> 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/companies-in/san-jose-ca/telecommunications/ # Telecommunications Companies in San Jose, CA The bigger telecommunications companies headquartered in San Jose, CA, with what they do, their sizes and how to reach their people. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** Among the telecommunications companies counted in San Jose, CA, the biggest by headcount range include Webex, Infinera and Polycom. They are mostly very small: 52% have 50 or fewer employees. ## Which telecommunications companies are in San Jose? Among the companies whose public profile lists Telecommunications as their industry and San Jose, CA as their headquarters, the biggest by headcount range include Webex, Infinera, Polycom, Harmonic and Litepoint. Names link to a company profile where we have one. | Company | Employees | | --- | --- | | Webex | 10,001+ | | Infinera | 1,001 to 5,000 | | Polycom | 1,001 to 5,000 | | Harmonic | 1,001 to 5,000 | | Litepoint | 1,001 to 5,000 | | Utstarcom | 1,001 to 5,000 | | Aio Systems | 201 to 500 | | Astraqom | 201 to 500 | | Deviser Instruments | 201 to 500 | | B-Yond | 51 to 200 | | Dten | 51 to 200 | | Nybsys | 51 to 200 | | Minerva Networks | 51 to 200 | | Panterra Networks | 51 to 200 | | Activevideo | 51 to 200 | | Virtualpbx | 51 to 200 | | Golden State Communications | 51 to 200 | | Premier Wireless Solutions | 51 to 200 | | Beowulf Blockchain | 51 to 200 | | Lectronic | 51 to 200 | | Genuine Optics | 51 to 200 | | Nth Connect Telecom | 51 to 200 | | Raditek | 51 to 200 | | Evissap | 51 to 200 | | Comsift | 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. ## What do telecommunications companies in San Jose do? Telecommunications is a broad label. The most common NAICS codes among them are 541511 (20%), 423690 (13%) and 541330 (13%). **Figure: What telecommunications companies in San Jose do.** Bars for the share of counted telecommunications companies with each code: 541511 20%, 423690 13%, 541330 13%, 332312 7%, 334220 7%, 334290 7%, 334513 7%. *Share of counted telecommunications companies in San Jose by their NAICS code.* [NAICS 541511](https://enrich.chat/naics/541511/)[NAICS 334220](https://enrich.chat/naics/334220/) ## How big are they? 52% of the telecommunications companies counted in San Jose 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 telecommunications companies in San Jose.** Seven columns for the share of counted telecommunications companies in San Jose in each employee range: 11 to 50 52%, 51 to 200 31%, 201 to 500 6%, 501 to 1,000 0%, 1,001 to 5,000 9%, 5,001 to 10,000 0%, 10,001+ 2%. *Share of counted telecommunications companies in San Jose in each employee range.* ## How telecommunications companies compare - 52% of telecommunications companies in San Jose have 50 or fewer employees, against 71% across other cities on this site. ## How do you reach the people at telecommunications companies in San Jose? The people to talk to are usually network, IT and procurement 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 telecommunications companies in San Jose, CA ``` ### 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 network, IT and procurement leaders at telecommunications companies in San Jose, CA, 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 Other industries in San Jose: [Software Companies](https://enrich.chat/companies-in/san-jose-ca/software-development/)[Construction Companies](https://enrich.chat/companies-in/san-jose-ca/construction/)[IT Services Companies](https://enrich.chat/companies-in/san-jose-ca/it-services-and-it-consulting/)[Technology and Internet Companies](https://enrich.chat/companies-in/san-jose-ca/technology-information-and-internet/)[Real Estate Companies](https://enrich.chat/companies-in/san-jose-ca/real-estate/)[Advertising Agencies](https://enrich.chat/companies-in/san-jose-ca/advertising-services/)[Semiconductor Companies](https://enrich.chat/companies-in/san-jose-ca/semiconductor-manufacturing/)[Electrical and Electronics Manufacturers](https://enrich.chat/companies-in/san-jose-ca/appliances-electrical-and-electronics-manufacturing/)[Financial Services Companies](https://enrich.chat/companies-in/san-jose-ca/financial-services/)[Nonprofit Organizations](https://enrich.chat/companies-in/san-jose-ca/non-profit-organizations/)[Hospitals and Health Care Organizations](https://enrich.chat/companies-in/san-jose-ca/hospitals-and-health-care/)[Facilities Services Companies](https://enrich.chat/companies-in/san-jose-ca/facilities-services/)[Staffing and Recruiting Firms](https://enrich.chat/companies-in/san-jose-ca/staffing-and-recruiting/)[Consulting Firms](https://enrich.chat/companies-in/san-jose-ca/business-consulting-and-services/)[Medical Device Companies](https://enrich.chat/companies-in/san-jose-ca/medical-equipment-manufacturing/)[Cybersecurity Companies](https://enrich.chat/companies-in/san-jose-ca/computer-and-network-security/)[All of San Jose](https://enrich.chat/companies-in/san-jose-ca/) Telecommunications Companies in other cities: [Miami, FL](https://enrich.chat/companies-in/miami-fl/telecommunications/)[Austin, TX](https://enrich.chat/companies-in/austin-tx/telecommunications/)[Dallas, TX](https://enrich.chat/companies-in/dallas-tx/telecommunications/)[Atlanta, GA](https://enrich.chat/companies-in/atlanta-ga/telecommunications/)[San Diego, CA](https://enrich.chat/companies-in/san-diego-ca/telecommunications/)[Las Vegas, NV](https://enrich.chat/companies-in/las-vegas-nv/telecommunications/)[Tampa, FL](https://enrich.chat/companies-in/tampa-fl/telecommunications/)[Denver, CO](https://enrich.chat/companies-in/denver-co/telecommunications/)[Plano, TX](https://enrich.chat/companies-in/plano-tx/telecommunications/)[Irvine, CA](https://enrich.chat/companies-in/irvine-ca/telecommunications/) ## Frequently asked questions ### Which are the biggest telecommunications companies in San Jose? Among those counted, they include Webex, Infinera, Polycom, Harmonic and Litepoint, ranked by headcount range. ### How big are telecommunications companies in San Jose? 52% of those counted 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. ### Which companies count as telecommunications? Companies whose public profile lists Telecommunications as their industry and whose headquarters are in San Jose, CA. ## Try this prompt Find the people at telecommunications companies in San Jose ```text Use www.enrich.chat to find the network, IT and procurement leaders at telecommunications companies in San Jose, CA, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Software Companies in San Jose](https://enrich.chat/companies-in/san-jose-ca/software-development/) - [Construction Companies in San Jose](https://enrich.chat/companies-in/san-jose-ca/construction/) - [IT Services Companies in San Jose](https://enrich.chat/companies-in/san-jose-ca/it-services-and-it-consulting/) - [Technology and Internet Companies in San Jose](https://enrich.chat/companies-in/san-jose-ca/technology-information-and-internet/) - [Telecommunications Companies in Miami](https://enrich.chat/companies-in/miami-fl/telecommunications/) - [Telecommunications Companies in Austin](https://enrich.chat/companies-in/austin-tx/telecommunications/) - [Telecommunications Companies in Dallas](https://enrich.chat/companies-in/dallas-tx/telecommunications/) - [Telecommunications Companies in Atlanta](https://enrich.chat/companies-in/atlanta-ga/telecommunications/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)