Simpson Thacher Executive and Leadership Team

July, 2026

Leadership Overview

Simpson Thacher has 5 executives leading key functions including operations, finance, information technology, and human resources.

Driven by a commitment to excellence, Simpson Thacher provides coordinated legal advice and transactional capability, shaping international legal practice since its establishment in 1884.

Leadership Roles at Simpson Thacher

  • Chief Financial Officer - Matthew Garman
  • Chief Operating Officer - Kelly Stevens
  • Chief Information Officer - Willis Gee
  • Chief Human Resources Officer - Edina Jung
  • Chief Human Resources Officer - Eric Edelson
  • Matthew Garman - Chief Financial Officer

    Matthew Garman, the Chief Financial Officer at Simpson Thacher, manages the firm's financial strategy and fiscal operations. Garman directs all aspects of financial planning, budgeting, and reporting, ensuring robust financial health and compliance with international fiscal regulations. This critical role involves overseeing investment strategies and managing capital resources to support the firm's transactional capabilities and global expansion initiatives. By maintaining stringent financial controls and driving fiscal discipline, Matthew Garman ensures the firm's sustained profitability and its ability to provide coordinated legal advice. The Chief Financial Officer's leadership is essential for navigating the economic complexities inherent in international law practice, reinforcing the firm's stability since its founding in 1884. Garman's financial acumen directly supports the firm's capacity to undertake large-scale transactions and maintain its premier market standing.
    Matthew Garman

    Kelly Stevens - Chief Operating Officer

    Kelly Stevens, the Chief Operating Officer at Simpson Thacher, directs the firm's operational infrastructure and administrative functions. Stevens oversees the strategic implementation of business processes, ensuring seamless integration across all departments to support the firm's global legal advisory services. This leadership role involves optimizing resource allocation and enhancing operational efficiency to meet the complex demands of international transactions and client services. By focusing on scalable operational frameworks, Stevens directly contributes to the firm's capacity for delivering coordinated legal advice. The Chief Operating Officer ensures that the firm's internal systems and support functions align with its long-standing reputation for excellence, established in 1884. Stevens's oversight extends to managing the day-to-day activities that underpin the firm's transactional capabilities, reinforcing its market position.

    Willis Gee - Chief Information Officer

    Willis Gee, the Chief Information Officer at Simpson Thacher, architects the firm's technology strategy and digital infrastructure. Gee directs the implementation and management of advanced IT systems, ensuring secure and efficient data management to support global legal operations. This leadership position involves driving innovation in information technology, enhancing the firm's transactional capabilities and client service delivery. By leveraging cutting-edge technology, Willis Gee ensures the firm's competitive edge in providing coordinated legal advice across international markets. The Chief Information Officer's focus on cybersecurity and technological advancement is paramount to protecting sensitive client information and maintaining operational continuity. Gee's strategic vision for information systems directly supports the firm's mission, reinforcing its technological prowess since its establishment in 1884.
    Willis Gee

    Edina Jung - Chief Human Resources Officer

    Edina Jung, the Chief Human Resources Officer at Simpson Thacher, leads the firm's talent management and organizational development initiatives. Jung oversees the strategic direction of human resources, focusing on attracting, retaining, and developing top legal and professional talent essential for the firm's international operations. This role involves cultivating a high-performance culture that supports the firm's commitment to providing coordinated legal advice and transactional capability. By championing employee engagement and professional growth, Edina Jung ensures the firm's workforce is equipped to meet evolving client needs. The Chief Human Resources Officer's leadership is integral to fostering an environment that aligns with the firm's long-standing reputation for excellence. Jung's strategic HR approach directly supports the firm's capacity to deliver exceptional legal services.

    Eric Edelson - Chief Human Resources Officer

    Eric Edelson, the Chief Human Resources Officer at Simpson Thacher, spearheads the firm's human capital strategy and employee relations. Edelson directs programs focused on talent acquisition, compensation, and benefits, ensuring the firm attracts and retains premier legal professionals globally. This position involves fostering a supportive and inclusive work environment that underpins the firm's capacity for delivering coordinated legal advice and transactional capability. By optimizing HR policies and practices, Eric Edelson enhances the firm's ability to support its attorneys and staff effectively. The Chief Human Resources Officer's strategic oversight is crucial for aligning human resources with the firm's overarching business objectives and its commitment to client success. Edelson's dedication to employee well-being directly contributes to the firm's operational strength and its enduring legacy.

    Frequently Asked Questions Regarding Simpson Thacher Top Executives and Leadership Team

    Who leads Simpson Thacher?
    Simpson Thacher is led by Matthew Garman (Chief Financial Officer), along with executives such as Kelly Stevens (Chief Operating Officer) and Willis Gee (Chief Information Officer).
    Who is part of Simpson Thacher’s executive team?
    The executive team of Simpson Thacher includes leaders such as Matthew Garman (Chief Financial Officer), Kelly Stevens (Chief Operating Officer), Willis Gee (Chief Information Officer) and other senior executives.
    How many executives does Simpson Thacher have?
    Simpson Thacher has 5 executives leading key business areas.
    What roles are included in Simpson Thacher’s leadership team?
    The leadership team of Simpson Thacher includes roles such as Chief Financial Officer, Chief Operating Officer, Chief Information Officer, Chief Human Resources Officer, Chief Human Resources Officer.