Illinois Top Companies List by Market Cap as of August 2026

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

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

  1. Ryerson Holding Corporation

    World Rank (Aug-2026)
    7,443
    Market Cap (Aug-2026)
    1.502 Billion USD
    World Rank (Jan-05-2024)
    7,940
    Market Cap (Jan-05-2024)
    1.140 Billion USD
    World Rank (Jul-30-2023)
    7,074
    Market Cap (Jul-30-2023)
    1.435 Billion USD
    World Rank (Dec-25-2022)
    7,810
    Market Cap (Dec-25-2022)
    1.127 Billion USD
    World Rank (Jan-07-2022)
    9,396
    Market Cap (Jan-07-2022)
    1.01 Billion USD
    Annual Revenue in USD
    4,571 Million USD
    Annual Operating Income in USD
    -31 Million USD
    Annual Net Income in USD
    -56 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile
    Ryerson Holding Corporation is a steel metal suppliers company. The company annual revenue is 5,675 million USD and annual net income is 294 million USD for year ending December 2021. The headquarters is in USA.
    Company Website
    RYERSON HOLDING CORPORATION

  2. Nuveen Nasdaq 100 Dynamic Overwrite Fund

    World Rank (Aug-2026)
    7,467
    Market Cap (Aug-2026)
    1.496 Billion USD
    World Rank (Jan-05-2024)
    8,131
    Market Cap (Jan-05-2024)
    1.095 Billion USD
    World Rank (Jul-30-2023)
    7,847
    Market Cap (Jul-30-2023)
    1.202 Billion USD
    World Rank (Dec-25-2022)
    8,574
    Market Cap (Dec-25-2022)
    0.962 Billion USD
    World Rank (Jan-07-2022)
    8,246
    Market Cap (Jan-07-2022)
    1.26 Billion USD
    Annual Revenue in USD
    220 Million USD
    Annual Net Income in USD
    219 Million USD
    Annual Results for Period Ending
    Dec-2021 ending year
    Headquarters Country
    USA
    Yahoo @ Nasdaq
    Company Website
    NUVEEN NASDAQ 100 DYNAMIC OVERWRITE FUND

  3. Stepan Company

    World Rank (Aug-2026)
    7,515
    Market Cap (Aug-2026)
    1.481 Billion USD
    World Rank (Jan-05-2024)
    5,616
    Market Cap (Jan-05-2024)
    2.035 Billion USD
    World Rank (Jul-30-2023)
    5,551
    Market Cap (Jul-30-2023)
    2.101 Billion USD
    World Rank (Dec-25-2022)
    4,779
    Market Cap (Dec-25-2022)
    2.411 Billion USD
    World Rank (Jan-07-2022)
    5,152
    Market Cap (Jan-07-2022)
    2.76 Billion USD
    Annual Revenue in USD
    2,332 Million USD
    Annual Operating Income in USD
    79 Million USD
    Annual Net Income in USD
    47 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile

    Stepan Company is a Chemical Manufacturing company. It is having more than 650 products and markets served is 20. It is an assessment of more than 5,500 publicly traded businesses that were evaluated on an array of sustainability criteria Stepan Company ranked 45. The company technical expertise and manufacturing network of 18 modern production facilities, across 11 countries that give its customers confidence in Stepan product quality and service. The headquarters is in USA.

    Company Website
    STEPAN COMPANY

  4. Green Thumb Industries

    World Rank (Aug-2026)
    7,523
    Market Cap (Aug-2026)
    1.479 Billion USD
    World Rank (Jan-05-2024)
    4,745
    Market Cap (Jan-05-2024)
    2.673 Billion USD
    World Rank (Jul-30-2023)
    6,554
    Market Cap (Jul-30-2023)
    1.615 Billion USD
    World Rank (Dec-25-2022)
    5,506
    Market Cap (Dec-25-2022)
    1.970 Billion USD
    World Rank (Jan-07-2022)
    3,425
    Market Cap (Jan-07-2022)
    4.74 Billion USD
    Annual Revenue in USD
    1,175 Million USD
    Annual Operating Income in USD
    138 Million USD
    Annual Net Income in USD
    114 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ Frankfurt
    Company Profile

    Green Thumb Industries is a National Cannabis Consumer Packaged Goods and Retailer company. The company annual revenue is $157.1 Million and positive net income is $9.6 Million. It included sales from 48 retail stores across ten states they are Connecticut, Florida, Illinois, Maryland, Massachusetts, Nevada, New Jersey, New York, Ohio and Pennsylvania. The headquarters is in USA.

    GTI has operations across 12 U.S. markets, employs approximately 1,700 people and serves hundreds of thousands of patients and customers annually.

    Company Website
    GREEN THUMB INDUSTRIES

  5. Alto Pharmacy

    World Rank (Aug-2026)
    7,693
    World Rank (Jan-05-2024)
    7,693
    World Rank (Jul-30-2023)
    7,693
    World Rank (Dec-25-2022)
    7,693
    World Rank (Jan-07-2022)
    7,693
    Headquarters Country
    USA
    Company Profile

    Alto Pharmacy is a Full Service Pharmacy company that delivers prescriptions. The company estimated annual revenue is currently 161.2 million USD per year. It is having 650 employees as on 2019. The headquarters is in USA.

    Company Website
    ALTO PHARMACY

  6. First Mid Bancshares

    World Rank (Aug-2026)
    7,785
    Market Cap (Aug-2026)
    1.384 Billion USD
    World Rank (Jan-05-2024)
    9,733
    Market Cap (Jan-05-2024)
    0.808 Billion USD
    World Rank (Jul-30-2023)
    11,335
    Market Cap (Jul-30-2023)
    0.627 Billion USD
    World Rank (Dec-25-2022)
    10,717
    Market Cap (Dec-25-2022)
    0.658 Billion USD
    World Rank (Jan-07-2022)
    10,615
    Market Cap (Jan-07-2022)
    0.81 Billion USD
    Annual Net Income in USD
    92 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ Nasdaq
    Company Profile
    First Mid Bancshares is a Bank Holding company. The company annual net income is 11.7 million USD and 827 employees as on 2019. It is having 4.5 billion USD community focused organization that provides a full suite of financial services including banking, wealth management, brokerage, ag services and insurance through a sizeable network of locations throughout Illinois and eastern Missouri and a loan production office in the greater Indianapolis area. The headquarters is in USA.
    Company Website
    FIRST MID BANCSHARES

  7. HBT Financial Inc.

    World Rank (Aug-2026)
    7,904
    Market Cap (Aug-2026)
    1.352 Billion USD
    World Rank (Jan-05-2024)
    10,897
    Market Cap (Jan-05-2024)
    0.661 Billion USD
    World Rank (Jul-30-2023)
    11,314
    Market Cap (Jul-30-2023)
    0.629 Billion USD
    World Rank (Dec-25-2022)
    11,651
    Market Cap (Dec-25-2022)
    0.563 Billion USD
    World Rank (Jan-07-2022)
    12,679
    Market Cap (Jan-07-2022)
    0.57 Billion USD
    Annual Net Income in USD
    77 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ Nasdaq
    Company Profile
    HBT Financial is a Bank Holding and Financial Services company needs of this community including the needs of low income to moderate income households. The company annual revenue is 34.5 million USD as on 2020. The headquarters is in USA.
    Company Website
    HBT FINANCIAL

  8. Old Second Bancorp

    World Rank (Aug-2026)
    8,014
    Market Cap (Aug-2026)
    1.318 Billion USD
    World Rank (Jan-05-2024)
    10,644
    Market Cap (Jan-05-2024)
    0.691 Billion USD
    World Rank (Jul-30-2023)
    10,555
    Market Cap (Jul-30-2023)
    0.716 Billion USD
    World Rank (Dec-25-2022)
    10,047
    Market Cap (Dec-25-2022)
    0.740 Billion USD
    World Rank (Jan-07-2022)
    11,986
    Market Cap (Jan-07-2022)
    0.64 Billion USD
    Annual Net Income in USD
    80 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ Nasdaq
    Company Website
    OLD SECOND BANCORP

  9. Oil-Dri Corporation of America

    World Rank (Aug-2026)
    8,034
    Market Cap (Aug-2026)
    1.309 Billion USD
    World Rank (Jan-05-2024)
    12,667
    Market Cap (Jan-05-2024)
    0.496 Billion USD
    World Rank (Jul-30-2023)
    13,348
    Market Cap (Jul-30-2023)
    0.455 Billion USD
    World Rank (Dec-25-2022)
    17,224
    Market Cap (Dec-25-2022)
    0.233 Billion USD
    World Rank (Jan-07-2022)
    17,569
    Market Cap (Jan-07-2022)
    0.26 Billion USD
    Annual Revenue in USD
    486 Million USD
    Annual Operating Income in USD
    68 Million USD
    Annual Net Income in USD
    54 Million USD
    Annual Results for Period Ending
    For year ending July-2025
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Website
    OIL-DRI CORPORATION OF AMERICA

  10. Heritage-Crystal Clean

    World Rank (Aug-2026)
    8,169
    World Rank (Jan-05-2024)
    8,169
    World Rank (Jul-30-2023)
    8,169
    Market Cap (Jul-30-2023)
    1.123 Billion USD
    World Rank (Dec-25-2022)
    9,739
    Market Cap (Dec-25-2022)
    0.778 Billion USD
    World Rank (Jan-07-2022)
    10,981
    Market Cap (Jan-07-2022)
    0.76 Billion USD
    Annual Revenue in USD
    682 Million USD
    Annual Operating Income in USD
    118 Million USD
    Annual Net Income in USD
    85 Million USD
    Annual Results for Period Ending
    For year ending December-2022
    Headquarters Country
    USA
    Company Profile

    Heritage-Crystal Clean is a leader in the environmental services market, and providing the smart alternative. It services are absorbents, antifreeze, aqua filtration systems, field services, oil services and re refinery products, parts cleaners, vacuum services and waste recovery services. The company annual revenue is 107.3 million USD and 1322 employees as on 2019. The headquarters is in USA.

    Company Website
    HERITAGE-CRYSTAL CLEAN

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