Toss Executive and Leadership Team

August, 2026

Leadership Overview

Toss has 7 executives leading key functions including strategy, corporate governance, financial oversight, operational scaling, fiscal management, finance excellence, and human capital development.

Driven by a commitment to frictionless mobile finance, Toss simplifies consumer banking through intuitive digital tools that transform how users borrow, pay, and manage funds across the Korean market.

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 - Angela 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, directs the overarching strategic vision for the mobile fintech platform. By prioritizing user-centric design, the Chief Executive Officer eliminates friction in consumer finance, enabling seamless borrowing and bill splitting. Lee Seung-gun architects the long-term growth trajectory, ensuring the platform remains the fastest-growing service in the sector. This leadership role involves constant innovation to replace archaic banking systems with modern, efficient digital solutions. By aligning product development with market needs, the Chief Executive Officer maintains a competitive edge in the Korean financial landscape. The executive oversees the integration of new financial products, ensuring that every feature simplifies the daily monetary interactions of millions. Through rigorous focus on operational excellence, the Chief Executive Officer drives the company toward sustained market dominance while fostering a culture of rapid, iterative improvement across all internal departments.

    Byungik Cho - CEO (대표이사)

    Byungik Cho, the CEO (대표이사) at Toss, manages corporate governance and high-level organizational stability. As the CEO (대표이사), Cho ensures that all business units adhere to strict regulatory standards while pursuing aggressive expansion goals. Byungik Cho oversees the alignment of internal processes with the broader mission of simplifying consumer finance. This role requires constant coordination with the board to secure the resources necessary for scaling mobile payment infrastructure. By optimizing corporate workflows, the CEO (대표이사) enhances the efficiency of the entire organization. The executive focuses on mitigating risks associated with rapid fintech growth, ensuring that the platform remains secure for all users. Through strategic oversight of administrative functions, the CEO (대표이사) supports the company in maintaining its position as a leader in the Korean financial sector. This leadership position demands a deep understanding of both technological innovation and traditional financial compliance to ensure long-term viability.
    Byungik Cho

    Hugh Seo - Chief Financial Officer

    Hugh Seo, the Chief Financial Officer at Toss, directs the fiscal strategy and capital allocation for the organization. Overseeing the financial health of the platform, the Chief Financial Officer ensures that all revenue streams from borrowing and payment services remain robust. Hugh Seo architects the budgeting processes that support the rapid development of new mobile features. This leadership role involves managing investor relations and ensuring transparency in all financial reporting. By analyzing market trends, the Chief Financial Officer identifies opportunities for sustainable growth within the Korean fintech ecosystem. The executive coordinates with other C-suite leaders to align spending with the company's core mission of frictionless finance. Through meticulous oversight of cash flow and investment portfolios, the Chief Financial Officer secures the capital required for continuous innovation. This role remains critical in maintaining the financial stability necessary to support millions of daily transactions across the entire user base.

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

    Kyle Seo, the Manager, Finance & Chief Financial Officer, Staff) at Toss, supports the financial planning and analysis functions of the company. By managing detailed financial reporting, the Manager, Finance & Chief Financial Officer, Staff) ensures that the leadership team has accurate data for strategic decision-making. Kyle Seo architects the financial models that track the performance of various consumer finance products. This role involves coordinating with the finance department to optimize resource allocation across different business units. By monitoring expenditure and revenue, the Manager, Finance & Chief Financial Officer, Staff) helps maintain the fiscal discipline required for long-term growth. The executive works closely with the Chief Financial Officer to ensure that all financial operations align with the company's broader goals. Through rigorous analysis of market data, the Manager, Finance & Chief Financial Officer, Staff) identifies potential cost-saving measures that improve the overall profitability of the platform's diverse financial services.

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

    Angela Lee, the Chief of Staff To Chief Financial Officer and Finance Excellence Team Leader at Toss, directs the coordination between the finance department and other executive functions. As the Chief of Staff To Chief Financial Officer and Finance Excellence Team Leader, Lee oversees the Finance Excellence Team to ensure that all accounting and reporting processes meet the highest standards. Angela Lee architects initiatives that improve the efficiency of financial operations, allowing the company to scale its services more effectively. This role involves managing the flow of information to the Chief Financial Officer, ensuring that critical financial insights reach the leadership team promptly. By fostering a culture of excellence within the finance department, the Chief of Staff To Chief Financial Officer and Finance Excellence Team Leader supports the company's mission of providing frictionless financial services. The executive plays a vital role in aligning financial strategy with the company's rapid growth objectives.

    Qha Kim - Chief Operating Officer

    Qha Kim, the Chief Operating Officer at Toss, executes the daily operational strategies that keep the mobile platform running efficiently. Overseeing the technical infrastructure and customer service workflows, the Chief Operating Officer ensures that every user interaction remains simple and frictionless. Qha Kim architects the internal systems that allow for rapid scaling of borrowing and bill-splitting services. This leadership role involves managing cross-functional teams to ensure that product updates reach the market without delay. By streamlining operational processes, the Chief Operating Officer reduces overhead and improves service delivery speed. The executive monitors performance metrics to identify bottlenecks in the user journey, implementing solutions that enhance overall satisfaction. Through constant collaboration with the engineering and product departments, the Chief Operating Officer maintains the high standards required for a leading fintech service. This role drives the operational excellence necessary to support the company's massive user base in Korea.
    Qha Kim

    Joohyung Shin - Chief People Officer, Staff

    Joohyung Shin, the Chief People Officer, Staff at Toss, directs the human capital strategy and organizational culture. Overseeing talent acquisition and employee development, the Chief People Officer, Staff ensures that the company attracts the best minds in the fintech industry. Joohyung Shin architects programs that foster innovation and collaboration across all departments. This leadership role involves managing performance evaluation systems and ensuring that the workforce remains aligned with the company's mission of simplifying consumer finance. By prioritizing employee engagement, the Chief People Officer, Staff creates an environment where rapid development and high-quality service delivery thrive. The executive works with other leaders to build a diverse and inclusive workplace that supports the company's long-term goals. Through strategic workforce planning, the Chief People Officer, Staff ensures that the organization has the necessary talent to maintain its position as a leader in the competitive Korean financial market.

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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.