General business services
1,209 companies
SIC 7389
Companies in Hayward
Behind every street in Hayward sits a business. 27,200 of them, to be exact, all registered in the United States business register. The biggest single industry is general business services with 1,209 companies, roughly 4% of everything that does business in the city.
27,200 businesses indexed
Ultra Clean Holdings, INC.Ultra Clean Holdings, INC.
| Company Name | Country | City | Address 1 | State/Province | Postal Code | Website | Founding Year | Yearly Revenue in U.S. Dollars | Employees Total | Business Legal Type - Description | Number of Companies in Group | Company Registration Number | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Ultra Clean Holdings, INC. | USA | Hayward | 26462 Corporate Ave | Mariposa | 94545-3914 | uct.***** | 2002 | $2,054,000,000 | 7,411 | Corporation | 78 | 3584745 |
| 2 | Pacific Cheese CO., INC. | USA | Hayward | 21090 Cabot Blvd | Mariposa | 94545-1110 | pacificcheese.***** | 1970 | $1,000,000,000 | 288 | Corporation | 3 | 0664353 |
| 3 | Ultra Clean Technology Systems And Service, INC. | USA | Hayward | 26462 Corporate Ave | Mariposa | 94545-3914 | uct.***** | 1991 | $474,004,112 | 2,017 | Corporation | 78 | 1692143 |
| 4 | Hayward Unified School District | USA | Hayward | 24411 Amador St | Mariposa | 94544-1376 | husd.***** | 1983 | $461,987,020 | 2,400 | Corporation | 49 | N/A |
| 5 | City Of Hayward | USA | Hayward | 777 B St | Mariposa | 94541-5007 | hayward-ca.***** | 1876 | $282,572,011 | 900 | Proprietorship | 21 | N/A |
| 6 | Arcus Biosciences, INC. | USA | Hayward | 3928 Point Eden Way | Mariposa | 94545-3719 | arcusbio.***** | 2015 | $247,000,000 | 627 | Corporation | 4 | 5738952 |
| 7 | Pentagon Technologies Group, INC. | USA | Hayward | 21031 Alexander Ct | Mariposa | 94545-1234 | pen-tec.***** | 2020 | $234,214,347 | 383 | Corporation | 259 | 5183618 |
| 8 | Rodan Builders, INC. | USA | Hayward | 3486 Investment Blvd # B | Mariposa | 94545-3811 | rodanbuilders.***** | 2004 | $181,255,674 | 250 | Corporation | N/A | 2714491 |
| 9 | Alcal Industries, INC. | USA | Hayward | 25823 Clawiter Rd | Mariposa | 94545-3217 | igate.***** | 2003 | $180,073,238 | 118 | Corporation | 15 | 2431693 |
| 10 | Mygrant Glass Company, INC. | USA | Hayward | 3271 Arden Rd | Mariposa | 94545 | mygrantglassonline.***** | 1926 | $168,979,658 | 600 | Corporation | 53 | 0537924 |
| 11 | Hayward Sisters Hospital | USA | Hayward | 27200 Calaroga Ave | Mariposa | 94545-4339 | strosehospital.***** | 2013 | $136,066,076 | 850 | Corporation | 11 | 0543588 |
| 12 | ST. Rose Hospital | USA | Hayward | 27200 Calaroga Ave | Mariposa | 94545-4383 | strosehospital.***** | 1955 | $111,592,015 | 820 | Corporation | 11 | 0297341 |
| 13 | Alameda Electric Supply | USA | Hayward | 3875 Bay Center Pl | Mariposa | 94545-3619 | alamedaelectric.***** | 1976 | $104,731,647 | 68 | Corporation | 15 | 0764682 |
| 14 | Medical Services, INC. | USA | Hayward | 11040 N State Road 77 | Sawyer | 54843 | tamarackhealth.***** | 1986 | $98,267,512 | 490 | Corporation | N/A | M 034575 |
| 15 | Shasta Beverages, INC. | USA | Hayward | 26901 Indl Blvd | Mariposa | 94545 | shastapop.***** | 1985 | $92,859,707 | 600 | Corporation | 69 | 2074885 |
| 16 | Morgan Advanced Ceramics, INC. | USA | Hayward | 2425 Whipple Rd | Mariposa | 94544-7807 | morgantechnicalceramics.***** | 1991 | $92,132,833 | 572 | Corporation | 151 | 5444191 |
| 17 | Mdc Precision, LLC | USA | Hayward | 30962 Santana St | Mariposa | 94544-7058 | mdcprecision.***** | 2005 | $88,288,986 | 415 | Corporation | 11 | 4032230 |
| 18 | Eden Housing, INC. | USA | Hayward | 22645 Grand St | Mariposa | 94541-5031 | edenhousing.***** | 1968 | $85,982,657 | 162 | Corporation | 32 | 0545088 |
| 19 | Eos IT Management Solutions INC. | USA | Hayward | 30826 Santana St | Mariposa | 94544-7060 | N/A | 2016 | $82,573,574 | 570 | Corporation | 13 | 5584068 |
| 20 | Alameda County Office Of Education | USA | Hayward | 313 W Winton Ave | Mariposa | 94544 | acoe.***** | 1976 | $81,478,396 | 252 | Corporation | 18 | N/A |
| 21 | Plastikon Industries | USA | Hayward | 687 Sandoval Way | Mariposa | 94544-7130 | plastikon.***** | 2010 | $80,050,037 | 500 | Corporation | 5 | 0920130 |
| 22 | Western Pacific Distributors Incorporated | USA | Hayward | 1739 Sabre St | Mariposa | 94545-1015 | teamwpd.***** | 1984 | $78,144,541 | 43 | Corporation | 6 | 0984980 |
| 23 | Hayward Area Recreation & Pk.dist | USA | Hayward | 1099 E St | Mariposa | 94541-5210 | haywardrec.***** | 1944 | $69,571,958 | 130 | Corporation | 12 | 942901655 |
| 24 | California Hydronics CORPORATION | USA | Hayward | 2293 Tripaldi Way | Mariposa | 94545-5024 | linkedin.***** | 1957 | $58,831,453 | 85 | Corporation | 13 | 0343539 |
| 25 | Quartzy, INC. | USA | Hayward | 28321 Industrial Blvd | Mariposa | 94545-4428 | quartzy.***** | 2007 | $49,984,926 | 100 | Corporation | 2 | N/A |
Showing 25 of 27,200 companies
Request Free SampleLargest industries in Hayward
The biggest industry groups in Hayward by registered company count, with the top five companies by revenue in each.
Restaurants and eating places
972 companies
SIC 5812
General Contractors-Single-Family Houses
830 companies
SIC 1521
Transportation Services, Not Elsewhere Classified
665 companies
SIC 4789
Local Trucking Without Storage
643 companies
SIC 4212
Business Consulting Services, Not Elsewhere Classified
575 companies
SIC 8748
Real estate agents and managers
482 companies
SIC 6531
Operators of Nonresidential Buildings
417 companies
SIC 6512
All industries in Hayward
Together, general business services, restaurants and eating places and General Contractors-Single-Family Houses make up the top three industries in Hayward, accounting for 11% of the city's commercial activity. The oldest company we can find in Hayward is Saint Joseph's Catholic Church, founded in 1800, with Lac Courte Oreilles Band Of Lake Superior Chippewa Indians Of WI not far behind. They're still here, along with hundreds of thousands of others.
Warehouses, food producers and machine shops fill Hayward's flatlands by the bay, close enough to Oakland and Silicon Valley to serve both in a day. All of them are in our data. Search Hayward businesses in the live tool below, get the full list delivered as an Excel file, or pull the records straight into your own systems through our API.
- Nonclassifiable Establishments3,869
- Business Services, Not Elsewhere Classified1,209
- Eating Places972
- General Contractors-Single-Family Houses830
- Transportation Services, Not Elsewhere Classified665
- Local Trucking Without Storage643
- Business Consulting Services, Not Elsewhere Classified575
- Real Estate Agents and Managers482
- Operators of Nonresidential Buildings417
- Beauty Shops410
- Other industries17,128
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Open the search toolFrequently Asked Questions
Common questions about searching, filtering, and ordering Hayward company data.
Our Hayward business directory currently lists every registered legal entity with a Hayward address in the official United States business register. The exact count is shown live at the top of this page.
Hayward records are sourced directly from the official United States business register and enriched with 50+ data points: revenue, employees, industry codes, contact details, and ownership.
Core registry fields are refreshed weekly. Enriched fields (revenue, employees, contact) are refreshed monthly so your Hayward list never goes stale.
Yes. Every Hayward record is tagged with SIC industry codes. You can request your directory filtered by one or several SIC codes, employee size bands, or revenue thresholds.
Excel (.xlsx), CSV, and JSON. For API customers, data is streamed as paginated JSON. Custom formats (Parquet, SQL dump) are available on request.
Yes. We only deliver legal-entity data and publicly listed business contact details. We do not include personal data of natural persons unless required by the company register itself (e.g. sole traders).
Yes. Request a free 100-record sample of Hayward data and we will email it within one business day.
Yes. The full Hayward dataset is available through our REST API with the same filters as our directory builder. See our API page for pricing tiers.
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