> 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/334418/ # NAICS code 334418: Printed Circuit Assembly (Electronic Assembly) Manufacturing The companies classified under NAICS 334418, 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 334418 is the code for Printed Circuit Assembly (Electronic Assembly) Manufacturing, in sector 31-33: Manufacturing. The companies counted under it are mostly small: 74% have 200 or fewer employees, and 80% are headquartered in the United States. ## What is NAICS 334418? NAICS 334418 is the code for Printed Circuit Assembly (Electronic Assembly) 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 3672, Manufacturing printed circuit boards, in the older SIC system (82%). NAICS is a North American system, so companies outside the US, Canada and Mexico are placed in it by classification. - 42% 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 (80%). Within the US, California is the biggest state (30%). - Most were founded in the 1990s (31%), then the 1980s (28%). **Figure: How NAICS 334418 is built.** The code 334418 split into its parts: sector 33, then subsector, industry group, NAICS industry and U.S. industry. *The six digits of NAICS 334418. Each digit narrows the category.* ## Which companies are classified under NAICS 334418? The biggest by headcount range include Jabil, Sanmina, Plexus, Amphenol and Orbotech. Names link to a company profile where we have one. | Company | Headquarters | Employees | | --- | --- | --- | | [Jabil](https://enrich.chat/company/jabil/) | St. Petersburg, FL | 10,001+ | | [Sanmina](https://enrich.chat/company/sanmina/) | San Jose, CA | 10,001+ | | [Plexus](https://enrich.chat/company/plexus/) | Neenah, WI | 10,001+ | | [Amphenol](https://enrich.chat/company/amphenol/) | Wallingford, CT | 10,001+ | | Syrma Sgs Technology | Chennai, India | 5,001 to 10,000 | | Cts | Lisle, IL | 1,001 to 5,000 | | Creation Technologies | Boston, MA | 1,001 to 5,000 | | Osi Electronics | Hawthorne, CA | 1,001 to 5,000 | | Neotech | Chatsworth, CA | 1,001 to 5,000 | | Keytronic | Spokane Valley, WA | 1,001 to 5,000 | | Summit Interconnect | Irvine, CA | 1,001 to 5,000 | | Ibiden Philippines | Sto. Tomas, Philippines | 1,001 to 5,000 | | Sparton | De Leon Springs, FL | 501 to 1,000 | | Coghlin Companies | Worcester, MA | 501 to 1,000 | | Sci Technology | Huntsville, AL | 501 to 1,000 | | Masterwork Electronics | Milpitas, CA | 501 to 1,000 | | Flexible Circuit Technologies | Minneapolis, MN | 501 to 1,000 | | Inter Industries Plus | Nof Hagalil, Israel | 501 to 1,000 | | Macrofab | Houston, TX | 201 to 500 | | Libra Industries | Mentor, OH | 201 to 500 | | Rocket Ems | Santa Clara, CA | 201 to 500 | | Cirtronics | Milford, NH | 201 to 500 | | Sonic Manufacturing Technologies | Fremont, CA | 201 to 500 | | Krypton Solutions | Plano, TX | 201 to 500 | | Minco Products | Minneapolis, MN | 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 334418 companies based? The largest groups are headquartered in the United States (80%), Italy (6%) and Germany (4%). **Figure: Where companies in NAICS 334418 are based.** Bars for the share of counted companies in NAICS 334418 headquartered in each country: United States 80%, Italy 6%, Germany 4%, United Kingdom 3%. *Share of counted companies in NAICS 334418 by headquarters country.* Within the United States, California (30%), Illinois (11%) and New York (9%) lead. **Figure: US headquarters of companies in NAICS 334418, by state.** A tile map of the United States shaded by the share of counted US companies in NAICS 334418 headquartered in each state. The largest are California 30%, Illinois 11%, New York 9%. *Share of counted US companies in NAICS 334418 by headquarters state. The three largest states are outlined.* ## How big are the companies counted for NAICS 334418? 42% 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 334418.** Seven columns for the share of counted companies in NAICS 334418 in each employee range: 11 to 50 42%, 51 to 200 32%, 201 to 500 12%, 501 to 1,000 5%, 1,001 to 5,000 5%, 5,001 to 10,000 1%, 10,001+ 3%. *Share of counted companies in NAICS 334418 in each employee range.* ## How old are NAICS 334418 companies? Most were founded in the 1990s (31%), then the 1980s (28%). **Figure: When companies in NAICS 334418 were founded.** Eight columns for the share of counted companies in NAICS 334418 founded in each era: Before 1960 4%, 1960s 4%, 1970s 6%, 1980s 28%, 1990s 31%, 2000s 17%, 2010s 10%, 2020s 0%. *Share of counted companies in NAICS 334418 by the era they were founded in, for the ones that list a founding year.* ## How NAICS 334418 compares - 42% of companies in NAICS 334418 have 50 or fewer employees, against 60% across all NAICS codes on this site. - 10% were founded in 2010 or later, against 30% across all NAICS codes on this site. - Illinois holds 11% of the US companies here, against 4% across all NAICS codes on this site. ## How do NAICS 334418 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 Appliances; Electrical; and Electronics Manufacturing (85%), Defense and Space Manufacturing (4%) and Manufacturing (4%). **Figure: How companies in NAICS 334418 describe themselves.** Bars for the share of counted companies in NAICS 334418 that give each industry on their public profile: Appliances; Electrical; and Electronics Manufacturing 85%, Defense and Space Manufacturing 4%, Manufacturing 4%. *Share of counted companies in NAICS 334418 by the industry they list on their public profile.* ## NAICS 334418 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 3672 | Manufacturing printed circuit boards | 82% | | SIC 8711 | Engineering services | 3% | ## 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 334418 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 334418 (Printed Circuit Assembly (Electronic Assembly) 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 334418, 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 334413: Semiconductor and Related Device](https://enrich.chat/naics/334413/) 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 339920: Sporting and Athletic Goods Manufacturing](https://enrich.chat/naics/339920/) ## Frequently asked questions ### What is NAICS code 334418? NAICS 334418 is the code for Printed Circuit Assembly (Electronic Assembly) Manufacturing, in sector 31-33: Manufacturing. ### What is the SIC code for NAICS 334418 (Printed Circuit Assembly (Electronic Assembly) Manufacturing)? 82% of the companies counted carry SIC 3672 (Manufacturing printed circuit boards), but the two systems do not map one to one. ### Which companies are classified under NAICS 334418? The biggest by headcount range include Jabil, Sanmina, Plexus, Amphenol and Orbotech. The page lists 25 with links to their profiles where we have them. ### Where are NAICS 334418 companies based? The largest groups are headquartered in the United States (80%), Italy (6%) and Germany (4%). ### How big are the companies in NAICS 334418? 42% 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 334418 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 3672. ## Try this prompt Find the people at NAICS 334418 companies ```text Use www.enrich.chat to find the operations, supply chain and procurement leaders at companies with NAICS code 334418, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [NAICS 334413](https://enrich.chat/naics/334413/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)