Winston & Strawn, LLP Executive and Leadership Team

May, 2026

Leadership Overview

Winston & Strawn, LLP has 5 executives leading key functions including operations, finance, marketing, administration, and strategy.

Driven by a commitment to excellence, Winston & Strawn, LLP upholds a leadership philosophy centered on client success and global legal innovation, shaping market impact through comprehensive legal services.

Leadership Roles at Winston & Strawn, LLP

  • Deputy Chief Financial Officer - Raul Contreras
  • Chief Operating Officer - Amy Kotulski
  • President - Kimball Anderson
  • Partner and Chief Marketing Officer - Barbara Sessions
  • Chief Administrative Officer - Mark Stull
  • Raul Contreras - Deputy Chief Financial Officer

    Raul Contreras, the Deputy Chief Financial Officer at Winston & Strawn, LLP, supports the financial strategy and fiscal management of the international law firm. Contreras assists in overseeing budgeting, financial planning, and analysis to ensure the firm's economic health and sustainable growth. This role involves close collaboration with finance teams across global offices to maintain accurate financial reporting and compliance. By contributing to the financial oversight, Raul Contreras plays a part in enabling Winston & Strawn, LLP to invest in its diverse practice areas, including antitrust, labor and employment, and intellectual property law. The Deputy Chief Financial Officer's responsibilities also encompass managing financial risks and identifying opportunities for cost optimization, directly supporting the firm's profitability and operational capacity.

    Amy Kotulski - Chief Operating Officer

    Amy Kotulski, the Chief Operating Officer at Winston & Strawn, LLP, directs the firm's global operational infrastructure and administrative functions. Overseeing daily business operations across international offices, Kotulski ensures seamless service delivery and efficient resource allocation. This leadership role involves optimizing internal processes, managing support staff, and implementing strategic initiatives to enhance firm-wide productivity. By focusing on operational excellence, Amy Kotulski directly supports the firm's ability to provide comprehensive legal services in antitrust, labor and employment, environmental, tax, and intellectual property law. The Chief Operating Officer's purview extends to managing technology investments and ensuring the firm's operational framework aligns with its long-term strategic goals, thereby reinforcing Winston & Strawn, LLP's market position.

    Kimball Anderson - President

    Kimball Anderson, the President at Winston & Strawn, LLP, provides strategic direction and leadership for the international law firm. Anderson guides the firm's overall vision and ensures alignment with its mission to deliver exceptional legal services across diverse practice areas, including antitrust, labor and employment, and environmental law. This executive role involves fostering a culture of collaboration and innovation among partners and legal teams globally. By leading the firm, Kimball Anderson champions initiatives that enhance client value and expand market reach in the United States, Europe, Asia, and the Middle East. The President's oversight is crucial for maintaining Winston & Strawn, LLP's reputation for legal excellence and client advocacy.

    Barbara Sessions - Partner and Chief Marketing Officer

    Barbara Sessions, the Partner and Chief Marketing Officer at Winston & Strawn, LLP, architects and executes the firm's global marketing and business development strategies. Sessions drives brand visibility and market penetration across all practice areas, including antitrust, labor and employment, and environmental law. This leadership position involves developing targeted campaigns, managing client relationship initiatives, and enhancing the firm's reputation in key international markets. By leading marketing efforts, Barbara Sessions directly supports revenue generation and client acquisition, ensuring Winston & Strawn, LLP remains a preferred legal counsel. The Chief Marketing Officer's strategic direction also guides communications and public relations, solidifying the firm's standing and impact.
    Barbara Sessions

    Mark Stull - Chief Administrative Officer

    Mark Stull, the Chief Administrative Officer at Winston & Strawn, LLP, oversees the comprehensive administrative operations that support the firm's global legal practices. Stull manages critical functions including human resources, IT infrastructure, and facilities management across all international locations. This role ensures that the firm's support systems are robust and aligned with strategic objectives, facilitating the delivery of expert legal services in areas such as tax and intellectual property law. By optimizing administrative processes, Mark Stull directly contributes to the firm's operational efficiency and the professional development of its personnel. The Chief Administrative Officer's leadership ensures a productive and well-resourced environment for all legal professionals at Winston & Strawn, LLP.
    Mark Stull

    Frequently Asked Questions Regarding Winston & Strawn, LLP Top Executives and Leadership Team

    Who leads Winston & Strawn, LLP?
    Winston & Strawn, LLP is led by Raul Contreras (Deputy Chief Financial Officer), along with executives such as Amy Kotulski (Chief Operating Officer) and Kimball Anderson (President).
    Who is part of Winston & Strawn, LLP’s executive team?
    The executive team of Winston & Strawn, LLP includes leaders such as Raul Contreras (Deputy Chief Financial Officer), Amy Kotulski (Chief Operating Officer), Kimball Anderson (President) and other senior executives.
    How many executives does Winston & Strawn, LLP have?
    Winston & Strawn, LLP has 5 executives leading key business areas.
    What roles are included in Winston & Strawn, LLP’s leadership team?
    The leadership team of Winston & Strawn, LLP includes roles such as Deputy Chief Financial Officer, Chief Operating Officer, President, Partner and Chief Marketing Officer, Chief Administrative Officer.