What is SIC code 3550?

SIC code 3550 represents the Special Industry Machinery (No Metalworking Machinery) industry. SIC (Standard Industrial Classification) is a four-digit code system used by the U.S. SEC to classify companies by their primary line of business. There are 4 public companies registered under this code in the SEC EDGAR database.

Special Industry Machinery (No Metalworking Machinery)

Q: How many public companies are in the Special Industry Machinery (No Metalworking Machinery) industry?

There are 4 SEC-registered public companies classified under SIC code 3550 (Special Industry Machinery (No Metalworking Machinery)) in the SEC EDGAR database.

Q: What is the largest Special Industry Machinery (No Metalworking Machinery) company by revenue?

nVent Electric plc is the largest company in the Special Industry Machinery (No Metalworking Machinery) industry by revenue, reporting $3.9B in FY2025 according to its SEC EDGAR 10-K annual filing. Companies in this industry with available XBRL data collectively reported $9.1B in revenue across their most recent fiscal years.

SIC 3550 · 4 companies

This page lists all SEC-registered public companies classified under SIC code 3550 (Special Industry Machinery (No Metalworking Machinery)). SIC — Standard Industrial Classification — is a four-digit code system used by the SEC to group companies by their primary line of business. You can also view financial rankings for this industry.

The Special Industry Machinery (No Metalworking Machinery) industry includes 4 SEC-registered public companies. The largest by revenue is nVent Electric plc, which reported $3.9B in FY2025. Companies in this industry with available XBRL data collectively reported $9.1B in revenue across their most recent fiscal years.

Company	Ticker	Exchange	State	Filings
JBT MAREL Corp	JBTM	NYSE	DE	1,004
KADANT INC	KAI	NYSE	DE	1,000
PENTAIR plc	PNR	NYSE	L2	1,000
nVent Electric plc	NVT	NYSE	L2	720