NAICS Code Description

561421 - Telephone Answering Services

*Click to View Top Businesses by Revenue for 561421 – Complete Profiles*.

This U.S. industry comprises establishments primarily engaged in answering telephone calls and relaying messages to clients.


  • Establishments primarily engaged in providing paging or beeper transmission services are classified in U.S. Industry 517312, Wireless Telecommunications Carriers (except Satellite).
Index Entries for 561421
561421561421561421Answering services, telephone
561421561421561421Emergency telephone dispatch (i.e., contractor) services
561421561421561421Local call centers
561421561421561421Message services, telephone answering
561421561421561421Telephone answering services
561421561421561421Telephone call forwarding services
561421561421561421Voice mailbox services
561421561421561421Wakeup call services

Top Businesses by Annual Sales for 561421 – Click for Complete Profiles:

Mount Olympus Holdings IncNew YorkNY
Avaya IncSanta ClaraCA
Sitel Worldwide CorporationMiamiFL
Sitel LLCNashvilleTN
Computer Gnrated Solutions IncNew YorkNY
Carousel Industries N Amer IncExeterRI
Concentrix Services Us IncFarmington HillsMI
Advanced Call Center Tech LLCBerwynPA
Opinionology LLCOremUT
National Exch Carier Assn IncMorristownNJ