Columbia Association Executive and Leadership Team

November, 2026

Leadership Overview

Columbia Association has 7 executives leading key functions including strategic leadership, operational management, financial oversight, and administrative support.

Dedicated to fostering community growth and environmental stewardship, Columbia Association maintains a vast network of recreational facilities and open spaces while upholding the founding vision of a vibrant, inclusive city.

Leadership Roles at Columbia Association

  • Interim President & Chief Executive Officer - Dennis Mattey
  • President & Chief Executive Officer - Shawn MacInnes
  • President & Chief Executive Officer - Phillip Nelson
  • Executive Assistant To the President and Chief Executive Officer - Janet Loughran
  • Chief Financial Officer - Susan Krabbe
  • Senior VP, Administration & Chief Financial Officer - Shon McCollum
  • Chief Operating Officer - Rob Goldman
  • Dennis Mattey - Interim President & Chief Executive Officer

    Dennis Mattey, the Interim President & Chief Executive Officer at Columbia Association, directs the organization through a period of strategic transition. Overseeing the alignment of community services with the long-term vision of the association, the Interim President & Chief Executive Officer ensures that recreational and cultural programs remain accessible to all residents. This leadership role involves constant collaboration with the Board to maintain fiscal health while managing the vast network of parks and pathways. By prioritizing the maintenance of nearly 3,600 acres of open space, Dennis Mattey preserves the environmental integrity of the region. The Interim President & Chief Executive Officer also facilitates communication between various departments to streamline service delivery. Through this focused approach, Mattey stabilizes operations and prepares the organization for future growth, ensuring that the community remains a premier destination for families and individuals seeking high-quality amenities and a supportive environment.

    Shawn MacInnes - President & Chief Executive Officer

    Shawn MacInnes, the President & Chief Executive Officer at Columbia Association, architects the overarching strategic roadmap for the organization. Driving the expansion of community services, the President & Chief Executive Officer monitors the performance of recreational facilities and childcare programs to ensure excellence. This role requires deep engagement with regional stakeholders to foster economic development within the town center and surrounding areas. By optimizing the utilization of lakes, parks, and athletic courts, Shawn MacInnes maximizes the value provided to residents. The President & Chief Executive Officer also leads initiatives to modernize infrastructure, ensuring that the 95 miles of pathways and other amenities meet contemporary standards. Through rigorous oversight of organizational goals, MacInnes secures the long-term sustainability of the association. This leadership position demands a balance between preserving historical community values and implementing innovative solutions that enhance the daily lives of all residents across the entire region.

    Phillip Nelson - President & Chief Executive Officer

    Phillip Nelson, the President & Chief Executive Officer at Columbia Association, manages the complex integration of community services and land management. Focusing on the operational efficiency of the organization, the President & Chief Executive Officer coordinates the efforts of various departments to deliver high-quality recreational and educational experiences. This role involves evaluating the impact of current programs on resident satisfaction and adjusting strategies to meet evolving community needs. By overseeing the maintenance of critical assets like the town center and various athletic facilities, Phillip Nelson ensures that the association remains a cornerstone of local life. The President & Chief Executive Officer also cultivates partnerships that support the growth of individual residents and the broader community. Through disciplined leadership, Nelson drives the mission forward, ensuring that the organization remains a faithful steward of the land and a provider of essential services that define the unique character of the region.

    Janet Loughran - Executive Assistant To the President and Chief Executive Officer

    Janet Loughran, the Executive Assistant To the President and Chief Executive Officer at Columbia Association, facilitates the strategic priorities of the executive office. Overseeing the coordination of high-level meetings and communications, the Executive Assistant To the President and Chief Executive Officer ensures that the leadership team remains focused on core organizational objectives. This role involves managing the flow of information between the Board, the executive team, and various community stakeholders to maintain alignment with the founding vision. By organizing complex schedules and projects, Janet Loughran enables the leadership to dedicate time to critical initiatives like land management and service expansion. The Executive Assistant To the President and Chief Executive Officer also serves as a primary point of contact for internal and external inquiries, ensuring that the association maintains a professional and responsive presence. Through diligent support, Loughran enhances the effectiveness of the executive office, directly contributing to the successful execution of the mission to foster a vibrant and inclusive community.

    Susan Krabbe - Chief Financial Officer

    Susan Krabbe, the Chief Financial Officer at Columbia Association, directs the financial strategy and fiscal health of the organization. Overseeing the budgeting process for recreational, cultural, and community services, the Chief Financial Officer ensures that resources align with the long-term vision of the association. This role involves managing capital investments in infrastructure, such as the maintenance of pathways and town center facilities, to guarantee sustainable growth. By implementing robust financial controls, Susan Krabbe protects the assets of the organization and ensures transparency in all fiscal operations. The Chief Financial Officer also provides critical data-driven insights to the executive team, enabling informed decision-making regarding future projects and service expansions. Through meticulous oversight of revenue streams and expenditures, Krabbe maintains the financial stability necessary to support the diverse needs of the community. This leadership position is essential for balancing the costs of maintaining vast open spaces with the delivery of high-quality services to residents.

    Shon McCollum - Senior VP, Administration & Chief Financial Officer

    Shon McCollum, the Senior VP, Administration & Chief Financial Officer at Columbia Association, manages the intersection of administrative policy and financial planning. Overseeing the internal systems that support organizational functions, the Senior VP, Administration & Chief Financial Officer ensures that administrative workflows remain efficient and compliant. This role involves the integration of financial reporting with administrative oversight to provide a comprehensive view of organizational performance. By optimizing the allocation of funds for administrative and operational needs, Shon McCollum supports the delivery of recreational and community services. The Senior VP, Administration & Chief Financial Officer also leads initiatives to improve organizational governance, ensuring that all departments operate in accordance with the founding vision. Through strategic management of administrative resources, McCollum enhances the overall capacity of the association to serve the community. This leadership role is critical for maintaining the structural integrity of the organization while ensuring that financial goals are met with precision and accountability.

    Rob Goldman - Chief Operating Officer

    Rob Goldman, the Chief Operating Officer at Columbia Association, executes the daily operational strategies required to maintain the extensive portfolio of community amenities. Overseeing the maintenance of parks, lakes, and athletic courts, the Chief Operating Officer ensures that all facilities operate at peak performance levels. This role involves managing the logistics of recreational programming and ensuring that childcare services meet rigorous safety and quality standards. By streamlining internal processes, Rob Goldman improves the efficiency of service delivery across the entire organization. The Chief Operating Officer also works closely with department heads to allocate resources effectively, supporting the broader mission of environmental and community stewardship. Through constant monitoring of operational metrics, Goldman identifies opportunities for improvement in the management of the 3,600 acres of open space. This leadership role remains vital for the seamless functioning of the association, directly impacting the quality of life for residents who utilize these essential community assets.

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    Frequently Asked Questions Regarding Columbia Association Top Executives and Leadership Team

    Who leads Columbia Association?
    Columbia Association is led by Dennis Mattey (Interim President & Chief Executive Officer), along with executives such as Shawn MacInnes (President & Chief Executive Officer) and Phillip Nelson (President & Chief Executive Officer).
    Who is part of Columbia Association’s executive team?
    The executive team of Columbia Association includes leaders such as Dennis Mattey (Interim President & Chief Executive Officer), Shawn MacInnes (President & Chief Executive Officer), Phillip Nelson (President & Chief Executive Officer) and other senior executives.
    How many executives does Columbia Association have?
    Columbia Association has 7 executives leading key business areas.
    What roles are included in Columbia Association’s leadership team?
    The leadership team of Columbia Association includes roles such as Interim President & Chief Executive Officer, President & Chief Executive Officer, President & Chief Executive Officer, Executive Assistant To the President and Chief Executive Officer, Chief Financial Officer.