Top 100 Contractors in NAICS 488: Support Activities for Transportation, FY2025

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

The top 10 won 59% of FY2025 NAICS 488 contract dollars

Ranking facts

Contract obligations
$9,708,667,285 Net of deobligations, by contracts coded NAICS 488 or a code under it
Contractors
1,326 Parent companies with an obligation
Largest contractor
Amentum Holdings, Inc. $1.65 billion, 16.0% 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 $1,652,643,875
Rank history: not on the FY2021–FY2023 lists and #17 in FY2024; up 16 since FY2024.
2 $1,052,411,488
Rank history: #18 in FY2021, not on the FY2022–FY2023 lists and #2 in FY2024; unchanged since FY2024.
3 $861,180,347
Rank history: #2 in FY2021, #3 in FY2022, #3 in FY2023 and #3 in FY2024; unchanged since FY2024.
4 $543,957,546
Rank history: not on the FY2021–FY2023 lists and #4 in FY2024; unchanged since FY2024.
5 $421,880,309
Rank history: not on the FY2021–FY2023 lists and #11 in FY2024; up 6 since FY2024.
6 $366,294,055
Rank history: #9 in FY2021, #5 in FY2022, #7 in FY2023 and #8 in FY2024; up 2 since FY2024.
7
GDC Middle East Company
$343,391,129
Rank history: not on the FY2021–FY2023 lists and #5 in FY2024; down 2 since FY2024.
8 $300,684,532
Rank history: not on the FY2021–FY2023 lists and #15 in FY2024; up 7 since FY2024.
9 $262,247,378
Rank history: not on the FY2021–FY2022 lists, #6 in FY2023 and #6 in FY2024; down 3 since FY2024.
10 $230,984,902
Rank history: not on the FY2021–FY2023 lists and #18 in FY2024; up 8 since FY2024.
11 $230,310,315
Rank history: #7 in FY2021, #4 in FY2022, #4 in FY2023 and #13 in FY2024; up 2 since FY2024.
12 $229,335,962
Rank history: #13 in FY2021, #12 in FY2022, #12 in FY2023 and #9 in FY2024; down 3 since FY2024.
13 $150,765,508
Rank history: not on the FY2021–FY2022 lists, #11 in FY2023 and #7 in FY2024; down 6 since FY2024.
14 $145,246,781
Rank history: #15 in FY2021, #13 in FY2022, #13 in FY2023 and #16 in FY2024; up 2 since FY2024.
15 $119,076,760
Rank history: not on the FY2021–FY2024 lists; up 89 since FY2024.
16 $117,544,738
Rank history: #39 in FY2021, #16 in FY2022, #18 in FY2023 and #19 in FY2024; up 3 since FY2024.
17 $85,595,230
Rank history: #21 in FY2021, #19 in FY2022, #22 in FY2023 and #46 in FY2024; up 29 since FY2024.
18 $85,414,425
Rank history: #23 in FY2021, #20 in FY2022, #20 in FY2023 and #21 in FY2024; up 3 since FY2024.
19 $81,742,189
Rank history: not on the FY2021–FY2024 lists; up 112 since FY2024.
20 $81,033,408
Rank history: #32 in FY2021, #57 in FY2022, #39 in FY2023 and #22 in FY2024; up 2 since FY2024.
21
Midwest Air Traffic Control Service Inc
$75,934,005
Rank history: #26 in FY2021, #22 in FY2022, #21 in FY2023 and #25 in FY2024; up 4 since FY2024.
22 $74,659,932
Rank history: #6 in FY2021, #42 in FY2022, #34 in FY2023 and #28 in FY2024; up 6 since FY2024.
23 $74,566,203
Rank history: not on the FY2021–FY2023 lists and #36 in FY2024; up 13 since FY2024.
24 $67,532,725
Rank history: not on the FY2021 list, #93 in FY2022, #29 in FY2023 and #43 in FY2024; up 19 since FY2024.
25 $67,252,352
Rank history: #30 in FY2021, #24 in FY2022, #26 in FY2023 and #44 in FY2024; up 19 since FY2024.
26 $67,077,263
Rank history: not on the FY2021–FY2022 lists, #30 in FY2023 and #26 in FY2024; unchanged since FY2024.
27 $65,851,615
Rank history: not on the FY2021–FY2023 lists and #33 in FY2024; up 6 since FY2024.
28 $63,833,811
Rank history: not on the FY2021–FY2024 lists; new.
29 $60,963,075
Rank history: #37 in FY2021, #36 in FY2022, #27 in FY2023 and #34 in FY2024; up 5 since FY2024.
30 $60,253,682
Rank history: #16 in FY2021, #17 in FY2022, #17 in FY2023 and #30 in FY2024; unchanged since FY2024.
31 $47,260,064
Rank history: not on the FY2021–FY2022 lists, #42 in FY2023 and #38 in FY2024; up 7 since FY2024.
32 $46,600,732
Rank history: #36 in FY2021, #48 in FY2022, #85 in FY2023 and #52 in FY2024; up 20 since FY2024.
33 $45,629,626
Rank history: not on the FY2021 list, #29 in FY2022, #36 in FY2023 and #41 in FY2024; up 8 since FY2024.
34 $45,075,847
Rank history: not on the FY2021 list, #33 in FY2022, #19 in FY2023 and #37 in FY2024; up 3 since FY2024.
35 $38,349,016
Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and #65 in FY2024; up 30 since FY2024.
36 $37,165,682
Rank history: not on the FY2021 list, #49 in FY2022, #52 in FY2023 and #57 in FY2024; up 21 since FY2024.
37 $35,651,783
Rank history: not on the FY2021–FY2023 lists and #58 in FY2024; up 21 since FY2024.
38 $34,034,987
Rank history: #46 in FY2021, #37 in FY2022, #45 in FY2023 and #51 in FY2024; up 13 since FY2024.
39 $33,573,025
Rank history: not on the FY2021–FY2022 lists, #62 in FY2023 and #32 in FY2024; down 7 since FY2024.
40
National Technologies Associates Inc.
$31,379,429
Rank history: not on the FY2021–FY2023 lists and #54 in FY2024; up 14 since FY2024.
41 $29,065,297
Rank history: #42 in FY2021, #31 in FY2022, #35 in FY2023 and #31 in FY2024; down 10 since FY2024.
42 $28,076,614
Rank history: not on the FY2021–FY2024 lists; new.
43
Marshall of Cambridge Aerospace Limited
$26,836,276
Rank history: #77 in FY2021, #38 in FY2022, #65 in FY2023 and #45 in FY2024; up 2 since FY2024.
44 $25,953,324
Rank history: #57 in FY2021, #30 in FY2022, #41 in FY2023 and #48 in FY2024; up 4 since FY2024.
45 $24,483,559
Rank history: not on the FY2021–FY2023 lists and #61 in FY2024; up 16 since FY2024.
46 $24,442,022
Rank history: not on the FY2021–FY2022 lists, #82 in FY2023 and not on the FY2024 list; up 59 since FY2024.
47 $24,034,503
Rank history: not on the FY2021 list, #43 in FY2022, #37 in FY2023 and #47 in FY2024; unchanged since FY2024.
48 $23,635,437
Rank history: #56 in FY2021, #34 in FY2022, #44 in FY2023 and #49 in FY2024; up 1 since FY2024.
49 $23,578,773
Rank history: not on the FY2021–FY2023 lists and #55 in FY2024; up 6 since FY2024.
50 $17,852,575
Rank history: not on the FY2021–FY2024 lists; up 338 since FY2024.
51
J. B. Hunt Transport Services Inc. Through J.b. Hunt Transport Inc.
$17,721,108
Rank history: not on the FY2021–FY2024 lists; up 88 since FY2024.
52 $17,314,795
Rank history: not on the FY2021 list, #35 in FY2022, #55 in FY2023 and #63 in FY2024; up 11 since FY2024.
53 $16,966,918
Rank history: #60 in FY2021, #27 in FY2022, #38 in FY2023 and #42 in FY2024; down 11 since FY2024.
54 $15,273,224
Rank history: not on the FY2021–FY2024 lists; new.
55 $15,265,728
Rank history: not on the FY2021–FY2024 lists; new.
56
Moran Transportation Company Through Moran Towing Corporation
$15,168,070
Rank history: #73 in FY2021, #54 in FY2022, #49 in FY2023 and #53 in FY2024; down 3 since FY2024.
57 $15,161,643
Rank history: not on the FY2021–FY2024 lists; up 98 since FY2024.
58 $14,722,666
Rank history: #98 in FY2021, #47 in FY2022, #64 in FY2023 and #83 in FY2024; up 25 since FY2024.
59
Akima Facilities Operations LLC
$14,284,066
Rank history: not on the FY2021–FY2023 lists and #71 in FY2024; up 12 since FY2024.
60 $13,446,999
Rank history: not on the FY2021–FY2022 lists, #86 in FY2023 and #99 in FY2024; up 39 since FY2024.
61
Smit Holding Singapore PTE. Ltd. Through Smit Singapore PTE Ltd
$13,352,158
Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and not on the FY2024 list; up 59 since FY2024.
62 $12,813,989
Rank history: #68 in FY2021, #82 in FY2022, #75 in FY2023 and #74 in FY2024; up 12 since FY2024.
63 $12,756,413
Rank history: not on the FY2021–FY2024 lists; new.
64 $11,773,984
Rank history: not on the FY2021–FY2024 lists; up 42 since FY2024.
65 $11,425,000
Rank history: not on the FY2021–FY2024 lists; new.
66 $11,076,645
Rank history: #63 in FY2021, #65 in FY2022, #63 in FY2023 and #84 in FY2024; up 18 since FY2024.
67 $11,021,027
Rank history: not on the FY2021–FY2024 lists; up 148 since FY2024.
68 $11,000,453
Rank history: not on the FY2021–FY2024 lists; up 46 since FY2024.
69
Pole Star Space Applications (USA) Inc.
$10,794,131
Rank history: not on the FY2021–FY2023 lists and #72 in FY2024; up 3 since FY2024.
70 $10,386,726
Rank history: not on the FY2021–FY2024 lists; up 47 since FY2024.
71 $10,353,047
Rank history: not on the FY2021–FY2022 lists, #69 in FY2023 and #80 in FY2024; up 9 since FY2024.
72 $10,000,854
Rank history: not on the FY2021–FY2023 lists and #64 in FY2024; down 8 since FY2024.
73 $9,864,448
Rank history: not on the FY2021–FY2024 lists; up 189 since FY2024.
74 $9,658,896
Rank history: not on the FY2021–FY2024 lists; up 321 since FY2024.
75 $9,414,869
Rank history: #96 in FY2021, #71 in FY2022, #76 in FY2023 and #90 in FY2024; up 15 since FY2024.
76 $9,191,993
Rank history: not on the FY2021–FY2022 lists, #99 in FY2023 and not on the FY2024 list; up 51 since FY2024.
77 $8,806,046
Rank history: #76 in FY2021, #59 in FY2022 and not on the FY2023–FY2024 lists; up 41 since FY2024.
78 $8,693,597
Rank history: not on the FY2021–FY2024 lists; up 24 since FY2024.
79 $8,647,049
Rank history: not on the FY2021 list, #68 in FY2022, #59 in FY2023 and #69 in FY2024; down 10 since FY2024.
80 $8,628,895
Rank history: not on the FY2021–FY2024 lists; new.
81 $8,525,266
Rank history: not on the FY2021–FY2024 lists; up 51 since FY2024.
82 $8,396,945
Rank history: #28 in FY2021, #21 in FY2022 and not on the FY2023–FY2024 lists; returned.
83 $8,175,000
Rank history: not on the FY2021–FY2024 lists; up 24 since FY2024.
84 $8,154,472
Rank history: not on the FY2021–FY2024 lists; new.
85 $8,133,926
Rank history: #67 in FY2021, #69 in FY2022, #66 in FY2023 and #79 in FY2024; down 6 since FY2024.
86 $8,047,375
Rank history: #88 in FY2021, #97 in FY2022, #81 in FY2023 and not on the FY2024 list; up 30 since FY2024.
87
Seaward Marine Services Inc.
$7,898,121
Rank history: not on the FY2021–FY2024 lists; up 281 since FY2024.
88 $7,804,287
Rank history: not on the FY2021–FY2023 lists and #91 in FY2024; up 3 since FY2024.
89 $7,783,575
Rank history: not on the FY2021–FY2024 lists; up 52 since FY2024.
90 $7,653,697
Rank history: #84 in FY2021, #72 in FY2022, #78 in FY2023 and #95 in FY2024; up 5 since FY2024.
91 $7,589,704
Rank history: not on the FY2021–FY2024 lists; up 42 since FY2024.
92 $7,200,859
Rank history: not on the FY2021–FY2024 lists; up 90 since FY2024.
93 $7,068,984
Rank history: not on the FY2021–FY2024 lists; up 78 since FY2024.
94 $7,064,389
Rank history: not on the FY2021–FY2024 lists; up 57 since FY2024.
95 $7,063,629
Rank history: not on the FY2021–FY2024 lists; up 110 since FY2024.
96
Airbus DS Military Aircraft Inc.
$6,882,047
Rank history: not on the FY2021–FY2024 lists; up 65 since FY2024.
97 $6,738,363
Rank history: not on the FY2021–FY2024 lists; new.
98 $6,737,501
Rank history: not on the FY2021 list, #94 in FY2022, #90 in FY2023 and not on the FY2024 list; up 13 since FY2024.
99 $6,648,081
Rank history: not on the FY2021–FY2024 lists; up 129 since FY2024.
100 $6,568,539
Rank history: not on the FY2021–FY2024 lists; new.
Show 75 more

100 of 1,326 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 488

Code Net obligations Largest contractor
4881 Support Activities for Air Transportation $8,094,276,647 Amentum Holdings, Inc.
4883 Support Activities for Water Transportation $802,572,366 S.C.A. - Shipping Consultants Associated Ltd.
4889 Other Support Activities for Transportation $423,035,597 International Auto Logistics, LLC
4885 Freight Transportation Arrangement $348,625,088 Crowley Government Services, Inc.
4884 Support Activities for Road Transportation $21,727,819 Professional Contract Services, Inc.
4882 Support Activities for Rail Transportation $18,429,767 Alltrack, Inc.

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 $10.3 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 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 NAICS 488 contractors in FY2025?

1. Amentum Holdings, Inc. ($1.65B), 2. V2X, Inc. ($1.05B), 3. M1 Support Services, L.P. ($861M), 4. RTX Corporation ($544M), 5. Jpats Logistics Services, LLC ($422M), 6. The Boeing Company ($366M), 7. GDC Middle East Company ($343M), 8. Airbus US Space & Defense Inc. ($301M), 9. Crowley Government Services, Inc. ($262M), 10. AAR Government Services, Inc. ($231M).

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