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 2019–FY 2025. 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 2019–FY 2025 profile window.
Latest closed fiscal year$18.43M
FY 2025| Fiscal year | Obligations | Actions | Vendors | Customers | Change |
|---|---|---|---|---|---|
| FY 2019 | $9.46M | 109 | 39 | 10 | — |
| FY 2020 | $2.77M | 60 | 34 | 9 | −70.8% |
| 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% |
04 / Top Federal Customers
Which federal agencies buy most in this industry?
Ranked by net obligations during FY 2019–FY 2025.
| Federal customer | Code | Obligations | Actions | Vendors | Market share |
|---|---|---|---|---|---|
| OFFICE OF THE SECRETARY | 6901 | $36.53M | 47 | 12 | 49.0% |
| DEPT OF THE ARMY | 2100 | $31.58M | 196 | 50 | 42.3% |
| DEFENSE LOGISTICS AGENCY | 97AS | $2.67M | 97 | 30 | 3.6% |
| DEPT OF THE AIR FORCE | 5700 | $1.44M | 2 | 1 | 1.9% |
| NATIONAL PARK SERVICE | 1443 | $1.19M | 24 | 13 | 1.6% |
| FEDERAL RAILROAD ADMINISTRATION | 6930 | $699.1K | 12 | 2 | 0.9% |
| VETERANS AFFAIRS, DEPARTMENT OF | 3600 | $128.1K | 2 | 1 | 0.2% |
| NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION | 1330 | $93.2K | 6 | 2 | 0.1% |
| DEPT OF THE NAVY | 1700 | $82.3K | 8 | 6 | 0.1% |
| U.S. FISH AND WILDLIFE SERVICE | 1448 | $58.0K | 4 | 2 | 0.1% |
05 / Contracting Offices
Which contracting offices buy in NAICS 336510?
Ranked by net obligations during FY 2019–FY 2025.
| Office | Code | Agency | Obligations | Actions | Vendors | Market share |
|---|---|---|---|---|---|---|
| 6913G6 VOLPE NATL. TRANS. SYS CNTR | 6913G6 | OFFICE OF THE SECRETARY | $36.53M | 47 | 12 | 49.0% |
| 0906 AQ CO DET A CONTRACTI | W90VN9 | DEPT OF THE ARMY | $15.54M | 22 | 2 | 20.8% |
| W6QK ACC-RI | W519TC | DEPT OF THE ARMY | $5.71M | 32 | 16 | 7.7% |
| 0411 AQ HQ CONTRACT AUG | W91QVN | DEPT OF THE ARMY | $3.54M | 2 | 1 | 4.7% |
| W4MM USA JOINT MUNITIONS CMD | W52P1J | DEPT OF THE ARMY | $3.34M | 12 | 7 | 4.5% |
| DLA TROOP SUPPORT | SPE8EE | DEFENSE LOGISTICS AGENCY | $1.83M | 48 | 13 | 2.5% |
| W6QK ACC ANAD | W911KF | DEPT OF THE ARMY | $1.48M | 83 | 12 | 2.0% |
| FA8201 AFSC OL H PZIO | FA8201 | DEPT OF THE AIR FORCE | $1.44M | 2 | 1 | 1.9% |
| W6QM MICC-FT DRUM | W911S2 | DEPT OF THE ARMY | $1.08M | 26 | 13 | 1.5% |
| NER SUPPLY MABO(45000) | 140P45 | NATIONAL PARK SERVICE | $901.4K | 13 | 8 | 1.2% |
06 / Top Vendors
Which contractors lead the NAICS 336510 market?
| Vendor | Obligations | Actions | Customers | Market share | Latest activity |
|---|---|---|---|---|---|
| SHIN SUNG SYSTEM CO,.LTD. | $12.83M | 20 | 1 | 17.2% | Jan 13, 2025 |
| EBENEZER RAILCAR SERVICES INC. | $11.52M | 6 | 3 | 15.4% | Aug 22, 2025 |
| SPECSYS INC | $7.86M | 8 | 1 | 10.5% | Sep 23, 2025 |
| EASTERN R&E CO. LTD | $6.25M | 4 | 1 | 8.4% | Aug 26, 2025 |
| KNOXVILLE LOCOMOTIVE WORKS, INC. | $5.85M | 4 | 1 | 7.8% | Sep 18, 2025 |
| OGNAGNUS LLC | $3.30M | 3 | 1 | 4.4% | Sep 25, 2025 |
| INNOVATIVE QUALITY SOLUTIONS, LLC | $2.86M | 7 | 2 | 3.8% | Mar 10, 2022 |
| BOSTON TRANSIT GROUP, INC. | $2.56M | 11 | 3 | 3.4% | Jul 16, 2025 |
| AMERICAN EQUIPMENT COMPANY | $2.21M | 3 | 1 | 3.0% | Aug 11, 2025 |
| KNOX KERSHAW, INC. | $2.03M | 7 | 2 | 2.7% | Sep 29, 2025 |
07 / Product and Service Mix
What products and services are purchased under NAICS 336510?
| PSC | Description | Obligations | Actions | Vendors | Share |
|---|---|---|---|---|---|
| 2220 | RAIL CARS | $36.50M | 48 | 10 | 48.9% |
| 2210 | LOCOMOTIVES | $17.68M | 47 | 12 | 23.7% |
| 2230 | RIGHT-OF-WAY CONSTRUCTION AND MAINTENANCE EQUIPMENT, RAILROAD | $7.86M | 26 | 10 | 10.5% |
| J022 | MAINT/REPAIR/REBUILD OF EQUIPMENT- RAILWAY EQUIPMENT | $4.30M | 23 | 12 | 5.8% |
| 2240 | LOCOMOTIVE AND RAIL CAR ACCESSORIES AND COMPONENTS | $2.91M | 106 | 36 | 3.9% |
| 2250 | TRACK MATERIAL, RAILROAD | $2.30M | 54 | 12 | 3.1% |
| 4930 | LUBRICATION AND FUEL DISPENSING EQUIPMENT | $1.29M | 47 | 17 | 1.7% |
| AS11 | TRANSPORTATION R&D SERVICES; SURFACE TRANSPORTATION, PUBLIC TRANSIT, AND RAIL; BASIC RESEARCH | $800.0K | 8 | 1 | 1.1% |
| 2010 | SHIP AND BOAT PROPULSION COMPONENTS | $364.7K | 16 | 1 | 0.5% |
| 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 | $49.41M | 268 |
| DELIVERY ORDER | $20.30M | 106 |
| DEFINITIVE CONTRACT | $4.87M | 34 |
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 $74.58M market as addressable.