IES Holdings Executive and Leadership Team

September, 2026

Leadership Overview

IES Holdings has 4 executives leading key functions including strategy, finance, commercial operations, and communications infrastructure.

Focused on delivering robust electrical and technology systems, IES Holdings maintains a commitment to excellence in infrastructure design and installation across diverse residential and commercial sectors throughout the United States.

Leadership Roles at IES Holdings

  • President & Chief Executive Officer - Matthew Simmes
  • Chief Financial Officer - David Miller
  • President. IES Commercial and Industrial - John Werner
  • Division President, Communications - Donald Fishstein
  • Matthew Simmes - President & Chief Executive Officer

    Matthew Simmes, the President & Chief Executive Officer at IES Holdings, directs the overarching corporate strategy and operational vision for the entire organization. By overseeing the integration of electrical and technology systems, Simmes ensures that the company maintains a competitive edge in the national infrastructure market. This leadership role involves constant collaboration with the Board to drive long-term growth and shareholder value. Matthew Simmes monitors the performance of all business segments, including the complex communications and residential divisions, to guarantee alignment with corporate objectives. Through rigorous oversight of capital allocation and market expansion, Simmes secures the financial health of the enterprise. The President & Chief Executive Officer fosters a culture of technical precision and safety, which remains essential for the successful execution of large-scale electrical projects across the United States. Ultimately, Simmes guides the company toward sustainable profitability and operational excellence.
    Matthew Simmes

    David Miller - Chief Financial Officer

    David Miller, the Chief Financial Officer at IES Holdings, manages the fiscal health and capital structure of the organization. By overseeing financial reporting, budgeting, and risk management, Miller ensures that the company maintains the liquidity required for large-scale infrastructure projects. This leadership role involves coordinating with the executive team to evaluate investment opportunities in the residential and commercial sectors. David Miller drives the development of financial models that support the expansion of electrical and technology services across the United States. Through the implementation of robust internal controls, Miller protects the assets of the firm while optimizing operational efficiency. The Chief Financial Officer provides critical data-driven insights that inform strategic decision-making at the highest levels. By maintaining transparency with investors and stakeholders, Miller upholds the reputation of the company. Ultimately, the Chief Financial Officer secures the financial foundation necessary for continued growth and market leadership.

    John Werner - President. IES Commercial and Industrial

    John Werner, the President. IES Commercial and Industrial at IES Holdings, directs the execution of complex electrical and technology installations for high-tech manufacturing facilities and large-scale commercial buildings. By overseeing the design and maintenance of critical infrastructure, Werner ensures that projects meet the rigorous demands of modern industrial clients. This leadership role involves managing regional operations to deliver high-quality electrical solutions across the United States. John Werner coordinates with project managers to optimize resource allocation and maintain strict safety standards on every job site. Through the application of advanced technical expertise, Werner drives the successful delivery of integrated systems that support the operational needs of corporate and industrial partners. The President. IES Commercial and Industrial monitors project timelines and budgets to ensure maximum efficiency. By fostering strong client relationships, Werner secures repeat business and expands the market footprint of the commercial division.
    John Werner

    Donald Fishstein - Division President, Communications

    Donald Fishstein, the Division President, Communications at IES Holdings, oversees the design, installation, and maintenance of network infrastructure within data centers and managed hosting facilities. By directing the deployment of audio/visual, telephone, and wireless access systems, Fishstein ensures that clients receive reliable connectivity solutions. This leadership role involves managing the technical teams responsible for supporting e-commerce distribution centers and financial institutions across the United States. Donald Fishstein drives the strategic growth of the communications segment by identifying emerging technology trends and integrating them into the service portfolio. Through the management of complex network projects, Fishstein maintains the high standards required for co-location and managed hosting environments. The Division President, Communications coordinates with internal departments to ensure seamless project delivery and client satisfaction. By focusing on innovation and technical precision, Fishstein strengthens the position of the company as a leader in the communications infrastructure market.

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    Frequently Asked Questions Regarding IES Holdings Top Executives and Leadership Team

    Who leads IES Holdings?
    IES Holdings is led by Matthew Simmes (President & Chief Executive Officer), along with executives such as David Miller (Chief Financial Officer) and John Werner (President. IES Commercial and Industrial).
    Who is part of IES Holdings’s executive team?
    The executive team of IES Holdings includes leaders such as Matthew Simmes (President & Chief Executive Officer), David Miller (Chief Financial Officer), John Werner (President. IES Commercial and Industrial) and other senior executives.
    How many executives does IES Holdings have?
    IES Holdings has 4 executives leading key business areas.
    What roles are included in IES Holdings’s leadership team?
    The leadership team of IES Holdings includes roles such as President & Chief Executive Officer, Chief Financial Officer, President. IES Commercial and Industrial, Division President, Communications.