# NAICS 331524: Aluminum Foundries (except Die-Casting)

Breadcrumb: [NAICS codes](https://bidrover.com/naics) › [331524 Aluminum Foundries (except Die-Casting)](https://bidrover.com/naics/331524)

This U.S. industry comprises establishments primarily engaged in pouring molten aluminum into molds to manufacture aluminum castings (except nonferrous die-castings). Establishments in this industry purchase aluminum made in other establishments.

- NAICS code: 331524
- Title: Aluminum Foundries (except Die-Casting)
- Sector: 31-33 Manufacturing
- Subsector: 331 Primary Metal Manufacturing
- Industry group: 3315 Foundries
- NAICS industry: 33152 Nonferrous Metal Foundries
- SBA size standard: 550 employees
- Open bids on BidRover: 0

## Open bids (0)

No open bids cite this code right now.

## Frequently asked questions

### What is NAICS code 331524?

NAICS 331524 is "Aluminum Foundries (except Die-Casting)" in the 2022 North American Industry Classification System, in sector 31-33 (Manufacturing). This U.S. industry comprises establishments primarily engaged in pouring molten aluminum into molds to manufacture aluminum castings (except nonferrous die-castings). Establishments in this industry purchase aluminum made in other establishments.

### What is the SBA size standard for NAICS 331524?

A business is small under NAICS 331524 at or below 550 employees, including affiliates (13 CFR 121.201). Confirm the standard named in each solicitation.

### How many government bids are open under NAICS 331524?

No open bid in BidRover cites NAICS 331524 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 331524 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

- [331523 Nonferrous Metal Die-Casting Foundries](https://bidrover.com/naics/331523)
- [331529 Other Nonferrous Metal Foundries (except Die-Casting)](https://bidrover.com/naics/331529)
- [331511 Iron Foundries](https://bidrover.com/naics/331511)
- [331512 Steel Investment Foundries](https://bidrover.com/naics/331512)
- [331513 Steel Foundries (except Investment)](https://bidrover.com/naics/331513)

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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.