California Top Companies List by Market Cap as of August 2026

California Top Companies List by Market Cap as on August 2026. Biggest California Companies List by Market Cap in August 2026. California Largest Companies in August 2026.

California Top Companies by Market Cap in 2026
California Top Companies by Market Cap in 2026, California Largest Companies in 2026, Biggest California Companies by Market Cap.

  1. Viking Therapeutics

    World Rank (Aug-2026)
    4,274
    Market Cap (Aug-2026)
    3.872 Billion USD
    World Rank (Jan-05-2024)
    5,954
    Market Cap (Jan-05-2024)
    1.859 Billion USD
    World Rank (Jul-30-2023)
    7,050
    Market Cap (Jul-30-2023)
    1.442 Billion USD
    World Rank (Dec-25-2022)
    10,811
    Market Cap (Dec-25-2022)
    0.648 Billion USD
    World Rank (Jan-07-2022)
    16,059
    Market Cap (Jan-07-2022)
    0.33 Billion USD
    Annual Revenue in USD
    0 Million USD
    Annual Operating Income in USD
    -393 Million USD
    Annual Net Income in USD
    -360 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ Nasdaq
    Company Profile
    Viking Therapeutics is a Clinical Stage Biopharmaceutical company. It is focused on the development of novel, orally available, first in class or best in class therapies for the treatment of metabolic and endocrine disorders. The company annual revenue is 7.3 million USD and 15 employees as 2019. The headquarters is in USA.
    Company Website
    VIKING THERAPEUTICS

  2. Ultra Clean Holdings

    World Rank (Aug-2026)
    4,291
    Market Cap (Aug-2026)
    3.845 Billion USD
    World Rank (Jan-05-2024)
    6,919
    Market Cap (Jan-05-2024)
    1.445 Billion USD
    World Rank (Jul-30-2023)
    6,555
    Market Cap (Jul-30-2023)
    1.615 Billion USD
    World Rank (Dec-25-2022)
    6,507
    Market Cap (Dec-25-2022)
    1.516 Billion USD
    World Rank (Jan-07-2022)
    5,567
    Market Cap (Jan-07-2022)
    2.43 Billion USD
    Annual Revenue in USD
    2,054 Million USD
    Annual Operating Income in USD
    -107 Million USD
    Annual Net Income in USD
    -181 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ Nasdaq
    Company Profile
    Ultra Clean Holdings is a Semiconductor Manufacturing company. The company products are Chemical and gas delivery, mechatronics, system integration and thermal control. It improvs design to delivery cycle times, design for manufacturability, prototyping and component manufacturing, and tool chamber parts cleaning and coating as well as micro contamination analytical services. It services are QuantumClean and ChemTrace. The headquarters is in USA.
    Company Website
    ULTRA CLEAN HOLDINGS

  3. QuantumScape Corporation

    World Rank (Aug-2026)
    4,314
    Market Cap (Aug-2026)
    3.808 Billion USD
    World Rank (Jan-05-2024)
    3,509
    Market Cap (Jan-05-2024)
    3.996 Billion USD
    World Rank (Jul-30-2023)
    2,575
    Market Cap (Jul-30-2023)
    5.887 Billion USD
    World Rank (Dec-25-2022)
    4,737
    Market Cap (Dec-25-2022)
    2.441 Billion USD
    World Rank (Jan-07-2022)
    2,066
    Market Cap (Jan-07-2022)
    8.88 Billion USD
    Annual Operating Income in USD
    -473 Million USD
    Annual Net Income in USD
    -435 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile

    QuantumScape Corporation manufactures solid-state lithium-metal batteries for use in electric vehicles. Headquarters is in California, USA.

    • QuantumScape raises fund over $700 million in proceeds through the business combination, including a $500 million fully committed PIPE anchored by institutional investors including Fidelity Management & Research Company LLC and Janus Henderson Investors

    QuantumScape and Kensington Capital Acquisition Corp. (NYSE: KCAC) will be merged and will be traded with ticker "QS" on NYSE.

    Company Website
    QuantumScape
    Wikipedia
    Wikipedia

  4. Mechanics Bank

    World Rank (Aug-2026)
    4,333
    Market Cap (Aug-2026)
    3.782 Billion USD
    World Rank (Jan-07-2022)
    37,440
    Annual Revenue in USD
    50 Million USD
    Annual Net Income in USD
    266 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Company Website
    MECHANICS BANK
    Wikipedia
    Wikipedia

  5. Navitas Semiconductor Corporation

    World Rank (Aug-2026)
    4,342
    Market Cap (Aug-2026)
    3.773 Billion USD
    World Rank (Jan-05-2024)
    7,414
    Market Cap (Jan-05-2024)
    1.291 Billion USD
    World Rank (Jul-30-2023)
    6,271
    Market Cap (Jul-30-2023)
    1.736 Billion USD
    World Rank (Dec-25-2022)
    11,973
    Market Cap (Dec-25-2022)
    0.534 Billion USD
    Annual Revenue in USD
    46 Million USD
    Annual Operating Income in USD
    -108 Million USD
    Annual Net Income in USD
    -117 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Company Website
    NAVITAS SEMICONDUCTOR CORPORATION

  6. OSI Systems

    World Rank (Aug-2026)
    4,352
    Market Cap (Aug-2026)
    3.763 Billion USD
    World Rank (Jan-05-2024)
    5,430
    Market Cap (Jan-05-2024)
    2.158 Billion USD
    World Rank (Jul-30-2023)
    5,805
    Market Cap (Jul-30-2023)
    1.968 Billion USD
    World Rank (Dec-25-2022)
    7,048
    Market Cap (Dec-25-2022)
    1.342 Billion USD
    World Rank (Jan-07-2022)
    7,092
    Market Cap (Jan-07-2022)
    1.64 Billion USD
    Annual Revenue in USD
    1,786 Million USD
    Annual Operating Income in USD
    219 Million USD
    Annual Net Income in USD
    155 Million USD
    Annual Results for Period Ending
    For year ending June-2026
    Headquarters Country
    USA
    Yahoo @ Nasdaq
    Company Profile
    OSI Systems is a Vertically Integrated Designer and Manufacturer of specialized electronic systems and components for critical applications in Homeland Security, Healthcare, Defense and Aerospace. The company provides specialized electronic components and electronic manufacturing services to security and healthcare divisions as well as to external original equipment manufacturers and end users for applications in the defense, aerospace, medical and industrial markets. The headquarters is in USA.
    Company Website
    OSI SYSTEMS INC

  7. Arcus Biosciences

    World Rank (Aug-2026)
    4,362
    Market Cap (Aug-2026)
    3.754 Billion USD
    World Rank (Jan-05-2024)
    6,836
    Market Cap (Jan-05-2024)
    1.477 Billion USD
    World Rank (Jul-30-2023)
    7,002
    Market Cap (Jul-30-2023)
    1.455 Billion USD
    World Rank (Dec-25-2022)
    6,609
    Market Cap (Dec-25-2022)
    1.478 Billion USD
    World Rank (Jan-07-2022)
    5,322
    Market Cap (Jan-07-2022)
    2.63 Billion USD
    Annual Revenue in USD
    33 Million USD
    Annual Operating Income in USD
    -386 Million USD
    Annual Net Income in USD
    -353 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile
    Arcus is a Biopharmaceutical company aiming to bring together scientists, physicians and advisors to focus on developing best in class cancer therapies. The company annual revenue is 77.8 million USD and 108 employees as on 2019. The headquarters is in USA.
    Company Website
    ARCUS BIOSCIENCES

  8. Bird Rides

    World Rank (Aug-2026)
    4,472
    World Rank (Jan-05-2024)
    4,472
    World Rank (Jul-30-2023)
    4,472
    World Rank (Dec-25-2022)
    4,472
    World Rank (Jan-07-2022)
    4,472
    Headquarters Country
    USA
    Company Profile
    BIRD RIDES is electric scooters manufacturing startup company. Headquarters is in California, USA.
    Company Website
    BIRD RIDES
    Wikipedia
    Wikipedia

  9. Cohesity

    World Rank (Aug-2026)
    4,472
    World Rank (Jan-05-2024)
    4,472
    World Rank (Jul-30-2023)
    4,472
    World Rank (Dec-25-2022)
    4,472
    World Rank (Jan-07-2022)
    4,472
    Headquarters Country
    USA
    Company Profile
    COHESITY is Software and IT company that works on data management. Cohesity redefines data management to solve mass data fragmentation. Cohesity lowers TCO and simplifies the way businesses back up, manage, protect, and extract value from their data in the data center, at the edge, and in the cloud.
    Company Website
    COHESITY
    Wikipedia
    Wikipedia

  10. Sambanova Systems

    World Rank (Aug-2026)
    4,472
    World Rank (Jan-05-2024)
    4,472
    World Rank (Jul-30-2023)
    4,472
    World Rank (Dec-25-2022)
    4,472
    World Rank (Jan-07-2022)
    4,472
    Headquarters Country
    USA
    Company Profile
    SAMBANOVA SYSTEMS is Software and IT company and works on machine learning, BigData analytics. Headquarters is in California, USA.
    Company Website
    SAMBANOVA SYSTEMS

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