Interfor Executive and Leadership Team

August, 2026

Leadership Overview

Interfor has 4 executives leading key functions including strategy, organizational alignment, operational efficiency, and financial management.

Focused on sustainable timber production, Interfor delivers high-quality lumber products to global markets while maintaining a commitment to operational excellence and long-term value creation across North American manufacturing facilities.

Leadership Roles at Interfor

  • President & Chief Executive Officer - Ian Fillinger
  • Executive Vice President & Chief Financial Officer - Michael Mackay
  • Executive Vice President & Chief Operating Officer - Andrew Horahan
  • Chief of Staff - Holly Gossett
  • Ian Fillinger - President & Chief Executive Officer

    Ian Fillinger, the President & Chief Executive Officer at Interfor, directs the overarching corporate strategy and long-term vision for the organization. Overseeing the expansion of sawmilling operations across North America, the President & Chief Executive Officer ensures alignment between manufacturing output and global market demand. This leadership role involves constant engagement with the Board to optimize capital allocation and drive sustainable growth. By prioritizing operational efficiency and safety standards, Ian Fillinger maintains the competitive position of the company within the forest products industry. The President & Chief Executive Officer manages the integration of new acquisitions into the existing portfolio, ensuring consistent performance across all regional divisions. Through rigorous oversight of corporate governance and strategic planning, the President & Chief Executive Officer secures the future trajectory of the business while delivering consistent value to shareholders and stakeholders throughout the international supply chain.
    Ian Fillinger

    Michael Mackay - Executive Vice President & Chief Financial Officer

    Michael Mackay, the Executive Vice President & Chief Financial Officer at Interfor, directs the financial strategy, capital structure, and fiscal reporting for the organization. Overseeing the management of corporate assets and investment portfolios, the Executive Vice President & Chief Financial Officer ensures the financial health of the company during periods of market volatility. This role involves analyzing economic trends to inform strategic decisions regarding expansion and capital expenditure. By maintaining rigorous internal controls and financial transparency, Michael Mackay supports the long-term stability of the business. The Executive Vice President & Chief Financial Officer manages relationships with investors and financial institutions to secure the necessary funding for ongoing operations and growth initiatives. Through the oversight of budgeting and forecasting processes, the Executive Vice President & Chief Financial Officer provides the leadership team with the insights required to navigate the complexities of the forest products industry while maximizing shareholder returns.
    Michael Mackay

    Andrew Horahan - Executive Vice President & Chief Operating Officer

    Andrew Horahan, the Executive Vice President & Chief Operating Officer at Interfor, manages the daily manufacturing activities and supply chain logistics across all North American facilities. Overseeing the production of diverse lumber products, the Executive Vice President & Chief Operating Officer optimizes mill performance to maximize yield and efficiency. This leadership role involves implementing advanced sawmilling technologies to maintain high output standards while adhering to strict environmental regulations. By coordinating regional operations, Andrew Horahan ensures that the company meets the complex demands of global customers. The Executive Vice President & Chief Operating Officer drives continuous improvement initiatives to reduce waste and enhance product quality throughout the manufacturing process. Through the oversight of logistics and distribution networks, the Executive Vice President & Chief Operating Officer guarantees the timely delivery of materials to international markets. This operational focus remains critical to the success of the company in a competitive global landscape.
    Andrew Horahan

    Holly Gossett - Chief of Staff

    Holly Gossett, the Chief of Staff at Interfor, coordinates executive communications and facilitates strategic initiatives across the leadership team. Managing the flow of information between departments, the Chief of Staff ensures that corporate objectives remain clear and actionable for all business units. This role involves streamlining internal processes to improve decision-making speed and organizational agility. By aligning cross-functional teams with the core mission of the company, Holly Gossett drives operational cohesion and supports the execution of high-priority projects. The Chief of Staff monitors progress on key performance indicators, providing the necessary data to refine business strategies. Through the management of executive workflows and the facilitation of board-level interactions, the Chief of Staff optimizes the effectiveness of the senior leadership group. This position remains central to maintaining the operational rhythm required to sustain the company's status as a leader in the global forest products market.

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    Frequently Asked Questions Regarding Interfor Top Executives and Leadership Team

    Who leads Interfor?
    Interfor is led by Ian Fillinger (President & Chief Executive Officer), along with executives such as Michael Mackay (Executive Vice President & Chief Financial Officer) and Andrew Horahan (Executive Vice President & Chief Operating Officer).
    Who is part of Interfor’s executive team?
    The executive team of Interfor includes leaders such as Ian Fillinger (President & Chief Executive Officer), Michael Mackay (Executive Vice President & Chief Financial Officer), Andrew Horahan (Executive Vice President & Chief Operating Officer) and other senior executives.
    How many executives does Interfor have?
    Interfor has 4 executives leading key business areas.
    What roles are included in Interfor’s leadership team?
    The leadership team of Interfor includes roles such as President & Chief Executive Officer, Executive Vice President & Chief Financial Officer, Executive Vice President & Chief Operating Officer, Chief of Staff.