Simpson Thacher Executive and Leadership Team

June, 2026

Leadership Overview

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

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

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, directs the firm's financial planning, management, and reporting. Garman oversees all fiscal operations, including budgeting, forecasting, and financial analysis, ensuring the firm's financial health and stability. This leadership position is integral to supporting the firm's international transactional capabilities and its ability to provide coordinated legal advice across diverse markets. By managing financial resources effectively and identifying strategic investment opportunities, Matthew Garman directly enhances the firm's profitability and long-term growth prospects. Garman's expertise ensures that Simpson Thacher maintains a robust financial foundation to support its global operations and client commitments.
    Matthew Garman

    Kelly Stevens - Chief Operating Officer

    Kelly Stevens, the Chief Operating Officer at Simpson Thacher, manages the firm's day-to-day operational functions and strategic business initiatives. Stevens oversees administrative departments, resource allocation, and process optimization to ensure the firm operates with maximum efficiency and effectiveness. This critical role involves coordinating efforts across various professional services teams, driving operational excellence that underpins the firm's ability to deliver coordinated legal advice and transactional capability. By streamlining workflows and enhancing internal systems, Kelly Stevens directly contributes to the firm's capacity to serve clients globally. Stevens' leadership ensures that Simpson Thacher's operational framework consistently supports its strategic objectives and market position.

    Willis Gee - Chief Information Officer

    Willis Gee, the Chief Information Officer at Simpson Thacher, directs the firm's global technology strategy and infrastructure. Overseeing all IT operations, Gee ensures the seamless integration of advanced technological solutions that support the firm's coordinated legal advice and transactional capabilities across international markets. This leadership role involves managing cybersecurity protocols, data management systems, and the implementation of innovative tools to enhance efficiency and client service delivery. By optimizing the firm's digital ecosystem, Willis Gee directly supports the firm's mission of providing exceptional legal counsel. Gee's focus remains on leveraging technology to maintain Simpson Thacher's competitive edge in the global legal sector.
    Willis Gee

    Edina Jung - Chief Human Resources Officer

    Edina Jung, the Chief Human Resources Officer at Simpson Thacher, leads the firm's comprehensive human capital strategy and management. Jung oversees talent acquisition, employee development, compensation, and benefits programs, fostering a high-performance culture that supports the firm's global legal services. This role is crucial for attracting and retaining top legal talent, ensuring the firm's workforce is equipped to deliver coordinated legal advice and transactional capability. By championing employee engagement and professional growth initiatives, Edina Jung directly contributes to the firm's success and its reputation as a leading international law firm. Jung's leadership ensures that Simpson Thacher's human resources function aligns with its strategic objectives and commitment to excellence.

    Eric Edelson - Chief Human Resources Officer

    Eric Edelson, the Chief Human Resources Officer at Simpson Thacher, spearheads initiatives focused on organizational development and employee relations. Edelson manages programs designed to enhance workforce productivity, promote diversity and inclusion, and ensure compliance with labor regulations across the firm's international operations. This position is vital for cultivating a supportive work environment that enables the delivery of coordinated legal advice and transactional capability. By driving strategic HR policies and fostering positive employee relations, Eric Edelson directly supports the firm's commitment to its people and its overall business objectives. Edelson's focus ensures that Simpson Thacher remains an employer of choice within the legal industry.

    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.