Salas O'Brien Executive and Leadership Team

June, 2026

Leadership Overview

Salas O'Brien has 8 executives leading key functions including strategy, finance, human resources, and operations.

Dedicated to delivering integrated facility planning, design, and construction management, Salas O'Brien drives nationwide project success through expert commissioning and a commitment to client-centric solutions.

Leadership Roles at Salas O'Brien

  • Chief Financial Officer - Diane Mazzadra
  • Chief Financial Officer & Secretary Treasurer - Shawn Lambacher
  • President - Jeffrey Overmyer
  • President - Marks Attwood
  • President - Marilyn Povodator
  • President - Gabriel Reisner
  • Chief Human Resources Officer - Diane Blevins
  • Associate Vice President - Joshua Williams
  • Diane Mazzadra - Chief Financial Officer

    Diane Mazzadra, the Chief Financial Officer at Salas O'Brien, directs all financial operations and strategic fiscal planning. Overseeing budgeting, forecasting, and financial reporting, Mazzadra ensures robust financial health and supports sustainable growth across the company's nationwide offices. This executive function involves managing investment strategies, optimizing capital allocation, and maintaining strong relationships with financial institutions. By implementing rigorous financial controls and driving fiscal discipline, Diane Mazzadra safeguards company assets and enhances profitability. The role requires a comprehensive understanding of the construction and architecture industry's financial dynamics, enabling strategic decision-making that aligns with the company's long-term objectives and market position.

    Shawn Lambacher - Chief Financial Officer & Secretary Treasurer

    Shawn Lambacher, the Chief Financial Officer & Secretary Treasurer at Salas O'Brien, manages comprehensive financial strategy and corporate governance. Overseeing treasury functions, financial reporting, and compliance, Lambacher ensures fiscal integrity and supports strategic expansion initiatives across the company's extensive network. This dual role involves directing capital management, optimizing financial structures, and providing critical financial insights to the board and executive team. By maintaining meticulous financial records and driving efficient resource deployment, Shawn Lambacher directly contributes to the company's operational stability and long-term financial success. The position demands expertise in corporate finance and a keen understanding of the regulatory landscape impacting nationwide construction and design firms.

    Jeffrey Overmyer - President

    Jeffrey Overmyer, the President at Salas O'Brien, directs overarching corporate strategy and operational execution across the firm's nationwide presence. Overseeing all business units, Overmyer drives market expansion and ensures the delivery of integrated facility planning, design, and construction management services. This leadership role involves fostering innovation, cultivating client relationships, and guiding the executive team to achieve strategic objectives. By championing the company's mission and upholding its commitment to excellence, Jeffrey Overmyer significantly influences Salas O'Brien's market position and sustained success. The presidency demands a comprehensive understanding of the industry's complexities and a visionary approach to leading a diverse, geographically dispersed organization.

    Marks Attwood - President

    Marks Attwood, the President at Salas O'Brien, spearheads strategic growth and operational excellence for the organization's extensive network. Overseeing key business development initiatives and client engagement, Attwood ensures the seamless delivery of comprehensive facility planning, design, and construction management solutions nationwide. This executive position involves driving market penetration, fostering strategic partnerships, and guiding cross-functional teams toward achieving ambitious corporate goals. By championing the company's core values and commitment to innovation, Marks Attwood plays a pivotal role in enhancing Salas O'Brien's reputation and expanding its service capabilities. The leadership focus is on maximizing operational efficiency and client satisfaction across all project portfolios.

    Marilyn Povodator - President

    Marilyn Povodator, the President at Salas O'Brien, directs strategic vision and operational oversight for the company's nationwide endeavors. Overseeing critical business functions, Povodator ensures the effective integration of facility planning, design, construction management, and commissioning services. This leadership capacity involves guiding executive decision-making, fostering a culture of continuous improvement, and strengthening client partnerships across diverse markets. By championing the firm's commitment to quality and innovation, Marilyn Povodator significantly contributes to Salas O'Brien's sustained growth and industry leadership. The role requires a deep understanding of the construction lifecycle and a strategic approach to managing complex, large-scale projects.
    Marilyn Povodator

    Gabriel Reisner - President

    Gabriel Reisner, the President at Salas O'Brien, drives the strategic direction and operational performance of the firm's nationwide operations. Overseeing all aspects of business development and service delivery, Reisner ensures the consistent provision of expert facility planning, design, and construction management. This executive responsibility includes cultivating key client relationships, leading organizational transformation, and optimizing resource allocation to meet market demands. By championing innovation and operational efficiency, Gabriel Reisner significantly enhances Salas O'Brien's competitive advantage and project success rates. The focus remains on delivering integrated solutions that meet the evolving needs of clients across the construction and architecture landscape.

    Diane Blevins - Chief Human Resources Officer

    Diane Blevins, the Chief Human Resources Officer at Salas O'Brien, leads all human capital strategies and organizational development initiatives. Overseeing talent acquisition, employee relations, and compensation programs, Blevins cultivates a high-performance culture that supports the company's nationwide operations. This executive function involves developing and implementing HR policies that align with business objectives, ensuring compliance, and fostering employee engagement. By championing professional development and promoting a supportive work environment, Diane Blevins directly enhances the company's ability to attract and retain top talent in the competitive construction and architecture sector. The role is crucial for aligning workforce capabilities with strategic goals and driving operational excellence across all Salas O'Brien offices.

    Joshua Williams - Associate Vice President

    Joshua Williams, the Associate Vice President at Salas O'Brien, directs critical operational initiatives across the organization. Overseeing project execution, Williams ensures adherence to design specifications and construction timelines, directly impacting client satisfaction and project profitability. This leadership position involves coordinating cross-functional teams to deliver comprehensive facility solutions, from initial planning through final commissioning. By managing resource allocation and mitigating project risks, Joshua Williams drives efficiency and maintains the high standards Salas O'Brien is known for nationwide. The role demands a deep understanding of construction management principles and the ability to translate complex client needs into actionable project plans, ensuring seamless integration of design and build phases.

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    Frequently Asked Questions Regarding Salas O'Brien Top Executives and Leadership Team

    Who leads Salas O'Brien?
    Salas O'Brien is led by Diane Mazzadra (Chief Financial Officer), along with executives such as Shawn Lambacher (Chief Financial Officer & Secretary Treasurer) and Jeffrey Overmyer (President).
    Who is part of Salas O'Brien’s executive team?
    The executive team of Salas O'Brien includes leaders such as Diane Mazzadra (Chief Financial Officer), Shawn Lambacher (Chief Financial Officer & Secretary Treasurer), Jeffrey Overmyer (President) and other senior executives.
    How many executives does Salas O'Brien have?
    Salas O'Brien has 8 executives leading key business areas.
    What roles are included in Salas O'Brien’s leadership team?
    The leadership team of Salas O'Brien includes roles such as Chief Financial Officer, Chief Financial Officer & Secretary Treasurer, President, President, President.