County Materials Executive and Leadership Team

November, 2026

Leadership Overview

County Materials has 4 executives leading key functions including financial strategy, human capital management, corporate leadership, and data analytics.

Focused on delivering high-quality concrete construction solutions, County Materials drives infrastructure development across the nation while maintaining a steadfast commitment to community growth and sustainable building practices.

Leadership Roles at County Materials

  • Chief Financial Officer - Bob Stoehr
  • President - Tim Sonnentag
  • Chief People Officer - Aimee Therrian
  • Manager, Applications & Analytics - Patrick Metzinger
  • Bob Stoehr - Chief Financial Officer

    Bob Stoehr, the Chief Financial Officer at County Materials, directs all fiscal operations and capital allocation strategies. Overseeing the financial health of the organization, the Chief Financial Officer ensures robust liquidity to support the manufacturing of concrete pipe, precast structures, and masonry products. This leadership role involves managing complex budgetary requirements across diverse regional manufacturing facilities. By optimizing cost structures and capital investments, Bob Stoehr directly impacts the long-term stability of the company. Stoehr maintains rigorous oversight of financial reporting, ensuring transparency for stakeholders and investors. Through strategic financial planning, the Chief Financial Officer facilitates the expansion of market reach for aggregates and ready-mix concrete. Ultimately, Stoehr secures the necessary resources to maintain the competitive edge of the firm within the American construction landscape, fostering consistent growth and operational excellence across all business units.

    Tim Sonnentag - President

    Tim Sonnentag, the President at County Materials, directs the overarching strategic vision and operational execution for the entire organization. Overseeing the production of concrete pipe, masonry, and ready-mix concrete, the President ensures that all business activities align with the core mission of building resilient communities. This leadership role involves coordinating with the executive team to drive market expansion and product innovation across the United States. By setting high standards for quality and community support, Tim Sonnentag directly impacts the market position of the company among municipalities and private contractors. Sonnentag manages high-level relationships with industry partners and stakeholders to facilitate large-scale infrastructure projects. Through decisive leadership, the President maintains the focus on American-made excellence and sustainable growth. Ultimately, Sonnentag guides the firm toward long-term success by balancing operational efficiency with a deep commitment to the communities served by the diverse product portfolio.

    Aimee Therrian - Chief People Officer

    Aimee Therrian, the Chief People Officer at County Materials, architects the human capital strategy to support a workforce dedicated to high-quality concrete production. Overseeing talent acquisition, employee development, and organizational culture, the Chief People Officer ensures alignment between staff capabilities and the company's mission to build communities. This leadership role involves implementing comprehensive training programs for employees handling precast structures and landscape products. By fostering a culture of safety and professional growth, Aimee Therrian directly impacts the retention and productivity of the workforce. Therrian manages internal communications and performance management systems to drive operational efficiency across all manufacturing sites. Through strategic workforce planning, the Chief People Officer supports the scaling of operations to meet the demands of architects, engineers, and contractors. Ultimately, Therrian cultivates a high-performing environment that sustains the reputation of the firm as a premier employer in the construction industry.

    Patrick Metzinger - Manager, Applications & Analytics

    Patrick Metzinger, the Manager, Applications & Analytics at County Materials, directs the digital infrastructure and data-driven decision-making processes. Overseeing the integration of advanced analytics into manufacturing and supply chain operations, the Manager, Applications & Analytics ensures that data informs the production of aggregates, sands, and soils. This leadership role involves architecting scalable software solutions that streamline interactions between architects, engineers, and the internal sales teams. By leveraging data insights to optimize logistics and inventory management, Patrick Metzinger directly impacts the efficiency of regional distribution networks. Metzinger manages the implementation of new digital tools to enhance the customer experience for homeowners and municipal clients. Through rigorous analysis of market trends and operational performance, the Manager, Applications & Analytics supports the strategic goals of the executive leadership team. Ultimately, Metzinger drives technological advancement to maintain the competitive advantage of the firm in a rapidly evolving construction market.

    Explore Leadership Teams in Building Materials

    Frequently Asked Questions Regarding County Materials Top Executives and Leadership Team

    Who leads County Materials?
    County Materials is led by Bob Stoehr (Chief Financial Officer), along with executives such as Tim Sonnentag (President) and Aimee Therrian (Chief People Officer).
    Who is part of County Materials’s executive team?
    The executive team of County Materials includes leaders such as Bob Stoehr (Chief Financial Officer), Tim Sonnentag (President), Aimee Therrian (Chief People Officer) and other senior executives.
    How many executives does County Materials have?
    County Materials has 4 executives leading key business areas.
    What roles are included in County Materials’s leadership team?
    The leadership team of County Materials includes roles such as Chief Financial Officer, President, Chief People Officer, Manager, Applications & Analytics.