Founded in 1988, Executive Cleaning Company is one of the largest cleaning contractors in the United States. It offers cleaning services for more than 1 million square feet per day and has a staff of over 100 employees. The company provides cleaning services for office buildings and health care facilities. Executive Cleaning Company s services include high-rise window washing, confidential document shredding and snow removal. It also operates an expanded floor and carpet care division. Executive Cleaning Company s ultrasonic blind and parabolic cleaning process cleans dusty blinds, chandeliers, dirty parabolic lenses and smoke-damaged electronic equipment. The company is located in Billings, Mont.