The companies listed in San Jose are predominantly large technology firms, with a strong emphasis on software development and computer hardware manufacturing. Notable examples include Cisco, a technology company specializing in Internet solutions and networking, and Adobe, which provides digital media and marketing solutions. Other significant players are PayPal, known for enabling global money movement, and eBay, connecting buyers and sellers worldwide.
A recurring theme among these San Jose-based companies is their focus on digital infrastructure and services. Many, like Symantec, which offers comprehensive cybersecurity solutions, and NetApp, building intelligent data infrastructure, were founded in the 1980s and 1990s, indicating a mature tech hub.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 95,899 | ||||
| 2 | 42,354 | ||||
| 3 |
PayPalpaypal.com
Enables fast, easy, enjoyable money movement for individuals and businesses globally, unlocking opportunities and empowering everyday financial interactions for millions. |
38,343 | |||
| 4 | 27,000 | ||||
| 5 |
Sanminasanmina.com
A leading integrated manufacturing solutions provider offering end-to-end services to OEMs in various industries worldwide |
22,931 | |||
| 6 |
WDwesterndigital.com
This company creates innovative data storage solutions for current technology and future advancements |
22,696 | |||
| 7 |
Broadcom Softwarebroadcom.com
Global software leader optimizing and protecting complex hybrid environments for multinational companies with industry-leading business-critical software, enabling scalability, agility, and security |
17,981 | |||
| 8 |
Symantecbroadcom.com
It offers comprehensive cybersecurity solutions for Endpoint, Network, Data, and Cloud security, catering to both individuals and enterprises. |
12,852 | |||
| 9 |
NetAppnetapp.com
It builds intelligent data infrastructure, enabling applications to utilize any data from anywhere, enhancing data management and accessibility. |
12,680 | |||
| 10 |
Cadencecadence.com
Development of software, hardware, and IP enabling innovative electronic product design across diverse markets like 5G, automotive, aerospace, and healthcare. |
11,424 | |||
| 11 |
Nutanixnutanix.com
Global leader in cloud software, providing a platform for running apps and data across clouds, simplifying operations for businesses worldwide |
9,917 | |||
| 12 |
Logitechlogitech.com
Innovative hardware and software solutions bringing people together in work, creation, gaming, and streaming, with a focus on sustainability |
9,325 | |||
| 13 |
Zscalerzscaler.com
Leading organization enabling secure network and application transformation for mobile and cloud-first world, offering fast, secure, cloud-delivered services globally for enhanced cybersecurity |
8,865 | |||
| 14 |
iMerit Technologyimerit.ai
A leading AI data solutions company providing high-quality data labeling technologies for machine learning applications across various industries |
8,052 | |||
| 15 |
Supermicrosupermicro.com
A global technology leader providing innovative solutions for Enterprise, Cloud, AI, 5G Telco/Edge IT Infrastructure, including servers, storage, IoT, switches, and related services |
5,562 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
McAfeemcafee.com
This company is focused on creating innovative solutions for online protection, allowing people to enjoy a safe online experience with confidence |
5,555 | |||
| 17 |
Maxim Integratedanalog.com
Semiconductor company specializing in analog and mixed-signal integrated circuits, now part of Analog Devices corporation. |
5,410 | |||
| 18 |
HPE Aruba Networkinghpe.com
Design and delivery of Mobility-Defined Networks enabling advanced connectivity and empowerment for tech-savvy users in modern environments. |
4,903 | |||
| 19 |
Cisco Networking Academynetacad.com
Offers digital skills training through partnerships, curriculum, and inclusive workforce development programs to prepare individuals for IT careers. |
4,842 | |||
| 20 |
Automation Anywhereautomationanywhere.com
Provides agentic automation by combining goal-driven AI agents, RPA, APIs, and human expertise to orchestrate mission-critical enterprise workflows end-to-end, delivering measurable outcomes across various sectors. |
4,542 | |||
| 21 |
Tredence Inc.tredence.com
Global data science solutions provider, focused on closing the gap between AI insights and tangible business value for clients across various industries. |
4,440 | |||
| 22 |
Rokuweareroku.com
A leading streaming TV platform offering Roku-branded hardware, smart home systems, and original content, reaching millions of households worldwide Join us at wearerokucom |
4,386 | |||
| 23 |
CA Technologiesbroadcom.com
Company transitioned to Broadcom, directing job seekers and followers to Broadcom's LinkedIn for employment and company updates. |
4,071 | |||
| 24 |
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 | |||
| 25 |
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 | |||
| 26 |
ACL Digitalacldigital.com
A design-led digital solutions provider, specializing in digital experience, product innovation, and consulting for enterprises, SMBs, and startups worldwide |
3,787 | |||
| 27 |
iOPEX Technologiesiopex.com
iOPEX offers optimized IT management and Automation services, creating tailor-made solutions to maximize technology investments and drive business growth |
3,783 | |||
| 28 |
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 | |||
| 29 |
Bristleconebristlecone.com
A leading provider of AI-powered application transformation services for the digital supply chain, offering solutions in digital logistics, manufacturing, planning, procurement, and digitalization |
3,670 | |||
| 30 |
Century21century21.com
A global real estate network with over 8,000 offices and 143,000 sales associates, offering an Internet-based referral system for worldwide leads |
2,647 | |||
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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 Nov 11, 2026.
More company lists in San Jose
- The largest companies in San Jose 561
- Companies with in-house R&D in San Jose 103
- SaaS companies in San Jose 88
- IT Services and IT Consulting companies in San Jose 87
- AI companies in San Jose 84
- Hardware manufacturers in San Jose 83
- Software Development companies in San Jose 75
- IT services companies in San Jose 75
- Electronics and semiconductor companies in San Jose 58
- Manufacturers in San Jose 57
- Professional services firms in San Jose 47
- Publicly traded companies in San Jose 38
- Consulting firms in San Jose 37
- Subscription businesses in San Jose 37
- Semiconductor Manufacturing companies in San Jose 34
- AI-native companies in San Jose 29
- Technology, Information and Internet companies in San Jose 26
The same list elsewhere in United States
- Multinational companies in the United States 16,197
- Multinational companies in California 2,592
- Multinational companies in New York State 2,216
- Multinational companies in Texas 1,418
- Multinational companies in Florida 897
- Multinational companies in Illinois 831
- Multinational companies in Massachusetts 637
- Multinational companies in New Jersey 624
- Multinational companies in Georgia 521
- Multinational companies in Pennsylvania 472
- Multinational companies in Michigan 468
- Multinational companies in Alabama 416
- Multinational companies in Virginia 396
- Multinational companies in Ohio 390
- Multinational companies in North Carolina 358
- Multinational companies in Washington State 288
- Multinational companies in Colorado 228
- Multinational companies in New York 1,836
- Multinational companies in San Francisco 446
- Multinational companies in Houston 402
- Multinational companies in Chicago 366
- Multinational companies in Miami 289
- Multinational companies in Atlanta 252
- Multinational companies in Boston 241