Simpson Thacher Executive and Leadership Team

September, 2026

Leadership Overview

Simpson Thacher has 4 executives leading key functions including information technology, financial management, and human resources.

Committed to excellence in global legal services, Simpson Thacher delivers sophisticated transactional capability and coordinated legal advice to clients worldwide while maintaining a legacy of professional integrity and innovation.

Leadership Roles at Simpson Thacher

  • Chief Financial Officer - Matthew Garman
  • 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, oversees the firm's fiscal health, capital allocation, and long-term financial planning. Managing global revenue streams, the Chief Financial Officer ensures the firm maintains a strong balance sheet while supporting international expansion efforts. Matthew Garman directs the budgeting process and financial reporting, providing the Board with critical insights into market performance and operational costs. By optimizing resource distribution, the Chief Financial Officer drives profitability across all practice areas. This leadership role involves rigorous oversight of financial compliance and risk management to protect the firm's assets. Through strategic financial modeling, Garman supports the firm's ability to provide coordinated legal advice on complex transactions. Ultimately, Garman sustains the financial stability required for the firm to thrive within the competitive international legal landscape.

    Willis Gee - Chief Information Officer

    Willis Gee, the Chief Information Officer at Simpson Thacher, directs the firm's global technology infrastructure and digital security protocols. Managing complex data systems, the Chief Information Officer ensures seamless connectivity across international offices while protecting sensitive client information through advanced cybersecurity measures. Willis Gee architects scalable cloud solutions that support the firm's transactional capability and legal research requirements. By integrating cutting-edge software into daily operations, the Chief Information Officer optimizes workflow efficiency for attorneys and administrative staff alike. This leadership role involves constant collaboration with the Board to align technological investments with long-term business objectives. Through the implementation of robust IT governance, Gee maintains the firm's competitive edge in the legal market. Ultimately, Gee secures the digital foundation necessary for delivering high-quality legal advice in an increasingly complex global environment.
    Willis Gee

    Edina Jung - Chief Human Resources Officer

    Edina Jung, the Chief Human Resources Officer at Simpson Thacher, manages talent acquisition, professional development, and organizational culture. Overseeing recruitment strategies for top-tier legal talent, the Chief Human Resources Officer ensures the firm attracts and retains the best professionals in the industry. Edina Jung architects comprehensive training programs that foster career growth and maintain the firm's high standards of legal excellence. By cultivating an inclusive work environment, the Chief Human Resources Officer drives employee engagement and productivity across all global offices. This leadership role involves close collaboration with the Board to align human capital strategies with the firm's overarching mission. Through the implementation of performance management systems, Jung supports the firm's ability to deliver superior client service. Ultimately, Jung strengthens the firm's human infrastructure to ensure long-term success in the legal sector.

    Eric Edelson - Chief Human Resources Officer

    Eric Edelson, the Chief Human Resources Officer at Simpson Thacher, directs compensation structures, benefits administration, and workforce planning. Managing the complexities of a global workforce, the Chief Human Resources Officer ensures operational alignment with international labor regulations and firm-wide policies. Eric Edelson architects data-driven initiatives that improve employee retention and workplace wellness. By analyzing workforce trends, the Chief Human Resources Officer supports the firm's ability to scale operations efficiently across diverse geographic markets. This leadership role involves coordinating with the Board to refine organizational design and succession planning. Through the optimization of internal communication channels, Edelson fosters a cohesive culture that supports the firm's commitment to providing coordinated legal advice. Ultimately, Edelson secures the operational consistency necessary for the firm to maintain its market position as a premier international legal institution.

    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 Willis Gee (Chief Information Officer) and Edina Jung (Chief Human Resources 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), Willis Gee (Chief Information Officer), Edina Jung (Chief Human Resources Officer) and other senior executives.
    How many executives does Simpson Thacher have?
    Simpson Thacher has 4 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 Information Officer, Chief Human Resources Officer, Chief Human Resources Officer.