Johnstone Supply Executive and Leadership Team

July, 2026

Leadership Overview

Johnstone Supply has 10 executives leading key functions including strategy, finance, operations, and human resources.

Driven by a commitment to contractor success, Johnstone Supply provides the HVACR industry with the largest selection of equipment and genuine OEM parts, ensuring professionals have the best brands and technology to complete any job.

Leadership Roles at Johnstone Supply

  • Owner & Chief Executive Officer - Mark Temple
  • President & Chief Executive Officer - Dwayne Farbe
  • Chief Financial Officer - Mandi Nivens
  • Chief Operating Officer - Jonathan Hardy
  • President - Janet Kirk
  • President - Benjamin Brasseur
  • President - Michael Duncan
  • President - Todd Bridwell
  • President - Harry Gayden
  • Chief Human Resources Officer - Stacy Cardwell
  • Mark Temple - Owner & Chief Executive Officer

    Mark Temple, the Owner & Chief Executive Officer at Johnstone Supply, directs the overarching strategy and ownership directives for the wholesale distribution of HVACR equipment and parts. Temple's leadership ensures the company maintains its position as a primary supplier for professional contractors, focusing on expanding the industry's largest selection of genuine OEM parts and equipment. This executive guides the company's long-term vision, emphasizing continuous growth and adaptation to meet evolving contractor needs. The strategic direction set by Mark Temple underpins the company's commitment to providing superior brands and cutting-edge technology, directly impacting the operational efficiency and success of its clientele across the United States. Temple's role is central to maintaining Johnstone Supply's market leadership and fostering strong relationships within the HVACR sector.

    Dwayne Farbe - President & Chief Executive Officer

    Dwayne Farbe, the President & Chief Executive Officer at Johnstone Supply, executes the strategic vision and operational management for the wholesale distribution of HVACR products. Farbe's leadership ensures Johnstone Supply maintains its extensive inventory of equipment and genuine OEM parts, catering to the diverse needs of professional contractors. This executive drives initiatives to continuously expand product offerings and integrate the latest brands and technologies, reinforcing the company's commitment to contractor success. Dwayne Farbe oversees critical business functions, ensuring seamless operations and sustained growth in a competitive market. The focus remains on providing contractors with the essential components and support required to perform their jobs effectively, solidifying Johnstone Supply's reputation for reliability and comprehensive selection.

    Mandi Nivens - Chief Financial Officer

    Mandi Nivens, the Chief Financial Officer at Johnstone Supply, directs all financial operations and fiscal strategy for the wholesale distribution of HVACR equipment and parts. Nivens oversees budgeting, financial planning, and risk management, ensuring the company's financial health and stability. This executive plays a crucial role in managing the financial aspects of maintaining the industry's largest selection of equipment and genuine OEM parts, supporting the continuous expansion of product lines and technology integration. Mandi Nivens ensures that financial resources are allocated effectively to support operational growth and contractor needs. The financial oversight provided by Nivens is integral to Johnstone Supply's ability to invest in new brands and technologies, thereby empowering professional HVACR contractors with the tools they require.
    Mandi Nivens

    Jonathan Hardy - Chief Operating Officer

    Jonathan Hardy, the Chief Operating Officer at Johnstone Supply, oversees the day-to-day operational execution for the wholesale distribution of HVACR equipment and parts. Hardy manages supply chain logistics, inventory management, and distribution networks to ensure the availability of the industry's largest selection of equipment and genuine OEM parts. This executive focuses on optimizing operational efficiency, driving the continuous expansion of product offerings to meet contractor demands. Jonathan Hardy ensures that the company's operational framework supports the integration of new brands and technologies, facilitating contractor success. The operational strategies implemented by Hardy are critical for maintaining Johnstone Supply's market leadership and ensuring timely delivery of essential components to HVACR professionals across its service areas.
    Jonathan Hardy

    Janet Kirk - President

    Janet Kirk, the President at Johnstone Supply, directs strategic initiatives and operational oversight for key segments of the wholesale distribution of HVACR equipment and parts. Kirk's leadership focuses on ensuring the company maintains its extensive selection of equipment and genuine OEM parts, crucial for professional contractors. This executive drives efforts to continuously expand product offerings and integrate advanced brands and technologies, aligning with market demands. Janet Kirk oversees the execution of business strategies designed to enhance customer satisfaction and operational effectiveness. The focus remains on supporting contractors with the necessary resources and products to excel in their field, reinforcing Johnstone Supply's commitment to industry excellence.

    Benjamin Brasseur - President

    Benjamin Brasseur, the President at Johnstone Supply, leads strategic planning and operational execution for specific market regions within the wholesale distribution of HVACR equipment and parts. Brasseur ensures the company's commitment to providing the largest selection of equipment and genuine OEM parts is met, supporting professional contractors effectively. This executive champions initiatives for product line expansion and the adoption of new technologies to meet evolving industry needs. Benjamin Brasseur oversees the management of regional operations, focusing on driving efficiency and customer satisfaction. The leadership provided by Brasseur is instrumental in maintaining Johnstone Supply's competitive edge and ensuring contractors have access to superior brands and essential components.

    Michael Duncan - President

    Michael Duncan, the President at Johnstone Supply, directs strategic growth and operational management for designated areas of the wholesale distribution of HVACR equipment and parts. Duncan emphasizes maintaining the industry's most comprehensive selection of equipment and genuine OEM parts, vital for professional HVACR contractors. This executive drives the continuous expansion of product portfolios and the integration of cutting-edge brands and technologies to serve contractor needs. Michael Duncan oversees the implementation of business strategies aimed at enhancing market presence and operational performance. The leadership of Duncan ensures that Johnstone Supply remains a trusted partner, providing contractors with the essential tools and support required for their success.

    Todd Bridwell - President

    Todd Bridwell, the President at Johnstone Supply, leads strategic development and operational oversight for key business units in the wholesale distribution of HVACR equipment and parts. Bridwell ensures the company upholds its reputation for the largest selection of equipment and genuine OEM parts, critical for professional contractors. This executive spearheads efforts to expand product offerings and incorporate innovative brands and technologies, addressing the dynamic requirements of the HVACR sector. Todd Bridwell manages the execution of strategic plans to optimize distribution channels and enhance service delivery. The focus remains on empowering contractors with reliable access to high-quality components and advanced solutions.

    Harry Gayden - President

    Harry Gayden, the President at Johnstone Supply, directs strategic planning and operational execution across significant territories for the wholesale distribution of HVACR equipment and parts. Gayden ensures the company's extensive inventory of equipment and genuine OEM parts remains unparalleled, serving the critical needs of professional contractors. This executive drives the ongoing expansion of product lines and the adoption of new technologies to meet the evolving demands of the HVACR industry. Harry Gayden oversees the strategic deployment of resources to maximize operational efficiency and market reach. The leadership of Gayden is pivotal in maintaining Johnstone Supply's commitment to providing contractors with the best brands and technology available.

    Stacy Cardwell - Chief Human Resources Officer

    Stacy Cardwell, the Chief Human Resources Officer at Johnstone Supply, leads all human capital management strategies and initiatives for the wholesale distribution of HVACR equipment and parts. Cardwell is responsible for talent acquisition, employee development, and fostering a positive organizational culture that supports the company's mission. This executive ensures that Johnstone Supply attracts and retains skilled professionals necessary to manage the industry's largest selection of equipment and genuine OEM parts, and to drive the continuous expansion of product lines. Stacy Cardwell oversees programs that enhance employee engagement and align human resources functions with the company's strategic goals. The HR leadership provided by Cardwell is vital for supporting the operational teams that serve professional HVACR contractors.

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    Frequently Asked Questions Regarding Johnstone Supply Top Executives and Leadership Team

    Who leads Johnstone Supply?
    Johnstone Supply is led by Mark Temple (Owner & Chief Executive Officer), along with executives such as Dwayne Farbe (President & Chief Executive Officer) and Mandi Nivens (Chief Financial Officer).
    Who is part of Johnstone Supply’s executive team?
    The executive team of Johnstone Supply includes leaders such as Mark Temple (Owner & Chief Executive Officer), Dwayne Farbe (President & Chief Executive Officer), Mandi Nivens (Chief Financial Officer) and other senior executives.
    How many executives does Johnstone Supply have?
    Johnstone Supply has 10 executives leading key business areas.
    What roles are included in Johnstone Supply’s leadership team?
    The leadership team of Johnstone Supply includes roles such as Owner & Chief Executive Officer, President & Chief Executive Officer, Chief Financial Officer, Chief Operating Officer, President.