# NAICS 327993: Mineral Wool Manufacturing

Breadcrumb: [NAICS codes](https://bidrover.com/naics) › [327993 Mineral Wool Manufacturing](https://bidrover.com/naics/327993)

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.

- NAICS code: 327993
- Title: Mineral Wool Manufacturing
- Sector: 31-33 Manufacturing
- Subsector: 327 Nonmetallic Mineral Product Manufacturing
- Industry group: 3279 Other Nonmetallic Mineral Product Manufacturing
- NAICS industry: 32799 All Other Nonmetallic Mineral Product Manufacturing
- SBA size standard: 1,500 employees
- Open bids on BidRover: 0

## Open bids (0)

No open bids cite this code right now.

## Frequently asked questions

### What is NAICS code 327993?

NAICS 327993 is "Mineral Wool Manufacturing" in the 2022 North American Industry Classification System, in sector 31-33 (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.

### What is the SBA size standard for NAICS 327993?

A business is small under NAICS 327993 at or below 1,500 employees, including affiliates (13 CFR 121.201). Confirm the standard named in each solicitation.

### How many government bids are open under NAICS 327993?

No open bid in BidRover cites NAICS 327993 right now. Many state and local notices do not list a NAICS code, so a keyword alert for this work catches more of them.

### How do I get alerts for NAICS 327993 bids?

Save an alert on this page. A free account gets new matching bids by weekly email; the Team plan ($19/mo) sends daily alerts with match scores, the buyer, source link and documents.

## Related NAICS codes

- [332999 All Other Miscellaneous Fabricated Metal Product Manufacturing](https://bidrover.com/naics/332999)
- [327991 Cut Stone and Stone Product Manufacturing](https://bidrover.com/naics/327991)
- [327992 Ground or Treated Mineral and Earth Manufacturing](https://bidrover.com/naics/327992)
- [327999 All Other Miscellaneous Nonmetallic Mineral Product Manufacturing](https://bidrover.com/naics/327999)
- [327910 Abrasive Product Manufacturing](https://bidrover.com/naics/327910)

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Code titles and definitions: U.S. Census Bureau, North American Industry Classification System (NAICS), 2022 (https://www.census.gov/naics/). Size standards: U.S. Small Business Administration, Small Business Size Standards, 13 CFR 121.201, eCFR text current as of 2026-10-21 (https://www.ecfr.gov/current/title-13/section-121.201).

BidRover lists bids from official public sources. It is not an issuing authority; confirm the NAICS code and size standard named in each solicitation.