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 →
← Back to NAICS Codes
NAICS Code· 327993

NAICS 327993: Mineral Wool Manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing mineral wool and mineral wool (i.e., fiberglass) insulation products made of such siliceous materials as rock, slag, and glass or combinations thereof. Cross-References.Show more

NAICS 327993 – Mineral Wool Manufacturing covers the production of inorganic fibrous insulation materials derived from molten rock, slag, or glass, including stone wool, slag wool, and fiberglass products used for thermal, acoustical, and fire-resistant applications. These materials are critical in federal construction and retrofit projects where compliance with energy efficiency standards, fire safety codes, and sound attenuation requirements is mandatory.

14
Active Contracts
$13.5M
Total Obligations (12mo)
17
Awarded Contracts (12mo)
11
Contractors Awarded (12mo)
1
Median Bidders per Award
-46.2%
YoY Growth

Industry Spending Overview

Federal obligations, top contractors and agencies, and related industry codes for NAICS 327993.

AI Industry Description

NAICS 327993 – Mineral Wool Manufacturing covers the production of inorganic fibrous insulation materials derived from molten rock, slag, or glass, including stone wool, slag wool, and fiberglass products used for thermal, acoustical, and fire-resistant applications. These materials are critical in ...

NAICS 327993 – Mineral Wool Manufacturing covers the production of inorganic fibrous insulation materials derived from molten rock, slag, or glass, including stone wool, slag wool, and fiberglass products used for thermal, acoustical, and fire-resistant applications. These materials are critical in federal construction and retrofit projects where compliance with energy efficiency standards, fire safety codes, and sound attenuation requirements is mandatory. The manufacturing process involves high-temperature melting, fiberization, and binder curing to produce rigid or flexible batts, boards, and loose-fill insulation. In government contracting, this NAICS supports infrastructure modernization, military facility upgrades, and energy conservation initiatives across federal buildings, laboratories, and housing units. While not a direct service category, mineral wool is an essential component in construction contracts awarded under broader building systems and energy retrofit programs. No contractor data is available to identify top performers in this NAICS code within the federal marketplace. The sector likely includes a mix of large industrial manufacturers, specialized insulation suppliers, and small businesses certified under small business programs, though none have emerged as dominant award recipients based on current procurement records. No agency data is available to pinpoint primary buyers. However, demand is expected to originate from agencies managing large real estate portfolios, such as the General Services Administration, Department of Defense, and Department of Energy, particularly for projects under the Federal Energy Management Program or base infrastructure renewal initiatives. The competitive landscape is characterized by low procurement volume relative to other construction-related NAICS codes, with demand driven by compliance rather than direct acquisition. Opportunities exist for manufacturers that can certify products to meet federal specifications such as ASTM C612 or UL classifications, and who can integrate into broader building envelope contracts. Trends suggest growing emphasis on sustainable, non-combustible insulation materials, creating potential for suppliers with green product certifications and supply chain transparency.

Small Business Size Standard

The SBA threshold that decides who can bid NAICS 327993 work as a small business.

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.

Top Contractors

Companies with the highest total award value under NAICS 327993, ranked by dollars won.

Top Agencies

Federal agencies directing the most contract spending toward NAICS 327993.

Department Of Defense16 awards$13.5M
Navsup Flt Logistics Ctr Puget Sound1 award$25K

Competition

How many companies historically bid on federal awards in NAICS 327993, 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. · 2,925 reported awards

Median Bidders

1

Per reported award, all-time

Single-Bid Awards

65%

Share of reported awards with one bidder

10+ Bidder Awards

1%

Share of reported awards with 10+ bidders

Reported Awards

2,925

93% of 3,144 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
327993This Code
Mineral Wool Manufacturing
Usually Single-Bid165%
2,92593% of 3,144
32799NAICS Industry
Fewer Bidders239%
28,61393% of 30,887
3279Industry Group
Other Nonmetallic Mineral Product Manufacturing
Fewer Bidders241%
70,52750% of 142,297
327Subsector
Fewer Bidders240%
126,74662% of 205,047
32Sector
Manufacturing
Moderate Competition331%
3,145,73729% of 10,805,773

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 Mineral Wool Manufacturing, by shared sector, subsector, and industry group.

Abrasive Product Manufacturing

This industry comprises establishments primarily engaged in manufacturing abrasive grinding wheels o...
327910Same Industry GroupHigh Similarity

Cut Stone and Stone Product Manufacturing

This U.S. industry comprises establishments primarily engaged in cutting, shaping, and finishing gra...
327991Same Industry GroupHigh Similarity

Ground or Treated Mineral and Earth Manufacturing

This U.S. industry comprises establishments primarily engaged in calcining, dead burning, or otherwi...
327992Same Industry GroupHigh Similarity

All Other Miscellaneous Nonmetallic Mineral Product Manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing nonmetallic mineral p...
327999Same Industry GroupHigh Similarity

Pottery, Ceramics, and Plumbing Fixture Manufacturing

This industry comprises establishments primarily engaged in shaping, molding, glazing, and firing po...
327110Same SubsectorMedium Similarity

Clay Building Material and Refractories Manufacturing

This industry comprises establishments primarily engaged in shaping, molding, baking, burning, or ha...
327120Same SubsectorMedium Similarity

Flat Glass Manufacturing

This U.S. industry comprises establishments primarily engaged in (1) manufacturing flat glass by mel...
327211Same SubsectorMedium Similarity

Other Pressed and Blown Glass and Glassware Manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing glass by melting sili...
327212Same SubsectorMedium Similarity

Explore contracts across multiple NAICS codes Browse all NAICS Codes

Dotted
NAICS 327993 FAQ

Frequently Asked Questions

NAICS code 327993 covers Mineral Wool Manufacturing. This U.S. industry comprises establishments primarily engaged in manufacturing mineral wool and mineral wool (i.e., fiberglass) insulation products made of such siliceous materials as rock, slag, and glass or combinations thereof. Cross-References.

Recently Posted in Mineral Wool Manufacturing

Win Contracts in Mineral Wool Manufacturing

Get AI-powered intelligence on NAICS 327993 procurement

Real-time contract opportunities for NAICS 327993 (Mineral Wool Manufacturing)

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