NAICS 517810:
All Other Telecommunications
This industry comprises establishments primarily engaged in providing specialized telecommunications services, such as satellite tracking, communications telemetry, and radar station operation. This industry also includes establishments primarily engaged in providing satellite terminal stations and associated facilities connected with one or more terrestrial systems and capable of transmitting telecommunications to, and receiving telecommunications from, satellite systems. Establishments providing Internet services or Voice over Internet protocol (VoIP) services via client-supplied telecommunications connections are also included in this industry. Establishments in this industry do not operate as telecommunications carriers.
Dial-up Internet service providersInternet service providers, using client-supplied telecommunications connections (e.g., dial-up ISPs)Satellite tracking stations+1 example
Matching SIC code: 7375 Information Retrieval Services (also 4899 Communications Services, Not Elsewhere Classified)
Where it sits
- 51InformationSector
- 517TelecommunicationsSubsector
- 5178All Other TelecommunicationsIndustry group
- 51781All Other TelecommunicationsNAICS industry
- 517810All Other TelecommunicationsNational industry
Largest companies with NAICS 517810
Updated Nov 9, 2026| Rank | Company | Headquarters | Employees |
|---|---|---|---|
| 1 |  RingCentralringcentral.com | Belmont, US | 6.5K |
| 2 |  West Corporationwest.com | Omaha, US | 6K |
| 3 |  Crown Castlecrowncastle.com | Houston, US | 3.8K |
| 4 |  Sorenson Communicationssorenson.com | Salt Lake City, US | 3.2K |
| 5 |  8x88x8.com | Campbell, US | 2.8K |
| 6 |  SBA Communicationssbasite.com | Boca Raton, US | 2.2K |
| 7 |  Syniversesyniverse.com | Tampa, US | 2.1K |
| 8 |  IPC Systemsipc.com | New York, US | 1.4K |
| 9 |  Intermedia Intelligent Communicationsintermedia.com | Sunnyvale, US | 1.4K |
| 10 |  CaptionCall by Sorensoncaptioncall.com | Salt Lake City, US | 1.4K |
Not this code?
Similar activities the Census classifies elsewhere.
- 54151Computer Systems Design and Related ServicesProviding expert advice in the field of information technology or in integrating communication and computer systems
Questions about NAICS 517810
Which businesses use NAICS 517810?
What SIC code matches NAICS 517810?
How many companies have NAICS 517810?
Code titles, definitions, examples and SIC matches: NAICS 2022 and the Census concordances, US Census Bureau. Company counts and lists: Crustdata, companies with a website, each by its primary code, updated weekly. Employee counts are estimates.