in FY2024 and #95 in FY2025; up 51 since FY2022.
50 $15,567,512
Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #71 in FY2025; new.
51 $15,474,347
Rank history: #28 in FY2021, #47 in FY2022, #61 in FY2024 and #28 in FY2025; down 4 since FY2022.
52 $15,443,741
Rank history: not on the FY2021 list, #56 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
53 $15,399,007
Rank history: #67 in FY2021, #71 in FY2022 and not on the FY2024–FY2025 lists; up 18 since FY2022.
54 $15,160,429
Rank history: #54 in FY2021, #38 in FY2022, #51 in FY2024 and #54 in FY2025; down 16 since FY2022.
55 $14,971,215
Rank history: #74 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 49 since FY2022.
56 $14,774,183
Rank history: #89 in FY2021, #51 in FY2022 and not on the FY2024–FY2025 lists; down 5 since FY2022.
57 $14,689,418
Rank history: not on the FY2021 list, #55 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
58 $14,561,704
Rank history: not on the FY2021–FY2022 lists, #60 in FY2024 and #89 in FY2025; up 86 since FY2022.
59 $14,186,923
Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #79 in FY2025; up 136 since FY2022.
60 $13,286,901
Rank history: #27 in FY2021, #37 in FY2022, #97 in FY2024 and #88 in FY2025; down 23 since FY2022.
61 $13,205,470
Rank history: #68 in FY2021, #69 in FY2022, #78 in FY2024 and not on the FY2025 list; up 8 since FY2022.
62 $12,880,482
Rank history: not on the FY2021–FY2022 lists, #65 in FY2024 and #80 in FY2025; up 92 since FY2022.
63 $12,799,936
Rank history: #42 in FY2021, #54 in FY2022, #16 in FY2024 and #62 in FY2025; down 9 since FY2022.
64 $12,690,076
Rank history: not on the FY2021–FY2022 lists, #83 in FY2024 and not on the FY2025 list; up 46 since FY2022.
65 $12,304,375
Rank history: #47 in FY2021, #53 in FY2022, #43 in FY2024 and not on the FY2025 list; down 12 since FY2022.
66
Rebellion Defense Inc
$12,000,000
Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
67 $11,967,841
Rank history: #85 in FY2021, #75 in FY2022, #75 in FY2024 and #67 in FY2025; up 8 since FY2022.
68 $11,778,070
Rank history: #87 in FY2021, #81 in FY2022, #84 in FY2024 and not on the FY2025 list; up 13 since FY2022.
69 $11,722,353
Rank history: not on the FY2021 list, #63 in FY2022, #89 in FY2024 and not on the FY2025 list; down 6 since FY2022.
70 $11,585,385
Rank history: not on the FY2021–FY2022 lists, #81 in FY2024 and #69 in FY2025; up 39 since FY2022.
71 $11,519,573
Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
72 $11,386,281
Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
73 $11,323,884
Rank history: #56 in FY2021, #70 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
74 $11,297,917
Rank history: not on the FY2021–FY2022 lists, #91 in FY2024 and not on the FY2025 list; up 224 since FY2022.
75 $11,078,536
Rank history: not on the FY2021 list, #94 in FY2022 and not on the FY2024–FY2025 lists; up 19 since FY2022.
76
American Type Culture Collection
$11,060,493
Rank history: #19 in FY2021, #27 in FY2022 and not on the FY2024–FY2025 lists; down 49 since FY2022.
77 $10,573,686
Rank history: #44 in FY2021, #78 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
78 $10,526,558
Rank history: #84 in FY2021, #36 in FY2022 and not on the FY2024–FY2025 lists; down 42 since FY2022.
79
Integrated Solutions for Systems Inc.
$10,506,150
Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 40 since FY2022.
80 $10,453,247
Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #35 in FY2025; up 27 since FY2022.
81 $10,371,519
Rank history: #94 in FY2021, #64 in FY2022 and not on the FY2024–FY2025 lists; down 17 since FY2022.
82 $10,340,971
Rank history: #88 in FY2021, #57 in FY2022 and not on the FY2024–FY2025 lists; down 25 since FY2022.
83 $10,146,753
Rank history: not on the FY2021–FY2022 lists, #90 in FY2024 and #21 in FY2025; up 259 since FY2022.
84 $10,117,221
Rank history: not on the FY2021–FY2022 lists, #44 in FY2024 and #45 in FY2025; up 323 since FY2022.
85 $10,072,835
Rank history: #77 in FY2021, #39 in FY2022, #86 in FY2024 and not on the FY2025 list; down 46 since FY2022.
86 $9,226,804
Rank history: not on the FY2021–FY2022 lists, #95 in FY2024 and not on the FY2025 list; new.
87 $9,178,488
Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #100 in FY2025; up 19 since FY2022.
88
Nanotech Security Corp
$9,152,119
Rank history: #80 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 24 since FY2022.
89 $9,147,522
Rank history: #98 in FY2021, #68 in FY2022, #99 in FY2024 and #99 in FY2025; down 21 since FY2022.
90 $9,120,000
Rank history: not on the FY2021 list, #90 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
91 $8,811,948
Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 52 since FY2022.
92 $8,699,794
Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
93 $8,691,810
Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 21 since FY2022.
94 $8,305,895
Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 167 since FY2022.
95 $8,297,020
Rank history: #59 in FY2021, #92 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
96 $8,227,722
Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #63 in FY2025; up 19 since FY2022.
97 $7,899,224
Rank history: #34 in FY2021, #30 in FY2022, #57 in FY2024 and not on the FY2025 list; down 67 since FY2022.
98
Advanced Core Concepts LLC 2 awardees, including Arctos Technology Solutions, LLC
$7,726,284
Rank history: #79 in FY2021, #73 in FY2022 and not on the FY2024–FY2025 lists; down 25 since FY2022.
99 $7,533,317
Rank history: #91 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 81 since FY2022.
100 $7,500,000
Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
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100 of 1,641 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC AJ

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 $5.33 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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 AJ contractors in FY2023?

1. National Security Technology Accelerator Inc. ($430M), 2. Georgia TECH Research Corp ($365M), 3. Battelle Memorial Institute ($341M), 4. The Mitre Corporation ($230M), 5. Leidos Holdings, Inc. ($132M), 6. Science Systems and Applications, Inc. ($117M), 7. Assurance Technology Corp ($108M), 8. Linquest Corporation ($101M), 9. American Systems Corporation ($96.9M), 10. Parsons Corporation ($73.8M).

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