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NAICS Code· 213113

NAICS 213113: Support Activities for Coal Mining

This U.S. industry comprises establishments primarily engaged in providing support activities for coal mining (except geophysical surveying and mapping, site preparation, construction, and transportation activities) on a contract or fee basis. Exploration for coal is included in this industry. Exploration services include traditional prospecting methods, such as taking core samples and making geological observations at prospective sites. Cross-References. Establishments primarily engaged in--Show more

NAICS 213113 – Support Activities for Coal Mining encompasses specialized services that enable the extraction, processing, and logistical operations of coal mining without directly engaging in mining itself. This includes site preparation, drilling and blasting support, haul road construction, equipment maintenance and repair, ventilation system servicing, dust control, and reclamation planning.

10
Active Contracts
$2.6M
Total Obligations (12mo)
159
Awarded Contracts (12mo)
109
Contractors Awarded (12mo)
3
Median Bidders per Award
-29.6%
YoY Growth

Industry Spending Overview

Federal obligations, top contractors and agencies, and related industry codes for NAICS 213113.

AI Industry Description

NAICS 213113 – Support Activities for Coal Mining encompasses specialized services that enable the extraction, processing, and logistical operations of coal mining without directly engaging in mining itself. This includes site preparation, drilling and blasting support, haul road construction, equip...

NAICS 213113 – Support Activities for Coal Mining encompasses specialized services that enable the extraction, processing, and logistical operations of coal mining without directly engaging in mining itself. This includes site preparation, drilling and blasting support, haul road construction, equipment maintenance and repair, ventilation system servicing, dust control, and reclamation planning. These activities are critical to ensuring operational safety, regulatory compliance, and environmental stewardship in coal extraction zones. While the broader coal industry has seen reduced federal engagement in recent years, this NAICS remains relevant for agencies managing legacy mining sites, federal land reclamation programs, and energy infrastructure decommissioning projects. Contractors in this space must navigate complex environmental regulations under the Surface Mining Control and Reclamation Act and possess expertise in mine closure planning, groundwater monitoring, and soil remediation. No contractor data is available for this NAICS code, indicating limited visibility of prime contractors in government procurement records. The sector likely includes small businesses and niche service providers with specialized environmental engineering or mine reclamation capabilities, rather than large defense or infrastructure primes. No agency data is available, suggesting minimal recent federal award activity. When contracts do occur, they are typically tied to the Department of the Interior’s Office of Surface Mining Reclamation and Enforcement, the U.S. Forest Service, or the Army Corps of Engineers for remediation on federal lands or former coal leases. The competitive landscape is sparse, with low opportunity density and infrequent procurement events. Contractors with proven experience in federal mine closure projects, hazardous material handling, and environmental compliance documentation are best positioned to compete when opportunities arise. Long-term trends point toward declining demand, but niche contracts for legacy site remediation and tribal land restoration may persist as targeted, non-recurring procurements.

Top Contractors

Companies with the highest total award value under NAICS 213113, ranked by dollars won.

Ranked by total awards
CompanyTotal AwardsContracts
HORIZON AEROSPACE SOLUTIONS, LLC$352K2
NORCATEC LLC$314K2
FBC ENTERPRISES LLC$289K1
ECI DEFENSE GROUP, INC.$182K2
TNN MACHINING COMPANY, L.L.C.$116K2
SKF USA INC.$103K1
WILSON PRECISION MANUFACTURING LLC$97K1
FACET (OKLAHOMA) LLC$92K1
FREIGHTLINER OF SAVANNAH, INC.$75K1
SAFRAN LANDING SYSTEMS$74K1

Top Agencies

Federal agencies directing the most contract spending toward NAICS 213113.

Department Of Defense152 awards$1.6M
DLA Aviation5 awards$526K
DLA Land And Maritime2 awards$442K

Competition

How many companies historically bid on federal awards in NAICS 213113, from bidder counts reported on USAspending.

Moderate Competition

Median 3-5 bidders per reported award. · 4,615 reported awards

Median Bidders

3

Per reported award, all-time

Single-Bid Awards

26%

Share of reported awards with one bidder

10+ Bidder Awards

10%

Share of reported awards with 10+ bidders

Reported Awards

0

74% of 6,218 total awards

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
213113This Code
Support Activities for Coal Mining
Moderate Competition326%
4,61574% of 6,218
21311NAICS Industry
Fewer Bidders239%
8,25580% of 10,302
2131Industry Group
Support Activities for Mining
Fewer Bidders239%
8,25580% of 10,302
213Subsector
Fewer Bidders239%
8,25580% of 10,302
21Sector
Mining, Quarrying, and Oil and Gas Extraction
Fewer Bidders236%
35,82787% of 41,337

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 Support Activities for Coal Mining, by shared sector, subsector, and industry group.

Drilling Oil and Gas Wells

This U.S. industry comprises establishments primarily engaged in drilling oil and gas wells for othe...
213111Same Industry GroupHigh Similarity

Support Activities for Oil and Gas Operations

This U.S. industry comprises establishments primarily engaged in performing support activities, on a...
213112Same Industry GroupHigh Similarity

Support Activities for Metal Mining

This U.S. industry comprises establishments primarily engaged in providing support activities (excep...
213114Same Industry GroupHigh Similarity

Support Activities for Nonmetallic Minerals (except Fuels) Mining

This U.S. industry comprises establishments primarily engaged in providing support activities, on a ...
213115Same Industry GroupHigh Similarity

Crude Petroleum Extraction

This industry comprises establishments primarily engaged in (1) the exploration, development, and/or...
211120Same SectorMedium Similarity

Natural Gas Extraction

This industry comprises establishments primarily engaged in (1) the exploration, development, and/or...
211130Same SectorMedium Similarity

Surface Coal Mining

This U.S. industry comprises establishments primarily engaged in one or more of the following: (1) s...
212114Same SectorMedium Similarity

Underground Coal Mining

This U.S. industry comprises establishments primarily engaged in one or more of the following: (1) u...
212115Same SectorMedium Similarity

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NAICS 213113 FAQ

Frequently Asked Questions

NAICS code 213113 covers Support Activities for Coal Mining. This U.S. industry comprises establishments primarily engaged in providing support activities for coal mining (except geophysical surveying and mapping, site preparation, construction, and transportation activities) on a contract or fee basis. Exploration for coal is included in this industry. Exploration services include traditional prospecting methods, such as taking core samples and making geological observations at prospective sites. Cross-References. Establishments primarily engaged in--

Recently Posted in Support Activities for Coal Mining

NAICS: 213113
New
DIBBS
BEARING, SLEEVE
Solicitation # SPE4A6-26-T-23ZG
This contract is for the procurement of one sleeve bearing, identified by NSN 3120001197486 and part number RS26115-7 from Hydro-Aire Aerospace Corp. The order is managed under solicitation SPE4A6-26-T-23ZG with a required delivery date of August 25, 2026, and a delivery window of five days. Shipping is set as FOB Origin, with inspection and acceptance occurring at the destination, specifically the USA DEP Corpus Christi in Texas. The agreement incorporates several DLA technical and quality requirements, including specific packaging standards per MIL-STD-2073-1E and marking guidelines per MIL-STD-129. Quality assurance and sampling must adhere to MIL-STD-1916 or ASQ H1331, utilizing a zero-based sampling plan. Additionally, the contract specifies the removal of government identification from non-accepted supplies and notes that Item Unique Identification is not required by the service customer.
ASC COMMODITIES DIVISION

POSTED

1 day ago

DEADLINE

in 7 days
View Details
NAICS: 213113
New
DIBBS
BRACKET, MOUNTING
Solicitation # SPE7L3-26-T-206T
This contract is for the procurement of one mounting bracket, identified by NSN 5340-01-523-1678, under solicitation number SPE7L3-26-T-206T. The item must be delivered within five days of order to Joint Base Lewis McChord, Washington. The procurement is governed by the DLA Master List of Technical and Quality Requirements, including specific mandates for packaging, the removal of government identification from non-accepted supplies, and the prohibition of Class I ozone-depleting chemicals. The contractor must adhere to specific technical data packages and Army drawings, utilizing DCSC drawing 16236 CS-2300-0001 for chemical agent resistant coatings where applicable. Quality assurance involves inspection and acceptance at the origin, with sampling conducted according to MIL-STD-1916 or ASQ H1331. Additionally, the contract specifies specialty metal requirements per DFARS regulations and requires marking and labeling in accordance with MIL-STD-129.
LAND SUPPLIER OPNS VEHICLE SPT

POSTED

2 days ago

DEADLINE

in 11 days
View Details
NAICS: 213113
Closed
DIBBS
STRAP, RETAINING
Solicitation # SPE7L1-26-T-951H
This solicitation issued by the Department of Defense Land Supply Chain is for the procurement of 42 retaining straps under NSN 5340-01-187-8830. The contract is identified as a commercial item procurement with a delivery requirement of 218 days after the order is placed. Performance is located in New Cumberland, Pennsylvania, and the request is managed under solicitation number SPE7L1-26-T-951H. The supplier must adhere to specific DLA packaging requirements and technical quality standards as outlined in the DLA Master List. While the provided technical data may be incomplete, the delivered items must meet all cited technical data and part number requirements. Additionally, the contract mandates the removal of government identification from any non-accepted supplies and specifies that certain data may be proprietary.
LAND SUPPLY CHAIN

POSTED

2 days ago

CLOSED

about 6 hours ago
View Details
NAICS: 213113
Closed
DIBBS
BEARING, SLEEVE
Solicitation # SPE4A6-26-T-18FR
Solicitation SPE4A6-26-T-18FR is a fixed-price request for quotations issued by the DLA Aviation ASC Commodities Division for the procurement of 48 sleeve bearings. The required items are identified by NSN 3120013681691 and RIX Industries part number A181-B7609. This is a small business set-aside under NAICS code 213113. The items are designated as critical application items and must be delivered within 171 days after the order is placed, with shipping terms set as FOB Origin. The contract mandates strict adherence to quality and technical standards, including SAE AS9003 or ISO 9001 for manufacturer inspection systems. Key requirements include physical identification and bare item marking per RQ017, and a prohibition on the intentional addition of mercury or mercury-containing compounds per NAVSEA 5100-003D. Packaging and marking must comply with MIL-STD-2073-1E and MIL-STD-129, with palletization following RP001. Inspection and acceptance will occur at the destination, specifically DLA Distribution San Joaquin in Tracy, California. All quotes must be submitted via the DIBBS portal, and payment will be processed electronically through the Wide Area WorkFlow system.
ASC COMMODITIES DIVISION

POSTED

2 days ago

CLOSED

about 6 hours ago
View Details
NAICS: 213113
Closed
DIBBS
SHAFT ASSEMBLY, FLEXIBL
Solicitation # SPE4A6-26-T-17LK
Solicitation SPE4A6-26-T-17LK is a request for quotations issued by the Department of Defense, ASC Commodities Division, for the procurement of 161 flexible shaft assemblies under NSN 6680007320561. The requirement is designated as a critical application item and must comply with MIL-DTL-10215P Revision P. Offerors must provide components from sources listed on the applicable Qualified Products List (QPL) or Qualified Manufacturers List (QML). The contract specifies a delivery timeframe of 171 days with terms set as FOB Origin, shipping to the DLA Distribution DDSP New Cumberland facility in Pennsylvania. The procurement includes strict quality and packaging mandates, requiring adherence to MIL-STD-2073-1E for packaging and MIL-STD-129 for marking. Inspection and acceptance will occur at the destination, utilizing sampling methods per MIL-STD-1916 or ASQ H1331. Key regulatory requirements include compliance with the Buy American Act, the Berry Amendment, and NIST SP 800-171 for cybersecurity. Additionally, the solicitation explicitly excludes any items produced using additive manufacturing. All quotes must be submitted via the DLA Internet Bid Board System (DIBBS), and electronic invoicing must be processed through the Wide Area Workflow (WAWF) system.
ASC COMMODITIES DIVISION

POSTED

2 days ago

CLOSED

about 6 hours ago
View Details
NAICS: 213113
New
DIBBS
PIN, STRAIGHT, HEADLESS
Solicitation # SPE4A6-26-T-22AE
This contract is for the procurement of 658 units of straight, headless pins, identified by NSN 5315-01-163-0703 and part number MS9390-800. The items are classified as critical application items and must adhere to SAE AS9390 Revision D and the DLA Master List of Technical and Quality Requirements. Delivery is required within 163 days, with a need ship date of February 12, 2027, and a final required delivery date of August 17, 2027. The contract specifies that inspection and acceptance will occur at the destination, while delivery is FOB Origin. Packaging must comply with ASTM D3951 and MIL-STD-129, with palletization following DLA packaging requirements. Quality assurance and sampling must be conducted according to MIL-STD-1916 or ASQ H1331, utilizing a zero-based sampling plan. All shipments are to be delivered to the DLA Distribution DDSP New Cumberland facility in Pennsylvania.
ASC COMMODITIES DIVISION

POSTED

4 days ago

DEADLINE

in 4 days
View Details
NAICS: 213113
New
DIBBS
PIN, STRAIGHT, HEADLE
Solicitation # SPE4A7-26-T-687Q
This contract is for the procurement of 17 straight Headle pins, identified by NSN 5315-01-472-9592 and part number MS20253-3-0512L. The items must adhere to the SAE AS20253 Revision B standard and are designated as critical application items. Delivery is required within 20 days after the order, with a required delivery date of August 27, 2026. The shipment is FOB Origin, with both inspection and acceptance occurring at the origin. The agreement incorporates several DLA technical and quality requirements, including specific packaging standards under MIL-STD-2073-1E and marking requirements per MIL-STD-129. Quality assurance and sampling must comply with MIL-STD-1916 or ASQ H1331, utilizing a zero-based sampling plan. The contract specifies that covered defense information may apply and mandates strict adherence to DLA packaging and palletization requirements for procurement.
ASC SUPPLIER OPER AE AND AF DIV

POSTED

4 days ago

DEADLINE

in 4 days
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NAICS: 213113
Closed
DIBBS
CHAIN AND PIN ASSEMBLY
Solicitation # SPE4A6-26-T-21AH
This contract, identified by solicitation number SPE4A6-26-T-21AH, is for the procurement of a single Chain and Pin Assembly, part number 50375-157, under NSN 5315-01-625-2996. The acquisition is managed by the ASC Commodities Division of the Department of Defense and requires delivery to Joint Base Lewis McChord, WA. The required delivery timeframe is 20 days, with the shipment designated as FOB Origin and inspection and acceptance occurring at the destination. The agreement incorporates strict technical and quality requirements, including adherence to DLA packaging standards and specific marking protocols under MIL-STD-129. Quality assurance is governed by specific sampling methods such as MIL-STD-1916 or ASQ H1331, with defined verification levels for critical, major, and minor attributes. Packaging must comply with MIL-STD-2073-1E, and the shipment must be sent via the fastest traceable means, explicitly excluding the use of Parcel Post.
ASC COMMODITIES DIVISION

POSTED

9 days ago

CLOSED

1 day ago
View Details
NAICS: 213113
Closed
DIBBS
BEARING, WASHER, THRUST
Solicitation # SPE4A6-26-T-20XS
This solicitation from the Defense Logistics Agency involves the procurement of 28 thrust washer bearings under NSN 3120-01-517-4902. The contract is issued by the ASC Commodities Division of the Department of Defense, with a delivery requirement of 168 days after the delivery order date. Key compliance mandates include Cybersecurity Maturity Model Certification (CMMC) Level 2 requirements and strict adherence to physical identification and bare item marking protocols. While Item Unique Identification is waived per the service customer's request, the procurement is subject to specific DLA packaging and tailored higher-level quality requirements, including inspection and acceptance at the origin. The contract carries significant regulatory weight regarding data security and international trade. Covered defense information is applicable, and the technical data associated with this item is subject to export controls under either the International Traffic in Arms Regulations (ITAR) or the Export Administration Regulations (EAR). Consequently, contractors must possess approved US/Canada Joint Certification Program certification and complete required training to access and handle export-controlled technical data. All technical and quality requirements are governed by the DLA Master List, with specific provisions for the handling of non-accepted supplies and the removal of government identification.
ASC COMMODITIES DIVISION

POSTED

9 days ago

CLOSED

1 day ago
View Details
NAICS: 213113
DIBBS
CLAMP, BLOCK
Solicitation # SPE7L1-26-T-990N
This solicitation, identified by number SPE7L1-26-T-990N, is issued by the Department of Defense Land Supply Chain for the procurement of one block clamp, part number 5340-01-369-7227. The contract requires adherence to specific DLA packaging requirements and incorporates technical and quality standards as defined in the DLA Master List. A critical environmental and safety mandate prohibits the intentional addition of mercury or mercury-containing compounds to any hardware or supplies provided under this contract, with specific exceptions for functional mercury used in batteries, sensors, or weapon systems as specified by NAVSEA. Any portable instruments containing mercury must be shockproof and feature a secondary containment boundary. The procurement is categorized under NAICS code 213113, with a delivery requirement of 20 days after delivery order. Interested parties must submit responses by the deadline of August 31, 2026. The place of performance is designated as FPO, and the primary point of contact for inquiries regarding this solicitation is Michael Nordahl. All technical revisions applicable to the acquisition will be governed by the version of the master list in effect on the solicitation or award date, depending on whether the acquisition is classified as simplified or large.
LAND SUPPLY CHAIN

POSTED

9 days ago

DEADLINE

in 3 days
View Details
NAICS: 213113
DIBBS
STRAP, RETAINING
Solicitation # SPE7L1-26-T-983A
This solicitation, issued by the Department of Defense Land Supply Chain, is for the procurement of two retaining straps under part number 5340-01-477-4056. The contract requires delivery within five days after receipt of the order, with performance located in Conneaut Lake, Pennsylvania. The agreement is subject to specific DLA packaging requirements and technical quality standards as outlined in the DLA Master List. Additionally, the supplier must adhere to MIL-STD-130N for the identification marking of U.S. military property and comply with regulations regarding the removal of government identification from non-accepted supplies.
LAND SUPPLY CHAIN

POSTED

10 days ago

DEADLINE

in 3 days
View Details
NAICS: 213113
Closed
DIBBS
GOVERNMENT FIRST ARTIC
Solicitation # SPE4A6-26-T-17YD
This solicitation is for the procurement of 13 sleeve bushings under part number 0001S00000052 for the Department of Defense, specifically the ASC Commodities Division. The contract requires delivery within 501 days after order and is designated as a total small business set-aside. Performance will take place at Tinker AFB. Compliance requirements are stringent, including CMMC Level 2 certification for third-party assessment and adherence to MIL-STD-130N for item identification. The contract is subject to strict export controls under ITAR and EAR regulations, requiring contractors to have an approved US/Canada Joint Certification Program certification and completed export-controlled technical data training. Additionally, the provider must follow DLA packaging requirements and specific quality and inspection standards at the point of origin.
ASC COMMODITIES DIVISION

POSTED

12 days ago

CLOSED

4 days ago
View Details

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