Eliassen Group Executive and Leadership Team

August, 2026

Leadership Overview

Eliassen Group has 10 executives leading key functions including strategy, financial oversight, operational management, and business advisory solutions.

Committed to delivering transformative IT and business consulting services, Eliassen Group empowers organizations to execute complex strategies and achieve exceptional market outcomes through expert guidance.

Leadership Roles at Eliassen Group

  • Chief Executive Officer - David MacKeen
  • Chief Financial Officer - Marc Cirrone
  • Chief Financial Officer, Consulting - Jill Mattingly
  • Chief Financial Officer & General Counsel - James Polonczyk
  • Chief Financial Officer & Partner - Delores Lenzy-Jones
  • Chief Operating Officer - David Viani
  • Chief Operating Officer & General Counsel - Todd Keebaugh
  • President, Business Advisory Solutions - Kerry Barrett
  • President, Technology Solutions - Taz Stephens
  • Chief of Staff - Christine Luke
  • David MacKeen - Chief Executive Officer

    David MacKeen, the Chief Executive Officer at Eliassen Group, directs the overarching strategic vision and long-term growth trajectory of the firm. By aligning business and IT consulting services with evolving client needs, MacKeen ensures the organization maintains a competitive edge in the professional services landscape. This leadership role involves constant collaboration with the Board to refine service delivery models and expand market reach across North America. David MacKeen prioritizes the cultivation of a high-performance culture that supports complex digital transformation initiatives for diverse enterprise clients. Through rigorous oversight of corporate objectives, the Chief Executive Officer drives operational excellence and sustainable value creation. By fostering innovation within the consulting framework, the firm consistently delivers measurable results for partners. Ultimately, the Chief Executive Officer secures the company's position as a premier provider of strategic business solutions.
    David MacKeen

    Marc Cirrone - Chief Financial Officer

    Marc Cirrone, the Chief Financial Officer at Eliassen Group, manages the fiscal health and capital allocation strategies necessary for sustained corporate expansion. Overseeing financial planning, reporting, and risk management, the Chief Financial Officer ensures the firm maintains robust liquidity to support ongoing investments in IT consulting talent and infrastructure. This role requires close coordination with executive leadership to optimize resource distribution across various service lines. Marc Cirrone monitors economic trends to mitigate potential market volatility, thereby protecting the long-term financial stability of the organization. By implementing advanced analytical frameworks, the Chief Financial Officer enhances transparency and accountability throughout the business. This financial stewardship supports the broader mission of delivering high-impact consulting services to clients. Through disciplined fiscal governance, the Chief Financial Officer enables the firm to scale operations effectively while maintaining a strong balance sheet.

    Jill Mattingly - Chief Financial Officer, Consulting

    Jill Mattingly, the Chief Financial Officer, Consulting at Eliassen Group, specializes in the financial performance of the firm's consulting divisions. By analyzing revenue streams and project profitability, the Chief Financial Officer, Consulting ensures that each service line contributes effectively to the company's overall financial health. This role involves developing pricing strategies that reflect the value of specialized IT and business services. Jill Mattingly works closely with practice leaders to forecast demand and allocate resources to high-growth areas. By monitoring the financial metrics of individual consulting engagements, the Chief Financial Officer, Consulting identifies opportunities for margin improvement and operational efficiency. This focused financial oversight allows the firm to maintain a competitive pricing structure while delivering high-quality outcomes. Through precise financial modeling and performance tracking, the Chief Financial Officer, Consulting supports the strategic objectives of the consulting business units.

    James Polonczyk - Chief Financial Officer & General Counsel

    James Polonczyk, the Chief Financial Officer & General Counsel at Eliassen Group, directs the firm's financial strategy while simultaneously overseeing corporate legal affairs. This unique combination of responsibilities allows for the seamless integration of fiscal planning and risk management. The Chief Financial Officer & General Counsel ensures that all financial transactions adhere to strict regulatory requirements, thereby protecting the firm's assets and reputation. James Polonczyk manages the capital structure and legal documentation for major corporate initiatives, including potential mergers or strategic partnerships. By aligning financial goals with legal safeguards, the Chief Financial Officer & General Counsel creates a stable foundation for long-term growth. This role involves constant interaction with external auditors and legal counsel to maintain compliance. Through this integrated leadership, the Chief Financial Officer & General Counsel provides the firm with the necessary security to pursue aggressive market expansion and innovation.

    Delores Lenzy-Jones - Chief Financial Officer & Partner

    Delores Lenzy-Jones, the Chief Financial Officer & Partner at Eliassen Group, drives the firm's financial strategy while participating in high-level ownership decisions. As a Partner, the Chief Financial Officer & Partner influences the long-term direction of the company, ensuring that financial policies support the firm's mission of delivering exceptional consulting outcomes. This role involves managing investor relations and overseeing the financial health of the partnership. Delores Lenzy-Jones evaluates investment opportunities that align with the firm's core competencies in IT and business services. By balancing the interests of stakeholders with the operational needs of the business, the Chief Financial Officer & Partner maintains a focus on sustainable growth. This leadership position requires a deep understanding of both the financial and strategic aspects of the consulting industry. Through prudent financial management and strategic partnership, the Chief Financial Officer & Partner secures the firm's future success.
    Delores Lenzy-Jones

    David Viani - Chief Operating Officer

    David Viani, the Chief Operating Officer at Eliassen Group, architects the internal operational frameworks required to scale service delivery across the firm's consulting portfolio. Focusing primarily on internal process optimization and workforce management, the Chief Operating Officer ensures that the organization maintains the agility needed to support large-scale IT transformations. This role involves refining the systems that govern project execution and resource deployment. David Viani collaborates with department heads to standardize best practices, thereby enhancing the quality and consistency of client outcomes. By driving operational efficiency, the Chief Operating Officer enables the firm to maximize productivity while maintaining high standards of service. This leadership function supports the company's broader mission by ensuring that internal capabilities match the complexity of client requirements. Through continuous improvement of operational workflows, the Chief Operating Officer sustains the firm's competitive advantage in the consulting market.
    David Viani

    Todd Keebaugh - Chief Operating Officer & General Counsel

    Todd Keebaugh, the Chief Operating Officer & General Counsel at Eliassen Group, manages the intersection of operational logistics and legal compliance. While the Chief Operating Officer role focuses on supply chain and vendor management, the General Counsel responsibilities involve mitigating legal risks associated with complex consulting contracts and corporate governance. This dual-focus leadership ensures that the firm's expansion efforts remain compliant with regulatory standards across all operating regions. Todd Keebaugh oversees the legal framework that protects the company's intellectual property and contractual interests. By integrating legal foresight into operational planning, the Chief Operating Officer & General Counsel prevents potential liabilities that could impede growth. This role requires balancing the need for rapid service deployment with the necessity of rigorous risk assessment. Through this comprehensive approach, the Chief Operating Officer & General Counsel safeguards the firm's reputation and operational integrity.

    Kerry Barrett - President, Business Advisory Solutions

    Kerry Barrett, the President, Business Advisory Solutions at Eliassen Group, leads the strategic development and delivery of business consulting services. By focusing on organizational transformation and strategy execution, the President, Business Advisory Solutions ensures that clients receive actionable insights that drive measurable business outcomes. This role involves overseeing a team of consultants who specialize in helping enterprises navigate complex market challenges. Kerry Barrett cultivates relationships with key clients to understand their unique needs and tailor advisory solutions accordingly. By staying ahead of industry trends, the President, Business Advisory Solutions positions the firm as a thought leader in the business consulting space. This leadership function supports the company's mission by providing the expertise necessary for clients to achieve operational excellence. Through the development of innovative advisory frameworks, the President, Business Advisory Solutions expands the firm's influence and market impact.
    Kerry Barrett

    Taz Stephens - President, Technology Solutions

    Taz Stephens, the President, Technology Solutions at Eliassen Group, directs the firm's IT services and digital transformation initiatives. By overseeing the delivery of scalable technology solutions, the President, Technology Solutions ensures that clients leverage modern infrastructure to achieve their strategic goals. This role involves managing a diverse team of technical experts who implement complex software and cloud-based systems. Taz Stephens collaborates with other executive leaders to integrate technology solutions with broader business advisory services, creating a holistic approach to client success. By focusing on emerging technologies, the President, Technology Solutions keeps the firm at the forefront of the IT consulting market. This leadership position directly impacts the company's ability to deliver high-value technical outcomes for enterprise clients. Through the strategic deployment of technology, the President, Technology Solutions drives innovation and operational efficiency across the firm's entire service portfolio.

    Christine Luke - Chief of Staff

    Christine Luke, the Chief of Staff at Eliassen Group, synchronizes cross-functional initiatives and streamlines communication between the executive team and internal departments. By facilitating the execution of strategic priorities, the Chief of Staff ensures that organizational goals remain aligned with the firm's commitment to excellence in IT and business consulting. This role involves managing complex projects that span multiple service divisions, requiring a deep understanding of operational workflows. Christine Luke optimizes internal processes to increase efficiency and foster collaboration across the enterprise. By serving as a central point of coordination, the Chief of Staff enables leadership to focus on high-level decision-making and client-facing strategy. This position directly impacts the firm's ability to respond rapidly to market demands. Through meticulous planning and execution, the Chief of Staff drives the operational rhythm necessary for the company to achieve its ambitious growth targets.

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    Frequently Asked Questions Regarding Eliassen Group Top Executives and Leadership Team

    Who leads Eliassen Group?
    Eliassen Group is led by David MacKeen (Chief Executive Officer), along with executives such as Marc Cirrone (Chief Financial Officer) and Jill Mattingly (Chief Financial Officer, Consulting).
    Who is part of Eliassen Group’s executive team?
    The executive team of Eliassen Group includes leaders such as David MacKeen (Chief Executive Officer), Marc Cirrone (Chief Financial Officer), Jill Mattingly (Chief Financial Officer, Consulting) and other senior executives.
    How many executives does Eliassen Group have?
    Eliassen Group has 10 executives leading key business areas.
    What roles are included in Eliassen Group’s leadership team?
    The leadership team of Eliassen Group includes roles such as Chief Executive Officer, Chief Financial Officer, Chief Financial Officer, Consulting, Chief Financial Officer & General Counsel, Chief Financial Officer & Partner.