> 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/334210/ # NAICS code 334210: Telephone Apparatus Manufacturing The companies classified under NAICS 334210, where they are based, how big they are and how the code maps to SIC. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** NAICS 334210 is the code for Telephone Apparatus Manufacturing, in sector 31-33: Manufacturing. The companies counted under it are mostly small: 71% have 200 or fewer employees, and 53% are headquartered in the United States. ## What is NAICS 334210? NAICS 334210 is the code for Telephone Apparatus Manufacturing. It belongs to sector 31-33: Manufacturing. NAICS, the North American Industry Classification System, is the standard U.S. government agencies use to sort businesses by what they mainly do, and each digit narrows the category. Most of the companies counted also carry SIC 3661, Manufacturing telephone and telegraph apparatus, in the older SIC system (70%). NAICS is a North American system, so companies outside the US, Canada and Mexico are placed in it by classification. - 31% of the companies counted have 50 or fewer employees, and the middle one is in the 51 to 200 range. - The largest group is headquartered in the United States (53%). Within the US, California is the biggest state (13%). - Most were founded in the 1990s (29%), then the 2000s (28%). **Figure: How NAICS 334210 is built.** The code 334210 split into its parts: sector 33, then subsector, industry group, NAICS industry and U.S. industry. *The six digits of NAICS 334210. Each digit narrows the category.* ## Which companies are classified under NAICS 334210? The biggest by headcount range include Motorola Solutions, Bharat Fih, Ciena, Lava International and Zayo Group. Names link to a company profile where we have one. | Company | Headquarters | Employees | | --- | --- | --- | | [Motorola Solutions](https://enrich.chat/company/motorola-solutions/) | Chicago, IL | 10,001+ | | Bharat Fih | Kancheepuram, India | 10,001+ | | Ciena | Hanover, MD | 5,001 to 10,000 | | Lava International | Noida, India | 1,001 to 5,000 | | Zayo Group | Denver, CO | 1,001 to 5,000 | | Ipc Systems | Jersey City, NJ | 1,001 to 5,000 | | Alvaria | Altanta, GA | 1,001 to 5,000 | | 63 Moons Technologies | Mumbai, India | 1,001 to 5,000 | | Dzs | Plano, TX | 501 to 1,000 | | [Pitney Bowes](https://enrich.chat/company/pitney-bowes/) | San Diego, CA | 501 to 1,000 | | Ultratec | Madison, WI | 501 to 1,000 | | Hwacom Systems | New Taipei City, Taiwan | 501 to 1,000 | | Matrix Comsec | Vadodara, India | 201 to 500 | | Sonim Technologies | Hollywood, FL | 201 to 500 | | Clearfield | Minneapolis, MN | 201 to 500 | | Gigaset | Bocholt, Germany | 201 to 500 | | Fiber Instrument Sales | Oriskany, NY | 201 to 500 | | Premier Code | Lahore, Pakistan | 201 to 500 | | Draytek | Hsinchu, Taiwan | 201 to 500 | | Insta | Ludenscheid, Germany | 201 to 500 | | Compunetix | Monroeville, PA | 201 to 500 | | Legrand | Soest, Germany | 201 to 500 | | Coral Telecom | Noida, India | 201 to 500 | | Deister Electronic Uk | Spalding, United Kingdom | 201 to 500 | | We.Dify | Vienna, Austria | 201 to 500 | 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. ## Where are NAICS 334210 companies based? The largest groups are headquartered in the United States (53%), the United Kingdom (12%) and Germany (10%). **Figure: Where companies in NAICS 334210 are based.** Bars for the share of counted companies in NAICS 334210 headquartered in each country: United States 53%, United Kingdom 12%, Germany 10%, India 9%, Israel 3%, Taiwan 3%. *Share of counted companies in NAICS 334210 by headquarters country.* Within the United States, California (13%), Florida (11%) and Illinois (9%) lead. **Figure: US headquarters of companies in NAICS 334210, by state.** A tile map of the United States shaded by the share of counted US companies in NAICS 334210 headquartered in each state. The largest are California 13%, Florida 11%, Illinois 9%. *Share of counted US companies in NAICS 334210 by headquarters state. The three largest states are outlined.* ## How big are the companies counted for NAICS 334210? 31% of them have 50 or fewer employees, and the middle one is in the 51 to 200 range. Companies with fewer than 11 employees are not counted. **Figure: Size of companies in NAICS 334210.** Seven columns for the share of counted companies in NAICS 334210 in each employee range: 11 to 50 31%, 51 to 200 39%, 201 to 500 17%, 501 to 1,000 4%, 1,001 to 5,000 5%, 5,001 to 10,000 1%, 10,001+ 2%. *Share of counted companies in NAICS 334210 in each employee range.* ## How old are NAICS 334210 companies? Most were founded in the 1990s (29%), then the 2000s (28%). **Figure: When companies in NAICS 334210 were founded.** Eight columns for the share of counted companies in NAICS 334210 founded in each era: Before 1960 5%, 1960s 3%, 1970s 12%, 1980s 10%, 1990s 29%, 2000s 28%, 2010s 13%, 2020s 0%. *Share of counted companies in NAICS 334210 by the era they were founded in, for the ones that list a founding year.* ## How NAICS 334210 compares - 31% of companies in NAICS 334210 have 50 or fewer employees, against 60% across all NAICS codes on this site. - 13% were founded in 2010 or later, against 30% across all NAICS codes on this site. - Minnesota holds 7% of the US companies here, against 2% across all NAICS codes on this site. ## How do NAICS 334210 companies describe themselves? A code is assigned by classification, and a company does not choose its own, so the label a company uses for itself can differ. The most common labels here are Telecommunications (56%), Appliances; Electrical; and Electronics Manufacturing (18%) and Computers and Electronics Manufacturing (6%). **Figure: How companies in NAICS 334210 describe themselves.** Bars for the share of counted companies in NAICS 334210 that give each industry on their public profile: Telecommunications 56%, Appliances; Electrical; and Electronics Manufacturing 18%, Computers and Electronics Manufacturing 6%, Security and Investigations 6%, Information Technology and Services 5%, Software Development 5%. *Share of counted companies in NAICS 334210 by the industry they list on their public profile.* ## NAICS 334210 and the SIC system NAICS replaced SIC in 1997, but the two do not line up one to one: companies filed under one NAICS code can carry several SIC codes. These are the ones seen most. | Code | Title | Share of counted | | --- | --- | --- | | SIC 3661 | Manufacturing telephone and telegraph apparatus | 70% | | SIC 3663 | Manufacturing radio and tv communication equipment | 4% | | [SIC 3651](https://enrich.chat/sic/3651/) | Manufacturing home audio and video equipment | 2% | | SIC 3669 | Manufacturing communications equipment | 2% | | SIC 3678 | Manufacturing electronic connectors | 2% | | SIC 3679 | Manufacturing electronic components | 2% | ## Where NAICS codes come from NAICS is maintained by the U.S. Census Bureau with Canada and Mexico and revised every five years; the current edition is NAICS 2022. To check exactly what a code includes, search the [official NAICS index](https://www.census.gov/naics/) or read the Census Bureau's [guide to understanding NAICS](https://www.census.gov/programs-surveys/economic-census/year/2022/guidance/understanding-naics.html). Pick a code by what a company mostly does, not by who it sells to. ## How do you reach the people at NAICS 334210 companies? The people to talk to are usually operations, supply chain and procurement leaders. You can build the list from this code 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 334210 (Telephone Apparatus Manufacturing) ``` ### 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 operations, supply chain and procurement leaders at companies with NAICS code 334210, 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 Codes next to it: [NAICS 334220: Radio and Television Broadcasting](https://enrich.chat/naics/334220/) Others in sector 31-33: [NAICS 325412: Pharmaceutical Preparation Manufacturing](https://enrich.chat/naics/325412/)[NAICS 326199: All Other Plastics Product Manufacturing](https://enrich.chat/naics/326199/)[NAICS 339112: Surgical and Medical Instrument](https://enrich.chat/naics/339112/)[NAICS 336390: Other Motor Vehicle Parts Manufacturing](https://enrich.chat/naics/336390/)[NAICS 332710: Machine Shops](https://enrich.chat/naics/332710/)[NAICS 312130: Wineries](https://enrich.chat/naics/312130/)[NAICS 333111: Farm Machinery and Equipment Manufacturing](https://enrich.chat/naics/333111/)[NAICS 334413: Semiconductor and Related Device](https://enrich.chat/naics/334413/) ## Frequently asked questions ### What is NAICS code 334210? NAICS 334210 is the code for Telephone Apparatus Manufacturing, in sector 31-33: Manufacturing. ### What is the SIC code for NAICS 334210 (Telephone Apparatus Manufacturing)? 70% of the companies counted carry SIC 3661 (Manufacturing telephone and telegraph apparatus), but the two systems do not map one to one. ### Which companies are classified under NAICS 334210? The biggest by headcount range include Motorola Solutions, Bharat Fih, Ciena, Lava International and Zayo Group. The page lists 25 with links to their profiles where we have them. ### Where are NAICS 334210 companies based? The largest groups are headquartered in the United States (53%), the United Kingdom (12%) and Germany (10%). ### How big are the companies in NAICS 334210? 31% have 50 or fewer employees, and the middle one is in the 51 to 200 range. Companies with fewer than 11 employees are not counted. ### Is NAICS 334210 the same as a SIC code? No. NAICS replaced SIC as the U.S. federal standard in 1997, and the two do not map one to one. The SIC code seen most among these companies is 3661. ## Try this prompt Find the people at NAICS 334210 companies ```text Use www.enrich.chat to find the operations, supply chain and procurement leaders at companies with NAICS code 334210, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [NAICS 334220](https://enrich.chat/naics/334220/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)