# NAICS 333519: Rolling Mill and Other Metalworking Machinery Manufacturing

Breadcrumb: [NAICS codes](https://bidrover.com/naics) › [333519 Rolling Mill and Other Metalworking Machinery Manufacturing](https://bidrover.com/naics/333519)

This U.S. industry comprises establishments primarily engaged in manufacturing rolling mill machinery and equipment and/or other metalworking machinery (except industrial molds; special dies and tools, die sets, jigs, and fixtures; cutting tools and machine tool accessories; and machine tools).

- NAICS code: 333519
- Title: Rolling Mill and Other Metalworking Machinery Manufacturing
- Sector: 31-33 Manufacturing
- Subsector: 333 Machinery Manufacturing
- Industry group: 3335 Metalworking Machinery Manufacturing
- NAICS industry: 33351 Metalworking Machinery Manufacturing
- SBA size standard: 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 333519?

NAICS 333519 is "Rolling Mill and Other Metalworking Machinery Manufacturing" in the 2022 North American Industry Classification System, in sector 31-33 (Manufacturing). This U.S. industry comprises establishments primarily engaged in manufacturing rolling mill machinery and equipment and/or other metalworking machinery (except industrial molds; special dies and tools, die sets, jigs, and fixtures; cutting tools and machine tool accessories; and machine tools).

### What is the SBA size standard for NAICS 333519?

A business is small under NAICS 333519 at or below 500 employees, including affiliates (13 CFR 121.201). Confirm the standard named in each solicitation.

### How many government bids are open under NAICS 333519?

No open bid in BidRover cites NAICS 333519 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 333519 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

- [333511 Industrial Mold Manufacturing](https://bidrover.com/naics/333511)
- [333517 Machine Tool Manufacturing](https://bidrover.com/naics/333517)
- [333514 Special Die and Tool, Die Set, Jig, and Fixture Manufacturing](https://bidrover.com/naics/333514)
- [333515 Cutting Tool and Machine Tool Accessory Manufacturing](https://bidrover.com/naics/333515)

---

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.