Toss Executive and Leadership Team

July, 2026

Leadership Overview

Toss has 7 executives leading key functions including strategy, operations, finance, and people.

Driven by a commitment to innovation, Toss delivers consumer finance on mobile, simplifying borrowing, bill payments, and everyday transactions across Korea with a frictionless user experience.

Leadership Roles at Toss

  • Chief Executive Officer - Lee Seung-gun
  • CEO (대표이사) - Byungik Cho
  • Chief Financial Officer - Hugh Seo
  • Manager, Finance & Chief Financial Officer, Staff) - Kyle Seo
  • Chief of Staff To Chief Financial Officer and Finance Excellence Team Leader - JungHwan Lee
  • Chief Operating Officer - Qha Kim
  • Chief People Officer, Staff - Joohyung Shin
  • Lee Seung-gun - Chief Executive Officer

    Lee Seung-gun, the Chief Executive Officer at Toss, architects the company's strategic direction and overall vision. Overseeing all major business units, Lee Seung-gun drives the expansion of Toss's fintech services, ensuring they remain simple and frictionless for consumers in Korea. This leadership role involves guiding product development and market penetration strategies to maintain Toss's position as the world's fastest-growing fintech service. Lee Seung-gun's focus remains on transforming the archaic web and mobile banking landscape through continuous innovation and user-centric design. The Chief Executive Officer ensures operational alignment with the company's core mission of delivering accessible financial solutions. By championing new initiatives, Lee Seung-gun directly impacts the company's rapid growth trajectory and its market leadership in digital finance. Ultimately, Lee Seung-gun secures the long-term viability and competitive edge of Toss in the dynamic fintech sector.

    Byungik Cho - CEO (대표이사)

    Byungik Cho, the CEO (대표이사) at Toss, executes the company's operational strategies and manages day-to-day business activities. Cho directs the implementation of Toss's consumer finance solutions, focusing on borrowing, bill repayment, and transaction services across Korea. This leadership position involves optimizing the user experience to ensure simplicity and frictionless engagement for all customers. Byungik Cho oversees the integration of new features and services, reinforcing Toss's commitment to modernizing financial interactions. The CEO (대표이사) ensures that all operational departments function cohesively to support the company's rapid growth and market expansion. Through diligent oversight of operational efficiency, Byungik Cho directly contributes to the seamless delivery of financial services. Ultimately, Cho solidifies Toss's reputation for reliability and innovation in the competitive fintech industry.
    Byungik Cho

    Hugh Seo - Chief Financial Officer

    Hugh Seo, the Chief Financial Officer at Toss, directs the company's financial planning, risk management, and investment strategies. Seo oversees all fiscal operations, ensuring robust financial health and sustainable growth for Toss's expanding fintech services. This critical role involves managing capital allocation, optimizing financial performance, and maintaining strong relationships with investors and financial institutions. The Chief Financial Officer guides the company's financial reporting and compliance, adhering to stringent regulatory standards within the finance sector. Hugh Seo's strategic financial insights are crucial for navigating market complexities and supporting the company's ambitious expansion plans. By ensuring fiscal discipline and strategic investment, Seo directly impacts Toss's ability to innovate and scale its operations. Ultimately, Hugh Seo safeguards the financial integrity and long-term economic stability of the organization.

    Kyle Seo - Manager, Finance & Chief Financial Officer, Staff)

    Kyle Seo, the Manager, Finance & Chief Financial Officer, Staff) at Toss, supports the strategic financial initiatives and operational finance functions. Seo assists in managing the company's financial planning, budgeting, and reporting processes, contributing to Toss's overall fiscal health. This role involves collaborating closely with the Chief Financial Officer to ensure accurate financial data and compliance with industry regulations. The Manager, Finance & Chief Financial Officer, Staff) plays a part in optimizing financial performance and supporting investment decisions. Kyle Seo's contributions are essential for maintaining the integrity of financial operations and facilitating informed strategic planning. By ensuring meticulous financial management, Seo directly supports the company's growth objectives and its mission to provide frictionless fintech services. Ultimately, Kyle Seo reinforces the financial stability and operational efficiency of Toss.

    JungHwan Lee - Chief of Staff To Chief Financial Officer and Finance Excellence Team Leader

    JungHwan Lee, the Chief of Staff To Chief Financial Officer and Finance Excellence Team Leader at Toss, bridges strategic financial planning with operational execution. Lee supports the Chief Financial Officer in driving financial excellence across the organization, ensuring alignment with Toss's growth objectives. This role involves coordinating key financial projects, enhancing reporting mechanisms, and fostering best practices within the finance department. The Chief of Staff To Chief Financial Officer and Finance Excellence Team Leader facilitates communication and collaboration between finance teams and other business units. JungHwan Lee's efforts are critical for streamlining financial processes and supporting data-driven decision-making. By ensuring efficient project management and operational improvements, Lee directly contributes to the company's financial agility. Ultimately, JungHwan Lee enhances the effectiveness and strategic impact of Toss's financial operations.

    Qha Kim - Chief Operating Officer

    Qha Kim, the Chief Operating Officer at Toss, drives operational excellence and manages the execution of the company's service delivery across Korea. Kim oversees the seamless functioning of Toss's core fintech services, including borrowing, bill splitting, and payment systems, ensuring a simple and frictionless user experience. This leadership role involves optimizing internal processes and enhancing operational efficiency to support rapid user growth. The Chief Operating Officer ensures that all operational departments align with the company's strategic objectives and maintain high standards of service quality. Qha Kim's focus on operational scalability is vital for accommodating the increasing demand for Toss's innovative financial solutions. By streamlining operations and fostering efficiency, Kim directly contributes to the company's ability to deliver on its promise of modern, accessible finance. Ultimately, Qha Kim solidifies Toss's operational capacity and market responsiveness.
    Qha Kim

    Joohyung Shin - Chief People Officer, Staff

    Joohyung Shin, the Chief People Officer, Staff at Toss, leads human capital strategy and organizational development to support the company's rapid expansion. Shin oversees talent acquisition, employee engagement, and culture initiatives, ensuring Toss attracts and retains top talent in the competitive fintech sector. This role is pivotal in fostering a dynamic and inclusive work environment that aligns with Toss's innovative spirit. The Chief People Officer, Staff) champions programs that enhance employee well-being and professional growth, crucial for maintaining high performance. Joohyung Shin's strategic approach to people management is fundamental to scaling the organization effectively and supporting its mission of delivering frictionless financial services. By cultivating a strong workforce, Shin directly contributes to Toss's ability to innovate and execute its business objectives. Ultimately, Joohyung Shin ensures that Toss has the human capital necessary for sustained success and market leadership.
    Joohyung Shin

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    Frequently Asked Questions Regarding Toss Top Executives and Leadership Team

    Who leads Toss?
    Toss is led by Lee Seung-gun (Chief Executive Officer), along with executives such as Byungik Cho (CEO (대표이사)) and Hugh Seo (Chief Financial Officer).
    Who is part of Toss’s executive team?
    The executive team of Toss includes leaders such as Lee Seung-gun (Chief Executive Officer), Byungik Cho (CEO (대표이사)), Hugh Seo (Chief Financial Officer) and other senior executives.
    How many executives does Toss have?
    Toss has 7 executives leading key business areas.
    What roles are included in Toss’s leadership team?
    The leadership team of Toss includes roles such as Chief Executive Officer, CEO (대표이사), Chief Financial Officer, Manager, Finance & Chief Financial Officer, Staff), Chief of Staff To Chief Financial Officer and Finance Excellence Team Leader.