Who buys NAICS 336510 (Railroad Rolling Stock Manufacturing) work, who wins it, and what's open right now — from FY2026 USAspending awards and live SAM.gov solicitations.
Contract data as of Oct 30, 2026 (USAspending) · recent coverage verified weekly
| Quarter | Awards | Obligated | Change |
|---|---|---|---|
| Q1 FY2026 | 4 | $1.6M | — |
| Q2 FY2026 | 4 | $21.0M | +1253% |
| Q3 FY2026 | 13 | $1.1M | -95% |
| Q4 FY2026 · partial | 11 | $1.2M | +6% |
Federal fiscal quarters (Q1 = Oct–Dec). Awards are counted in the quarter they start; obligations are the award's obligated amount. The Department of Defense publishes contract awards to USAspending with a 90-day delay, so Q4 FY2026 is still missing most DoD awards (DoD is 95% of this market's dollars) — treat that quarter as incomplete, not as a spending decline.
The 6 largest incumbents hold 99% of the $35.8M expiring in the next 18 months, across 7 incumbent companies. A few companies hold most of this work.
| # | Incumbent | Expiring | Share |
|---|---|---|---|
| 1 | S & S FOREST PRODUCTS LLC | $17.9M | 50.1% |
| 2 | ERS INDUSTRIES, INC. | $6.9M | 19.3% |
| 3 | KNOXVILLE LOCOMOTIVE WORKS, INC. | $5.8M | 16.4% |
| 4 | EASTERN R&E CO. LTD | $3.1M | 8.5% |
| 5 | QUALITY TURBOCHARGER COMPONENTS LLC | $886K | 2.5% |
| 6 | HARMER STEEL PRODUCTS COMPANY | $657K | 1.8% |
Companies are corporate families (USAspending parent UEI), as in the contractor rankings. Computed Oct 30, 2026 over that day's 18-month window.
| Ends | Contract · incumbent | Obligated |
|---|---|---|
| Feb 27, 2027 | Railroad Materials S & S FOREST PRODUCTS LLC · Department of Defense · W519TC26CA020 | $17.9M |
| Nov 20, 2026 | Manufacture and Delivery of 25 Boxcars for Earle Naval Weapons Station ERS INDUSTRIES, INC. · Department of Transportation · 6913G625P800080 | $6.9M |
| Jan 31, 2027 | Manufacture and Deliver Up to Two New Energy Efficient Locomotives for the U.s Army. This Modification Adds Deviated Far Clause 52.222-90… KNOXVILLE LOCOMOTIVE WORKS, INC. · Department of Transportation · 6913G624P800086 | $5.8M |
| Dec 31, 2026 | Extend the Contract for the Period of 01 January 2026 Through 31 December 2026 by Exercising the 2ND Option Period Pursuant to Contract… EASTERN R&E CO. LTD · Department of Defense · W90VN926FA015 | $3.1M |
| Mar 29, 2027 | Rail Rolling Stock Modernization and Sustainment (RMS) Task Order for Technical Field Support (REPAIRS, Troubleshooting & Diagnostics) QUALITY TURBOCHARGER COMPONENTS LLC · Department of Transportation · 6913G626F40021N | $886K |
| Apr 16, 2027 | Repairs to the 1 Yoke on Mcalester Army Ammunitions Plant (MCAAP) Rail System HARMER STEEL PRODUCTS COMPANY · Department of Defense · W519TC26PA062 | $657K |
| Dec 4, 2026 | Stea - Rehab 1901 Diesel Locomotive MCHUGH RAILROAD MAINTENANCE EQUIPMENT, INC. · Department of the Interior · 140P4523C0007 | $505K |
See every expiring NAICS 336510 contract in the Recompete Tracker →
Contracts with at least $250K obligated whose final end date — every option exercised — falls in the window, counted from Oct 31, 2026. These are the Recompete Tracker's default filters (18 months, ≥$250K), so the figures match the tracker for NAICS 336510. “Obligated to date” is what has been obligated on the contract so far, not the value of the follow-on. An end date is when the work stops, not when the replacement is solicited — that usually happens 6–18 months earlier. Source: USAspending.gov prime awards.
| Offers received | Awards | Share |
|---|---|---|
| 1 | 7 | 22.6% |
| 2 | 1 | 3.2% |
| 3–5 | 7 | 22.6% |
| 6–10 | 13 | 41.9% |
| 11+ | 3 | 9.7% |
From FPDS fields on contract awards that started in FY2026. Offers received is recorded on 97% of these 32 awards and extent competed on 100% — much of the USAspending bulk archive leaves both blank — so each share is over the awards where the field is recorded, not all awards. FPDS's placeholder count of 999 offers is excluded. Task orders under multiple-award vehicles often report the vehicle's offer count, which inflates averages; the single-offer share is the steadier signal. “Not competed” = not competed, not competed under simplified acquisition, or not available for competition (sole-source authorities, including 8(a) directed awards).
| # | Contractor | Obligated | Share |
|---|---|---|---|
| 1 | S & S FOREST PRODUCTS LLC | $17.9M | 72.0% |
| 2 | EASTERN R&E CO. LTD | $3.1M | 12.3% |
| 3 | WFEL HOLDINGS LIMITED | $1.3M | 5.2% |
| 4 | QUALITY TURBOCHARGER COMPONENTS LLC | $889K | 3.6% |
| 5 | HARMER STEEL PRODUCTS COMPANY | $657K | 2.6% |
| 6 | ATAP INC | $243K | 1.0% |
| 7 | HOPKINS JR DAVID | $237K | 1.0% |
| 8 | MILITARY AIRLIFT EXPERTS LLC (MILAIRX LLC) | $171K | 0.7% |
| 9 | JA MOODY LLC | $153K | 0.6% |
| 10 | LKR, INC. | $118K | 0.5% |
Registrations are rolled up to their corporate parent (USAspending parent UEI), so a company with several SAM registrations ranks once. Track record: fiscal years FY2015–FY2024 in which the company family received prime awards from any agency (USAspending.gov, by UEI; earlier years aren't loaded). Awards and obligations in this table are FY2026.
| Agency | Obligated | Share |
|---|---|---|
| Department of Defense | $23.7M | 95.3% |
| Department of Transportation | $904K | 3.6% |
| Department of the Interior | $237K | 1.0% |
| Department of Commerce | $16K | 0.1% |
| Set-aside type | Obligated | Share |
|---|---|---|
| Small business set-aside | $19.4M | 92.9% |
| 8(a) | $0 | 0.0% |
| SDVOSB | $0 | 0.0% |
| WOSB / EDWOSB | $0 | 0.0% |
| HUBZone | $0 | 0.0% |
| Other (Indian economic enterprise, veteran, …) | $1 | 0.0% |
| No set-aside (full & open) | $1.5M | 7.1% |
Share of obligations on awards whose set-aside type is recorded — 84% of this market's dollars. Most USAspending bulk-archive records leave the field blank, so blank awards are excluded rather than counted as full & open.
Links open the notice on SAM.gov.
Source: USAspending.gov contract awards (prime awards with a start date from Oct 1, 2025 through Sep 30, 2026), SAM.gov contract opportunities, and SBA size standards. Recompetes are contracts whose final end date — options included — falls in the next 12 months. Figures are recomputed when a new USAspending load lands. See our data sources.