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NAICS Code· 327120

NAICS 327120: Clay Building Material and Refractories Manufacturing

This industry comprises establishments primarily engaged in shaping, molding, baking, burning, or hardening clay refractories, nonclay refractories, ceramic tile, structural clay tile, brick, and other structural clay building materials. A refractory is a material that will retain its shape and chemical identity when subjected to high temperatures and is used in applications that require extreme resistance to heat, such as furnace linings. Cross-References. Establishments primarily engaged in--Show more

NAICS 327120 – Clay Building Material and Refractories Manufacturing encompasses the production of ceramic-based construction materials and high-temperature resistant products, including firebrick, structural clay tile, clay pipe, refractory bricks, and other fired clay products used in industrial, military, and infrastructure applications. These materials are critical for lining furnaces, kilns, incinerators, and military-grade thermal systems, as well as for durable drainage and structural applications in federal facilities and installations.

30
Active Contracts
$324K
Total Obligations (12mo)
17
Awarded Contracts (12mo)
12
Contractors Awarded (12mo)
2
Median Bidders per Award
-53.6%
YoY Growth

Industry Spending Overview

Federal obligations, top contractors and agencies, and related industry codes for NAICS 327120.

AI Industry Description

NAICS 327120 – Clay Building Material and Refractories Manufacturing encompasses the production of ceramic-based construction materials and high-temperature resistant products, including firebrick, structural clay tile, clay pipe, refractory bricks, and other fired clay products used in industrial, ...

NAICS 327120 – Clay Building Material and Refractories Manufacturing encompasses the production of ceramic-based construction materials and high-temperature resistant products, including firebrick, structural clay tile, clay pipe, refractory bricks, and other fired clay products used in industrial, military, and infrastructure applications. These materials are critical for lining furnaces, kilns, incinerators, and military-grade thermal systems, as well as for durable drainage and structural applications in federal facilities and installations. The sector supports defense, energy, and civil works projects requiring materials with exceptional thermal stability, chemical resistance, and mechanical durability under extreme conditions. While not a high-volume procurement category compared to IT or logistics, this niche is essential for mission-critical infrastructure where material performance directly impacts safety and operational continuity. No contractor data is available for this NAICS code, indicating limited visibility of prime contractors or subcontractors in government contracting databases. The competitive landscape likely includes specialized manufacturers with certifications in ASTM or military specifications, ranging from small businesses with niche refractory expertise to larger industrial ceramics producers with DOD supply chain qualifications. No agency data is available, suggesting procurement activity is decentralized or embedded within broader construction, maintenance, or environmental remediation contracts rather than tracked as standalone line items. Demand is likely driven by the Department of Defense for munitions and propulsion systems, the Department of Energy for nuclear and fossil fuel facilities, and the General Services Administration for facility upgrades requiring fire-resistant materials. The market is characterized by low competition density and high technical barriers to entry, with opportunities concentrated among firms possessing certified manufacturing processes, quality control systems compliant with MIL-STD or ASTM standards, and experience supplying to defense or federal infrastructure programs. Contractors with proven track records in refractory installation and material testing may find advantage in indirect procurement through construction or engineering services contracts.

Top Contractors

Companies with the highest total award value under NAICS 327120, ranked by dollars won.

Top Agencies

Federal agencies directing the most contract spending toward NAICS 327120.

Competition

How many companies historically bid on federal awards in NAICS 327120, from bidder counts reported on USAspending.

Fewer Bidders

Median under 3 bidders per reported award. · 629 reported awards

Median Bidders

2

Per reported award, all-time

Single-Bid Awards

34%

Share of reported awards with one bidder

10+ Bidder Awards

3%

Share of reported awards with 10+ bidders

Reported Awards

0

98% of 645 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
327120This Code
Clay Building Material and Refractories Manufacturing
Fewer Bidders234%
62998% of 645
32712NAICS Industry
Usually Single-Bid159%
2,66171% of 3,734
3271Industry Group
Clay Product and Refractory Manufacturing
Crowded Field636%
36,29491% of 39,675
327Subsector
Fewer Bidders240%
126,70262% of 204,998
32Sector
Manufacturing
Moderate Competition331%
3,142,44329% of 10,788,432

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 Clay Building Material and Refractories Manufacturing, by shared sector, subsector, and industry group.

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NAICS 327120 FAQ

Frequently Asked Questions

NAICS code 327120 covers Clay Building Material and Refractories Manufacturing. This industry comprises establishments primarily engaged in shaping, molding, baking, burning, or hardening clay refractories, nonclay refractories, ceramic tile, structural clay tile, brick, and other structural clay building materials. A refractory is a material that will retain its shape and chemical identity when subjected to high temperatures and is used in applications that require extreme resistance to heat, such as furnace linings. Cross-References. Establishments primarily engaged in--

Recently Posted in Clay Building Material and Refractories Manufacturing

NAICS: 327120
New
DIBBS
TUBE, METALLIC
Solicitation # SPE7M4-26-T-340H
Solicitation SPE7M4-26-T-340H is a fixed-price request for quotations issued by the DLA Land and Maritime Fluid Handling Division for the procurement of 210 feet of stainless steel metallic tubing. The material must be welded with a 5/8 inch outer diameter and 0.035 inch wall thickness, provided in random lengths between 5 and 20 feet. It must adhere to the SAE 30304 material specification for corrosion-resistant 19CR-10NI hydraulic annealed steel tubing and is designated as a critical application item for use in F-16 aircraft and H-53 Super Jolly helicopters. The required delivery date is April 3, 2027, with a delivery window of 218 days after order. The contract specifies that inspection and acceptance will occur at the origin. Quality assurance requires sampling in accordance with MIL-STD-1916, ASQ H1331, or a comparable zero-based sampling plan. Packaging must comply with ASTM D3951 and MIL-STD-129, while palletization must follow DLA requirement RP001. The procurement is subject to full and open competition, with a price evaluation preference available for SBA-certified HUBZone small businesses. Additionally, the contractor is prohibited from using class I ozone-depleting chemicals and must comply with the Buy American Act and Berry Amendment domestic material restrictions. Payment and receiving reports are to be processed electronically via the Wide Area WorkFlow system.
FLUID HANDLING DIVISION

POSTED

1 day ago

DEADLINE

in 3 days
View Details
NAICS: 327120
Closed
Federal
Adobe Material Supply / Specialty Masonry MaterialsThe contract seeks the supply of authentic or compatible adobe bricks, earthen plasters, and stabilizers specifically tailored for roof replacement projects requiring compliance with historic preservation standards and Buy American requirements. These materials must meet stringent quality and composition guidelines to ensure compatibility with existing historic structures while maintaining structural integrity and aesthetic authenticity. The solicitation is exclusively open to small businesses under a Small Business Set Aside designation, emphasizing support for small business participation in federal contracting. The North American Industry Classification System code 327120 identifies the scope as clay building material manufacturing, aligning the supplier’s capabilities with the production of traditional earth-based construction materials. The opportunity is posted with a response deadline of August 14, 2026, allowing potential vendors time to prepare detailed proposals that demonstrate adherence to material specifications, supply chain transparency, and compliance with federal procurement regulations. While the agency name listed as Gaoa Fws appears to be a formatting error, the parent organization is clearly the Department of the Interior, indicating the project relates to federal land or heritage conservation efforts. The place of performance details are unspecified, suggesting the work may occur across multiple historic sites under the department’s jurisdiction, requiring flexible logistics and material delivery planning. All submitted materials must be sourced and manufactured in compliance with Buy American provisions, reinforcing the commitment to domestic production and traditional building techniques.
Gaoa Fws

POSTED

24 days ago

CLOSED

15 days ago
View Details

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