San Jose, being at the heart of Silicon Valley, is home to many world-class technology companies. Let's take a brief look at 10 companies that have their headquarters or large offices here. (Please note that the actual size or location of these companies may vary over time, so consider this for reference only.)

1. Cisco Systems

   • A global leader in networking equipment and software.
   • It has a large headquarters campus in northern San Jose and is one of the city's major employers.

2. Adobe

   • Famous for software like Photoshop, Illustrator, and PDF.
   • Its headquarters is located in downtown San Jose, with a high-rise building that stands out as a landmark.

3. PayPal

   • A global online payment service company that spun off from eBay to become an independent entity.
   • It has its headquarters in San Jose and is considered one of the leading companies in fintech and e-commerce.

4. eBay

   • Operates an online auction and shopping platform and is also the birthplace of PayPal.
   • It is headquartered in San Jose and continues to have a significant influence on the online market ecosystem worldwide.

5. Zoom Video Communications

   • Known for its video conferencing platform, it experienced explosive growth after the pandemic.
   • It has a major office near downtown San Jose and has established itself as a rising force in the Silicon Valley tech industry.

6. Western Digital

   • Famous for manufacturing storage products like hard disk drives (HDD) and solid-state drives (SSD).
   • Research and development are conducted at its San Jose campus, making it one of the global leaders in storage solutions.

7. Broadcom

   • A multinational company active in the semiconductor and infrastructure software sectors.
   • It has offices and engineering centers in San Jose and various locations in Silicon Valley, with active research in chip design and communication semiconductors.

8. Roku

   • A media and entertainment technology company known for its streaming players (set-top boxes) and TV operating systems.
   • It has a major branch in San Jose and continues to grow steadily in the home entertainment sector.

9. Xilinx (now acquired by AMD)

   • A global leader in FPGA (field-programmable gate array) technology, producing chips widely used in data centers, automotive, and communications.
   • It was headquartered in San Jose and is now operated under AMD after its acquisition.

10. Verifone

• Well-known for electronic payment terminals and POS systems.
• It has headquarters-level facilities in San Jose and provides payment and fintech solutions worldwide.

In addition, San Jose is home to numerous global companies' branches and research centers, including Samsung, LG, and Google, making it a city where innovation and competition are always fierce.

The phrase "the center of global IT and tech" is not an exaggeration, as the vibrancy of technology and industry is palpable throughout San Jose.