> Enrich.chat gives AI agents verified work emails and mobiles. To use it from an agent, read https://enrich.chat/agents.md . This is the Markdown version of https://enrich.chat/naics/517810/california/ # NAICS 517810 companies in California Companies with NAICS code 517810 (All Other Telecommunications) headquartered in California, with their cities, sizes and SIC codes. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** The biggest NAICS 517810 companies in California by headcount range include Centerfield, Taoglas and Mint Mobile. NAICS 517810 is the code for All Other Telecommunications. Among those counted, they are mostly very small: 78% have 50 or fewer employees. ## Which NAICS 517810 companies are in California? The biggest by headcount range include Centerfield, Taoglas, Mint Mobile, Tvu Networks and Teliolabs Communications. NAICS 517810 is the code for All Other Telecommunications. Names link to a company profile where we have one. | Company | City | Employees | | --- | --- | --- | | Centerfield | Los Angeles | 1,001 to 5,000 | | Taoglas | San Diego | 201 to 500 | | Mint Mobile | Costa Mesa | 201 to 500 | | Tvu Networks | Cupertino | 201 to 500 | | Teliolabs Communications | South San Francisco | 201 to 500 | | Beyond Codes | Simi Valley | 201 to 500 | | Truconnect | Los Angeles | 201 to 500 | | Ozonetel Communications | San Jose | 201 to 500 | | Pacific Communications | Irvine | 201 to 500 | | Crooked Media | Los Angeles | 51 to 200 | | Socialive | El Segundo | 51 to 200 | | Autumn Communications | Los Angeles | 51 to 200 | | Activision Blizzard Media | San Francisco | 51 to 200 | | Lemonlight | Inglewood | 51 to 200 | | Sightcall | San Francisco | 51 to 200 | | Hive Media Group | Carlsbad | 51 to 200 | | Alchemy Media | Los Angeles | 51 to 200 | | Ips Group | San Diego | 51 to 200 | | Gen Mobile | El Segundo | 51 to 200 | | Cygnis Media | Pleasanton | 51 to 200 | | Spectrum Media Group | Spring | 51 to 200 | | Colocation America | Los Angeles | 51 to 200 | | Deltapath | Santa Clara | 51 to 200 | | Sky Link Tv | Rosemead | 51 to 200 | | Jump Forward Media | San Diego | 51 to 200 | The table shows the 25 biggest by headcount range, with ties broken by audience size. The charts and percentages below cover every company counted for this page, not just these 25, and companies with fewer than 11 employees are not counted. Headquarters is the location on each company's public profile. ## Which cities in California? Within California, Los Angeles (22%), San Francisco (11%) and San Diego (7%) are the most common headquarters. **Figure: Cities of NAICS 517810 companies in California.** Bars for the share of counted NAICS 517810 companies in California headquartered in each city: Los Angeles 22%, San Francisco 11%, San Diego 7%, Irvine 4%, El Segundo 3%, Beverly Hills 2%, Sacramento 2%, San Jose 2%. *Share of counted NAICS 517810 companies in California by headquarters city.* ## How big are they? 78% of the NAICS 517810 companies counted in California have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. **Figure: Size of NAICS 517810 companies in California.** Seven columns for the share of counted NAICS 517810 companies in California in each employee range: 11 to 50 78%, 51 to 200 16%, 201 to 500 6%, 501 to 1,000 0%, 1,001 to 5,000 1%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted NAICS 517810 companies in California in each employee range.* ## How old are they? Most were founded in the 2010s (49%), then the 2000s (33%). **Figure: When NAICS 517810 companies in California were founded.** Eight columns for the share of counted NAICS 517810 companies in California founded in each era: Before 1960 0%, 1960s 1%, 1970s 0%, 1980s 2%, 1990s 9%, 2000s 33%, 2010s 49%, 2020s 6%. *Share of counted NAICS 517810 companies in California by the era they were founded in, for the ones that list a founding year.* ## How do you reach the people at these California companies? The people to talk to are usually product, engineering and revenue leaders. Build the list in three prompts to your AI agent. ### 1. Count them (free) Counting who matches never uses credits. ```text Use www.enrich.chat to count the companies with NAICS code 517810 in California ``` ### 2. Find the people (5 credits per person) Name the roles you sell to. Each person returned is 5 credits, and name, title and company are included. ```text Use www.enrich.chat to find the product, engineering and revenue leaders at companies with NAICS code 517810 in California, with their titles ``` ### 3. Get their work emails (10 credits each) An email is 10 credits only when one is found. Every email comes with a status: verified, catch-all or unknown. ```text Use www.enrich.chat to find the work emails for these people and tell me which ones are verified ``` ## More to explore About the code: [NAICS 517810: All Other Telecommunications](https://enrich.chat/naics/517810/). About the place: [companies in California](https://enrich.chat/companies-in/california/). NAICS 517810 in other states: [Florida](https://enrich.chat/naics/517810/florida/)[Texas](https://enrich.chat/naics/517810/texas/) Other NAICS codes in California: [NAICS 541511: Custom Computer Programming Services](https://enrich.chat/naics/541511/california/)[NAICS 541512: Computer Systems Design Services](https://enrich.chat/naics/541512/california/)[NAICS 722511: Full-Service Restaurants](https://enrich.chat/naics/722511/california/)[NAICS 541613: Marketing Consulting Services](https://enrich.chat/naics/541613/california/)[NAICS 238220: Plumbing, Heating, and Air-Conditioning](https://enrich.chat/naics/238220/california/)[NAICS 513210: Software Publishers](https://enrich.chat/naics/513210/california/)[NAICS 531210: Offices of Real Estate Agents](https://enrich.chat/naics/531210/california/)[NAICS 524210: Insurance Agencies and Brokerages](https://enrich.chat/naics/524210/california/)[NAICS 236220: Commercial and Institutional Building](https://enrich.chat/naics/236220/california/)[NAICS 621111: Offices of Physicians](https://enrich.chat/naics/621111/california/) ## Frequently asked questions ### Which NAICS 517810 companies are in California? The biggest by headcount range include Centerfield, Taoglas, Mint Mobile, Tvu Networks and Teliolabs Communications. The page lists 25 with links to their profiles where we have them. ### What is NAICS 517810? NAICS 517810 is the code for All Other Telecommunications, in sector 51: Information. ### Which cities in California have the most? Los Angeles (22%), San Francisco (11%) and San Diego (7%) lead among the companies counted. ## Try this prompt Find the people at NAICS 517810 companies in California ```text Use www.enrich.chat to find the product, engineering and revenue leaders at companies with NAICS code 517810 in California, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [NAICS 517810 in Florida](https://enrich.chat/naics/517810/florida/) - [NAICS 517810 in Texas](https://enrich.chat/naics/517810/texas/) - [NAICS 541511 in California](https://enrich.chat/naics/541511/california/) - [NAICS 541512 in California](https://enrich.chat/naics/541512/california/) - [NAICS 722511 in California](https://enrich.chat/naics/722511/california/) - [NAICS 541613 in California](https://enrich.chat/naics/541613/california/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)