--- title: "Manufacturing Companies in California: 36,336 Listed (2026)" description: "Ken's database lists 36,336 manufacturing companies headquartered in California (Oct 17, 2026). See the size breakdown, the largest firms and the filter." path: /data/manufacturing-companies-in-california family: data updated: 2026-10-17 data_as_of: 2026-10-17 html: /data/manufacturing-companies-in-california sources: - "https://app.ken.so" - "/pricing" facts: company_count: "36,336" state: "California" industry_filter: "\"Manufacturing\"" largest_size_band: "1-10 employees (64%)" data_as_of: "Oct 17, 2026" source: "Ken Search, POST /v1/search/companies" --- # Manufacturing Companies in California Ken's database lists 36,336 manufacturing companies headquartered in California as of Oct 17, 2026. The largest group, 64%, has 1-10 employees. ## Ken Search Results ### Ken Search Query: Industry: "Manufacturing", excluding "Oil and Gas", "Telecommunications" and "Renewable Energy Power Generation"; HQ state: California; HQ country: United States; Employees on record: 1 or more | Field | Value | | --- | --- | | Companies | 36,336 | | 1-10 employees | 23,413 (64%) | | 11-50 employees | 10,636 (29%) | | 51-200 employees | 1,132 (3%) | Ken's database, Oct 17, 2026. Headquarters counts, refreshed weekly. Action: [Search these companies free in Ken](/waitlist) (cost: Free to search, 1 credit ($0.02) per valid email) ## How Many Manufacturing Companies Are in California? **In short:** 36,336 manufacturing companies in Ken's database have their headquarters in California (Oct 17, 2026). Ken's database lists 36,336 manufacturing companies with headquarters in California. The largest group, 64%, has 1-10 employees. A company with only a branch office in California is not counted. **Manufacturing Companies in California by employee range, Oct 17, 2026** | Employees | Companies | Share | | --- | --- | --- | | 1-10 | 23,413 | 64% | | 11-50 | 10,636 | 29% | | 51-200 | 1,132 | 3% | | 201-500 | 249 | 1% | | 501-1,000 | 57 | <1% | | 1,001-5,000 | 65 | <1% | | 5,001-10,000 | 4 | <1% | | 10,001+ | 20 | <1% | | Not listed | 760 | 2% | | Total | 36,336 | 100% | Employee range as listed on each company profile, for the companies in the count. Not listed means the profile shows no size. ## Largest Manufacturing Companies in California **In short:** By employee count in Ken's database, the largest is Apple in Cupertino with 10,001+ employees. **Largest manufacturing companies headquartered in California by employee count, Oct 17, 2026** | Company | City | Employees | | --- | --- | --- | | Apple | Cupertino | 10,001+ | | Intel | Santa Clara | 10,001+ | | AMD | Santa Clara | 10,001+ | | Qualcomm | San Diego | 10,001+ | | Broadcom | Palo Alto | 10,001+ | | NVIDIA | Santa Clara | 10,001+ | | Applied Materials | Santa Clara | 10,001+ | | Sanmina | San Jose | 10,001+ | | WD | San Jose | 10,001+ | | Arbonne International LLC | Irvine | 10,001+ | Company-level data from Ken's database, ranked by employee count. This table reads each company's state from its address, so it can include large companies the count above misses because their record stores the state with a ZIP code. Public bodies, schools, job boards and companies with 50 employees or fewer are left out. ## How We Counted **In short:** We counted manufacturing companies in Ken's database with headquarters in California on Oct 17, 2026. - Filter: Companies in Manufacturing and its sub-industries, excluding oil and gas, telecommunications and power generation, with headquarters in California, United States, and at least one employee on record. - Headquarters only. Companies with just an office in California are not counted. - These are companies in Ken's database (250M people and 24M companies), not every company that exists. - Some records store the state with a ZIP code, and the state filter misses those, so read the count as a floor. The largest-companies table reads the state from each record's address, so it includes them. - Counts as of Oct 17, 2026. We check them weekly, and the dates move only when a count or a listed company changes. - Pages publish only at 50 companies or more. Ken is our product, and these counts come from its company database. The request body for POST /v1/search/companies ```json {"industries":["Manufacturing"],"excludeIndustries":["Oil and Gas","Telecommunications","Renewable Energy Power Generation"],"countries":["US"],"states":["California"],"employeesCount":{"min":1},"pageSize":0} ``` ## FAQ ### How many manufacturing companies are in California? Ken's database lists 36,336 manufacturing companies headquartered in California as of Oct 17, 2026. ### Which manufacturing companies in California have the most employees? In Ken's database, Apple, Intel and AMD have the most employees of the manufacturing companies headquartered in California. ### Can I get a list of manufacturing companies in California? Yes. Run the filter on this page in Ken Search. Searching is free, and a valid email costs 1 credit ($0.02). ### How often is this count updated? We check it weekly. The dates on this page move only when a count or a listed company changes, so an older date means nothing moved since. ### Why does this count differ from other sources? Sources count differently: headquarters or any office, industry labels or government codes, and how many companies they track. This page counts headquarters in Ken's database with the filter shown above. ## Do this in Ken ### Search these companies in Ken Open Ken Search with the same filter to see all 36,336 companies, narrow them by size or city, and find a valid email for the people you want to reach. 1. Set these filters: Industry: "Manufacturing", excluding "Oil and Gas", "Telecommunications" and "Renewable Energy Power Generation"; HQ state: California; HQ country: United States; Employees on record: 1 or more. 2. Narrow by employee range or city. 3. Find valid emails and add the companies to a campaign. - Link: [Search these companies in Ken](/waitlist) - API: `POST /v1/search/companies` - MCP tool: `search_search_companies` - Cost: Free to search, 1 credit ($0.02) per valid email ## Related - [B2B company counts by industry and state](/data) - [Find Precision Manufacturing Decision-Makers](/use-cases/precision-manufacturing) - [Manufacturing Companies in Tennessee](/data/manufacturing-companies-in-tennessee) - [Manufacturing Companies in Texas](/data/manufacturing-companies-in-texas) - [Manufacturing Companies in Florida](/data/manufacturing-companies-in-florida) - [Manufacturing Companies in Louisiana](/data/manufacturing-companies-in-louisiana) - [Manufacturing Companies in Michigan](/data/manufacturing-companies-in-michigan) - [Construction Companies in California](/data/construction-companies-in-california) - [Trucking Companies in California](/data/trucking-companies-in-california) - [Oil and Gas Companies in California](/data/oil-and-gas-companies-in-california) - [Pharmaceutical Companies in California](/data/pharmaceutical-companies-in-california) ## Sources | Source | URL | Checked | | --- | --- | --- | | Ken's company database, queried through Ken Search (POST /v1/search/companies) | https://app.ken.so | 2026-10-17 | | Ken pricing (credit cost per valid email) | /pricing | 2026-10-17 | ## Changelog - 2026-10-17: Page published with counts from Ken's database.