01 / NAICS Market Profile
NAICS 336510 Railroad Rolling Stock Manufacturing Federal Contracts
North American Industry Classification System code 336510
Federal contract activity classified under Railroad Rolling Stock Manufacturing across FY 2020–FY 2026. Net obligations include both new obligations and subsequent deobligations.
02 / Market Size
How large is the NAICS 336510 federal market?
03 / Spending Trend
NAICS 336510 contract spending by fiscal year
Annual obligations, activity, and participation across the same FY 2020–FY 2026 profile window.
Latest closed fiscal year$25.50M
FY 2026| Fiscal year | Obligations | Actions | Vendors | Customers | Change |
|---|---|---|---|---|---|
| FY 2020 | $2.77M | 60 | 34 | 9 | — |
| FY 2021 | $4.26M | 49 | 28 | 9 | +53.9% |
| FY 2022 | $8.96M | 39 | 22 | 8 | +110.3% |
| FY 2023 | $9.20M | 39 | 23 | 7 | +2.6% |
| FY 2024 | $21.51M | 53 | 30 | 9 | +133.9% |
| FY 2025 | $18.43M | 59 | 33 | 6 | −14.3% |
| FY 2026 | $25.50M | 42 | 26 | 7 | +38.3% |
04 / Top Federal Customers
Which federal agencies buy most in this industry?
Ranked by net obligations during FY 2020–FY 2026.
| Federal customer | Code | Obligations | Actions | Vendors | Market share |
|---|---|---|---|---|---|
| DEPT OF THE ARMY | 2100 | $48.78M | 141 | 49 | 53.8% |
| OFFICE OF THE SECRETARY | 6901 | $35.39M | 43 | 13 | 39.1% |
| DEFENSE LOGISTICS AGENCY | 97AS | $2.99M | 95 | 28 | 3.3% |
| DEPT OF THE AIR FORCE | 5700 | $1.44M | 2 | 1 | 1.6% |
| NATIONAL PARK SERVICE | 1443 | $1.42M | 23 | 11 | 1.6% |
| FEDERAL RAILROAD ADMINISTRATION | 6930 | $213.9K | 12 | 2 | 0.2% |
| VETERANS AFFAIRS, DEPARTMENT OF | 3600 | $128.1K | 2 | 1 | 0.1% |
| NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION | 1330 | $84.7K | 4 | 3 | 0.1% |
| DEPT OF THE NAVY | 1700 | $82.3K | 7 | 5 | 0.1% |
| STATE, DEPARTMENT OF | 1900 | $51.7K | 4 | 2 | 0.1% |
05 / Contracting Offices
Which contracting offices buy in NAICS 336510?
Ranked by net obligations during FY 2020–FY 2026.
| Office | Code | Agency | Obligations | Actions | Vendors | Market share |
|---|---|---|---|---|---|---|
| 6913G6 VOLPE NATL. TRANS. SYS CNTR | 6913G6 | OFFICE OF THE SECRETARY | $35.39M | 43 | 13 | 39.1% |
| W6QK ACC-RI | W519TC | DEPT OF THE ARMY | $24.28M | 36 | 17 | 26.8% |
| 0906 AQ CO DET A CONTRACTI | W90VN9 | DEPT OF THE ARMY | $18.59M | 24 | 2 | 20.5% |
| DLA TROOP SUPPORT | SPE8EE | DEFENSE LOGISTICS AGENCY | $2.34M | 59 | 16 | 2.6% |
| W4MM USA JOINT MUNITIONS CMD | W52P1J | DEPT OF THE ARMY | $2.18M | 8 | 6 | 2.4% |
| FA8201 AFSC OL H PZIO | FA8201 | DEPT OF THE AIR FORCE | $1.44M | 2 | 1 | 1.6% |
| W6QK ACC- DTA | W912CH | DEPT OF THE ARMY | $1.30M | 1 | 1 | 1.4% |
| W6QM MICC-FT DRUM | W911S2 | DEPT OF THE ARMY | $1.15M | 32 | 15 | 1.3% |
| NER SUPPLY MABO(45000) | 140P45 | NATIONAL PARK SERVICE | $1.13M | 14 | 6 | 1.2% |
| W6QK ACC ANAD | W911KF | DEPT OF THE ARMY | $688.2K | 23 | 8 | 0.8% |
06 / Top Vendors
Which contractors lead the NAICS 336510 market?
| Vendor | Obligations | Actions | Customers | Market share | Latest activity |
|---|---|---|---|---|---|
| S & S FOREST PRODUCTS, LLC | $17.91M | 1 | 1 | 19.8% | Apr 28, 2026 |
| EBENEZER RAILCAR SERVICES INC. | $12.03M | 8 | 3 | 13.3% | Aug 26, 2026 |
| EASTERN R&E CO. LTD | $9.30M | 6 | 1 | 10.3% | Jan 26, 2026 |
| SHIN SUNG SYSTEM CO,.LTD. | $9.29M | 19 | 1 | 10.3% | Jan 13, 2025 |
| SPECSYS INC | $7.86M | 8 | 1 | 8.7% | Sep 23, 2025 |
| KNOXVILLE LOCOMOTIVE WORKS, INC. | $5.85M | 5 | 1 | 6.5% | Jul 23, 2026 |
| OGNAGNUS LLC | $3.89M | 4 | 1 | 4.3% | Jan 9, 2026 |
| INNOVATIVE QUALITY SOLUTIONS, LLC | $2.86M | 7 | 2 | 3.2% | Mar 10, 2022 |
| AMERICAN EQUIPMENT COMPANY | $2.21M | 5 | 1 | 2.4% | Dec 9, 2025 |
| HARMER STEEL PRODUCTS COMPANY | $1.73M | 13 | 2 | 1.9% | Mar 11, 2026 |
07 / Product and Service Mix
What products and services are purchased under NAICS 336510?
| PSC | Description | Obligations | Actions | Vendors | Share |
|---|---|---|---|---|---|
| 2220 | RAIL CARS | $33.58M | 40 | 8 | 37.1% |
| 2250 | TRACK MATERIAL, RAILROAD | $20.80M | 55 | 15 | 23.0% |
| 2210 | LOCOMOTIVES | $17.16M | 29 | 9 | 18.9% |
| 2230 | RIGHT-OF-WAY CONSTRUCTION AND MAINTENANCE EQUIPMENT, RAILROAD | $6.83M | 26 | 11 | 7.5% |
| J022 | MAINT/REPAIR/REBUILD OF EQUIPMENT- RAILWAY EQUIPMENT | $5.41M | 24 | 12 | 6.0% |
| 2240 | LOCOMOTIVE AND RAIL CAR ACCESSORIES AND COMPONENTS | $4.03M | 72 | 37 | 4.5% |
| 4930 | LUBRICATION AND FUEL DISPENSING EQUIPMENT | $1.63M | 45 | 14 | 1.8% |
| 2010 | SHIP AND BOAT PROPULSION COMPONENTS | $364.7K | 16 | 1 | 0.4% |
| AS11 | TRANSPORTATION R&D SERVICES; SURFACE TRANSPORTATION, PUBLIC TRANSIT, AND RAIL; BASIC RESEARCH | $314.8K | 9 | 1 | 0.3% |
| 5510 | LUMBER AND RELATED BASIC WOOD MATERIALS | $152.5K | 1 | 1 | 0.2% |
08 / Buying Pattern
How does the government buy in NAICS 336510?
| Common action type | Obligations | Actions |
|---|---|---|
| PURCHASE ORDER | $47.36M | 254 |
| DELIVERY ORDER | $19.91M | 48 |
| DEFINITIVE CONTRACT | $23.34M | 39 |
09 / Recent Contract Awards
What was awarded most recently in NAICS 336510?
10 / Market Interpretation
How should contractors evaluate this market?
Start with the spending direction
Compare annual obligations with actions and vendor participation. Growth driven by only a few large actions represents a different opportunity from broad, recurring demand.
Follow the actual buyers
Move from federal customers to contracting offices. Offices reveal where acquisition responsibility and recurring purchasing activity are concentrated.
Measure accessible demand
Use competition, small-business participation, incumbent vendors, and PSC mix before treating the full $90.62M market as addressable.