This is a list of notable cleaning companies. Cleaning is the process of removing unwanted substances, such as dirt, infectious agents, and other impurities, from an object or environment. Cleaning occurs in various commercial, industrial, environmental, and domestic contexts, which differ in scale and requirements. Examples include commercial cleaning, housekeeping, terminal cleaning (in healthcare settings) and environmental remediation (the removal of pollution or contaminants from the natural environment). Some cleaning companies perform hazardous waste cleanup.
