When you operate your own cleaning business you will be asked all types of questions from time to time. One of those questions will be the following... What is your NAICS or SIC code? When I was asked I replied "Huh... what's that?" A little homework uncovered the answer. The NAICS code for the cleaning industry The six digit code is... 561720 for anyone who is in the … [Read more...] about What is the NAICS or SIC code for a house cleaning or janitorial company?