Naics code Naics crossreference
56142 Gathering, recording, tabulating, and presenting marketing and public opinion data, that may include telephone canvassing services--are classified in Industry 54191, Marketing Research and Public Opinion Polling.
561421 Establishments primarily engaged in providing paging or beeper transmission services are classified in U.S. Industry 517112, Wireless Telecommunications Carriers (except Satellite).
561422 Answering telephone calls and relaying messages--are classified in U.S. Industry 561421, Telephone Answering Services
561422 Wholesale or retail sales--are classified in Sector 42, Wholesale Trade, or Sector 44-45, Retail Trade
561422 Providing automated data processing services and computing infrastructure for call centers--are classified in Industry 518210, Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
561422 Providing restaurant meal and grocery order and delivery services (i.e., independent order and delivery services)--are classified in Industry 492210, Local Messengers and Local Delivery
561422 Organizing and conducting charitable fundraising campaigns on a contract or fee basis, that may include telephone solicitation services--are classified in U.S. Industry 561499, All Other Business Support Services
561422 Gathering, recording, tabulating, and presenting marketing and public opinion data, that may include telephone canvassing services--are classified in Industry 541910, Marketing Research and Public Opinion Polling.
56143 Operating contract post offices--are classified in Industry 49111, Postal Service
56143 Delivering letters and parcels (except under a universal service obligation)--are classified in Subsector 492, Couriers and Messengers