Where is American Building Maintenance Corporate office Headquarters

American Building Maintenance provides integrated facility services. It was founded in 1909 by Morris Rosenberg. Today are about 130, 000 employees working with the company. There are around 350 offices spread across the world. The headquarters of the company is located in New York.
The company provides services in engineering HVAC and integrated mechanical services. The annual revenue of the company is around $6.4 billion. It also serves janitorial services, parking, transportation, energy, etc. The other services of the company include electric vehicle charging, renewable energy solutions, building improvements, etc.
In 1909, the founder began the company to clean shopkeepers’ windows. Later he expanded it as building maintenance company in 1913. It was the first janitor contractor to clean college campuses in 1921. In 2016, the company joined Fortune 500, a list by Fortune magazine listing top 500 US companies.
In 2017, it acquired GCA services. Lately the company has been divesting its holding to improve its financial status.