The Walsh Group Executive and Leadership Team

August, 2026

Leadership Overview

The Walsh Group has 8 executives leading key functions including information technology, transportation infrastructure, water systems, investment strategy, and building construction.

Committed to excellence in large-scale infrastructure, The Walsh Group delivers comprehensive design, construction, and financing solutions across North American building, transportation, and water markets.

Leadership Roles at The Walsh Group

  • President-Water Division - Duane Petersen
  • Group President, Walsh Investment - Gregory Ciambrone
  • President, Building Group - Michael Whelan
  • President & Division President, Archer Western & Transportation - Daniel Walsh
  • President - Water Division - Roy Epps
  • President, Heavy Civil Divison - Donald Gillis
  • Chief Information Officer - Timothy Notolli
  • Division Transportation Chief of Staff - Aaron Smith
  • Duane Petersen - President-Water Division

    Duane Petersen, the President-Water Division at The Walsh Group, manages the strategic expansion of water infrastructure projects across diverse regional markets. By overseeing the design and construction of complex water treatment facilities, Petersen ensures the delivery of critical utility services. This leadership role involves cultivating relationships with municipal partners and private stakeholders to secure long-term project pipelines. Duane Petersen drives the implementation of sustainable engineering practices to address evolving environmental regulations. Through the management of specialized technical teams, the President-Water Division maintains operational excellence in every project phase. Petersen coordinates with the broader executive team to align water division goals with the overall corporate mission of infrastructure development. By focusing on technical precision and project reliability, the President-Water Division secures the company's reputation as a leader in the water sector.

    Gregory Ciambrone - Group President, Walsh Investment

    Gregory Ciambrone, the Group President, Walsh Investment at The Walsh Group, architects the financial strategies required to fund and activate large-scale infrastructure projects. By evaluating capital structures and investment risks, Ciambrone ensures the viability of complex public-private partnerships. This leadership role involves managing relationships with financial institutions and investors to secure necessary project funding. Gregory Ciambrone drives the growth of the investment portfolio by identifying high-impact opportunities in the transportation and water sectors. Through the coordination of financial modeling and risk assessment, the Group President, Walsh Investment provides the stability needed for long-term project success. Ciambrone collaborates with other division leaders to integrate financial planning with operational execution. By optimizing the capital allocation process, the Group President, Walsh Investment supports the company's ability to undertake massive, multi-year infrastructure developments across the continent.

    Michael Whelan - President, Building Group

    Michael Whelan, the President, Building Group at The Walsh Group, oversees the execution of commercial and institutional construction projects across North America. By directing project management teams, Whelan ensures that every building initiative meets rigorous safety and quality standards. This leadership role involves managing client expectations and coordinating with architects to deliver complex structures on schedule. Michael Whelan drives the adoption of lean construction methodologies to improve site efficiency and reduce waste. Through the oversight of regional building operations, the President, Building Group maintains a consistent standard of excellence across diverse project types. Whelan collaborates with the executive board to align building group activities with the company's broader market expansion goals. By focusing on operational discipline and client satisfaction, the President, Building Group secures the company's position as a premier builder in the commercial and institutional sectors.
    Michael Whelan

    Daniel Walsh - President & Division President, Archer Western & Transportation

    Daniel Walsh, the President & Division President, Archer Western & Transportation at The Walsh Group, leads the strategic direction of major transportation infrastructure projects. By overseeing the operations of Archer Western, Walsh ensures the successful delivery of highways, bridges, and transit systems. This leadership role involves managing large-scale project portfolios and ensuring compliance with complex regulatory frameworks. Daniel Walsh drives the integration of innovative construction techniques to enhance project durability and performance. Through the coordination of regional teams, the President & Division President, Archer Western & Transportation maintains a strong market presence in the transportation sector. Walsh collaborates with other division heads to leverage shared resources and expertise across the organization. By prioritizing safety and operational efficiency, the President & Division President, Archer Western & Transportation secures the company's reputation for delivering critical infrastructure on time and within budget.

    Roy Epps - President - Water Division

    Roy Epps, the President - Water Division at The Walsh Group, focuses on the operational scaling of water and wastewater treatment projects. By directing field operations and engineering teams, Epps ensures the successful completion of critical utility infrastructure. This leadership role involves managing project lifecycles from initial design through final activation. Roy Epps drives the implementation of advanced water treatment technologies to meet the increasing demands of municipal clients. Through the oversight of regional project performance, the President - Water Division maintains high standards of technical accuracy and safety. Epps coordinates with the executive team to align water division initiatives with the company's long-term growth strategy. By fostering a culture of continuous improvement, the President - Water Division optimizes project delivery and enhances the company's competitive standing in the water infrastructure market across North America.
    Roy Epps

    Donald Gillis - President, Heavy Civil Divison

    Donald Gillis, the President, Heavy Civil Divison at The Walsh Group, manages the execution of massive earthwork and foundation projects essential to heavy civil infrastructure. By directing specialized equipment fleets and site crews, Gillis ensures the structural integrity of complex projects. This leadership role involves overseeing the logistical challenges inherent in large-scale civil engineering developments. Donald Gillis drives the adoption of precision engineering tools to improve site accuracy and project safety. Through the management of regional heavy civil operations, the President, Heavy Civil Divison maintains a consistent output of high-quality infrastructure. Gillis collaborates with other division leaders to ensure that heavy civil projects support the broader goals of the company. By focusing on operational efficiency and technical expertise, the President, Heavy Civil Divison secures the company's ability to handle the most demanding civil engineering challenges in the industry.

    Timothy Notolli - Chief Information Officer

    Timothy Notolli, the Chief Information Officer at The Walsh Group, directs the digital transformation of construction workflows across all regional operations. By architecting scalable cloud infrastructure, Notolli ensures seamless data integration between field teams and corporate headquarters. This leadership role involves securing enterprise-wide networks against cyber threats while optimizing software deployment for complex project management. Timothy Notolli drives the adoption of advanced building information modeling tools to increase operational efficiency. Through the implementation of robust data analytics, the Chief Information Officer provides actionable insights that support executive decision-making. By modernizing legacy systems, Notolli maintains the technological edge necessary for competing in the demanding North American construction landscape. This focus on digital innovation directly enhances project delivery timelines and improves overall resource allocation for the entire organization.

    Aaron Smith - Division Transportation Chief of Staff

    Aaron Smith, the Division Transportation Chief of Staff at The Walsh Group, coordinates strategic initiatives across the transportation sector to ensure alignment with corporate objectives. Overseeing complex project logistics, Smith manages the daily operational flow between regional offices and site managers. This leadership role involves streamlining communication channels to accelerate decision-making during large-scale infrastructure developments. Aaron Smith drives the execution of transportation projects by monitoring performance metrics and resource utilization. By facilitating collaboration between engineering teams and executive leadership, the Division Transportation Chief of Staff maintains high standards of project safety and quality. Smith optimizes internal processes to reduce overhead costs while maximizing output in the competitive transportation market. Through rigorous oversight of project milestones, the Division Transportation Chief of Staff ensures that every initiative meets the stringent requirements of public and private sector clients.

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    Frequently Asked Questions Regarding The Walsh Group Top Executives and Leadership Team

    Who leads The Walsh Group?
    The Walsh Group is led by Duane Petersen (President-Water Division), along with executives such as Gregory Ciambrone (Group President, Walsh Investment) and Michael Whelan (President, Building Group).
    Who is part of The Walsh Group’s executive team?
    The executive team of The Walsh Group includes leaders such as Duane Petersen (President-Water Division), Gregory Ciambrone (Group President, Walsh Investment), Michael Whelan (President, Building Group) and other senior executives.
    How many executives does The Walsh Group have?
    The Walsh Group has 8 executives leading key business areas.
    What roles are included in The Walsh Group’s leadership team?
    The leadership team of The Walsh Group includes roles such as President-Water Division, Group President, Walsh Investment, President, Building Group, President & Division President, Archer Western & Transportation, President - Water Division.