Codes Titles Number of US Businesses
56 Administrative and Support and Waste Management and Remediation Services 1,879,717
561110Office Administrative Services136,574
561210Facilities Support Services4,490
561311Employment Placement Agencies 23,897
561312Executive Search Services 8,716
561320Temporary Help Services20,444
561330Professional Employer Organizations592
561410Document Preparation Services3,883
561421Telephone Answering Services 5,447
561422Telemarketing Bureaus and Other Contact Centers 1,312
561431Private Mail Centers 5,728
561439Other Business Service Centers (including Copy Shops) 1,276
561440Collection Agencies4,913
561450Credit Bureaus1,165
561491Repossession Services 2,163
561492Court Reporting and Stenotype Services 7,211
561499All Other Business Support Services 192,476
561510Travel Agencies41,783
561520Tour Operators8,363
561591Convention and Visitors Bureaus 1,102
561599All Other Travel Arrangement and Reservation Services 3,588
561611Investigation Services 9,437
561612Security Guards and Patrol Services 16,099
561613Armored Car Services 3,577
561621Security Systems Services (except Locksmiths) 13,707
561622Locksmiths 9,167
561710Exterminating and Pest Control Services24,385
561720Janitorial Services 100,175
561730Landscaping Services125,776
561740Carpet and Upholstery Cleaning Services14,796
561790Other Services to Buildings and Dwellings 93,186
561910Packaging and Labeling Services3,078
561920Convention and Trade Show Organizers3,714
561990All Other Support Services949,156
562111Solid Waste Collection 1,821
562112Hazardous Waste Collection 245
562119Other Waste Collection 254
562211Hazardous Waste Treatment and Disposal 3,291
562212Solid Waste Landfill 4,783
562213Solid Waste Combustors and Incinerators 32
562219Other Nonhazardous Waste Treatment and Disposal 3,715
562910Remediation Services 2,702
562920Materials Recovery Facilities 10,295
562991Septic Tank and Related Services 10,024
562998All Other Miscellaneous Waste Management Services 1,179