Top 100 Contractors in NAICS 541715: Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology), 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 NAICS 541715: Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology), FY2025.

The top 10 won 45% of NAICS 541715 contract dollars from August 2025 through July 2026

Ranking facts

Contract obligations
$51,287,770,631 Net of deobligations, by contracts coded NAICS 541715
Contractors
4,989 Parent companies with an obligation
Largest contractor
Lockheed Martin Corporation $6.7 billion, 12.7% 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 $6,703,056,625
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 $3,365,376,807
Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; unchanged since Aug 2024–Jul 2025.
3 $2,307,368,367
Rank history: #9 in FY2021, #12 in FY2022, #14 in FY2023, #16 in FY2024 and #20 in FY2025; up 18 since Aug 2024–Jul 2025.
4 $2,186,136,659
Rank history: not on the FY2021–FY2024 lists and #4 in FY2025; up 275 since Aug 2024–Jul 2025.
5 $2,107,154,416
Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2023, #3 in FY2024 and #3 in FY2025; up 79 since Aug 2024–Jul 2025.
6 $1,657,730,690
Rank history: #4 in FY2021, #4 in FY2022, #5 in FY2023, #5 in FY2024 and #8 in FY2025; up 2 since Aug 2024–Jul 2025.
7 $1,531,637,247
Rank history: #5 in FY2021, #5 in FY2022, #6 in FY2023, #8 in FY2024 and #11 in FY2025; up 3 since Aug 2024–Jul 2025.
8 $1,483,241,577
Rank history: #7 in FY2021, #6 in FY2022, #4 in FY2023, #4 in FY2024 and #6 in FY2025; down 2 since Aug 2024–Jul 2025.
9 $1,310,598,927
Rank history: #6 in FY2021, #7 in FY2022, #8 in FY2023, #7 in FY2024 and #7 in FY2025; down 2 since Aug 2024–Jul 2025.
10 $1,112,491,611
Rank history: #19 in FY2021, #20 in FY2022, #15 in FY2023, #10 in FY2024 and #10 in FY2025; up 1 since Aug 2024–Jul 2025.
11 $974,254,057
Rank history: #13 in FY2021, #10 in FY2022, #13 in FY2023, #9 in FY2024 and #9 in FY2025; down 2 since Aug 2024–Jul 2025.
12 $895,770,533
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
13 $878,278,677
Rank history: not on the FY2021–FY2024 lists and #5 in FY2025; down 8 since Aug 2024–Jul 2025.
14 $692,496,498
Rank history: #14 in FY2021, #13 in FY2022, #12 in FY2023, #30 in FY2024 and #23 in FY2025; new, not ranked in Aug 2024–Jul 2025.
15 $639,680,349
Rank history: #24 in FY2021, #15 in FY2022, #17 in FY2023, #17 in FY2024 and #14 in FY2025; down 2 since Aug 2024–Jul 2025.
16 $550,857,153
Rank history: #21 in FY2021, #21 in FY2022, #20 in FY2023, #22 in FY2024 and #27 in FY2025; up 9 since Aug 2024–Jul 2025.
17 $550,110,371
Rank history: not on the FY2021 list, #79 in FY2022, not on the FY2023 list, #13 in FY2024 and #13 in FY2025; down 5 since Aug 2024–Jul 2025.
18 $508,887,725
Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; up 12 since Aug 2024–Jul 2025.
19 $499,361,719
Rank history: not on the FY2021–FY2022 lists, #35 in FY2023, #37 in FY2024 and not on the FY2025 list; up 14 since Aug 2024–Jul 2025.
20 $497,177,601
Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; up 2 since Aug 2024–Jul 2025.
21 $472,898,192
Rank history: not on the FY2021 list, #17 in FY2022, not on the FY2023 list, #11 in FY2024 and #16 in FY2025; down 7 since Aug 2024–Jul 2025.
22 $452,281,355
Rank history: #39 in FY2021, #30 in FY2022, #22 in FY2023, #20 in FY2024 and #17 in FY2025; down 7 since Aug 2024–Jul 2025.
23 $450,186,420
Rank history: #17 in FY2021, #22 in FY2022, #26 in FY2023, #15 in FY2024 and #24 in FY2025; down 6 since Aug 2024–Jul 2025.
24 $428,987,781
Rank history: #22 in FY2021, #23 in FY2022, #24 in FY2023, #19 in FY2024 and #21 in FY2025; down 5 since Aug 2024–Jul 2025.
25 $399,536,169
Rank history: #10 in FY2021, #11 in FY2022, #11 in FY2023, #79 in FY2024 and #18 in FY2025; up 367 since Aug 2024–Jul 2025.
26 $388,615,783
Rank history: #35 in FY2021, #27 in FY2022, #28 in FY2023, #21 in FY2024 and #25 in FY2025; down 3 since Aug 2024–Jul 2025.
27 $381,803,741
Rank history: #18 in FY2021, #16 in FY2022, #23 in FY2023, #27 in FY2024 and #26 in FY2025; down 1 since Aug 2024–Jul 2025.
28 $293,526,843
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
29 $291,180,034
Rank history: not on the FY2021–FY2025 lists; up 248 since Aug 2024–Jul 2025.
30 $264,757,060
Rank history: #25 in FY2021, not on the FY2022–FY2023 lists, #25 in FY2024 and #28 in FY2025; down 6 since Aug 2024–Jul 2025.
31 $257,252,841
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
32 $247,949,212
Rank history: #41 in FY2021, #48 in FY2022, #45 in FY2023, #39 in FY2024 and #31 in FY2025; down 1 since Aug 2024–Jul 2025.
33 $224,637,707
Rank history: #8 in FY2021, #8 in FY2022, #9 in FY2023, #12 in FY2024 and #30 in FY2025; down 13 since Aug 2024–Jul 2025.
34 $221,753,811
Rank history: #42 in FY2021, #34 in FY2022, #27 in FY2023, #31 in FY2024 and #32 in FY2025; unchanged since Aug 2024–Jul 2025.
35 $212,753,556
Rank history: not on the FY2021–FY2023 lists, #71 in FY2024 and #44 in FY2025; up 15 since Aug 2024–Jul 2025.
36 $195,732,248
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
37 $189,623,835
Rank history: #51 in FY2021, #89 in FY2022, #74 in FY2023, #83 in FY2024 and #47 in FY2025; up 10 since Aug 2024–Jul 2025.
38 $189,386,633
Rank history: not on the FY2021–FY2023 lists, #52 in FY2024 and #34 in FY2025; down 9 since Aug 2024–Jul 2025.
39 $180,956,866
Rank history: #30 in FY2021, #18 in FY2022, #16 in FY2023, #24 in FY2024 and #33 in FY2025; down 7 since Aug 2024–Jul 2025.
40 $168,138,505
Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and #38 in FY2025; down 5 since Aug 2024–Jul 2025.
41 $150,588,466
Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; up 348 since Aug 2024–Jul 2025.
42 $150,302,718
Rank history: not on the FY2021–FY2024 lists and #35 in FY2025; up 147 since Aug 2024–Jul 2025.
43 $144,778,983
Rank history: #56 in FY2021, #84 in FY2022, #57 in FY2023, #56 in FY2024 and #81 in FY2025; up 33 since Aug 2024–Jul 2025.
44 $139,518,932
Rank history: not on the FY2021–FY2023 lists, #78 in FY2024 and not on the FY2025 list; up 22 since Aug 2024–Jul 2025.
45 $133,658,759
Rank history: not on the FY2021–FY2023 lists, #65 in FY2024 and #61 in FY2025; up 1 since Aug 2024–Jul 2025.
46 $132,442,775
Rank history: #74 in FY2021, #45 in FY2022, #31 in FY2023, #36 in FY2024 and #39 in FY2025; down 10 since Aug 2024–Jul 2025.
47 $124,671,857
Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; up 36 since Aug 2024–Jul 2025.
48 $122,926,536
Rank history: #59 in FY2021, #40 in FY2022, #33 in FY2023, not on the FY2024 list and #40 in FY2025; new, not ranked in Aug 2024–Jul 2025.
49 $120,167,231
Rank history: not on the FY2021–FY2023 lists, #75 in FY2024 and #42 in FY2025; down 8 since Aug 2024–Jul 2025.
50 $111,892,172
Rank history: #92 in FY2021, #92 in FY2022, #51 in FY2023, #33 in FY2024 and #53 in FY2025; down 7 since Aug 2024–Jul 2025.
51
American Electronic Warfare Associates Incorporated
$111,001,586
Rank history: not on the FY2021–FY2023 lists, #54 in FY2024 and #50 in FY2025; up 4 since Aug 2024–Jul 2025.
52 $107,337,204
Rank history: #37 in FY2021, #39 in FY2022, #49 in FY2023, #41 in FY2024 and #78 in FY2025; up 8 since Aug 2024–Jul 2025.
53 $106,537,800
Rank history: #33 in FY2021, #41 in FY2022, #36 in FY2023, #46 in FY2024 and #64 in FY2025; up 17 since Aug 2024–Jul 2025.
54 $105,793,419
Rank history: #43 in FY2021, #43 in FY2022, #42 in FY2023, #42 in FY2024 and #51 in FY2025; down 6 since Aug 2024–Jul 2025.
55 $104,972,290
Rank history: #82 in FY2021, not on the FY2022–FY2023 lists, #51 in FY2024 and #56 in FY2025; up 4 since Aug 2024–Jul 2025.
56 $102,963,593
Rank history: #87 in FY2021, not on the FY2022–FY2024 lists and #72 in FY2025; up 121 since Aug 2024–Jul 2025.
57 $102,646,797
Rank history: not on the FY2021–FY2022 lists, #95 in FY2023, not on the FY2024 list and #48 in FY2025; up 7 since Aug 2024–Jul 2025.
58 $100,239,250
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
59 $98,588,588
Rank history: not on the FY2021 list, #54 in FY2022, #58 in FY2023, #50 in FY2024 and #43 in FY2025; down 15 since Aug 2024–Jul 2025.
60 $97,806,485
Rank history: not on the FY2021–FY2023 lists, #70 in FY2024 and #95 in FY2025; up 2 since Aug 2024–Jul 2025.
61 $91,755,390
Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and #45 in FY2025; down 16 since Aug 2024–Jul 2025.
62 $91,233,998
Rank history: not on the FY2021 list, #46 in FY2022, #46 in FY2023, #35 in FY2024 and #46 in FY2025; down 13 since Aug 2024–Jul 2025.
63 $87,822,960
Rank history: #94 in FY2021, #62 in FY2022, #81 in FY2023, #60 in FY2024 and #68 in FY2025; up 17 since Aug 2024–Jul 2025.
64 $85,481,461
Rank history: not on the FY2021–FY2024 lists and #54 in FY2025; new, not ranked in Aug 2024–Jul 2025.
65 $85,479,168
Rank history: #57 in FY2021, #55 in FY2022, #53 in FY2023, #66 in FY2024 and #36 in FY2025; down 26 since Aug 2024–Jul 2025.
66 $84,359,134
Rank history: not on the FY2021–FY2023 lists, #76 in FY2024 and #65 in FY2025; up 28 since Aug 2024–Jul 2025.
67 $83,793,602
Rank history: not on the FY2021–FY2025 lists; up 82 since Aug 2024–Jul 2025.
68 $79,502,575
Rank history: #72 in FY2021, #75 in FY2022, #86 in FY2023, #96 in FY2024 and #70 in FY2025; up 5 since Aug 2024–Jul 2025.
69 $78,437,871
Rank history: #63 in FY2021, not on the FY2022 list, #85 in FY2023, #85 in FY2024 and #69 in FY2025; up 6 since Aug 2024–Jul 2025.
70 $76,881,777
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
71 $75,160,500
Rank history: not on the FY2021–FY2022 lists, #69 in FY2023 and not on the FY2024–FY2025 lists; up 67 since Aug 2024–Jul 2025.
72 $73,284,205
Rank history: #44 in FY2021, #56 in FY2022, #64 in FY2023, not on the FY2024 list and #73 in FY2025; up 68 since Aug 2024–Jul 2025.
73 $70,823,437
Rank history: not on the FY2021 list, #61 in FY2022, #71 in FY2023, #59 in FY2024 and #75 in FY2025; up 6 since Aug 2024–Jul 2025.
74 $70,679,973
Rank history: not on the FY2021–FY2022 lists, #77 in FY2023, #73 in FY2024 and #58 in FY2025; down 5 since Aug 2024–Jul 2025.
75 $69,966,166
Rank history: not on the FY2021 list, #91 in FY2022, #40 in FY2023, #47 in FY2024 and #55 in FY2025; down 19 since Aug 2024–Jul 2025.
76 $67,386,109
Rank history: #34 in FY2021, #33 in FY2022, #43 in FY2023, #48 in FY2024 and #60 in FY2025; down 24 since Aug 2024–Jul 2025.
77 $67,033,044
Rank history: not on the FY2021–FY2025 lists; up 47 since Aug 2024–Jul 2025.
78 $65,969,780
Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; up 420 since Aug 2024–Jul 2025.
79 $63,236,150
Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; up 13 since Aug 2024–Jul 2025.
80 $63,142,858
Rank history: #28 in FY2021, #42 in FY2022, #59 in FY2023, #62 in FY2024 and #85 in FY2025; down 15 since Aug 2024–Jul 2025.
81 $62,591,913
Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; down 9 since Aug 2024–Jul 2025.
82 $62,436,477
Rank history: not on the FY2021–FY2024 lists and #76 in FY2025; down 5 since Aug 2024–Jul 2025.
83 $62,019,486
Rank history: not on the FY2021–FY2023 lists, #64 in FY2024 and #90 in FY2025; down 15 since Aug 2024–Jul 2025.
84 $60,202,615
Rank history: not on the FY2021–FY2025 lists; up 192 since Aug 2024–Jul 2025.
85 $59,199,457
Rank history: not on the FY2021 list, #88 in FY2022, #93 in FY2023, #82 in FY2024 and #91 in FY2025; up 6 since Aug 2024–Jul 2025.
86 $58,786,845
Rank history: not on the FY2021–FY2023 lists, #86 in FY2024 and #77 in FY2025; up 13 since Aug 2024–Jul 2025.
87 $56,692,514
Rank history: not on the FY2021–FY2025 lists; up 58 since Aug 2024–Jul 2025.
88 $56,311,464
Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; up 18 since Aug 2024–Jul 2025.
89 $56,190,220
Rank history: not on the FY2021–FY2024 lists and #82 in FY2025; new, not ranked in Aug 2024–Jul 2025.
90
MI Technical Solutions Inc.
$54,888,353
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
91 $53,577,724
Rank history: #23 in FY2021, #25 in FY2022, #29 in FY2023, #32 in FY2024 and #49 in FY2025; down 49 since Aug 2024–Jul 2025.
92 $52,915,898
Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; up 18 since Aug 2024–Jul 2025.
93 $52,871,192
Rank history: not on the FY2021–FY2025 lists; up 44 since Aug 2024–Jul 2025.
94 $52,599,075
Rank history: not on the FY2021–FY2025 lists; up 41 since Aug 2024–Jul 2025.
95 $50,641,181
Rank history: not on the FY2021–FY2025 lists; up 334 since Aug 2024–Jul 2025.
96 $50,548,832
Rank history: not on the FY2021 list, #90 in FY2022 and not on the FY2023–FY2025 lists; up 24 since Aug 2024–Jul 2025.
97 $50,085,993
Rank history: not on the FY2021–FY2025 lists; up 18 since Aug 2024–Jul 2025.
98 $50,017,477
Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; new, not ranked in Aug 2024–Jul 2025.
99 $49,850,658
Rank history: not on the FY2021–FY2023 lists, #72 in FY2024 and not on the FY2025 list; down 2 since Aug 2024–Jul 2025.
100 $49,449,664
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
Show 75 more

100 of 4,989 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 $52.6 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 NAICS 541715 contractors in Aug 2025–Jul 2026?

1. Lockheed Martin Corporation ($6.7B), 2. Fluor Corporation ($3.37B), 3. RTX Corporation ($2.31B), 4. Johns Hopkins University ($2.19B), 5. California Institute of Technology ($2.11B), 6. Leidos Holdings, Inc. ($1.66B), 7. The Mitre Corporation ($1.53B), 8. Northrop Grumman Systems Corporation ($1.48B), 9. The Aerospace Corporation ($1.31B), 10. CACI International Inc. ($1.11B).

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