Westcon-Comstor Executive and Leadership Team

June, 2026

Leadership Overview

Westcon-Comstor has 7 executives leading key functions including strategy, information technology, marketing, operations, finance, and global market presence.

Driven by value-added distribution, Westcon-Comstor focuses on providing specialized networking, cybersecurity, and cloud solutions, shaping the future of technology distribution worldwide.

Leadership Roles at Westcon-Comstor

  • Chief Executive Officer - David Grant
  • Chief Financial Officer - Catherine Mwololo
  • Chief Operating Officer & Chief Financial Officer - Callum McGregor
  • Chief Operating Officer - Elmien Toit
  • President - Diver Donn
  • Chief Information Officer - Dwight Pitter
  • Chief Marketing Officer - Patrick Aronson
  • David Grant - Chief Executive Officer

    David Grant, the Chief Executive Officer at Westcon-Comstor, directs the company's overall strategic vision and global operations. Overseeing all business units, Grant ensures alignment with market demands for networking, cybersecurity, and cloud solutions. This leadership role involves driving growth initiatives and fostering key partner relationships across the technology distribution landscape. By optimizing resource allocation and championing innovation, David Grant directly impacts the company's competitive positioning. Ultimately, Grant secures long-term financial stability and market leadership for Westcon-Comstor.
    David Grant

    Catherine Mwololo - Chief Financial Officer

    Catherine Mwololo, the Chief Financial Officer at Westcon-Comstor, manages the company's financial health and strategic fiscal planning. Overseeing all financial operations, Mwololo ensures robust accounting practices and drives profitability for the distribution of networking, cybersecurity, and cloud solutions. This key position involves managing investments, optimizing capital allocation, and ensuring compliance with global financial regulations. By providing critical financial insights, Catherine Mwololo directly supports informed decision-making across all business units. Ultimately, Mwololo safeguards the company's financial integrity and drives sustainable economic growth.

    Callum McGregor - Chief Operating Officer & Chief Financial Officer

    Callum McGregor, the Chief Operating Officer & Chief Financial Officer at Westcon-Comstor, drives both operational efficiency and fiscal strategy. Overseeing critical business functions, McGregor ensures the seamless execution of distribution services for networking, cybersecurity, and cloud solutions while managing financial performance. This dual role involves optimizing supply chains and resource management alongside rigorous financial oversight and strategic investment planning. By integrating operational improvements with sound financial discipline, Callum McGregor directly enhances the company's overall effectiveness and profitability. Ultimately, McGregor fortifies Westcon-Comstor's market position through integrated leadership in operations and finance.
    Callum McGregor

    Elmien Toit - Chief Operating Officer

    Elmien Toit, the Chief Operating Officer at Westcon-Comstor, directs operational excellence and supply chain management across global markets. Overseeing day-to-day business functions, Toit ensures the efficient delivery of specialized networking, cybersecurity, and cloud solutions. This role involves optimizing logistics, streamlining processes, and enhancing service delivery to meet stringent industry standards. By implementing best practices in operational efficiency, Elmien Toit directly contributes to cost reduction and improved customer satisfaction. Ultimately, Toit strengthens the company's operational framework, ensuring reliable and scalable distribution services worldwide.
    Elmien Toit

    Diver Donn - President

    Diver Donn, the President at Westcon-Comstor, leads strategic market expansion and business development initiatives. Overseeing key growth sectors, Donn focuses on strengthening the company's position in networking, cybersecurity, and cloud solutions distribution. This executive role involves forging strategic alliances and identifying new market opportunities to drive revenue. By championing new business ventures and fostering strong partner ecosystems, Diver Donn directly accelerates Westcon-Comstor's global reach. Ultimately, Donn ensures the company's sustained growth and leadership within the technology distribution industry.

    Dwight Pitter - Chief Information Officer

    Dwight Pitter, the Chief Information Officer at Westcon-Comstor, architects the company's global technology infrastructure and digital transformation strategies. Overseeing all IT operations, Pitter ensures the seamless integration of advanced systems that support Westcon-Comstor's value-added distribution services. This critical role involves enhancing cybersecurity measures and implementing scalable cloud solutions to meet evolving client needs. By driving technological innovation, Dwight Pitter directly supports operational efficiency and data security across all regions. Ultimately, Pitter strengthens the company's digital backbone, enabling robust service delivery and market responsiveness.

    Patrick Aronson - Chief Marketing Officer

    Patrick Aronson, the Chief Marketing Officer at Westcon-Comstor, spearheads global marketing initiatives and brand strategy. Overseeing all promotional activities, Aronson drives market penetration for networking, cybersecurity, and cloud solutions. This leadership position involves developing targeted campaigns that resonate with channel partners and end-users, thereby expanding market reach. By analyzing market trends and customer insights, Patrick Aronson directly influences product positioning and sales enablement. Ultimately, Aronson enhances Westcon-Comstor's brand visibility and strengthens its market presence through impactful communication strategies.

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    Frequently Asked Questions Regarding Westcon-Comstor Top Executives and Leadership Team

    Who leads Westcon-Comstor?
    Westcon-Comstor is led by David Grant (Chief Executive Officer), along with executives such as Catherine Mwololo (Chief Financial Officer) and Callum McGregor (Chief Operating Officer & Chief Financial Officer).
    Who is part of Westcon-Comstor’s executive team?
    The executive team of Westcon-Comstor includes leaders such as David Grant (Chief Executive Officer), Catherine Mwololo (Chief Financial Officer), Callum McGregor (Chief Operating Officer & Chief Financial Officer) and other senior executives.
    How many executives does Westcon-Comstor have?
    Westcon-Comstor has 7 executives leading key business areas.
    What roles are included in Westcon-Comstor’s leadership team?
    The leadership team of Westcon-Comstor includes roles such as Chief Executive Officer, Chief Financial Officer, Chief Operating Officer & Chief Financial Officer, Chief Operating Officer, President.