Granite Executive and Leadership Team

October, 2026

Leadership Overview

Granite has 4 executives leading key functions including operations, financial planning, organizational management, and wholesale account development.

Focused on delivering comprehensive voice and data solutions across North America, Granite maintains a commitment to providing secure network options and reliable connectivity for businesses throughout the United States and Canada.

Leadership Roles at Granite

  • Chief Financial Officer - Jonathon Parker- Stafford
  • Chief Operating Officer - Jack McCadden
  • Senior Wholesale Account Executive & President, 2023 & 2025 's Club Winner - Thomas Antal
  • Chief of Staff - Calvin Jiang
  • Jonathon Parker- Stafford - Chief Financial Officer

    Jonathon Parker- Stafford, the Chief Financial Officer at Granite, manages the fiscal health and long-term economic strategy of the organization. Overseeing capital allocation, financial reporting, and budgetary planning, the Chief Financial Officer ensures alignment between corporate spending and the expansion of voice, data, and Internet service portfolios. This leadership role involves analyzing market trends across the United States and Canada to identify profitable growth opportunities. By implementing robust financial controls and risk management frameworks, Jonathon Parker- Stafford directly impacts the company's ability to invest in secure network infrastructure. Parker- Stafford coordinates with other executive leaders to evaluate the financial viability of new product launches and strategic partnerships. Through precise management of revenue streams and cost structures, the Chief Financial Officer secures the capital necessary for ongoing innovation. Ultimately, Parker- Stafford maintains the financial stability required to support the company's mission of providing comprehensive telecommunications solutions.

    Jack McCadden - Chief Operating Officer

    Jack McCadden, the Chief Operating Officer at Granite, directs all internal business processes and service delivery mechanisms. Overseeing the daily execution of voice, data, and wireless infrastructure projects, the Chief Operating Officer ensures operational excellence across the entire North American footprint. This leadership role involves streamlining complex network deployments while maintaining high standards for client satisfaction. By optimizing resource allocation and cross-departmental workflows, Jack McCadden directly impacts the scalability of the company's service offerings. McCadden manages the integration of new technology platforms to support the evolving needs of enterprise clients. Through rigorous oversight of technical support teams and field operations, the Chief Operating Officer guarantees consistent service quality. Ultimately, McCadden drives the operational efficiency required to sustain long-term growth within the competitive telecommunications landscape, ensuring that all network solutions meet the stringent demands of modern business environments.

    Thomas Antal - Senior Wholesale Account Executive & President, 2023 & 2025 's Club Winner

    Thomas Antal, the Senior Wholesale Account Executive & President, 2023 & 2025 's Club Winner at Granite, manages high-value wholesale partnerships and drives revenue growth within the telecommunications sector. Overseeing the acquisition and retention of large-scale accounts, the Senior Wholesale Account Executive & President, 2023 & 2025 's Club Winner ensures that clients receive tailored voice, data, and Internet solutions. This leadership role involves developing complex sales strategies that address the specific connectivity needs of enterprise partners across the United States and Canada. By cultivating long-term relationships with key stakeholders, Thomas Antal directly impacts the company's market share and competitive positioning. Antal collaborates with technical teams to design custom network architectures that solve unique client challenges. Through consistent performance and the achievement of ambitious sales targets, the Senior Wholesale Account Executive & President, 2023 & 2025 's Club Winner contributes significantly to the company's overall financial success and reputation for service excellence.
    Thomas Antal

    Calvin Jiang - Chief of Staff

    Calvin Jiang, the Chief of Staff at Granite, coordinates strategic initiatives and facilitates communication across the executive leadership team. Overseeing the implementation of corporate priorities, the Chief of Staff ensures that departmental goals remain synchronized with the broader mission of delivering voice, data, and wireless solutions. This leadership role involves managing high-priority projects and streamlining decision-making processes to enhance organizational agility. By fostering collaboration between various business units, Calvin Jiang directly impacts the efficiency of the company's North American operations. Jiang monitors the progress of key initiatives, providing the necessary support to ensure that strategic objectives reach completion on schedule. Through the management of internal communications and executive workflows, the Chief of Staff maintains a cohesive environment focused on achieving market impact. Ultimately, Jiang drives the organizational alignment required to navigate the complexities of the telecommunications industry while supporting the company's commitment to secure network connectivity.

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    Frequently Asked Questions Regarding Granite Top Executives and Leadership Team

    Who leads Granite?
    Granite is led by Jonathon Parker- Stafford (Chief Financial Officer), along with executives such as Jack McCadden (Chief Operating Officer) and Thomas Antal (Senior Wholesale Account Executive & President, 2023 & 2025 's Club Winner).
    Who is part of Granite’s executive team?
    The executive team of Granite includes leaders such as Jonathon Parker- Stafford (Chief Financial Officer), Jack McCadden (Chief Operating Officer), Thomas Antal (Senior Wholesale Account Executive & President, 2023 & 2025 's Club Winner) and other senior executives.
    How many executives does Granite have?
    Granite has 4 executives leading key business areas.
    What roles are included in Granite’s leadership team?
    The leadership team of Granite includes roles such as Chief Financial Officer, Chief Operating Officer, Senior Wholesale Account Executive & President, 2023 & 2025 's Club Winner, Chief of Staff.