| # | Company | Employees |
|---|---|---|
| 1 |
Googlegoogle.com
Provides a powerful search engine, web services, and advertising tools to help users find information and businesses reach customers |
304,428 |
| 2 | 184,384 | |
| 3 | 164,418 | |
| 4 | 142,944 | |
| 5 | 109,404 | |
| 6 | 95,899 | |
| 7 | 57,548 | |
| 8 |
NVIDIAnvidia.com
A pioneering company in accelerated computing, known for inventing the GPU, shaping PC gaming, computer graphics, AI development, and creating the metaverse |
48,336 |
| 9 | 47,988 | |
| 10 |
Applied Materialsappliedmaterials.com
Leader in materials engineering solutions essential for semiconductor and advanced display technologies, enabling AI advancement and next-generation chip commercialization. |
31,512 |
| 11 |
Sanminasanmina.com
A leading integrated manufacturing solutions provider offering end-to-end services to OEMs in various industries worldwide |
22,931 |
| 12 |
TD SYNNEXtdsynnex.com
Leading IT distributor and solutions aggregator providing technology products, services, and support to maximize customer IT investment value and growth. |
22,441 |
| 13 |
SpaceXspacex.com
A company specializing in designing, manufacturing, and launching advanced rockets and spacecraft with a goal of making life multiplanetary |
20,008 |
| 14 |
Seagate Technologyseagate.com
Leading provider of scalable mass-capacity data storage solutions, ensuring trust and integrity for innovations relying on vast data volumes. |
16,700 |
| 15 |
Fortinetfortinet.com
Fortinet enables trust in the digital world by protecting people, devices, and data for enterprises, service providers, and government organizations |
16,304 |
| 16 |
Edwards Lifesciencesedwards.com
Develops breakthrough structural heart technologies and medical devices for patients, partnering with clinicians to improve lives globally across over 100 countries. |
14,148 |
| 17 |
Keysight Technologieskeysight.com
Empowers innovators to explore, design, and bring world-changing technologies to life by solving design, emulation, and test challenges to help create the best product experiences |
13,893 |
| 18 |
Sony Interactive Entertainmentsonyinteractive.com
A global leader in entertainment and innovation, delivering cutting-edge hardware, network services, and award-winning games through the PlayStation line of products |
13,000 |
| 19 |
NetAppnetapp.com
It builds intelligent data infrastructure, enabling applications to utilize any data from anywhere, enhancing data management and accessibility. |
12,680 |
| 20 | 12,038 | |
| 21 |
General Atomicsga.com
Development of advanced technology solutions including unmanned aerial vehicles, research reactors, aircraft systems, MagLev transport, and fusion energy for global customers. |
11,213 |
| 22 |
Beckman Coulter Diagnosticsbeckmancoulter.com
Develops and provides advanced diagnostic solutions for complex clinical testing in hospitals, reference laboratories, and physician offices to improve patient health. |
10,628 |
| 23 |
Sunrunsunrun.com
The company offers a modern energy experience with reliable, affordable, and clean energy made from the sun, giving customers freedom in powering their lives |
10,526 |
| 24 |
Bio-Rad Laboratoriesbio-rad.com
Development and supply of innovative products for life science research and medical diagnostics, enhancing discovery and clinical results worldwide. |
9,416 |
| 25 |
Resmedresmed.com.br
The company pioneers innovative medical devices and software platforms to treat chronic diseases, improve quality of life, and reduce healthcare costs globally |
9,180 |
| 26 |
Juniper Networksjuniper.net
Develops intelligent, agile, and secure networking products and solutions serving global service providers, enterprises, and government organizations worldwide. |
9,059 |
| 27 |
Dexcomdexcom.com
A leader in continuous glucose monitoring technology, empowering individuals with diabetes to control their health and pursue their dreams |
8,997 |
| 28 |
Toshibatoshiba.com
A global technology company focusing on energy, infrastructure, electronics, and digital solutions to create a sustainable future for generations to come |
8,787 |
| 29 |
Anduril Industriesanduril.com
Transforms military capabilities through advanced technology and rapid R&D, delivering off-the-shelf products and path-making systems to support warfighters and allied defense operations. |
8,658 |
| 30 |
NASA Jet Propulsion Laboratoryjpl.jobs
A federally funded research and development center managed by Caltech for NASA, specializing in space exploration, technology development, and scientific problem-solving |
8,652 |
| 31 |
Check Point Softwarecheckpoint.com
Leading provider of cyber security solutions globally, protecting over 100,000 customers with industry-leading malware, ransomware, and threat prevention Specializes in multi-level security architecture |
8,546 |
| 32 |
Sandisksandisk.com
Innovative data storage solutions for businesses and consumers worldwide, enabling seamless capture, editing, storage, and sharing of data in various devices |
8,402 |
| 33 |
Variancancercare.siemens-healthineers.com
Development and delivery of advanced imaging, radiation therapy, software, and services supporting the entire cancer care journey globally. |
8,395 |
| 34 |
Snap Inc.careers.snap.com
A technology company focused on leveraging the camera to enhance communication, relationships, and experiences through products like a visual messaging app and AR glasses |
8,243 |
| 35 |
CooperVisioncoopervision.com
A leading manufacturer of soft contact lenses, offering a wide range of advanced products to address vision challenges and provide innovative solutions for customers and wearers |
7,615 |
| 36 |
Viasatviasat.com
Global communications company providing connectivity solutions for consumers, businesses, governments, and militaries worldwide, ensuring internet access in remote locations and on-the-go |
6,809 |
| 37 |
Squaresquareup.com
It provides integrated software and financial services to help sellers manage sales, inventory, and cash flow across various channels. |
6,380 |
| 38 |
Skyworks Solutions, Inc.skyworksinc.com
Design and manufacture of innovative analog semiconductors enabling wireless connectivity across aerospace, automotive, broadband, cellular, medical, military, and consumer electronics markets. |
5,672 |
| 39 |
Samsarasamsara.com
A pioneer in Connected Operationsโข Cloud, leveraging IoT data for actionable insights to improve operations in various industries worldwide |
5,639 |
| 40 |
Sun Microsystemsoracle.com
Development and marketing of database, middleware, application software, and hardware including Solaris, Java, MySQL, storage, server, and network products. |
5,315 |
| 41 |
Pure Storageeverpuredata.com
Provides secure, real-time data storage solutions for SaaS, cloud providers, enterprises, enabling AI, machine learning, and multi-cloud environments. |
5,239 |
| 42 | 4,712 | |
| 43 |
Teledyne Technologies Incorporatedteledyne.com
Provider of sophisticated electronic components, instruments, and communication products for defense, aerospace, industrial, and environmental applications. |
4,561 |
| 44 |
Kia Americakia.com
A technology-rich product lineup of cars, SUVs, and alternative-powered vehicles with an industry-leading warranty program Headquarters in Irvine, California |
4,487 |
| 45 |
Aerojet Rocketdynel3harris.com
Innovative technologies now part of L3Harris Technologies, leading in advancements and developments in various industries Follow for updates on progress |
4,147 |
| 46 |
Amazon Lab126amazon.jobs
A San Francisco Bay Area team that designs and engineers consumer electronic devices such as Fire tablets, Kindle e-readers, and Amazon Echo |
4,136 |
| 47 |
HGST, a Western Digital brandwesterndigital.com
A global leader in data storage solutions focused on driving data center transformation with innovative, efficient, and reliable technology for various industries |
4,046 |
| 48 |
OSI Systemsosi-systems.com
A diversified global developer and supplier of specialized electronic systems for homeland security, healthcare, defense, and aerospace with a focus on real-world problem-solving |
4,029 |
| 49 |
eInfochips (An Arrow Company)einfochips.com
A global provider of product engineering, semiconductor design, and IoT solutions across various cloud platforms with a focus on innovation and client success |
4,006 |
| 50 |
Applied Medicalappliedmedical.com
Designs, develops, manufactures, and distributes surgical devices for various medical specialties, focusing on enhanced clinical outcomes, cost containment, and choice. |
3,990 |
| 51 |
ICScoloricscolor.com
A global leader in digital color management, providing cloud-based solutions to ensure consistent color viewing across collaborations Specialists in spectral values and expanded gamut profiles |
3,737 |
| 52 |
Yamaha Motor Corporation, USAyamaha-motor.com
A company that provides a wide range of products, from motorcycles to boats, aiming to enhance customers' experiences and contribute to their quality of life |
3,718 |
| 53 |
Lumentumlumentum.com
A leading designer and manufacturer of optical and photonic products for optical networking, laser applications, telecom, enterprise, data centers, and advanced manufacturing worldwide |
3,690 |
| 54 |
GIA (Gemological Institute of America)gia.edu
A nonprofit committed to research, education, and innovation in the gem industry, ensuring public trust and promoting sustainability |
3,399 |
| 55 |
Enphase Energyenphase.com
Global provider of microinverter-based solar and battery systems, leading the way in energy technology for a sustainable future |
2,961 |
| 56 |
Verkadaverkada.com
Transforms how organizations protect people and places. Provides an integrated, AI-powered platform unifying video, access control, sensors, alarms, intercoms, and workplace tools. |
2,727 |
| 57 |
Cisco Merakimeraki.cisco.com
Develop intuitive technologies to optimize experiences, secure locations, and connect people, places, and things in digital workplaces. |
2,657 |
| 58 |
BizLink Groupbizlinktech.com
Manufacture and supply wire harnesses, connectors, and cables for ICT, electronics, healthcare, transportation, and industrial automation sectors worldwide. |
2,601 |
| 59 |
Cypress Semiconductor Corporationinfineon.com
Closing in April, a company will merge with Infineon Join their community for updates and news on their services |
2,581 |
| 60 | 2,533 | |
| 61 |
Hewlett Packardhpe.com
An American multinational IT company offering hardware components, software, and services to consumers, SMBs, large enterprises, government, health, and education sectors Founded in 1939 |
2,526 |
| 62 |
Cubic Transportation Systemscubic.com
A global leader in transportation systems, providing payment solutions and traveler tools for seamless journeys while revolutionizing the industry |
2,452 |
| 63 |
Bloom Energybloomenergy.com
Bloom Energy provides sustainable and reliable distributed energy solutions to businesses worldwide, helping them lower costs, reduce emissions, and increase energy independence |
2,269 |
| 64 |
Envista Holdings Corporationenvistaco.com
Partners with dental professionals, providing industry-leading products, solutions, and technology for diagnosing, treating, preventing dental conditions, and improving smile aesthetics globally. |
2,210 |
| 65 |
Revelystrevelyst.com
Innovative maker brands pushing boundaries and setting new standards for outdoor products and experiences |
2,194 |
| 66 |
Synaptics Incorporatedsynaptics.com
This company is revolutionizing human interactions with technology by providing innovative solutions for home, work, car, and on-the-go experiences |
2,179 |
| 67 |
Symphony Telecaharman.com
This company designs connected products and solutions for consumers, automakers, and enterprises worldwide, specializing in audio, visual, infotainment systems, and software services |
2,153 |
| 68 |
Suzuki Motor of America, Inc.suzuki.com
A team of product enthusiasts committed to providing quality and innovative products, with a focus on ethical business practices and integrity Emphasis on fostering a fun work environment |
2,131 |
| 69 |
Joby Aviationjobyaviation.com
California-based company developing quiet, all-electric aircraft for vertical takeoff/landing, revolutionizing transportation with reduced acoustic and climate impact |
2,088 |
| 70 |
Antech Diagnosticsantechdiagnostics.com
A network of veterinary diagnostic laboratories providing a wide range of diagnostic services to veterinarians, animal hospitals, zoos, and government agencies in the US |
2,059 |
| 71 |
Rocket Labrocketlabcorp.com
designs, manufactures, launches rockets and spacecraft for Earth orbit, Moon, Mars missions, including small and hypersonic vehicles |
2,027 |
| 72 |
Retiredww38.monarchmakers.com
The company specializes in manufacturing drones and developing UAV systems for agriculture, energy, and land survey industries, along with offering 3D printing and engineering services |
1,994 |
| 73 |
PUBLICpublicbikes.com
A design-oriented company based in San Francisco, offering city bicycles and gear to make riding more enjoyable and stylish They aim to promote walking and biking in urban spaces |
1,991 |
| 74 | 1,960 | |
| 75 |
SonicWallsonicwall.com
Provides real-time protection against cyberattacks across cloud, hybrid, and traditional environments for remote, mobile, and cloud-enabled users, serving enterprise, government, and SMBs. |
1,954 |
| 76 |
Razer Inc.careers.razer.com
A global lifestyle brand for gamers, offering a wide range of gaming hardware, software, and services, with a strong presence in the esports community |
1,924 |
| 77 |
Solidigmsolidigm.com
Global provider of innovative NAND flash memory solutions, unlocking dataโs potential for human advancement Formerly a part of Intel and now a subsidiary of SK hynix |
1,918 |
| 78 |
Atmel Corporationmicrochip.com
Provider of mixed-signal, analog, and Flash-IP solutions enabling low-risk product development and faster time to market worldwide. |
1,904 |
| 79 |
iRhythm Technologies, Inc.irhythm.com
A digital health company using wearable biosensors and data analytics to detect, predict, and prevent disease, with a focus on patient care and innovation |
1,874 |
| 80 |
Ziplinezipline.com
Designs, manufactures, and operates an automated delivery system serving tens of millions globally, transforming how goods move through clean, electric, instant logistics. |
1,867 |
| 81 |
Archerarcher.com
The company designs and develops electric VTOL aircraft for urban air mobility, aiming to revolutionize transportation and free people to reimagine movement |
1,841 |
| 82 |
Arcarcboats.com
Innovative marine startup in LA developing high-performance electric boats, led by former rocket engineers, setting new industry standards and electrifying the marine industry |
1,828 |
| 83 |
Roche Molecular Systemsroche.com
A California-based company part of Roche Diagnostics in Switzerland, specializing in developing and supplying innovative medical diagnostic products and services |
1,748 |
| 84 |
Kingston Technologykingston.com
A leading manufacturer of memory products with a global presence, known for its exemplary corporate culture and commitment to its employees' success |
1,718 |
| 85 |
Kawasaki Motors Corp., U.S.A.kawasaki.com
Marketing and distributing motorcycles, ATVs, watercraft, and engines through extensive retailer networks, supporting motorsports and customer service excellence. |
1,716 |
| 86 |
Hinge Healthhingehealth.com
AI-driven musculoskeletal care combining wearable technology and expert clinicians to deliver personalized, evidence-based treatment improving outcomes and reducing costs. |
1,665 |
| 87 |
Topcon Positioning Systemstopconpositioning.com
Leading manufacturer for construction, geospatial, and agriculture markets, creating technology improving workflows. Also, global leader in positioning and ophthalmic diagnostic technologies. |
1,648 |
| 88 |
Ducommun Incorporatedducommun.com
A global provider of innovative manufacturing solutions for aerospace, defense, and industrial markets, specializing in electronic and structural systems |
1,639 |
| 89 | 1,638 | |
| 90 |
Rivian and Volkswagen Group Technologiesrivianvw.tech
Development of advanced software and connectivity solutions for electric vehicles, including operating systems and zonal controllers, setting industry standards. |
1,627 |
| 91 |
Extronextron.com
The company specializes in designing and providing advanced audiovisual solutions for various industries worldwide, focusing on enhancing experiences and efficiency |
1,627 |
| 92 |
Harmonicharmonicinc.com
Industry leader in video, broadband, and media solutions Specializing in cloud streaming, software as a service, and enabling content delivery to all screens |
1,612 |
| 93 |
MiniMedminimed.com
Development and provision of comprehensive insulin delivery systems designed to reduce the daily challenges faced by people with diabetes. |
1,594 |
| 94 |
Riverbed Technologyriverbed.com
This company offers unified observability solutions to deliver seamless digital experiences and secure acceleration of any app over any network worldwide |
1,587 |
| 95 | 1,577 | |
| 96 |
Commurecommure.com
Innovative technologies enhancing healthcare workforce, solving industry challenges, and catalyzing a vibrant health ecosystem for hospitals and health systems |
1,577 |
| 97 | 1,569 | |
| 98 |
LSI, an Avago Technologies Companybroadcom.com
Provider of analog, digital, mixed signal, and optoelectronics components and subsystems for wireless, wired, storage, and industrial markets. |
1,556 |
| 99 |
Kyocera International, Inc. (North America)americas.kyocera.com
A leading provider of high-tech products for consumers and businesses including fine ceramics, semiconductor components, communication equipment, consumer products, and more |
1,553 |
| 100 |
Toshiba Businessbusiness.toshiba.com
The company offers copiers, printers, managed document services, and digital signage solutions for businesses across the Americas, specializing in innovative communication management |
1,545 |
Turn this list into pipeline
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.
More company lists in California
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The same list elsewhere in United States
- Hardware manufacturers in the United States 1,924
- Hardware manufacturers in Texas 171
- Hardware manufacturers in Illinois 127
- Hardware manufacturers in Michigan 96
- Hardware manufacturers in Ohio 76
- Hardware manufacturers in Massachusetts 68
- Hardware manufacturers in New York State 67
- Hardware manufacturers in Pennsylvania 67
- Hardware manufacturers in Florida 62
- Hardware manufacturers in Wisconsin 57
- Hardware manufacturers in Alabama 53
- Hardware manufacturers in New Jersey 52
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- Hardware manufacturers in Colorado 38
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