> 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/238210/california/ # NAICS 238210 companies in California Companies with NAICS code 238210 (Electrical Contractors and Other Wiring Installation Contractors) headquartered in California, with their cities, sizes and SIC codes. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** The biggest NAICS 238210 companies in California by headcount range include Helix Electric, Csi Electrical Contractors and Morrow-Meadows. NAICS 238210 is the code for Electrical Contractors and Other Wiring Installation Contractors. Among those counted, they are mostly very small: 65% have 50 or fewer employees. ## Which NAICS 238210 companies are in California? The biggest by headcount range include Helix Electric, Csi Electrical Contractors, Morrow-Meadows, Redwood Electric Group and Sasco. NAICS 238210 is the code for Electrical Contractors and Other Wiring Installation Contractors. Names link to a company profile where we have one. | Company | City | Employees | | --- | --- | --- | | Helix Electric | San Diego | 1,001 to 5,000 | | Csi Electrical Contractors | Santa Fe Springs | 1,001 to 5,000 | | Morrow-Meadows | City Of Industry | 1,001 to 5,000 | | Redwood Electric Group | Santa Clara | 1,001 to 5,000 | | Sasco | Fullerton | 501 to 1,000 | | Collins Electrical | Stockton | 501 to 1,000 | | Briggs Electric | Tustin | 501 to 1,000 | | A-C Electric | Bakersfield | 201 to 500 | | Neal Electric | Carlsbad | 201 to 500 | | Mcmillan Electric | San Francisco | 201 to 500 | | Trl Systems | Rancho Cucamonga | 201 to 500 | | Redrock Technologies | Irvine | 201 to 500 | | Contra Costa Electric | Martinez | 201 to 500 | | Hmt Electric | Escondido | 201 to 500 | | St Francis Electric | San Leandro | 201 to 500 | | Skyler Electric | Grass Valley | 201 to 500 | | Tri-Signal Integration | Sylmar | 201 to 500 | | Select Electric | Vista | 51 to 200 | | Capitol Valley Electric | Sacramento | 51 to 200 | | Southwest Industrial Electric | Los Angeles | 51 to 200 | | Champion Electric | Riverside | 51 to 200 | | Laser Electric | Escondido | 51 to 200 | | Schetter Electric | Sacramento | 51 to 200 | | Summit Technology Group | Santa Rosa | 51 to 200 | | Rodda Electric | Brentwood | 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, San Francisco (5%), Los Angeles (4%) and Sacramento (4%) are the most common headquarters. **Figure: Cities of NAICS 238210 companies in California.** Bars for the share of counted NAICS 238210 companies in California headquartered in each city: San Francisco 5%, Los Angeles 4%, Sacramento 4%, Bakersfield 3%, San Jose 3%, Anaheim 2%, Chino 2%, Fremont 2%. *Share of counted NAICS 238210 companies in California by headquarters city.* ## How big are they? 65% of the NAICS 238210 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 238210 companies in California.** Seven columns for the share of counted NAICS 238210 companies in California in each employee range: 11 to 50 65%, 51 to 200 24%, 201 to 500 7%, 501 to 1,000 2%, 1,001 to 5,000 3%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted NAICS 238210 companies in California in each employee range.* ## How old are they? Most were founded in the 2000s (28%), then the 1990s (20%). **Figure: When NAICS 238210 companies in California were founded.** Eight columns for the share of counted NAICS 238210 companies in California founded in each era: Before 1960 5%, 1960s 13%, 1970s 9%, 1980s 16%, 1990s 20%, 2000s 28%, 2010s 10%, 2020s 0%. *Share of counted NAICS 238210 companies in California by the era they were founded in, for the ones that list a founding year.* ## How California compares with the rest of the country - 10% were founded in 2010 or later, against 20% across NAICS 238210 companies nationwide. ## How do you reach the people at these California companies? The people to talk to are usually owners, operations 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 companies with NAICS code 238210 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 owners, operations and procurement leaders at companies with NAICS code 238210 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 238210: Electrical Contractors and Other Wiring Installation Contractors](https://enrich.chat/naics/238210/). About the place: [companies in California](https://enrich.chat/companies-in/california/). NAICS 238210 in other states: [Texas](https://enrich.chat/naics/238210/texas/)[Florida](https://enrich.chat/naics/238210/florida/)[Colorado](https://enrich.chat/naics/238210/colorado/) 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 238210 companies are in California? The biggest by headcount range include Helix Electric, Csi Electrical Contractors, Morrow-Meadows, Redwood Electric Group and Sasco. The page lists 25 with links to their profiles where we have them. ### What is NAICS 238210? NAICS 238210 is the code for Electrical Contractors and Other Wiring Installation Contractors, in sector 23: Construction. ### Which cities in California have the most? San Francisco (5%), Los Angeles (4%) and Sacramento (4%) lead among the companies counted. ## Try this prompt Find the people at NAICS 238210 companies in California ```text Use www.enrich.chat to find the owners, operations and procurement leaders at companies with NAICS code 238210 in California, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [NAICS 238210 in Texas](https://enrich.chat/naics/238210/texas/) - [NAICS 238210 in Florida](https://enrich.chat/naics/238210/florida/) - [NAICS 238210 in Colorado](https://enrich.chat/naics/238210/colorado/) - [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/)