MacLean Power Systems Executive and Leadership Team

June, 2026

Leadership Overview

MacLean Power Systems has 4 executives leading key functions including strategy, finance, technology, and administration.

Driven by a legacy of innovation, MacLean Power Systems is dedicated to manufacturing and supplying essential products for the electric utility, communication, and civil infrastructure sectors, upholding a commitment to quality and reliability.

Leadership Roles at MacLean Power Systems

  • Chief Executive Officer - Michael Plaster
  • Chief Financial Officer - Keith Mayer
  • Chief Financial Officer, Administrative & Financial Director - Marcelo Donatti
  • Chief Technology Officer - Brian Berner
  • Michael Plaster - Chief Executive Officer

    Michael Plaster, the Chief Executive Officer at MacLean Power Systems, directs the company's overall strategic vision and operational execution. Plaster guides the organization's expansion within the electric utility, communication, and civil infrastructure markets, ensuring alignment with its founding principles established in 1925. Overseeing all executive functions, Plaster drives the company's commitment to manufacturing and supplying critical products such as automatic splices, bolted connectors, and surge arresters. This leadership role involves fostering innovation and maintaining the high standards of quality and reliability that define MacLean Power Systems. Michael Plaster ensures that the company's operations in Fort Mill, South Carolina, continue to serve as a hub for industry-leading solutions, impacting infrastructure development across the United States and beyond. The Chief Executive Officer's focus remains on sustainable growth and market leadership.

    Keith Mayer - Chief Financial Officer

    Keith Mayer, the Chief Financial Officer at MacLean Power Systems, manages the company's financial health and strategic fiscal planning. Mayer oversees all financial operations, including budgeting, forecasting, and capital allocation, ensuring robust financial performance for the manufacturing entity. This role involves close collaboration with executive leadership to support the company's mission of supplying essential products for electric utility, communication, and civil infrastructure sectors. Keith Mayer's financial acumen is critical in navigating market dynamics and supporting the company's long-standing reputation for reliability since its establishment in 1925. The Chief Financial Officer's responsibilities extend to optimizing financial strategies that underpin the production of automatic splices, bolted connectors, and surge arresters. Mayer ensures financial discipline across all departments, driving efficiency and supporting sustainable growth initiatives for MacLean Power Systems.
    Keith Mayer

    Marcelo Donatti - Chief Financial Officer, Administrative & Financial Director

    Marcelo Donatti, the Chief Financial Officer, Administrative & Financial Director at MacLean Power Systems, manages critical administrative functions alongside financial oversight. Donatti ensures the efficient operation of administrative processes that support the company's manufacturing and supply chain activities for electric utility, communication, and civil infrastructure products. This dual role involves maintaining fiscal responsibility while optimizing organizational workflows. Marcelo Donatti's contributions are essential for the seamless execution of strategies related to automatic splices, bolted connectors, and surge arresters. The Administrative & Financial Director's focus on operational efficiency complements the company's long-standing commitment to quality and reliability. Donatti's leadership ensures that administrative and financial departments work in concert to drive the success of MacLean Power Systems.
    Marcelo Donatti

    Brian Berner - Chief Technology Officer

    Brian Berner, the Chief Technology Officer at MacLean Power Systems, spearheads the company's technological innovation and product development initiatives. Berner directs the research and development efforts focused on enhancing the performance and reliability of products for the electric utility, communication, and civil infrastructure markets. This leadership position involves translating cutting-edge technology into practical solutions, such as advanced automatic splices, bolted connectors, and surge arresters. Brian Berner ensures that MacLean Power Systems remains at the forefront of technological advancement within its manufacturing sector. The Chief Technology Officer's strategic guidance is vital for maintaining the company's competitive edge and upholding its legacy of quality since 1925. Berner's oversight drives the integration of new technologies to meet evolving industry demands and support the company's operational excellence.

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    Frequently Asked Questions Regarding MacLean Power Systems Top Executives and Leadership Team

    Who leads MacLean Power Systems?
    MacLean Power Systems is led by Michael Plaster (Chief Executive Officer), along with executives such as Keith Mayer (Chief Financial Officer) and Marcelo Donatti (Chief Financial Officer, Administrative & Financial Director).
    Who is part of MacLean Power Systems’s executive team?
    The executive team of MacLean Power Systems includes leaders such as Michael Plaster (Chief Executive Officer), Keith Mayer (Chief Financial Officer), Marcelo Donatti (Chief Financial Officer, Administrative & Financial Director) and other senior executives.
    How many executives does MacLean Power Systems have?
    MacLean Power Systems has 4 executives leading key business areas.
    What roles are included in MacLean Power Systems’s leadership team?
    The leadership team of MacLean Power Systems includes roles such as Chief Executive Officer, Chief Financial Officer, Chief Financial Officer, Administrative & Financial Director, Chief Technology Officer.