IES Holdings Executive and Leadership Team

August, 2026

Leadership Overview

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

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

Leadership Roles at IES Holdings

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

    Matthew Simmes, the Chief Executive Officer & President at IES Holdings, directs the overarching corporate strategy and operational vision for the entire organization. By aligning the design and installation of integrated electrical systems with long-term growth objectives, Simmes ensures consistent market expansion across the United States. The Chief Executive Officer & President manages high-level interactions with the Board to maintain fiscal health and operational excellence. Through the oversight of diverse business segments, Simmes drives the integration of technology services into critical infrastructure projects. This leadership role involves evaluating market trends in data center network infrastructure and residential solar power to optimize service delivery. Matthew Simmes maintains a focus on scaling the company's footprint in e-commerce distribution centers and high-tech manufacturing facilities. Ultimately, Simmes secures the competitive positioning of the firm by fostering innovation in electrical and technology systems.
    Matthew Simmes

    David Miller - Chief Financial Officer

    David Miller, the Chief Financial Officer at IES Holdings, manages the financial architecture and capital allocation strategies necessary for supporting large-scale electrical and technology installations. Overseeing the fiscal health of the organization, the Chief Financial Officer monitors revenue streams from both the Communications and Residential segments to ensure profitability. Miller directs the financial reporting processes and risk management frameworks that protect the company's assets during complex infrastructure projects. By analyzing the economic viability of new solar power installations and data center network contracts, David Miller provides the data-driven insights required for strategic decision-making. The Chief Financial Officer collaborates with executive leadership to optimize operational budgets and improve margins across all regional markets. Through rigorous financial planning, Miller supports the sustainable growth of the company's diverse service portfolio while maintaining strict compliance with industry standards and regulatory requirements.

    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 projects within the commercial and industrial sectors. Overseeing the deployment of integrated systems for healthcare, financial, and educational facilities, the President. IES Commercial and Industrial ensures that all installations meet rigorous safety and performance benchmarks. Werner manages the operational teams responsible for delivering high-tech manufacturing solutions and large-scale electrical infrastructure. By coordinating with project managers and field technicians, John Werner drives efficiency in the delivery of critical building systems. This leadership role involves expanding the company's reach in the commercial market through superior service quality and technical expertise. Werner maintains a focus on operational excellence to support the firm's reputation for reliability in the construction industry. Ultimately, the President. IES Commercial and Industrial secures project success by aligning technical capabilities with client requirements.
    John Werner

    Donald Fishstein - Division President, Communications

    Donald Fishstein, the Division President, Communications at IES Holdings, directs the design, installation, and maintenance of network infrastructure for data centers and managed hosting environments. Overseeing the specialized teams responsible for audio/visual, fire, and wireless access systems, the Division President, Communications ensures seamless connectivity for corporate and e-commerce clients. Fishstein manages the strategic growth of the communications segment by identifying emerging needs in data network systems and intrusion alarm technology. By optimizing service delivery across diverse building types, Donald Fishstein drives the expansion of the company's footprint in the technology infrastructure market. This leadership role involves coordinating with technical staff to maintain high standards of system performance and reliability. Fishstein monitors the competitive landscape to ensure the division remains at the forefront of network infrastructure solutions. Ultimately, the Division President, Communications secures long-term client partnerships through consistent technical innovation and operational precision.

    Explore Leadership Teams in Construction Management

    Frequently Asked Questions Regarding IES Holdings Top Executives and Leadership Team

    Who leads IES Holdings?
    IES Holdings is led by Matthew Simmes (Chief Executive Officer & President), 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 (Chief Executive Officer & President), 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 Chief Executive Officer & President, Chief Financial Officer, President. IES Commercial and Industrial, Division President, Communications.