Skip to main contentPsst! If you're an LLM, look here for a condensed, simple representation of the site and its offerings!

LiveFree Webinar — Wednesday, October 14 at 2:00 PM ET

Register Free →
CLEATUS
Get CLEATUS
← Back to NAICS Codes
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.

11
Active Contracts
$2.9M
Total Obligations (12mo)
153
Awarded Contracts (12mo)
107
Contractors Awarded (12mo)
3
Median Bidders per Award
-22.1%
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.

Small Business Size Standard

The SBA threshold that decides who can bid NAICS 213113 work as a small business.

$27.5M
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.

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
PINES QUALITY INC.$350K1
FBC ENTERPRISES LLC$289K1
NORCATEC LLC$279K1
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

Top Agencies

Federal agencies directing the most contract spending toward NAICS 213113.

Department Of Defense145 awards$1.5M
DLA Land And Maritime3 awards$792K
DLA Aviation5 awards$526K

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

4,615

74% of 6,218 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
213113This Code
Support Activities for Coal Mining
Moderate Competition326%
4,61574% of 6,218
21311NAICS Industry
Fewer Bidders239%
8,26280% of 10,310
2131Industry Group
Support Activities for Mining
Fewer Bidders239%
8,26280% of 10,310
213Subsector
Fewer Bidders239%
8,26280% of 10,310
21Sector
Mining, Quarrying, and Oil and Gas Extraction
Fewer Bidders236%
35,86687% of 41,386

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

Explore contracts across multiple NAICS codes Browse all NAICS Codes

Dotted
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 # SPE4A6-27-T-0208
Solicitation SPE4A6-27-T-0208 is a fixed-price request for quotation issued by the DLA Weapons Support ASC Commodities Division for the procurement of one sleeve bearing, identified by NSN 3120-01-412-1571. The item is designated as a critical application item and must be delivered to the Distribution Depot Puget Sound in Bremerton, Washington, with an original required delivery date of January 25, 2028, and a delivery lead time of 155 days after order. Shipping is based on FOB Origin, and inspection and acceptance will occur at the destination. The contract mandates strict adherence to technical and quality requirements, including compliance with SAE AS9003 or ISO 9001 standards for the manufacturer's inspection system. Packaging and marking must follow MIL-STD-2073-1E and MIL-STD-129, with specific prohibitions against the intentional addition of mercury or mercury-containing compounds in the hardware or packaging. Administrative requirements include the use of the Wide Area WorkFlow system for electronic invoicing and payment requests. Additionally, the contractor must comply with various federal regulations, including the Buy American Act, Berry Amendment, and DFARS requirements for safeguarding covered defense information.
DLA WEAPONS SUPPORT ASC COMMODITIES DIVISION

POSTED

3 days ago

DEADLINE

in 3 days
View Details
NAICS: 213113
New
DIBBS
PIN, SHOULDER, HEADLESS
Solicitation # SPE4A6-27-T-1245
DLA WEAPONS SUPPORT ASC COMMODITIES DIVISION

POSTED

4 days ago

DEADLINE

in 4 days
View Details
NAICS: 213113
New
DIBBS
BEARING, SLEEVE
Solicitation # SPE4A6-27-T-1518
Solicitation SPE4A6-27-T-1518 is a fixed-price, total small business set-aside contract issued by the DLA Weapons Support ASC Commodities Division for the procurement of one sleeve bearing, identified by NSN 3120-01-412-1571. This item is designated as a critical application item and must be produced in accordance with Technical Data Package Rev A Gen 1 and Basic QAP 13873 QAP-B02 Revision B. The required delivery date is January 23, 2028, with a delivery timeline of 171 days after order. Shipping is FOB Origin, with the final destination for inspection and acceptance being DLA Distribution Puget Sound in Bremerton, Washington. The contract mandates strict adherence to quality and environmental standards, including the prohibition of mercury or mercury compounds in the hardware, preservation, and packaging. Packaging and marking must comply with MIL-STD-2073-1E and MIL-STD-129, and the manufacturer's inspection system must meet SAE AS9003 or ISO 9001 standards. Administrative requirements include the use of the Wide Area WorkFlow system for electronic invoicing and payment requests. Additionally, the contractor must comply with various federal regulations, including the Buy American Act, the Berry Amendment, and DFARS requirements for safeguarding covered defense information.
DLA WEAPONS SUPPORT ASC COMMODITIES DIVISION

POSTED

4 days ago

DEADLINE

in 4 days
View Details
NAICS: 213113
New
DIBBS
PIN, STRAIGHT, HEADLESS
Solicitation # SPE4A6-27-T-0958
Solicitation SPE4A6-27-T-0958, issued by the DLA Weapons Support ASC Commodities Division, is for the procurement of two straight, headless pins under NSN 5315-01-454-2514. The contract specifies a delivery timeline of 257 days after order, with a need ship date of June 30, 2027, and a final required delivery date of October 31, 2027. Shipping is FOB Origin, with both inspection and acceptance occurring at the destination, specifically DLA Distribution Red River in Texarkana, Texas. Technical compliance requires adherence to the DLA Master List of Technical and Quality Requirements, which takes precedence over the general packaging standard ASTM D3951. All packaging must be marked and labeled per MIL-STD-129, and palletization must follow RP001. Quality assurance will be managed through sampling methods such as MIL-STD-1916 or ASQ H1331, with acceptance based on zero non-conformances. Item Unique Identification is not required for this order. The solicitation incorporates various FAR and DFARS clauses, including those regarding the Buy American and Balance of Payments Program, safeguarding covered defense information, and prohibitions on covered defense telecommunications equipment. Payment requests and receiving reports must be submitted electronically via the Wide Area WorkFlow system. The primary point of contact for this acquisition is Christopher Montgomery.
DLA WEAPONS SUPPORT ASC COMMODITIES DIVISION

POSTED

5 days ago

DEADLINE

in 3 days
View Details
NAICS: 213113
New
DIBBS
KEY, MACHINE
Solicitation # SPE4A6-27-T-1025
Solicitation SPE4A6-27-T-1025 is a fixed-price request for quotations issued by the DLA Weapons Support ASC Commodities Division for the procurement of six machine keys under NSN 5315-01-621-8307. The contract requires delivery to DLA Distribution Puget Sound in Bremerton, Washington, with a delivery schedule of 311 days after order. Inspection and acceptance are conducted at the origin. All quotes must be submitted via the DLA Internet Bid Board System (DIBBS), and a price evaluation preference is available for SBA-certified HUBZone small business concerns. The procurement is subject to stringent security and quality standards, including CMMC Level 2 certification and compliance with SAE AS9003 or ISO 9001 quality systems. Technical data for this item contains Unclassified Navy Nuclear Propulsion Information (U-NNPI/NOFORN), which prohibits access by foreign nationals and requires a signed Non-Disclosure Agreement. Additionally, the item is subject to ITAR or EAR export controls. Packaging must adhere to MIL-STD-2073-1E and MIL-STD-129, while sampling must follow MIL-STD-1916 or ASQ H1331. Payment and receiving reports are to be processed electronically through the Wide Area WorkFlow (WAWF) system.
DLA WEAPONS SUPPORT ASC COMMODITIES DIVISION

POSTED

5 days ago

DEADLINE

in 3 days
View Details
NAICS: 213113
New
DIBBS
SHAFT, SHOULDERED
Solicitation # SPE7L1-27-T-0314
Solicitation SPE7L1-27-T-0314 is a request for quotations issued by the DLA Weapons Support Land Supply Chain for the procurement of one shouldered shaft, identified by NSN 3040014914111 and part number 90015-1 from SCFM Corporation. The acquisition falls under NAICS code 213113 and is managed through the DLA Internet Bid Board System (DIBBS). The required delivery date is October 2, 2026, with a delivery lead time of 20 days after order. Shipping is handled under the First Destination Transportation program with terms as FOB Origin, and the final destination is Rose Barracks South Camp in Vilseck, Germany. The contract mandates strict adherence to MIL-STD-2073-1E for packaging and MIL-STD-129 for marking, with specific palletization requirements outlined in RP001. Inspection and acceptance will occur at the destination per FAR 52.246-1. Payment and invoicing must be processed electronically through the Wide Area Workflow (WAWF) system. Key regulatory requirements include compliance with the Buy American Act, the Berry Amendment, and NIST SP 800-171 cybersecurity assessment standards. Offers produced using additive manufacturing are ineligible for award unless specifically authorized.
DLA WEAPONS SUPPORT LAND SUPPLY CHAIN

POSTED

6 days ago

DEADLINE

in 7 days
View Details
NAICS: 213113
Closed
DIBBS
PIN, QUICK RELEASE
Solicitation # SPE4A6-26-T-37JJ
Solicitation SPE4A6-26-T-37JJ is a Request for Quotations issued by the DLA Aviation ASC Commodities Division for the procurement of 45 quick release pins, identified by NSN 5315-01-479-9257. The items are classified as critical application hardware and must be manufactured in accordance with NASM14531 Revision 2 and NAS1322 through 1326 Revision 04. Delivery is required within 158 days after order, with a need ship date of March 14, 2027, and a final required delivery date of May 9, 2027. Shipping is FOB Origin, with both inspection and acceptance occurring at the origin. The contractor must maintain a quality inspection system compliant with SAE AS9003 or ISO 9001 tailored to SAE AS9003. Sampling must follow MIL-STD-1916, ASQ H1331 Table 1, or a comparable zero-based sampling plan. Packaging must adhere to ASTM D3951 and MIL-STD-129, with DLA Master List requirements taking precedence. Additional compliance mandates include a CMMC Level 2 Self-Assessment, adherence to the Buy American Act and Berry Amendment, and the use of the Wide Area WorkFlow system for invoicing. Offers must be submitted via the DLA Internet Bid Board System, and a price evaluation preference is available for certified HUBZone Small Business Concerns.
ASC COMMODITIES DIVISION

POSTED

6 days ago

CLOSED

3 days ago
View Details
NAICS: 213113
New
DIBBS
BRACKET, VEHICULAR COMP
Solicitation # SPE7LX-27-U-0113
Solicitation SPE7LX-27-U-0113 is a request from the Defense Logistics Agency Weapons Support Strategic Acquisition Program Directorate for the procurement of vehicular mounting brackets, identified by NSN 2590-01-528-1762. This requirement may result in a unilateral Indefinite Delivery Contract for a one-year period with a maximum value of 350,000.00 dollars. The estimated annual quantity is 28 units, with a guaranteed contract minimum of 4 units and a minimum delivery order quantity of 14 units. Delivery is required within 63 days after order, with terms set as FOB Origin and inspection and acceptance occurring at the destination. The contractor must adhere to strict technical and quality standards, including RA001, RP001, and RQ011 from the DLA Master List. Packaging must comply with ASTM D3951 and MIL-STD-129, with DLA requirements taking precedence. Administrative requirements include the use of the Wide Area WorkFlow system for invoicing and payment. The contract incorporates various Federal Acquisition Regulation clauses covering order limitations, combating trafficking in persons, and hazardous material identification. Additionally, offerors must comply with the Buy American Act, the Berry Amendment, and cybersecurity standards under DFARS 252.204-7012. Quotes must be submitted via the DIBBS portal, and the use of additive manufacturing is prohibited unless specifically authorized.
DLA WEAPONS SUPPORT STRATEGIC ACQ PROGRAM DIRECTORATE

POSTED

6 days ago

DEADLINE

in 9 days
View Details
NAICS: 213113
New
DIBBS
GASKET
Solicitation # SPE7L3-27-T-0180
Solicitation SPE7L3-27-T-0180 is a Request for Quotations issued by the Defense Logistics Agency Weapons Support Land Supplier Ops Vehicle SPT for the procurement of gaskets under NSN 5330-01-525-7057. The requirement consists of two line items totaling 720 units, with 27 units for the first line and 693 units for the second. Quotations must be submitted via the DLA Internet Bid Board System by October 19, 2026. Delivery is required within 111 days after receipt of order, with an original required delivery date of March 22, 2027, and shipping terms set as FOB Origin. Inspection and acceptance will occur at the destination. The contract mandates strict adherence to quality and technical standards, requiring manufacturers to maintain an inspection system compliant with SAE AS9003 or ISO 9001. Packaging and marking must follow MIL-STD-2073-1E and MIL-STD-129, with specific requirements for hazardous materials and palletization. This procurement includes significant security and regulatory constraints, including export controls under ITAR and EAR, CMMC Level 2 Self-Assessment, and the safeguarding of covered defense information. Additionally, the solicitation incorporates Buy American and Balance of Payments programs, with a price evaluation preference available for certified HUBZone Small Business Concerns. Payment and invoicing must be processed electronically through the Wide Area Workflow system.
DLA WEAPONS SUPPORT LAND SUPPLIER OPNS VEHICLE SPT

POSTED

6 days ago

DEADLINE

in 7 days
View Details
NAICS: 213113
DIBBS
GASKET
Solicitation # SPE7L3-27-Q-0012
Solicitation SPE7L3-27-Q-0012, issued by DLA Land and Maritime, seeks quotations for 10 gaskets under National Stock Number 5330-01-530-7872. This commercial item procurement requires adherence to technical drawings TDP Rev A Gen 1 and Basic Drawing NR 16236 RE015307872. Delivery is required within 180 days after the date of award, with FOB Destination terms. Award will be based on best value, evaluating past performance, delivery timelines, and price. The government will apply a 2,500 dollar evaluation penalty for each required origin inspection if the offeror proposes origin rather than destination inspection and acceptance. Strict material and environmental standards apply, specifically prohibiting the use of asbestos, Class I ozone depleting chemicals, and intentionally added mercury. Due to the risk of ultraviolet radiation deterioration for Federal Supply Classifications 5330/5331, items must be sealed in medium duty, waterproof, greaseproof, opaque bags per MIL-DTL-117, Type II, Class C, Style 1. General packaging and marking must comply with MIL-STD-2073-1E, MIL-STD-129, and MIL-STD-130N. All payment requests and receiving reports must be processed electronically through the Wide Area WorkFlow system. Quotations are due by October 14, 2026.
LAND SUPPLIER OPNS VEHICLE SPT

POSTED

11 days ago

DEADLINE

in 1 day
View Details
NAICS: 213113
Closed
DIBBS
PIN, SHOULDER, HEADLESS
Solicitation # SPE4A6-26-T-35GC
Solicitation SPE4A6-26-T-35GC is a fixed-price request for quotations issued by the DLA Aviation ASC Commodities Division for the procurement of 731 headless shoulder pins (NSN 5315-01-416-8190). This requirement is specifically set aside for Service-Disabled Veteran-Owned Small Businesses (SDVOSB) and falls under NAICS code 213113. The delivery is required 171 days after the order, with a need ship date of March 21, 2027, and a final required delivery date of August 31, 2027. Shipping is designated as FOB Origin, with the delivery destination located in Texarkana, Texas. The contract imposes strict quality and compliance standards, requiring manufacturers to adhere to SAE AS9003 or ISO 9001. Inspection and acceptance will occur at the destination, utilizing zero-based sampling plans. Packaging and marking must comply with MIL-STD-2073-1E and MIL-STD-129. Additionally, the solicitation includes rigorous cybersecurity and export control requirements, including CMMC Level 2 self-assessment or third-party certification and adherence to ITAR or EAR regulations for technical data. Contractors must use the Wide Area WorkFlow (WAWF) system for electronic invoicing and payment requests. Compliance with the Buy American Act and the Berry Amendment is mandatory, and any use of non-domestic materials must be disclosed.
ASC COMMODITIES DIVISION

POSTED

11 days ago

CLOSED

6 days ago
View Details
NAICS: 213113
DIBBS
SHAFT, STEEL
Solicitation # SPE7M4-27-T-0064
Solicitation SPE7M4-27-T-0064 is a request for quotations issued by the DLA Land and Maritime Fluid Handling Division for the procurement of seven steel shafts. The items are identified by NSN 4820006297754 and Transdigm Inc part number 114525, and are designated as critical application items. The required delivery date is February 13, 2027, with a need ship date of August 18, 2026, and a delivery timeframe of 125 days after order. Delivery is FOB Origin, with inspection and acceptance occurring at the destination, specifically the DLA Distribution Depot Oklahoma at Tinker AFB. The contractor must adhere to strict packaging and marking standards, including MIL-STD-129 and RP001, with the DLA Master List of Technical and Quality Requirements taking precedence over ASTM D3951. All quotes must be submitted via the DIBBS system. The contract incorporates various FAR and DFARS clauses, including requirements for safeguarding covered defense information, Buy American and Balance of Payments program compliance, and the use of Wide Area Workflow for electronic invoicing and payment requests.
FLUID HANDLING DIVISION

POSTED

11 days ago

DEADLINE

in about 14 hours
View Details

Win Contracts in Support Activities for Coal Mining

Get AI-powered intelligence on NAICS 213113 procurement

Real-time contract opportunities for NAICS 213113 (Support Activities for Coal Mining)

AI-powered matching based on your business capabilities and past performance

Competitive analysis of contractors winning awards in this industry

Automated alerts when new opportunities are posted

Miguel
Hillary
Keith Deutsch
Christine

Join 750+ contractors already using CLEATUS