Codes Titles Number of US Businesses
56 Administrative and Support and Waste Management and Remediation Services 2,204,591
561110Office Administrative Services126,428
561210Facilities Support Services4,384
561311Employment Placement Agencies 27,167
561312Executive Search Services 4,548
561320Temporary Help Services21,399
561330Professional Employer Organizations618
561410Document Preparation Services4,277
561421Telephone Answering Services 5,563
561422Telemarketing Bureaus and Other Contact Centers 1,345
561431Private Mail Centers 1,867
561439Other Business Service Centers (including Copy Shops) 4,980
561440Collection Agencies4,956
561450Credit Bureaus1,120
561491Repossession Services 2,100
561492Court Reporting and Stenotype Services 7,628
561499All Other Business Support Services 179,310
561510Travel Agencies40,104
561520Tour Operators8,418
561591Convention and Visitors Bureaus 1,092
561599All Other Travel Arrangement and Reservation Services 3,553
561611Investigation Services 9,789
561612Security Guards and Patrol Services 15,748
561613Armored Car Services 3,922
561621Security Systems Services (except Locksmiths) 12,570
561622Locksmiths 9,460
561710Exterminating and Pest Control Services23,716
561720Janitorial Services 96,277
561730Landscaping Services117,850
561740Carpet and Upholstery Cleaning Services15,163
561790Other Services to Buildings and Dwellings 79,904
561910Packaging and Labeling Services3,154
561920Convention and Trade Show Organizers3,322
561990All Other Support Services1,325,444
562111Solid Waste Collection 1,840
562112Hazardous Waste Collection 252
562119Other Waste Collection 238
562211Hazardous Waste Treatment and Disposal 3,089
562212Solid Waste Landfill 4,161
562213Solid Waste Combustors and Incinerators 33
562219Other Nonhazardous Waste Treatment and Disposal 4,612
562910Remediation Services 2,490
562920Materials Recovery Facilities 9,739
562991Septic Tank and Related Services 9,740
562998All Other Miscellaneous Waste Management Services 1,221