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NAICS 482111: Line-Haul Railroads

NAICS 482111

NAICS 482111 – Line-Haul Railroads encompasses the long-distance transportation of freight and, in limited cases, passengers via Class I, II, or III rail networks operating on fixed tracks. This sector supports the movement of bulk commodities, military equipment, defense logistics, and critical infrastructure materials across national rail corridors.

Industry Spending Overview

Federal obligations, top contractors and agencies, and related industry codes for NAICS 482111.

AI Industry Description

NAICS 482111 – Line-Haul Railroads encompasses the long-distance transportation of freight and, in limited cases, passengers via Class I, II, or III rail networks operating on fixed tracks. This sector supports the movement of bulk commodities, military equipment, defense logistics, and critical inf...

NAICS 482111 – Line-Haul Railroads encompasses the long-distance transportation of freight and, in limited cases, passengers via Class I, II, or III rail networks operating on fixed tracks. This sector supports the movement of bulk commodities, military equipment, defense logistics, and critical infrastructure materials across national rail corridors. In the government contracting landscape, line-haul rail services are essential to sustaining strategic supply chains, particularly for the Department of Defense and federal agencies requiring heavy, high-volume transport over land routes where trucking is inefficient or logistically constrained. Operations include scheduling, track maintenance coordination, intermodal transfers, and compliance with federal rail safety and security standards under FRA and DHS oversight. No contractor data is available to identify top performers in this NAICS code within the government contracting space. However, contractors in this sector typically include large freight rail operators with federal contracts, specialized logistics integrators, and occasionally small businesses providing ancillary services such as railcar maintenance, terminal operations, or compliance monitoring. No agency data is available to identify primary buyers, but demand is generally driven by defense logistics commands, the U.S. Army Corps of Engineers, and federal agencies managing strategic national stockpiles or deployed military infrastructure. These entities rely on rail transport for cost-effective, high-capacity movement of materiel across continental U.S. routes and to ports of embarkation. The competitive landscape for line-haul railroads in government contracting is highly concentrated due to the capital intensity of rail infrastructure and regulatory barriers to entry. Opportunities are limited but stable, often tied to multi-year logistics support contracts or emergency response mobilizations. Contractors with proven experience in federal rail security protocols, interoperability with military railheads, and compliance with DOT/FRA regulations are best positioned to compete. Procurement trends suggest a growing emphasis on resilience, asset tracking, and dual-use logistics capabilities.

Small business size standard

The SBA threshold that decides who can bid NAICS 482111 work as a small business.

SBA threshold
1,500 employees
Applies to the whole industry code

The SBA cap for this NAICS (13 CFR 121.201). A business at or under it can self-certify as small for work in this code, which is what makes it eligible for a small-business set-aside. The cap is set per NAICS, so the same company can be small in one code and not in another.

13 CFR 121.201, effective January 1, 2026. The SBA revises the table roughly once a year.

Key metrics

Federal obligations and activity under NAICS 482111, last 12 months.

Total Obligations

$2.2M

Last 12 months

Average Award Size

$445K

Per awarded contract

Opportunities Posted

18

Last 12 months

Active Contracts

7

Currently open

Awarded Contracts

5

Last 12 months

Awards Expiring

5

End date within 12 months

Contractors Awarded

4

Last 12 months

YoY Growth

+257.8%

vs. prior 12 months

Top contractors

Companies with the highest total award value under NAICS 482111, ranked by dollars won.

Ranked by Total Awards

Top agencies

Federal agencies directing the most contract spending toward NAICS 482111.

Ranked by Total Awards
Department Of Defense$2.2M
Total$2.2M5

Competition

How many companies historically bid on federal awards in NAICS 482111, from bidder counts reported on USAspending.

Usually Single-Bid

Half or more of reported awards drew exactly one bidder, usually a sign of incumbent-held work rather than an open field. · 281 reported awards

Median Bidders

1

Per reported award, all-time

Single-Bid Awards

83%

Share of reported awards with one bidder

10+ Bidder Awards

1%

Share of reported awards with 10+ bidders

Reported Awards

281

86% of 328 total awards

Bidder Count Distribution by Fiscal Year

Share of reported awards in each bidder-count bracket per federal fiscal year.

How this code compares up the NAICS hierarchy. Parent cohorts pool every code under their prefix, so they are the steadier baseline when a 6-digit sample is thin.

Industry FamilyCompetitionMedian BiddersSingle-BidBidder MixReported Awards
482111This Code
Line-Haul Railroads
Usually Single-Bid183%
28186% of 328
48211NAICS Industry
Usually Single-Bid182%
39088% of 442
4821Industry Group
Rail Transportation
Usually Single-Bid182%
39088% of 442
482Subsector
Usually Single-Bid182%
39088% of 442
48Sector
Transportation and Warehousing
Fewer Bidders239%
402,63885% of 473,664

Bidder counts reported on past federal awards in this NAICS (USAspending). An open opportunity has no bidders yet, so this is the historical norm for similar work, not a fact about this solicitation. Not all awards report bidder counts, and fewer bidders often means incumbent-held work rather than an easier win. Federal reporting of bidder counts fell from ~96% of awards (FY2016) to ~30% (FY2018 onward); the chart shows shares of reported awards, and washed-out stretches mark years with fewer than 30 of them.

Related NAICS codes

Industries similar to Line-Haul Railroads, by shared sector, subsector, and industry group.

Explore contracts across multiple NAICS codes Browse all NAICS Codes

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NAICS 482111 FAQ

Frequently Asked Questions

NAICS code 482111 covers Line-Haul Railroads. This U.S. industry comprises establishments known as line-haul railroads primarily engaged in operating railroads for the transport of passengers and/or cargo over a long distance within a rail network. These establishments provide for the intercity movement of trains between the terminals and stations on main and branch lines of a line-haul rail network (except for local switching services). Cross-References. Establishments primarily engaged in--

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