Eliassen Group Executive and Leadership Team

November, 2026

Leadership Overview

Eliassen Group has 10 executives leading key functions including strategy, financial oversight, operational management, legal compliance, and specialized consulting divisions.

Focused on delivering transformative business and IT solutions, Eliassen Group empowers clients to execute complex strategies that drive exceptional outcomes across diverse global markets.

Leadership Roles at Eliassen Group

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

    David MacKeen, the Chief Executive Officer at Eliassen Group, directs the overarching corporate strategy and long-term vision for the organization. MacKeen architects high-level business initiatives that align IT consulting services with client transformation goals. By fostering a culture of excellence, the Chief Executive Officer ensures that all divisions maintain a competitive edge in the professional services landscape. MacKeen oversees the integration of new service lines while maintaining the firm's reputation for delivering exceptional outcomes. This leadership role involves constant engagement with the Board to refine market positioning and drive sustainable growth. Through rigorous oversight of organizational performance, David MacKeen secures the company's status as a premier partner for businesses seeking complex strategic execution. The Chief Executive Officer remains dedicated to scaling operations across North American markets to meet evolving client demands.
    David MacKeen

    Marc Cirrone - Chief Financial Officer

    Marc Cirrone, the Chief Financial Officer at Eliassen Group, manages the fiscal health and capital allocation strategies of the firm. Cirrone directs financial planning, reporting, and risk management processes to support the company's consulting operations. By analyzing market trends, the Chief Financial Officer optimizes resource distribution to fuel expansion in IT and business services. Marc Cirrone maintains strict adherence to regulatory standards while providing the executive team with actionable data for decision-making. This role involves close collaboration with department heads to ensure budget alignment with strategic objectives. Through precise financial modeling, Cirrone strengthens the balance sheet and supports long-term investment in talent and technology. The Chief Financial Officer drives fiscal discipline across all regional operations, ensuring that the firm remains agile in a volatile economic environment while consistently delivering value to stakeholders.

    James Polonczyk - Chief Financial Officer & General Counsel

    James Polonczyk, the Chief Financial Officer & General Counsel at Eliassen Group, oversees corporate governance and financial compliance. Polonczyk directs the legal aspects of financial transactions, ensuring that all fiscal activities align with regulatory requirements. By managing the intersection of finance and law, the Chief Financial Officer & General Counsel protects the firm's assets and reputation. James Polonczyk provides legal guidance on mergers, acquisitions, and strategic investments that drive the company's growth. This role involves auditing financial structures to ensure transparency and accountability across all business units. Through the integration of legal expertise into financial planning, Polonczyk minimizes risk and enhances the firm's ability to execute long-term strategies. The Chief Financial Officer & General Counsel drives financial integrity by maintaining rigorous oversight of all legal and fiscal matters within the organization.

    Delores Lenzy-Jones - Chief Financial Officer & Partner

    Delores Lenzy-Jones, the Chief Financial Officer & Partner at Eliassen Group, focuses on long-term capital strategy and equity management. Lenzy-Jones directs the firm's investment initiatives to ensure sustainable growth in the consulting sector. By leveraging the status of a partner, the Chief Financial Officer & Partner influences the strategic direction of the company and fosters relationships with key stakeholders. Delores Lenzy-Jones oversees the financial health of the partnership, ensuring that capital is deployed effectively to support innovation in IT services. This role involves high-level financial planning and the cultivation of long-term value for the firm. Through the alignment of financial goals with partnership objectives, Lenzy-Jones drives the company's market impact. The Chief Financial Officer & Partner ensures that the organization maintains a strong financial foundation while pursuing ambitious expansion goals in the competitive consulting landscape.
    Delores Lenzy-Jones

    Jill Mattingly - Chief Financial Officer, Consulting

    Jill Mattingly, the Chief Financial Officer, Consulting at Eliassen Group, manages the financial performance of the consulting division. Mattingly directs the budgeting and revenue forecasting processes specifically for the firm's service-based business lines. By analyzing the profitability of individual consulting engagements, the Chief Financial Officer, Consulting optimizes the allocation of human capital and technical resources. Jill Mattingly provides the consulting leadership team with the financial insights necessary to drive project success and client satisfaction. This role involves monitoring margins and ensuring that service delivery remains cost-effective. Through the rigorous management of consulting finances, Mattingly supports the firm's ability to provide high-value solutions to clients. The Chief Financial Officer, Consulting drives financial efficiency by aligning project-level performance with the broader economic objectives of the organization, ensuring that the consulting division remains a primary engine for growth.

    David Viani - Chief Operating Officer

    David Viani, the Chief Operating Officer at Eliassen Group, focuses on internal scaling and the optimization of service delivery frameworks. Viani directs the operational infrastructure required to support complex IT consulting engagements. By streamlining internal processes, the Chief Operating Officer enhances the efficiency of project execution for clients undergoing digital transformation. David Viani monitors key performance indicators to ensure that service quality remains consistent across all business units. This leadership role involves coordinating with cross-functional teams to remove bottlenecks and improve resource utilization. Through the implementation of scalable systems, Viani supports the firm's ability to handle increased demand in the technology sector. The Chief Operating Officer drives operational excellence by refining workflows and ensuring that the organization remains responsive to the dynamic needs of the modern business landscape.
    David Viani

    Todd Keebaugh - Chief Operating Officer & General Counsel

    Todd Keebaugh, the Chief Operating Officer & General Counsel at Eliassen Group, manages supply chain logistics and vendor partnerships to ensure seamless service delivery. Keebaugh directs the procurement strategies that support the firm's IT consulting projects. By overseeing the legal framework of these operational partnerships, the Chief Operating Officer & General Counsel mitigates risk and ensures compliance with industry standards. Todd Keebaugh integrates legal oversight into the operational lifecycle to protect the firm's interests during complex client engagements. This role involves negotiating high-stakes contracts and managing the regulatory environment in which the company operates. Through the alignment of operational efficiency and legal integrity, Keebaugh supports the firm's ability to scale its service offerings. The Chief Operating Officer & General Counsel drives stability by ensuring that all logistical operations adhere to the highest standards of corporate governance.

    Taz Stephens - President, Technology & Life Sciences Divisions

    Taz Stephens, the President, Technology & Life Sciences Divisions at Eliassen Group, directs the strategic growth of the firm's most specialized sectors. Stephens oversees the development of service offerings tailored to the unique needs of the technology and life sciences industries. By driving innovation in these divisions, the President, Technology & Life Sciences Divisions ensures that the firm remains at the forefront of digital transformation and scientific advancement. Taz Stephens manages the talent acquisition and service delivery teams that support clients in these high-growth markets. This role involves identifying emerging trends and aligning the firm's capabilities with the evolving demands of the sector. Through the expansion of these divisions, Stephens contributes significantly to the company's overall revenue and market presence. The President, Technology & Life Sciences Divisions drives excellence by fostering deep industry expertise and delivering specialized solutions that solve complex client challenges.

    Kerry Barrett - President, Business Advisory Solutions

    Kerry Barrett, the President, Business Advisory Solutions at Eliassen Group, directs the firm's strategic consulting and advisory services. Barrett oversees the development of frameworks that help clients navigate organizational change and operational improvement. By leading the advisory team, the President, Business Advisory Solutions ensures that the firm provides actionable insights that drive business performance. Kerry Barrett manages the delivery of high-level consulting engagements that address complex management challenges. This role involves collaborating with other C-suite leaders to integrate advisory services into the broader portfolio of the company. Through the expansion of the advisory practice, Barrett enhances the firm's ability to support clients in achieving long-term strategic goals. The President, Business Advisory Solutions drives market impact by delivering expert guidance that enables organizations to transform their operations and achieve exceptional outcomes in a competitive global environment.
    Kerry Barrett

    Christine Luke - Chief of Staff

    Christine Luke, the Chief of Staff at Eliassen Group, facilitates communication and strategic alignment between the executive leadership team and the broader organization. Luke directs special projects that bridge the gap between corporate strategy and daily operational execution. By managing the flow of information to the Chief Executive Officer, the Chief of Staff ensures that critical business priorities receive immediate attention. Christine Luke coordinates cross-departmental initiatives to maintain focus on the firm's core mission of providing high-impact consulting services. This role involves synthesizing complex data into actionable insights for the leadership team. Through proactive management of organizational rhythms, Luke enhances the effectiveness of the C-suite. The Chief of Staff drives internal cohesion, ensuring that all business units remain synchronized with the overarching goals of the company while navigating the complexities of the IT services market.

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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 James Polonczyk (Chief Financial Officer & General Counsel).
    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), James Polonczyk (Chief Financial Officer & General Counsel) 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 & General Counsel, Chief Financial Officer & Partner, Chief Financial Officer, Consulting.