Active
Veteran Owned BusinessSmall Business
Overview
- Legal name
- ATOM RAIL LLC
- Registered location
- LIBERTY HILL, SC, USA
- Website
- Company website ↗
- Primary NAICS
- 488210 — Support Activities for Rail Transportation
- Latest award activity
- Jun 6, 2026
Read company summary
ATOM RAIL LLC is associated with UEI HLLSFLLCXQX9 and CAGE 8SS30 in public federal records. AcornBids currently links 2 prime awards totaling $4.4M in obligations to this entity. Its largest recorded federal customer by obligations is Department of Defense. Its recorded federal awards include work classified as All Other Transit and Ground Passenger Transportation; Support Activities for Rail Transportation. These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 488210 (Support Activities for Rail Transportation). Its public SAM.gov registration lists LIBERTY HILL, SC, USA.
At a glance
Lifetime prime obligations$4.4M
Prime awards2
Awards with future end dates2
Top-agency concentration100.0%
Prime contract obligations across loaded award records. Obligations are not revenue or contract ceilings. Summary updated Sep 27, 2026. Refresh pending; these totals may be out of date.
Business information
Public SAM.gov registration details.
- Legal name
- ATOM RAIL LLC
- UEI
- HLLSFLLCXQX9
- CAGE
- 8SS30
- Registered address
- 3662 JOHN G RICHARDS ROAD, LIBERTY HILL, SC, 29074, USA
- Registration status
- Active
- Primary NAICS
- 488210 — Support Activities for Rail Transportation
- SAM activation
- Feb 12, 2026
- Initial registration
- Nov 18, 2020
- Entity start
- Jun 18, 2020
- SAM updated
- Feb 12, 2026
- Registration expires
- Feb 10, 2027
- Fiscal year end
- Dec 31
- Place of incorporation
- SC, USA
Federal award analysis
Net transaction obligations by federal fiscal period.
Transaction history is not available in the loaded data. Annual funding is not estimated from current award totals.
Recent federal awards
Prime contract awards. Select an award to review its history and source evidence.
| Award / description | Awarding agency | Obligations | Start date | End date |
|---|---|---|---|---|
| FA480024P0009GSA VEHICLE FLEET AND RAIL OPERATIONS MANAGEMENT SERVICES | Department of Defense | $4.7M | Feb 1, 2024 | Jun 30, 2029 |
| W911S025PA028US ARMY TRANSPORTATION SCHOOL SUSTAINMENT CENTER OF EXCELLENCE (SCOE), MARITIME AND INTERMODAL TRAINING DEPARTMENT (MITD), RAILCAR MAINTENANCE. | Department of Defense | $284.2K | Sep 30, 2025 | Sep 29, 2030 |
Upcoming positioning windows
Modeled recompete windows are estimates, not announced solicitations or guarantees.
Registration, certifications & contacts
| Registration evidence | Date |
|---|---|
| SAM updated | Feb 12, 2026 |
| Source loaded | Sep 26, 2026 |
| Initial registration | Nov 18, 2020 |
| Entity start | Jun 18, 2020 |
Registration classifications: Self Certified Small Disadvantaged Business, Veteran Owned Business, Small Business. These are separate from the reported certificates above.
| Industry | Reported size status |
|---|---|
| 482111 — Line-Haul Railroads | Not reported |
| 482112 — Short Line Railroads | Not reported |
| 485112 — Commuter Rail Systems | Not reported |
| 488210 — Support Activities for Rail Transportation | Not reported |
| Contact | Role | Published contact methods | Evidence | Source date |
|---|---|---|---|---|
| ADAM P MCDOWELL | Government business | Contact method not published | SAM registration | Not available |
| ADAM P MCDOWELL | Electronic business | Contact method not published | SAM registration | Not available |
Registered industries
- 482111 — Line-Haul Railroads
- 482112 — Short Line Railroads
- 485112 — Commuter Rail Systems
- 488210 — Support Activities for Rail Transportation
Registered products and services
- 2210 — Locomotives
- 2220 — Rail Cars
- 2230 — Right-of-Way Construction and Maintenance Equipment, Railroad
- 2240 — Locomotive and Rail Car Accessories and Components
- 2250 — Track Material, Railroad
- E1LB — PURCHASE OF HIGHWAYS, ROADS, STREETS, BRIDGES, AND RAILWAYS
- H122 — Quality Control Services: Railway Equipment
- H222 — Equipment and Materials Testing: Railway Equipment
- H322 — Inspection and Laboratory Services (except medical/dental): Railway Equipment
- H922 — Other Quality Control, Testing and Inspection Services: Railway Equipment
- J022 — Maintenance, Repair and Rebuilding of Equipment: Railway Equipment
- K022 — Modification of Equipment: Railway Equipment
- L022 — Technical Representation Services: Railway Equipment
- M1LB — OPERATION OF HIGHWAYS, ROADS, STREETS, BRIDGES, AND RAILWAYS
- N022 — Installation of Equipment: Railway Equipment
- W022 — Lease or Rental of Equipment: Railway Equipment
- X1LB — LEASE/RENTAL OF HIGHWAYS, ROADS, STREETS, BRIDGES, AND RAILWAYS
- Y1LB — CONSTRUCTION OF HIGHWAYS, ROADS, STREETS, BRIDGES, AND RAILWAYS
- Z1LB — MAINTENANCE OF HIGHWAYS/ROADS/STREETS/BRIDGES/RAILWAYS
- Z2LB — REPAIR OR ALTERATION OF HIGHWAYS/ROADS/STREETS/BRIDGES/RAILWAYS
Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source
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Data coverage and methodology
Sources: SAM.gov registration, USAspending awards and transactions, and linked supporting records. Prime contract obligations, IDV ceilings and assistance amounts are kept separate. Missing records are not zero activity. Company claims are labeled separately. Recompete signals are rule-based scores out of 100. Positioning windows are AcornBids estimates.
No official subaward rows are loaded, so Acorn does not claim known teaming relationships.
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