Codes Titles Number of US Businesses
56 Administrative and Support and Waste Management and Remediation Services 1,854,253
561110Office Administrative Services137,470
561210Facilities Support Services4,426
561311Employment Placement Agencies 23,633
561312Executive Search Services 8,710
561320Temporary Help Services20,246
561330Professional Employer Organizations590
561410Document Preparation Services3,770
561421Telephone Answering Services 5,377
561422Telemarketing Bureaus and Other Contact Centers 1,288
561431Private Mail Centers 6,003
561439Other Business Service Centers (including Copy Shops) 1,369
561440Collection Agencies4,811
561450Credit Bureaus1,161
561491Repossession Services 2,139
561492Court Reporting and Stenotype Services 7,041
561499All Other Business Support Services 193,432
561510Travel Agencies42,100
561520Tour Operators9,172
561591Convention and Visitors Bureaus 1,094
561599All Other Travel Arrangement and Reservation Services 3,514
561611Investigation Services 9,372
561612Security Guards and Patrol Services 15,906
561613Armored Car Services 3,496
561621Security Systems Services (except Locksmiths) 13,662
561622Locksmiths 9,106
561710Exterminating and Pest Control Services24,219
561720Janitorial Services 101,508
561730Landscaping Services126,591
561740Carpet and Upholstery Cleaning Services14,585
561790Other Services to Buildings and Dwellings 95,395
561910Packaging and Labeling Services3,051
561920Convention and Trade Show Organizers3,772
561990All Other Support Services917,609
562111Solid Waste Collection 1,813
562112Hazardous Waste Collection 251
562119Other Waste Collection 251
562211Hazardous Waste Treatment and Disposal 3,318
562212Solid Waste Landfill 5,047
562213Solid Waste Combustors and Incinerators 34
562219Other Nonhazardous Waste Treatment and Disposal 3,784
562910Remediation Services 2,674
562920Materials Recovery Facilities 10,288
562991Septic Tank and Related Services 10,032
562998All Other Miscellaneous Waste Management Services 1,143