E*TRADE: Known for its user-friendly platforms and research tools.

    Charles Schwab: Offers a range of investment options and tools.

    TD Ameritrade: Provides a variety of trading platforms and educational resources.

    Fidelity: Offers a wide range of investment products and research tools.

    Interactive Brokers: Known for its low-cost trading and international access.

    Robinhood: Popular for its commission-free trading (please note that this information is based on my knowledge up to September 2021 and may not reflect the company's current status).

    Ally Invest: Known for competitive pricing and a user-friendly platform.

    Merrill Edge: A subsidiary of Bank of America, offering integration with Bank of America accounts.

    TradeStation: Offers advanced trading tools and analytics.

    Webull: Known for its commission-free trading and user-friendly app.

    Firstrade: Offers commission-free trading and no account minimums.

    IG Group: A UK-based broker known for its international presence.

    Mitrade: A CFD broker with a focus on low-cost trading.

    Tastyworks: Focused on options and futures trading, known for its low commissions.

    Questrade: A Canadian broker with a focus on low-cost trading.

    Saxo Bank: Offers a wide range of international trading and investment opportunities.

    Degiro: A European broker with competitive fees.

    Thinkorswim (by TD Ameritrade): Offers an advanced trading platform with a wide range of tools.