Costco Wholesale Executive and Leadership Team

May, 2026

Leadership Overview

Costco Wholesale has 8 executives leading key functions including strategy, technology, operations, merchandising, and human resources.

Driven by a commitment to value, Costco Wholesale provides high-quality goods at competitive prices through efficient bulk purchasing and streamlined operations, building strong loyalty among customers.

Leadership Roles at Costco Wholesale

  • Chief Executive Officer, President & Director - Ron Vachris
  • Executive Vice President & Division Chief Operating Officer, Canadian - Edward Maron
  • Executive Vice President & Chief Operating Officer - Joe Portera
  • Executive Vice President & Division Chief Operating Officer, Southwest (Mexico) - Dennis Zook
  • Chief Technology Officer - Torsten Lubach
  • Senior Vice President & General Manager (San Diego Region) - W. Wilcox
  • Executive Vice President, Merchandising - Claudine Adamo
  • Gerente RRHH - Adriana Berenice
  • Ron Vachris - Chief Executive Officer, President & Director

    Ron Vachris, the Chief Executive Officer, President & Director at Costco Wholesale, directs the overall strategic vision and operational execution for the membership-based warehouse retailer. Vachris guides the company's global expansion and market positioning, ensuring adherence to the core philosophy of delivering exceptional value. This leadership role involves overseeing all major business units and fostering a culture of efficiency and customer focus. By optimizing supply chain logistics and enhancing the member experience, Ron Vachris drives sustainable growth and reinforces Costco's reputation for quality and affordability across its diverse product categories, from groceries to electronics. The Chief Executive Officer's purview extends to financial performance and long-term business development, securing the company's competitive edge in the retail landscape.
    Ron Vachris

    Edward Maron - Executive Vice President & Division Chief Operating Officer, Canadian

    Edward Maron, the Executive Vice President & Division Chief Operating Officer, Canadian at Costco Wholesale, directs all operational activities within the Canadian market. Maron ensures the efficient functioning of Canadian warehouses, focusing on inventory management, staff productivity, and adherence to company standards. This leadership position involves optimizing the supply chain and logistics specific to the Canadian region, enhancing the value proposition for members. By overseeing daily operations and implementing strategic initiatives, Edward Maron contributes to Costco's strong market presence and customer loyalty in Canada. The Executive Vice President's role is critical in maintaining the company's operational excellence and delivering competitive pricing and high-quality products to Canadian consumers.

    Joe Portera - Executive Vice President & Chief Operating Officer

    Joe Portera, the Executive Vice President & Chief Operating Officer at Costco Wholesale, oversees the broad operational framework that supports the company's global retail strategy. Portera drives efficiency across all business functions, ensuring the seamless execution of day-to-day activities that uphold Costco's commitment to value and quality. This executive role involves optimizing supply chain management, inventory control, and warehouse operations to maintain competitive pricing and product availability. By fostering operational excellence, Joe Portera directly impacts the company's ability to deliver exceptional value to its members. The Chief Operating Officer's leadership ensures that the company's efficient business model continues to thrive, supporting robust growth and member satisfaction worldwide.

    Dennis Zook - Executive Vice President & Division Chief Operating Officer, Southwest (Mexico)

    Dennis Zook, the Executive Vice President & Division Chief Operating Officer, Southwest (Mexico) at Costco Wholesale, spearheads operational management for the Southwest region of Mexico. Zook ensures that all warehouse operations within this division meet Costco's high standards for efficiency, product quality, and member service. This executive role focuses on optimizing local supply chains, managing inventory effectively, and driving operational performance to deliver superior value to Mexican members. By implementing strategic operational plans, Dennis Zook strengthens Costco's market position and reinforces customer loyalty in the region. The Chief Operating Officer's dedication to operational excellence is key to maintaining competitive pricing and the consistent delivery of high-quality goods.

    Torsten Lubach - Chief Technology Officer

    Torsten Lubach, the Chief Technology Officer at Costco Wholesale, architects the company's technological infrastructure and digital strategy. Lubach drives innovation in IT systems, ensuring seamless operations across all warehouses and online platforms. This executive oversees the development and implementation of cutting-edge solutions that enhance operational efficiency and the customer shopping experience. By managing data security and leveraging technology for inventory management and sales analytics, Torsten Lubach supports Costco's commitment to value and competitive pricing. The Chief Technology Officer's responsibilities include guiding digital transformation initiatives and ensuring robust, scalable IT support for the company's global retail operations, thereby maintaining a strong technological foundation for future growth.
    Torsten Lubach

    W. Wilcox - Senior Vice President & General Manager (San Diego Region)

    W. Wilcox, the Senior Vice President & General Manager (San Diego Region) at Costco Wholesale, directs comprehensive operations within the San Diego region. Wilcox ensures that all regional warehouses function with peak efficiency, maintaining Costco's standards for product quality and member satisfaction. This leadership role involves optimizing local inventory management, driving sales performance, and enhancing the overall shopping experience for members in the San Diego area. By overseeing regional strategies and team performance, W. Wilcox contributes directly to Costco's value proposition and market penetration. The Senior Vice President's focus on operational excellence supports the company's mission of providing high-quality goods at competitive prices.

    Claudine Adamo - Executive Vice President, Merchandising

    Claudine Adamo, the Executive Vice President, Merchandising at Costco Wholesale, shapes the company's product assortment and sourcing strategies. Adamo drives the selection of high-quality goods and private label products, ensuring they align with Costco's commitment to value and competitive pricing. This executive role involves overseeing all merchandising departments, negotiating with suppliers, and identifying market trends to meet member needs effectively. By curating a diverse and appealing product selection, Claudine Adamo enhances the member shopping experience and reinforces Costco's reputation for offering exceptional value. The Executive Vice President's strategic merchandising decisions are fundamental to the company's success and sustained customer loyalty.

    Adriana Berenice - Gerente RRHH

    Adriana Berenice, the Gerente RRHH at Costco Wholesale, manages human resources functions critical to the company's operational success. Berenice oversees employee relations, talent acquisition, and development programs, ensuring a skilled and motivated workforce across various locations. This role focuses on fostering a positive work environment that supports Costco's core values of integrity and respect. By implementing effective HR strategies, Adriana Berenice contributes to operational efficiency and employee retention, which are vital for maintaining the company's commitment to value and customer service. The Gerente RRHH's leadership in human capital management is essential for supporting Costco's extensive retail operations and its dedication to its employees.

    Explore Leadership Teams in Department Stores, Shopping Centers & Superstores

    Frequently Asked Questions Regarding Costco Wholesale Top Executives and Leadership Team

    Who leads Costco Wholesale?
    Costco Wholesale is led by Ron Vachris (Chief Executive Officer, President & Director), along with executives such as Edward Maron (Executive Vice President & Division Chief Operating Officer, Canadian) and Joe Portera (Executive Vice President & Chief Operating Officer).
    Who is part of Costco Wholesale’s executive team?
    The executive team of Costco Wholesale includes leaders such as Ron Vachris (Chief Executive Officer, President & Director), Edward Maron (Executive Vice President & Division Chief Operating Officer, Canadian), Joe Portera (Executive Vice President & Chief Operating Officer) and other senior executives.
    How many executives does Costco Wholesale have?
    Costco Wholesale has 8 executives leading key business areas.
    What roles are included in Costco Wholesale’s leadership team?
    The leadership team of Costco Wholesale includes roles such as Chief Executive Officer, President & Director, Executive Vice President & Division Chief Operating Officer, Canadian, Executive Vice President & Chief Operating Officer, Executive Vice President & Division Chief Operating Officer, Southwest (Mexico), Chief Technology Officer.