Top 100 Contractors in NAICS 488: Support Activities for Transportation, Jul 2025–Jun 2026

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 55% of NAICS 488 contract dollars from July 2025 through June 2026

Ranking facts

Contract obligations
$10,592,446,527 Net of deobligations, by contracts coded NAICS 488 or a code under it
Contractors
1,232 Parent companies with an obligation
Largest contractor
Amentum Holdings, Inc. $1.82 billion, 16.2% 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 $1,824,370,494
Rank history: not on the FY2021–FY2023 lists, #17 in FY2024 and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2 $1,271,499,880
Rank history: #18 in FY2021, not on the FY2022–FY2023 lists, #2 in FY2024 and #2 in FY2025; unchanged since Jul 2024–Jun 2025.
3 $772,146,266
Rank history: #2 in FY2021, #3 in FY2022, #3 in FY2023, #3 in FY2024 and #3 in FY2025; unchanged since Jul 2024–Jun 2025.
4 $564,099,466
Rank history: #4 in FY2021, #6 in FY2022, #5 in FY2023, #4 in FY2024 and #4 in FY2025; unchanged since Jul 2024–Jun 2025.
5 $353,316,498
Rank history: #9 in FY2021, #5 in FY2022, #7 in FY2023, #8 in FY2024 and #6 in FY2025; up 3 since Jul 2024–Jun 2025.
6 $336,129,928
Rank history: not on the FY2021–FY2023 lists, #36 in FY2024 and #23 in FY2025; up 15 since Jul 2024–Jun 2025.
7 $302,906,409
Rank history: not on the FY2021–FY2023 lists, #15 in FY2024 and #8 in FY2025; unchanged since Jul 2024–Jun 2025.
8
GDC Middle East Company
$285,706,753
Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #7 in FY2025; down 2 since Jul 2024–Jun 2025.
9 $260,765,042
Rank history: not on the FY2021–FY2022 lists, #6 in FY2023, #6 in FY2024 and #9 in FY2025; up 1 since Jul 2024–Jun 2025.
10 $247,489,395
Rank history: not on the FY2021–FY2023 lists, #18 in FY2024 and #10 in FY2025; up 111 since Jul 2024–Jun 2025.
11 $244,350,875
Rank history: #13 in FY2021, #12 in FY2022, #12 in FY2023, #9 in FY2024 and #12 in FY2025; up 2 since Jul 2024–Jun 2025.
12 $242,731,289
Rank history: not on the FY2021–FY2023 lists, #11 in FY2024 and #5 in FY2025; down 7 since Jul 2024–Jun 2025.
13 $221,555,979
Rank history: not on the FY2021–FY2022 lists, #11 in FY2023, #7 in FY2024 and #13 in FY2025; down 4 since Jul 2024–Jun 2025.
14 $219,309,871
Rank history: #7 in FY2021, #4 in FY2022, #4 in FY2023, #13 in FY2024 and #11 in FY2025; down 3 since Jul 2024–Jun 2025.
15 $149,469,409
Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; up 20 since Jul 2024–Jun 2025.
16 $134,825,424
Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; up 3 since Jul 2024–Jun 2025.
17 $130,492,301
Rank history: #21 in FY2021, #19 in FY2022, #22 in FY2023, #46 in FY2024 and #17 in FY2025; up 3 since Jul 2024–Jun 2025.
18 $124,378,937
Rank history: #39 in FY2021, #16 in FY2022, #18 in FY2023, #19 in FY2024 and #16 in FY2025; down 1 since Jul 2024–Jun 2025.
19 $114,194,747
Rank history: #32 in FY2021, #57 in FY2022, #39 in FY2023, #22 in FY2024 and #20 in FY2025; down 1 since Jul 2024–Jun 2025.
20 $112,537,327
Rank history: #15 in FY2021, #13 in FY2022, #13 in FY2023, #16 in FY2024 and #14 in FY2025; down 5 since Jul 2024–Jun 2025.
21 $109,112,119
Rank history: not on the FY2021–FY2022 lists, #68 in FY2023, #65 in FY2024 and #35 in FY2025; up 32 since Jul 2024–Jun 2025.
22 $106,257,232
Rank history: #23 in FY2021, #20 in FY2022, #20 in FY2023, #21 in FY2024 and #18 in FY2025; up 2 since Jul 2024–Jun 2025.
23 $105,196,115
Rank history: not on the FY2021–FY2023 lists, #33 in FY2024 and #27 in FY2025; down 1 since Jul 2024–Jun 2025.
24
Midwest Air Traffic Control Service Inc
$98,467,365
Rank history: #26 in FY2021, #22 in FY2022, #21 in FY2023, #25 in FY2024 and #21 in FY2025; up 2 since Jul 2024–Jun 2025.
25 $81,500,618
Rank history: #6 in FY2021, #42 in FY2022, #34 in FY2023, #28 in FY2024 and #22 in FY2025; up 5 since Jul 2024–Jun 2025.
26 $70,364,102
Rank history: not on the FY2021–FY2022 lists, #30 in FY2023, #26 in FY2024 and #26 in FY2025; down 3 since Jul 2024–Jun 2025.
27 $67,300,647
Rank history: not on the FY2021 list, #49 in FY2022, #52 in FY2023, #57 in FY2024 and #36 in FY2025; up 16 since Jul 2024–Jun 2025.
28 $62,474,276
Rank history: #36 in FY2021, #48 in FY2022, #85 in FY2023, #52 in FY2024 and #32 in FY2025; unchanged since Jul 2024–Jun 2025.
29 $60,001,418
Rank history: #30 in FY2021, #24 in FY2022, #26 in FY2023, #44 in FY2024 and #25 in FY2025; down 2 since Jul 2024–Jun 2025.
30 $58,776,715
Rank history: #37 in FY2021, #36 in FY2022, #27 in FY2023, #34 in FY2024 and #29 in FY2025; up 1 since Jul 2024–Jun 2025.
31
National Technologies Associates Inc.
$58,121,276
Rank history: not on the FY2021–FY2023 lists, #54 in FY2024 and #40 in FY2025; up 11 since Jul 2024–Jun 2025.
32 $54,385,808
Rank history: #16 in FY2021, #17 in FY2022, #17 in FY2023, #30 in FY2024 and #30 in FY2025; up 5 since Jul 2024–Jun 2025.
33 $49,673,454
Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; down 8 since Jul 2024–Jun 2025.
34 $45,509,307
Rank history: not on the FY2021 list, #93 in FY2022, #29 in FY2023, #43 in FY2024 and #24 in FY2025; down 1 since Jul 2024–Jun 2025.
35 $41,488,466
Rank history: #46 in FY2021, #37 in FY2022, #45 in FY2023, #51 in FY2024 and #38 in FY2025; up 3 since Jul 2024–Jun 2025.
36 $39,093,404
Rank history: not on the FY2021–FY2022 lists, #42 in FY2023, #38 in FY2024 and #31 in FY2025; down 7 since Jul 2024–Jun 2025.
37 $37,673,095
Rank history: not on the FY2021–FY2025 lists; up 127 since Jul 2024–Jun 2025.
38 $36,539,909
Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; up 10 since Jul 2024–Jun 2025.
39 $35,472,133
Rank history: not on the FY2021–FY2022 lists, #62 in FY2023, #32 in FY2024 and #39 in FY2025; up 1 since Jul 2024–Jun 2025.
40
Rolls-Royce Solutions America Inc. Through Rolls-Royce Corporation
$34,955,722
Rank history: not on the FY2021–FY2023 lists, #55 in FY2024 and #49 in FY2025; up 12 since Jul 2024–Jun 2025.
41
Marshall of Cambridge Aerospace Limited
$33,591,979
Rank history: #77 in FY2021, #38 in FY2022, #65 in FY2023, #45 in FY2024 and #43 in FY2025; down 2 since Jul 2024–Jun 2025.
42 $29,178,689
Rank history: not on the FY2021–FY2023 lists, #58 in FY2024 and #37 in FY2025; up 5 since Jul 2024–Jun 2025.
43 $26,700,967
Rank history: #42 in FY2021, #31 in FY2022, #35 in FY2023, #31 in FY2024 and #41 in FY2025; down 9 since Jul 2024–Jun 2025.
44 $25,906,011
Rank history: not on the FY2021–FY2024 lists and #55 in FY2025; up 45 since Jul 2024–Jun 2025.
45 $25,563,845
Rank history: not on the FY2021–FY2024 lists and #54 in FY2025; up 55 since Jul 2024–Jun 2025.
46 $25,248,699
Rank history: not on the FY2021–FY2023 lists, #61 in FY2024 and #45 in FY2025; up 3 since Jul 2024–Jun 2025.
47 $24,533,673
Rank history: #56 in FY2021, #34 in FY2022, #44 in FY2023, #49 in FY2024 and #48 in FY2025; up 3 since Jul 2024–Jun 2025.
48 $22,190,000
Rank history: not on the FY2021–FY2022 lists, #82 in FY2023, not on the FY2024 list and #46 in FY2025; up 10 since Jul 2024–Jun 2025.
49 $21,779,300
Rank history: not on the FY2021 list, #29 in FY2022, #36 in FY2023, #41 in FY2024 and #33 in FY2025; down 17 since Jul 2024–Jun 2025.
50
Air Transport Services Group Inc. Through Air Transport International Inc.
$21,502,745
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
51 $21,011,649
Rank history: not on the FY2021 list, #33 in FY2022, #19 in FY2023, #37 in FY2024 and #34 in FY2025; down 15 since Jul 2024–Jun 2025.
52 $20,227,976
Rank history: #98 in FY2021, #47 in FY2022, #64 in FY2023, #83 in FY2024 and #58 in FY2025; up 66 since Jul 2024–Jun 2025.
53 $19,723,212
Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; up 205 since Jul 2024–Jun 2025.
54 $19,483,087
Rank history: not on the FY2021 list, #78 in FY2022, #72 in FY2023, #77 in FY2024 and not on the FY2025 list; up 61 since Jul 2024–Jun 2025.
55 $18,947,656
Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; up 32 since Jul 2024–Jun 2025.
56 $18,943,546
Rank history: not on the FY2021–FY2022 lists, #86 in FY2023, #99 in FY2024 and #60 in FY2025; up 37 since Jul 2024–Jun 2025.
57 $18,656,313
Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; down 2 since Jul 2024–Jun 2025.
58 $16,923,937
Rank history: not on the FY2021 list, #43 in FY2022, #37 in FY2023, #47 in FY2024 and #47 in FY2025; down 12 since Jul 2024–Jun 2025.
59 $14,036,561
Rank history: not on the FY2021–FY2023 lists, #75 in FY2024 and not on the FY2025 list; up 45 since Jul 2024–Jun 2025.
60 $13,631,597
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
61 $13,515,353
Rank history: not on the FY2021–FY2025 lists; up 99 since Jul 2024–Jun 2025.
62 $13,227,944
Rank history: not on the FY2021–FY2025 lists; up 250 since Jul 2024–Jun 2025.
63 $13,204,156
Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; up 163 since Jul 2024–Jun 2025.
64 $13,182,458
Rank history: not on the FY2021–FY2025 lists; up 268 since Jul 2024–Jun 2025.
65 $12,921,368
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
66
Pole Star Space Applications (USA) Inc.
$11,898,741
Rank history: not on the FY2021–FY2023 lists, #72 in FY2024 and #69 in FY2025; down 7 since Jul 2024–Jun 2025.
67 $11,736,925
Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; up 8 since Jul 2024–Jun 2025.
68 $11,595,049
Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; up 360 since Jul 2024–Jun 2025.
69 $11,457,197
Rank history: #57 in FY2021, #30 in FY2022, #41 in FY2023, #48 in FY2024 and #44 in FY2025; down 24 since Jul 2024–Jun 2025.
70 $11,425,000
Rank history: not on the FY2021–FY2024 lists and #65 in FY2025; new, not ranked in Jul 2024–Jun 2025.
71 $11,416,326
Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; up 27 since Jul 2024–Jun 2025.
72 $10,995,396
Rank history: not on the FY2021 list, #81 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; up 105 since Jul 2024–Jun 2025.
73 $10,972,465
Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; down 4 since Jul 2024–Jun 2025.
74 $10,809,782
Rank history: not on the FY2021–FY2025 lists; up 100 since Jul 2024–Jun 2025.
75 $10,611,180
Rank history: not on the FY2021–FY2022 lists, #99 in FY2023, not on the FY2024 list and #76 in FY2025; up 27 since Jul 2024–Jun 2025.
76 $10,243,647
Rank history: not on the FY2021–FY2025 lists; up 64 since Jul 2024–Jun 2025.
77 $10,063,725
Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; down 13 since Jul 2024–Jun 2025.
78 $9,794,780
Rank history: not on the FY2021–FY2024 lists and #73 in FY2025; up 161 since Jul 2024–Jun 2025.
79 $9,522,576
Rank history: #96 in FY2021, #71 in FY2022, #76 in FY2023, #90 in FY2024 and #75 in FY2025; up 3 since Jul 2024–Jun 2025.
80 $9,412,775
Rank history: not on the FY2021–FY2025 lists; up 44 since Jul 2024–Jun 2025.
81 $9,108,612
Rank history: not on the FY2021–FY2025 lists; up 65 since Jul 2024–Jun 2025.
82 $8,806,119
Rank history: #68 in FY2021, #82 in FY2022, #75 in FY2023, #74 in FY2024 and #62 in FY2025; down 16 since Jul 2024–Jun 2025.
83 $8,787,669
Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; up 3 since Jul 2024–Jun 2025.
84 $8,768,866
Rank history: not on the FY2021–FY2023 lists, #68 in FY2024 and not on the FY2025 list; down 17 since Jul 2024–Jun 2025.
85 $8,663,407
Rank history: not on the FY2021 list, #94 in FY2022, #90 in FY2023, not on the FY2024 list and #98 in FY2025; up 24 since Jul 2024–Jun 2025.
86 $8,606,166
Rank history: not on the FY2021–FY2023 lists, #64 in FY2024 and #72 in FY2025; down 26 since Jul 2024–Jun 2025.
87 $8,579,591
Rank history: #76 in FY2021, #59 in FY2022, not on the FY2023–FY2024 lists and #77 in FY2025; up 12 since Jul 2024–Jun 2025.
88 $8,551,650
Rank history: #63 in FY2021, #65 in FY2022, #63 in FY2023, #84 in FY2024 and #66 in FY2025; down 7 since Jul 2024–Jun 2025.
89 $8,496,688
Rank history: not on the FY2021–FY2023 lists, #93 in FY2024 and not on the FY2025 list; up 18 since Jul 2024–Jun 2025.
90
Akima Facilities Operations LLC
$8,298,943
Rank history: not on the FY2021–FY2023 lists, #71 in FY2024 and #59 in FY2025; down 28 since Jul 2024–Jun 2025.
91
Veritas Capital Fund Management, L.L.C. Through Qinetiq Limited
$8,280,636
Rank history: not on the FY2021–FY2025 lists; up 113 since Jul 2024–Jun 2025.
92 $8,091,071
Rank history: not on the FY2021–FY2024 lists and #92 in FY2025; up 91 since Jul 2024–Jun 2025.
93 $8,086,697
Rank history: not on the FY2021–FY2024 lists and #94 in FY2025; up 102 since Jul 2024–Jun 2025.
94 $7,894,251
Rank history: #81 in FY2021, not on the FY2022–FY2023 lists, #87 in FY2024 and not on the FY2025 list; unchanged since Jul 2024–Jun 2025.
95 $7,865,619
Rank history: #88 in FY2021, #97 in FY2022, #81 in FY2023, not on the FY2024 list and #86 in FY2025; down 5 since Jul 2024–Jun 2025.
96 $7,813,992
Rank history: not on the FY2021–FY2025 lists; up 27 since Jul 2024–Jun 2025.
97
Algese S.R.L.
$7,755,835
Rank history: not on the FY2021–FY2024 lists and #89 in FY2025; down 13 since Jul 2024–Jun 2025.
98
Asia Pacific Aerospace PTY. Ltd.
$7,698,066
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
99 $7,651,104
Rank history: not on the FY2021–FY2025 lists; up 29 since Jul 2024–Jun 2025.
100 $7,636,313
Rank history: not on the FY2021–FY2025 lists; up 45 since Jul 2024–Jun 2025.
Show 75 more

100 of 1,232 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 $8,843,673,025 Amentum Holdings, Inc.
4883 Support Activities for Water Transportation $811,357,533 S.C.A. - Shipping Consultants Associated Ltd.
4889 Other Support Activities for Transportation $491,939,782 International Auto Logistics, LLC
4885 Freight Transportation Arrangement $401,243,992 Crowley Government Services, Inc.
4882 Support Activities for Rail Transportation $25,883,768 Alltrack, Inc.
4884 Support Activities for Road Transportation $18,348,427 Professional Contract Services, 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 $11.2 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.
  • 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 Jul 2024–Jun 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 488 contractors in Jul 2025–Jun 2026?

1. Amentum Holdings, Inc. ($1.82B), 2. V2X, Inc. ($1.27B), 3. M1 Support Services, L.P. ($772M), 4. RTX Corporation ($564M), 5. The Boeing Company ($353M), 6. General Atomics Aeronautical Systems, Inc. ($336M), 7. Airbus US Space & Defense Inc. ($303M), 8. GDC Middle East Company ($286M), 9. Crowley Government Services, Inc. ($261M), 10. AAR Government Services Inc. ($247M).

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