What is SIC code 3690?

SIC code 3690 represents the Miscellaneous Electrical Machinery, Equipment & Supplies 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 53 public companies registered under this code in the SEC EDGAR database.

Miscellaneous Electrical Machinery, Equipment & Supplies

Q: How many public companies are in the Miscellaneous Electrical Machinery, Equipment & Supplies industry?

There are 53 SEC-registered public companies classified under SIC code 3690 (Miscellaneous Electrical Machinery, Equipment & Supplies) in the SEC EDGAR database.

Q: What is the largest Miscellaneous Electrical Machinery, Equipment & Supplies company by revenue?

Sunrun Inc. is the largest company in the Miscellaneous Electrical Machinery, Equipment & Supplies industry by revenue, reporting $3.0B in FY2025 according to its SEC EDGAR 10-K annual filing. Companies in this industry with available XBRL data collectively reported $10.3B in revenue across their most recent fiscal years.

SIC 3690 · 53 companies

This page lists all SEC-registered public companies classified under SIC code 3690 (Miscellaneous Electrical Machinery, Equipment & Supplies). 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 Miscellaneous Electrical Machinery, Equipment & Supplies industry includes 53 SEC-registered public companies. The largest by revenue is Sunrun Inc., which reported $3.0B in FY2025. Companies in this industry with available XBRL data collectively reported $10.3B in revenue across their most recent fiscal years.

Company	Ticker	Exchange	State	Filings
XCHG Ltd	XCH	NASDAQ	E9	69
ZKGC New Energy Ltd	DAZSF	OTC	E9	34
ZRCN Inc.	ZRCN	—	DE	94