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. Extreme Networks

    World Rank (Aug-2026)
    4,849
    Market Cap (Aug-2026)
    3.192 Billion USD
    World Rank (Jan-05-2024)
    5,296
    Market Cap (Jan-05-2024)
    2.252 Billion USD
    World Rank (Jul-30-2023)
    3,901
    Market Cap (Jul-30-2023)
    3.514 Billion USD
    World Rank (Dec-25-2022)
    4,762
    Market Cap (Dec-25-2022)
    2.423 Billion USD
    World Rank (Jan-07-2022)
    6,613
    Market Cap (Jan-07-2022)
    1.85 Billion USD
    Annual Revenue in USD
    1,284 Million USD
    Annual Operating Income in USD
    63 Million USD
    Annual Net Income in USD
    42 Million USD
    Annual Results for Period Ending
    For year ending June-2026
    Headquarters Country
    USA
    Yahoo @ Nasdaq
    Company Profile
    Extreme Networks is a Network Equipment company. The headquarters is in USA.
    Facts About Company
    It is having 2,441 employees as on 2021.
    Company Website
    EXTREME NETWORKS

  2. Exponent

    World Rank (Aug-2026)
    4,851
    Market Cap (Aug-2026)
    3.190 Billion USD
    World Rank (Jan-05-2024)
    3,259
    Market Cap (Jan-05-2024)
    4.378 Billion USD
    World Rank (Jul-30-2023)
    3,226
    Market Cap (Jul-30-2023)
    4.528 Billion USD
    World Rank (Dec-25-2022)
    2,684
    Market Cap (Dec-25-2022)
    5.092 Billion USD
    World Rank (Jan-07-2022)
    3,078
    Market Cap (Jan-07-2022)
    5.40 Billion USD
    Annual Revenue in USD
    582 Million USD
    Annual Operating Income in USD
    120 Million USD
    Annual Net Income in USD
    106 Million USD
    Annual Results for Period Ending
    For year ending January-2026
    Headquarters Country
    USA
    Yahoo @ Nasdaq
    Company Profile

    Exponent is Engineering, Scientific, Environmental and Health Consulting Services company. It has scientists, physicians, engineers and regulatory consultants brings together more than 90 technical disciplines to address complicated issues facing industry and government today. The headquarters is in USA.

    Company Website
    EXPONENT INC

  3. Pulse Biosciences

    World Rank (Aug-2026)
    4,870
    Market Cap (Aug-2026)
    3.177 Billion USD
    World Rank (Jan-05-2024)
    11,984
    Market Cap (Jan-05-2024)
    0.555 Billion USD
    World Rank (Jul-30-2023)
    13,911
    Market Cap (Jul-30-2023)
    0.416 Billion USD
    World Rank (Dec-25-2022)
    21,978
    Market Cap (Dec-25-2022)
    0.094 Billion USD
    World Rank (Jan-07-2022)
    14,855
    Market Cap (Jan-07-2022)
    0.40 Billion USD
    Annual Revenue in USD
    0 Million USD
    Annual Operating Income in USD
    -77 Million USD
    Annual Net Income in USD
    -73 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ Nasdaq
    Company Profile
    Pulse Biosciences is a Novel Bioelectric Medicine company committed to health innovation that has the potential to improve and extend the lives of patients. It have 112 issued patents globally owned and licensed. The company annual revenue is 343.5 million USD and 82 employees as on 2020. The headquarters is in USA.
    Company Website
    PULSE BIOSCIENCES

  4. Iovance Biotherapeutics

    World Rank (Aug-2026)
    4,887
    Market Cap (Aug-2026)
    3.162 Billion USD
    World Rank (Jan-05-2024)
    5,548
    Market Cap (Jan-05-2024)
    2.075 Billion USD
    World Rank (Jul-30-2023)
    6,175
    Market Cap (Jul-30-2023)
    1.782 Billion USD
    World Rank (Dec-25-2022)
    8,549
    Market Cap (Dec-25-2022)
    0.966 Billion USD
    World Rank (Jan-07-2022)
    5,413
    Market Cap (Jan-07-2022)
    2.55 Billion USD
    Annual Revenue in USD
    264 Million USD
    Annual Operating Income in USD
    -403 Million USD
    Annual Net Income in USD
    -391 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ Nasdaq
    Company Profile
    Iovance Biotherapeutics is a development and commercialization of novel cancer immunotherapies based on tumor infiltrating lymphocytes company. The headquarters is in USA.
    Company Website
    IOVANCE BIOTHERAPEUTICS INC

  5. TriNet Group

    World Rank (Aug-2026)
    4,894
    Market Cap (Aug-2026)
    3.156 Billion USD
    World Rank (Jan-05-2024)
    2,568
    Market Cap (Jan-05-2024)
    5.903 Billion USD
    World Rank (Jul-30-2023)
    2,543
    Market Cap (Jul-30-2023)
    5.966 Billion USD
    World Rank (Dec-25-2022)
    3,216
    Market Cap (Dec-25-2022)
    4.070 Billion USD
    World Rank (Jan-07-2022)
    2,848
    Market Cap (Jan-07-2022)
    5.94 Billion USD
    Annual Revenue in USD
    5,010 Million USD
    Annual Net Income in USD
    155 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile

    TriNet is a Professional Employer Organization. It offers access to human capital expertise, benefits, risk mitigation and compliance, payroll and real time technology. As per 2022 worksite employees are 3,300. The headquarters is in USA.

    Company Website
    TRINET GROUP INC
    Wikipedia
    Wikipedia

  6. Banc of California

    World Rank (Aug-2026)
    4,917
    Market Cap (Aug-2026)
    3.127 Billion USD
    World Rank (Jan-05-2024)
    5,672
    Market Cap (Jan-05-2024)
    2.009 Billion USD
    World Rank (Jul-30-2023)
    9,645
    Market Cap (Jul-30-2023)
    0.840 Billion USD
    World Rank (Dec-25-2022)
    8,721
    Market Cap (Dec-25-2022)
    0.932 Billion USD
    World Rank (Jan-07-2022)
    8,010
    Market Cap (Jan-07-2022)
    1.33 Billion USD
    Annual Revenue in USD
    39 Million USD
    Annual Net Income in USD
    229 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Company Profile
    Banc of California is California premier, relationship focused, full service business bank company. It has over 650 employees, 42 offices and over 30 full service community banking branches extending from San Diego to Santa Barbara. The headquarters is in USA.
    Company Website
    BANC OF CALIFORNIA

  7. Aimmune Therapeutics

    World Rank (Aug-2026)
    4,918
    World Rank (Jan-05-2024)
    4,918
    World Rank (Jul-30-2023)
    4,918
    World Rank (Dec-25-2022)
    4,918
    World Rank (Jan-07-2022)
    4,918
    Annual Operating Income in USD
    -250 Million USD
    Annual Net Income in USD
    -248 Million USD
    Annual Results for Period Ending
    For year ending December-2019
    Headquarters Country
    USA
    Company Profile
    Aimmune Therapeutics is a biopharmaceutical company developing and bringing new treatments to people with potentially life-threatening food allergies. Headquarters is in USA.
    Company Website
    AIMMUNE THERAPEUTICS INC

  8. Hercules Capital

    World Rank (Aug-2026)
    4,918
    Market Cap (Aug-2026)
    3.126 Billion USD
    World Rank (Jan-05-2024)
    4,852
    Market Cap (Jan-05-2024)
    2.586 Billion USD
    World Rank (Jul-30-2023)
    5,156
    Market Cap (Jul-30-2023)
    2.363 Billion USD
    World Rank (Dec-25-2022)
    5,991
    Market Cap (Dec-25-2022)
    1.718 Billion USD
    World Rank (Jan-07-2022)
    6,350
    Market Cap (Jan-07-2022)
    1.97 Billion USD
    Annual Net Income in USD
    340 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile
    Hercules Capital is a Business Development company. It is focused on venture lending and the lender of choice for innovative entrepreneurs and their venture capital partners. It is having 2.5 billion USD assets under management and with an enterprise value in excess of 2.0 billion USD and a market capitalization over 1.0 billion USD. The headquarters is in USA.
    Company Website
    HERCULES CAPITAL

  9. Ducommun

    World Rank (Aug-2026)
    4,921
    Market Cap (Aug-2026)
    3.125 Billion USD
    World Rank (Jan-05-2024)
    10,102
    Market Cap (Jan-05-2024)
    0.754 Billion USD
    World Rank (Jul-30-2023)
    10,588
    Market Cap (Jul-30-2023)
    0.712 Billion USD
    World Rank (Dec-25-2022)
    11,386
    Market Cap (Dec-25-2022)
    0.588 Billion USD
    World Rank (Jan-07-2022)
    12,733
    Market Cap (Jan-07-2022)
    0.56 Billion USD
    Annual Revenue in USD
    825 Million USD
    Annual Operating Income in USD
    -36 Million USD
    Annual Net Income in USD
    -37 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ Frankfurt
    Company Profile
    Ducommun is a global provider of manufacturing and engineering services, developing innovative electronic, engineered and structural solutions for complex applications in aerospace, defense and industrial marketing company. The company annual revenue is 629 million USD and 2,450 employees as on 2020. The headquarters is in USA.
    Company Website
    DUCOMMUN
    Wikipedia
    Wikipedia

  10. California Water Service Group

    World Rank (Aug-2026)
    4,927
    Market Cap (Aug-2026)
    3.117 Billion USD
    World Rank (Jan-05-2024)
    4,427
    Market Cap (Jan-05-2024)
    2.957 Billion USD
    World Rank (Jul-30-2023)
    4,446
    Market Cap (Jul-30-2023)
    2.914 Billion USD
    World Rank (Dec-25-2022)
    3,738
    Market Cap (Dec-25-2022)
    3.387 Billion USD
    World Rank (Jan-07-2022)
    4,286
    Market Cap (Jan-07-2022)
    3.57 Billion USD
    Annual Revenue in USD
    964 Million USD
    Annual Operating Income in USD
    170 Million USD
    Annual Net Income in USD
    128 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile

    California Water Service Group is a Third Largest Publicly Traded Water Utility in the United States. It is providing high quality water and wastewater services to more than two million people in over 100 communities. The headquarters is in USA.

    Facts About Company

    California Water Service Group annual revenue was 846 million USD, annual operating income was 130 million USD and annual net income was 96 million USD for year ending Dec-2022.

    Company Website
    CALIFORNIA WATER SERVICE GROUP HOLDING

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