Top 39 Contractors in NAICS 4882: Support Activities for Rail Transportation, 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 4882: Support Activities for Rail Transportation, FY2025.
The top 10 won 76% of NAICS 4882 contract dollars from August 2025 through July 2026
Ranking facts
- Contract obligations
- $28,243,990 Net of deobligations, by contracts coded NAICS 4882 or a code under it
- Contractors
- 40 Parent companies with an obligation
- Largest contractor
- Alltrack, Inc. $4.73 million, 16.0% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 39 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 |
Alltrack, Inc.
Top agencies
|
$4,731,334 | ||
| 2 | $4,716,696 | |||
| 3 | $4,117,885 | |||
| 4 | $2,563,480 | |||
| 5 |
Sierra Northern Railway
Top agencies
|
$1,695,022 | ||
| 6 | $1,006,577 | |||
| 7 | $1,003,635 | |||
| 8 | $909,728 | |||
| 9 | $908,994 | |||
| 10 | $819,598 | |||
| 11 | $740,016 | |||
| 12 |
Liberty Railway Services Inc.
Top agencies
|
$708,722 | ||
| 13 | $607,449 | |||
| 14 | $548,000 | |||
| 15 | $433,050 | |||
| 16 |
Berkshire Hathaway Inc.
Top agencies
|
$388,773 | ||
| 17 |
Atom Rail LLC
Top agencies
|
$284,165 | ||
| 18 | $276,184 | |||
| 19 |
G. K. Enterprises Inc.
Top agencies
|
$249,626 | ||
| 20 | $222,623 | |||
| 21 | $185,395 | |||
| 22 |
Sparta Crane & Construction LLC
Top agencies
|
$169,650 | ||
| 23 |
Kotsukensetsu Co., Ltd.
Top agencies
|
$144,274 | ||
| 24 |
Highly Skilled Veterans LLC
Top agencies
|
$137,184 | ||
| 25 | $130,842 | |||
| 26 | $124,189 | |||
| 27 | $98,926 | |||
| 28 | $84,763 | |||
| 29 | $79,675 | |||
| 30 |
Meyer Landschaftsbau GMBH
Top agencies
|
$68,444 | ||
| 31 |
Interactive Rail, LLC
Top agencies
|
$39,960 | ||
| 32 | $32,777 | |||
| 33 |
JJ Contracting Corp
Top agencies
|
$26,802 | ||
| 34 |
Gerd Kunkel
Top agencies
|
$23,222 | ||
| 35 | $22,582 | |||
| 36 |
Cranemasters Inc.
Top agencies
|
$19,115 | ||
| 37 |
SOO Line Railroad Company
Top agencies
|
$3,641 | ||
| 38 | $2,284 | |||
| 39 |
Werres Corporation
Top agencies
|
$1,504 |
Show 14 more
39 of 40 contractors listed here. See the rest on GovTribe.
Rankings for the codes under NAICS 4882
| Code | Net obligations | Largest contractor |
|---|---|---|
| 48821 Support Activities for Rail Transportation | $28,243,990 | 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 $29.6 million 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 4882 contractors in Aug 2025–Jul 2026?
1. Alltrack, Inc. ($4.73M), 2. Quality Turbocharger Components LLC ($4.72M), 3. MEB General Contractors Inc. ($4.12M), 4. Duos Technologies, Inc. ($2.56M), 5. Sierra Northern Railway ($1.7M), 6. Central Gulf Railcar Services, LLC ($1.01M), 7. Amtrac Railroad Contractors of Maryland, Inc. ($1M), 8. Japan Freight Railway Company ($910K), 9. East Japan Railway Company ($909K), 10. T & C Clearing & Railroad Repair, Inc. ($820K).
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