Global Janitorial Service Market Overview 2023-2028  The global janitorial service market size reached US$ 300.7 Billion in 2022. Looking forward, IMARC Group expects the market to reach US$ 435.6 Billion by 2028, exhibiting a growth rate (CAGR) of 6.40%during 2023-2028. Janitorial services encompass the professional cleaning and upkeep solutions extended to a wide range of...