What is SIC code 4955?

SIC code 4955 represents the Hazardous Waste Management 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 6 public companies registered under this code in the SEC EDGAR database.

What is the largest Hazardous Waste Management company by revenue?

CLEAN HARBORS INC is the largest company in the Hazardous Waste Management industry by revenue, reporting $6.0B in FY2025 according to its SEC EDGAR 10-K annual filing. Companies in this industry with available XBRL data collectively reported $6.1B in revenue across their most recent fiscal years.

Hazardous Waste Management

Q: How many public companies are in the Hazardous Waste Management industry?

There are 6 SEC-registered public companies classified under SIC code 4955 (Hazardous Waste Management) in the SEC EDGAR database.

SIC 4955 · 6 companies

This page lists all SEC-registered public companies classified under SIC code 4955 (Hazardous Waste Management). 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 Hazardous Waste Management industry includes 6 SEC-registered public companies. The largest by revenue is CLEAN HARBORS INC, which reported $6.0B in FY2025. Companies in this industry with available XBRL data collectively reported $6.1B in revenue across their most recent fiscal years.

Company	Ticker	Exchange	State	Filings
Ambipar Emergency Response	AMBWQ	OTC	E9	116
Athena Technology Acquisition Corp. II	ATEKW	OTC	DE	190
CLEAN HARBORS INC	CLH	NYSE	MA	1,002
PERMA FIX ENVIRONMENTAL SERVICES INC	PESI	NASDAQ	DE	1,000
Sky Quarry Inc.	SKYQ	NASDAQ	DE	151
Strategic Environmental & Energy Resources, Inc.	SENR	OTC	NV	173