The stock trading companies industry in the US is characterized by organizations that facilitate the buying and selling of various financial instruments. Firms range from traditional brokers to innovative fintech companies, each offering diverse services like online trading platforms, market insights, and investment advice. As technology develops, the industry leans more towards automated trading solutions and client-focused platforms, making investing easier and more accessible. This shift is based on growing investor demand for cost-effective options, such as zero-commission trading and educational resources, indicating a future driven by user empowerment and technological advancement.

The companies in this list vary significantly in size and specialization. With headquarters ranging from New York to Chicago and employee count from fewer than 50 to more than 5,000, they reflect a mixture of old and new paradigms in finance. Established as early as 1977 or as recently as 2017, these firms provide products from stocks to options and futures. Each company's unique approach to trading speaks to its understanding of market dynamics, giving clients superior support and tools to navigate their investments effectively.

Continue reading to discover the top stock trading companies in the US.

Top 21 Stock Trading Companies Companies in the US

1. TradeStation

• Website: tradestation.com
• Ownership type: Corporate
• Headquarters: Plantation, Florida, United States (USA)
• Employee distribution: United States (USA) 65%, Costa Rica 28%, Other 7%
• Latest funding: $411.0M, June 2011
• Founded year: 1982
• Headcount: 501-1000
• LinkedIn: tradestation

TradeStation Group, Inc., based in Plantation, Florida, is an online brokerage and financial services firm that specializes in providing a wide array of trading products and platforms. Founded in 1982, TradeStation has built a reputation for its advanced technology, which supports strategy development and execution for both individual and institutional clients. The company offers trading in stocks, options, futures, and ETFs, making it a versatile choice for traders. With a workforce of approximately 1,149 employees, the company has a significant presence in the market. TradeStation also emphasizes education and support for its clients, providing resources for both novice and experienced traders. The firm has received substantial funding, amounting to $411 million, which underscores its growth potential and commitment to enhancing its trading platforms and services.

2. Merrill Edge

• Website: merrilledge.com
• Ownership type: Private
• Headquarters: Chicago, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2010
• Headcount: 1001-5000
• LinkedIn: merrill-edge

Merrill Edge, founded in 2010 and based in Chicago, Illinois, is an investment platform and financial advisory service that operates as a subsidiary of Bank of America. The company provides a wide array of investment products, including stocks, bonds, and ETFs, catering primarily to individual investors and businesses. Merrill Edge offers both self-directed and guided investment options, allowing clients to choose how they want to manage their investments. The platform is designed to assist the mass affluent market, helping clients navigate their investment journeys effectively. With a focus on user-friendly tools and resources, Merrill Edge aims to empower investors with insights and education, making it easier for them to make informed decisions. The company has established itself as a significant player in the investment advisory space, leveraging the backing of Bank of America to enhance its service offerings and client trust.

3. Webull Financial

• Website: webull.com
• Ownership type: Private
• Headquarters: New York, New York, United States (USA)
• Employee distribution: United States (USA) 94%, China 4%, Other 2%
• Founded year: 2017
• Headcount: 51-200
• LinkedIn: webullfinancialllc

Webull Financial LLC is a private trading platform based in New York, established in 2017. It specializes in commission-free trading of stocks, options, ETFs, and futures, catering primarily to individual investors and traders. The platform is accessible through both mobile and desktop applications, providing users with a seamless trading experience. Webull offers a variety of investment products, including margin trading and fractional shares, which allow users to tailor their investment strategies. The company also emphasizes education, offering resources to help users enhance their trading knowledge. Webull is registered with the Securities and Exchange Commission (SEC) and is a member of the Financial Industry Regulatory Authority (FINRA) and the Securities Investor Protection Corporation (SIPC), ensuring a level of regulatory oversight and customer protection. Its partnerships with notable organizations such as Nasdaq and Cboe further solidify its position in the trading industry.

4. tastyworks

• Website: tastyworks.com
• Ownership type: Private
• Headquarters: Chicago, Illinois, United States (USA)
• Founded year: 2017
• Headcount: 201-500
• LinkedIn: tastyworks

Tastyworks, now operating under the name tastytrade, Inc., is a brokerage firm based in Chicago, Illinois. Founded in 2017, the company was established by industry veterans Scott Sheridan and Tom Sosnoff, who previously co-founded thinkorswim. Tastytrade aims to provide individual traders with the tools and resources necessary to manage their investments effectively. The platform supports trading in various financial instruments, including stocks, options, futures, and cryptocurrencies. Tastytrade is known for its competitive pricing structure, which is designed to facilitate easier trading decisions for its users. The firm places a strong emphasis on customer support and education, offering resources to help traders enhance their skills and knowledge. With a team that has extensive experience in the trading industry, tastytrade is committed to creating a user-friendly environment that empowers traders to take control of their financial futures.

5. tastytrade

• Website: tastytrade.com
• Ownership type: Corporate
• Headquarters: Chicago, Illinois, United States (USA)
• Employee distribution: United States (USA) 93%, United Kingdom (UK) 2%, Indonesia 2%, Other 3%
• Latest funding: $1.0B, January 2021
• Founded year: 2017
• Headcount: 201-500
• LinkedIn: tastyworks

Tastytrade, Inc. is a Chicago-based brokerage firm founded in 2017, dedicated to serving individual retail investors. The company offers a comprehensive trading platform that includes a variety of financial products such as stocks, options, futures, and cryptocurrencies. Tastytrade is known for its competitive pricing structure, which features low commissions, making it an attractive option for active traders. The firm prides itself on its advanced trading technology and user-friendly interface, which allows investors to manage their portfolios effectively. With a team of experienced professionals who have a background in physical trading, tastytrade aims to empower traders by providing the tools and support necessary for independent trading. The company has also received significant funding, amounting to $1 billion, which underscores its growth potential and commitment to enhancing its services. Tastytrade's focus on education and transparency further positions it as a relevant player in the stock trading industry.

6. Susquehanna International Group

• Website: sig.com
• Ownership type: Private
• Headquarters: Bala Cynwyd, Pennsylvania, United States (USA)
• Employee distribution: United States (USA) 58%, Ireland 26%, Australia 12%, Other 5%
• Founded year: 1987
• Headcount: 1001-5000
• LinkedIn: susquehanna-international-group-llp-sig

Susquehanna International Group (SIG), founded in 1987, is a private trading firm based in Bala Cynwyd, Pennsylvania. With approximately 3,394 employees, SIG operates globally, providing a range of services that include options trading, market making, and venture capital. The firm is particularly known for its expertise in quantitative trading, where it employs advanced algorithms and data-driven strategies to execute trades across various asset classes. SIG is a major participant in the options market, recognized as one of the largest market makers for exchange-listed equity, index, and ETF options. Additionally, the firm engages in trading activities across equities, fixed income, foreign exchange, and commodities, showcasing its broad market engagement. SIG also has a growing presence in the cryptocurrency market, trading various digital assets. The company emphasizes a culture of collaboration and decision science, integrating game theory into its training and operational strategies, which enhances its trading effectiveness and risk management capabilities.

7. DriveWealth

• Website: drivewealth.com
• Ownership type: Venture Capital
• Headquarters: New York, New York, United States (USA)
• Employee distribution: United States (USA) 97%, Other 3%
• Latest funding: Series D, $450.0M, August 2021
• Founded year: 2012
• Headcount: 201-500
• LinkedIn: drivewealth

DriveWealth, founded in 2012 and based in New York, is a financial services company that specializes in providing a Brokerage-as-a-Service platform. This platform enables partners such as banks, broker-dealers, asset managers, and consumer brands to offer trading and investment solutions to their clients. DriveWealth's offerings include self-directed trading, advisory services, and access to a variety of financial products, including equities, ETFs, and mutual funds. The company has pioneered fractional share investing, allowing clients to invest with as little as $1, thus democratizing access to the stock market. With a workforce of approximately 319 employees, DriveWealth has established a global presence, serving clients across the US, Latin America, EMEA, and APAC. The firm raised $450 million in a Series D funding round in August 2021, reflecting its growth trajectory and the increasing demand for its services in the financial technology space.

8. Jane Street

• Website: janestreet.com
• Ownership type: Private
• Headquarters: New York, New York, United States (USA)
• Employee distribution: United States (USA) 61%, United Kingdom (UK) 22%, Hong Kong S.A.R 14%, Other 3%
• Founded year: 2000
• Headcount: 1001-5000
• LinkedIn: jane-street-asia-limited

Jane Street is a private trading firm based in New York, founded in 2000. The company specializes in proprietary trading and market-making, providing liquidity and trading solutions to institutional clients such as asset managers and insurance companies. With a workforce of approximately 2,770 employees, Jane Street operates globally, trading across various asset classes and venues. The firm is recognized for its expertise in quantitative analysis and technology, employing advanced techniques like machine learning to enhance its trading strategies. Jane Street has built a reputation for its ability to navigate complex markets and provide competitive pricing, making it a key player in the financial industry. The firm has no reported funding, indicating a self-sustaining business model that relies on its trading operations and expertise.

9. Jump Trading Group

• Website: jumptrading.com
• Ownership type: Private
• Headquarters: Chicago, Illinois, United States (USA)
• Employee distribution: United States (USA) 59%, United Kingdom (UK) 20%, Singapore 9%, Other 12%
• Founded year: 1999
• Headcount: 1001-5000
• LinkedIn: jump-trading-llc

Jump Trading Group, founded in 1999 and headquartered in Chicago, Illinois, is a private trading firm that specializes in algorithmic and high-frequency trading strategies. With a workforce of over 1,500 employees, the company operates across various financial markets, including futures, options, and cryptocurrencies. Jump Trading is dedicated to leveraging cutting-edge technology and extensive research to deliver efficient trading solutions tailored for institutional investors and trading firms. Their involvement in the cryptocurrency space through Jump Crypto further illustrates their adaptability and forward-thinking approach in a rapidly evolving market. The firm has established a global presence with offices in key financial hubs such as New York, London, Singapore, and Hong Kong, reflecting their commitment to serving a broad client base and staying at the forefront of trading innovation.

10. thinkorswim

• Website: thinkorswim.com
• Ownership type: Corporate
• Headquarters: Chicago, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: $600.0M, January 2009
• Founded year: 1999
• Headcount: 51-200
• LinkedIn: thinkorswim

thinkorswim, founded in 1999 and based in Chicago, Illinois, is a trading platform that offers a comprehensive suite of financial services. It caters to individual investors by providing access to stock, options, futures, and forex trading. The platform is recognized for its sophisticated market data, investment management tools, and educational resources designed to enhance the trading experience. thinkorswim operates under the umbrella of Charles Schwab, which allows it to leverage Schwab's extensive resources and infrastructure. This affiliation strengthens its position in the market, making it a significant player in the stock trading sector.

11. Pioneers Securities

• Website: pioneers-securities.com
• Ownership type: Private
• Headquarters: United States (USA)
• Employee distribution: Egypt 100%
• Founded year: 1997
• Headcount: 201-500
• LinkedIn: pioneerssecurities

Pioneers Securities is a financial services company founded in 1997, specializing in securities brokerage and investment management. The firm provides individual investors and businesses with access to trading platforms and market statistics, enabling them to navigate financial markets effectively. With a workforce of approximately 179 employees, all located in Egypt, Pioneers Securities focuses on delivering tailored investment opportunities and facilitating trades. The company emphasizes its commitment to helping clients make informed investment decisions through comprehensive market analysis and statistics. Although it has not reported any recent funding, its long-standing presence in the industry suggests a solid operational foundation and a commitment to serving its clientele.

12. Citadel Securities

• Website: citadelsecurities.com
• Ownership type: Venture Capital
• Headquarters: Miami, Florida, United States (USA)
• Employee distribution: United States (USA) 70%, United Kingdom (UK) 13%, Hong Kong S.A.R 7%, Other 10%
• Latest funding: $1.1B, January 2022
• Founded year: 2002
• Headcount: 1001-5000
• LinkedIn: citadel-securities

Citadel Securities LLC, founded in 2002 and based in Miami, Florida, operates as a market-making firm that specializes in providing liquidity and trade execution services across multiple asset classes, including equities, options, fixed income, and foreign exchange. The company serves a wide range of clients, from retail investors to large institutional entities, ensuring that they can trade efficiently and access the markets reliably. Citadel Securities is recognized for its innovative approach, leveraging advanced technology and quantitative research to enhance market efficiency. The firm has made significant strides in the industry, being the top market maker in U.S. retail options and equities, and executing an impressive volume of trades daily. In January 2022, Citadel Securities secured $1.15 billion in funding, further solidifying its position in the market. With a workforce of over 2,000 employees, the company is committed to attracting top talent and fostering a collaborative environment that drives operational excellence.

13. Sogotrade, INC.

• Website: sogotrade.com
• Ownership type: Corporate
• Headquarters: Chesterfield, Missouri, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: September 2016
• Founded year: 1986
• Headcount: 51-200
• LinkedIn: sogotrade-inc-

Sogotrade, INC., based in Chesterfield, Missouri, is an online brokerage and investment management firm founded in 1986. The company specializes in providing trading services for stocks, options, and cryptocurrencies, targeting individual investors who prioritize low-cost trading solutions. Sogotrade offers a variety of tools and platforms to facilitate effective investment management. Their 'Get Paid to Trade' initiative rewards customers for trading, which can enhance user engagement and satisfaction. The firm also provides asset management services through dedicated financial advisors, helping clients to identify investment goals and build tailored portfolios. With a workforce of approximately 35 employees, Sogotrade operates solely within the United States, ensuring a focused approach to its customer base. The absence of recent funding rounds suggests a stable operational model, relying on its established business practices rather than external financial support.

14. Tower Research Capital

• Website: tower-research.com
• Ownership type: Private
• Headquarters: New York, New York, United States (USA)
• Employee distribution: United States (USA) 33%, India 31%, Singapore 12%, Other 24%
• Founded year: 1998
• Headcount: 1001-5000
• LinkedIn: tower-research-capital

Tower Research Capital, founded in 1998 and based in New York City, is a quantitative trading firm that operates at the intersection of finance and technology. The company specializes in providing advanced trading strategies and engineering support to institutional investors and traders. With a workforce of over 1,200 employees distributed across multiple countries, including the United States, India, and Singapore, Tower Research Capital has established a global presence. The firm is known for its robust technology platform, which supports a variety of trading strategies across different asset classes. Tower's culture emphasizes innovation and results, fostering an environment where quantitative traders can thrive. The firm also engages in liquidity provision and has a ventures arm that invests in technology-driven companies, further solidifying its role in the financial services industry.

15. Firstrade Securities Inc.

• Website: firstrade.com
• Ownership type: Private
• Headquarters: Queens, New York, United States (USA)
• Employee distribution: United States (USA) 97%, Mexico 3%
• Founded year: 1985
• Headcount: 51-200
• LinkedIn: firstrade-securities-inc-

Firstrade Securities Inc., based in Queens, New York, is a private online brokerage firm founded in 1985. The company specializes in providing individual investors with a platform to trade a variety of investment products, including stocks, options, and mutual funds. Firstrade distinguishes itself by offering commission-free trading, which allows clients to invest without incurring additional costs. The firm emphasizes making investing accessible and affordable, catering to a broad audience of self-directed investors. With a workforce of approximately 77 employees, Firstrade has developed a suite of trading tools and educational resources aimed at enhancing the trading experience. The company is a member of FINRA and SIPC, ensuring a level of regulatory oversight and investor protection. Over the years, Firstrade has built a reputation for its customer service and innovative trading technology, positioning itself as a reliable option for those looking to manage their investments independently.

16. Benzinga

• Website: benzinga.com
• Ownership type: Private Equity
• Headquarters: Detroit, Michigan, United States (USA)
• Employee distribution: United States (USA) 80%, India 8%, Pakistan 3%, Other 9%
• Latest funding: October 2021
• Founded year: 2010
• Headcount: 51-200
• LinkedIn: benzinga

Benzinga, founded in 2010 and based in Detroit, Michigan, operates as a financial services and media company. It specializes in providing market insights, trading ideas, and timely news to both individual investors and financial professionals. The company offers a suite of products, including Benzinga Pro and Benzinga Edge, which are designed to deliver real-time information and analysis. These tools help users navigate the complexities of the stock market and make informed investment decisions. Benzinga's commitment to delivering actionable market intelligence has made it a notable player in the financial services sector, catering to a clientele that seeks to enhance their trading strategies and investment outcomes.

17. NinjaTrader

• Website: ninjatrader.com
• Ownership type: Corporate
• Headquarters: Chicago, Illinois, United States (USA)
• Employee distribution: United States (USA) 93%, Other 7%
• Latest funding: $1.5B, March 2025
• Founded year: 2004
• Headcount: 201-500
• LinkedIn: ninjatrader-group-llc

NinjaTrader, founded in 2004 and based in Chicago, Illinois, is a trading platform and brokerage service that primarily focuses on futures trading. The company supports a vast community of over 800,000 traders worldwide, providing them with advanced tools for charting, strategy backtesting, and a free trading simulator. NinjaTrader caters to both individual and institutional traders, offering a range of educational resources and real-time market data to enhance trading strategies. Their platform is designed to be user-friendly, allowing traders to customize their experience and access a variety of market visualization tools. The company also emphasizes risk management and trading plans, making it a comprehensive resource for traders looking to improve their skills and strategies. NinjaTrader's ongoing commitment to innovation and support has solidified its position in the trading industry.

18. Interactive Brokers

• Website: ibkr.com
• Ownership type: Private
• Headquarters: United States (USA)
• Employee distribution: United States (USA) 42%, India 24%, Hong Kong S.A.R 5%, Other 28%
• Founded year: 1977
• Headcount: 1001-5000
• LinkedIn: interactive-brokers

Interactive Brokers LLC is a brokerage firm based in the United States, founded in 1977. It serves individual and institutional investors by offering a comprehensive trading platform that includes a wide range of financial products such as stocks, options, and bonds. The firm is known for its advanced trading technology, which enhances the trading experience for its clients. Interactive Brokers caters to a variety of customers, including individual traders, hedge funds, and financial advisors, all seeking efficient and cost-effective trading solutions. The company has a significant global presence, with operations in multiple countries and a workforce that spans several regions, including the United States and India. Its commitment to providing low-cost trading options and a powerful suite of trading tools has earned it recognition in the industry.

19. AMP Futures

• Website: ampfutures.com
• Ownership type: Venture Capital
• Headquarters: Chicago, Illinois, United States (USA)
• Employee distribution: United States (USA) 44%, Germany 22%, Italy 11%, Other 22%
• Latest funding: Seed, $5.6M, May 2022
• Founded year: 2009
• Headcount: 11-50
• LinkedIn: amp-global-us

AMP Futures, officially known as AMP Global Clearing LLC, is a financial services provider based in Chicago, Illinois. Founded in 2009, the company specializes in futures trading, offering a range of trading platforms and automated trading strategies tailored for individual traders and investors. With a commitment to low-cost trading and exceptional customer support, AMP Futures aims to make the futures market accessible to a broad audience. The firm has received funding, with a notable seed round of $5.6 million in May 2022, indicating investor confidence in its business model and growth potential. AMP Futures is regulated by the National Futures Association and the Commodity Futures Trading Commission, ensuring compliance and reliability in its operations. The company also provides educational resources and support to help clients navigate the complexities of futures trading, further solidifying its position in the industry.

20. ThinkMarkets

• Website: thinkmarkets.com
• Ownership type: Private
• Headquarters: Chicago, Illinois, United States (USA)
• Employee distribution: Bulgaria 35%, United Arab Emirates 20%, Cyprus 11%, Other 34%
• Latest funding: Other (Debt), $30.0M, November 2021
• Founded year: 2010
• Headcount: 201-500
• LinkedIn: thinkmarkets

ThinkMarkets, founded in 2010 and based in Chicago, Illinois, is a private financial services provider that specializes in online trading. The company caters primarily to individual traders and investors, offering a wide range of trading opportunities across various asset classes, including Forex, commodities, indices, stocks, ETFs, and cryptocurrencies. ThinkMarkets is known for its advanced trading platforms, such as ThinkTrader, which features innovative tools and real-time data to enhance the trading experience. The company also emphasizes education through its ThinkMarkets Academy, providing resources for traders at all levels. With a workforce of around 208 employees and a significant presence in multiple countries, including Bulgaria, the UAE, and Australia, ThinkMarkets is well-positioned in the financial services industry. The company secured $30 million in funding in November 2021, reflecting its commitment to growth and development in the competitive trading landscape.

21. Phillip Capital Inc.

• Website: phillipcapital.com
• Ownership type: Private
• Headquarters: Chicago, Illinois, United States (USA)
• Employee distribution: Malaysia 32%, United States (USA) 22%, India 20%, Other 26%
• Founded year: 2010
• Headcount: 11-50
• LinkedIn: phillipcapital

Phillip Capital Inc., founded in 2010 and based in Chicago, Illinois, operates as a private brokerage firm. The company specializes in providing execution, clearing, and settlement services for stocks and options, catering primarily to sophisticated and institutional investors. With a workforce of approximately 288 employees, Phillip Capital Inc. emphasizes personalized support and advanced trading solutions. They are a self-clearing broker-dealer, which allows them to manage their own transactions and provide a more streamlined service to their clients. The firm is a member of FINRA and SIPC, and it is regulated by the U.S. Securities and Exchange Commission and the Commodity Futures Trading Commission. Their global presence is notable, with a significant portion of their workforce located in Malaysia, India, Singapore, and Thailand, reflecting their international reach and operational capabilities.

Stock Trading Companies Insights: Key Companies in the US

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