Syska Hennessy Group Executive and Leadership Team

July, 2026

Leadership Overview

Syska Hennessy Group has 6 executives leading key functions including strategy, marketing, finance, human resources, legal, and administration.

Driven by a legacy of engineering excellence, Syska Hennessy Group is dedicated to providing comprehensive MEP, ICT, and commissioning engineering services. The firm's leadership philosophy centers on innovation, client collaboration, and sustainable design, solidifying its market impact in government and commercial sectors.

Leadership Roles at Syska Hennessy Group

  • Executive Administrator To President and Chief Executive Officer - Diane Oleski
  • President & Chief Executive Officer - Cyrus Izzo
  • Chief Financial Officer & Associate Partner - Darren Alfano
  • Chief Marketing Officer - Michelle Guilbeault
  • Chief Human Resources Officer - Patricia Dreste
  • General Counsel - Anjanette Bobrow
  • Diane Oleski - Executive Administrator To President and Chief Executive Officer

    Diane Oleski, the Executive Administrator To President and Chief Executive Officer at Syska Hennessy Group, provides critical operational support. Oleski manages the executive office, ensuring seamless workflow and efficient communication for the President and Chief Executive Officer. This role involves coordinating schedules, preparing essential documentation, and facilitating key meetings that drive strategic initiatives. By maintaining organized executive operations, Oleski directly contributes to the effective functioning of Syska Hennessy Group's highest leadership levels. The administrator's meticulous attention to detail ensures that executive priorities are addressed promptly and effectively, supporting the company's mission to deliver expert engineering solutions across government and commercial projects. Diane Oleski's function is vital for maintaining the momentum of the company's strategic direction and operational execution.

    Cyrus Izzo - President & Chief Executive Officer

    Cyrus Izzo, the President & Chief Executive Officer at Syska Hennessy Group, directs the overall strategy and operational execution of the firm. Izzo guides the company's vision, ensuring its full-service MEP, information and communication technology, and commissioning engineering services meet the evolving needs of government and commercial clients. This leadership position involves fostering a culture of innovation and client-centric solutions, critical for maintaining Syska Hennessy Group's market leadership since its founding in 1928. By overseeing all facets of the business, Cyrus Izzo ensures alignment with corporate objectives and drives sustainable growth. The President & Chief Executive Officer's responsibilities extend to cultivating key client relationships and championing the firm's commitment to engineering excellence. Through strategic decision-making, Izzo shapes the company's trajectory, reinforcing its reputation for delivering high-quality engineering across diverse projects.
    Cyrus Izzo

    Darren Alfano - Chief Financial Officer & Associate Partner

    Darren Alfano, the Chief Financial Officer & Associate Partner at Syska Hennessy Group, manages the company's financial health and strategic fiscal planning. Alfano oversees all financial operations, including budgeting, forecasting, and investment strategies, ensuring robust financial stability for the engineering firm. This critical role involves optimizing resource allocation to support Syska Hennessy Group's extensive project portfolio across government and commercial sectors. By providing insightful financial analysis, Darren Alfano enables informed decision-making across all departments. The Chief Financial Officer & Associate Partner's responsibilities also encompass risk management and ensuring compliance with all financial regulations. Alfano's expertise is fundamental to sustaining the company's growth and profitability, underpinning its capacity to deliver complex MEP, ICT, and commissioning engineering solutions.
    Darren Alfano

    Michelle Guilbeault - Chief Marketing Officer

    Michelle Guilbeault, the Chief Marketing Officer at Syska Hennessy Group, architects and executes comprehensive marketing strategies. Guilbeault drives brand visibility and market penetration for the firm's specialized engineering services, targeting both government and commercial sectors. This role involves developing compelling narratives around Syska Hennessy Group's expertise in MEP, ICT, and commissioning engineering. By leading market research and campaign development, Michelle Guilbeault ensures that the company's value proposition resonates with prospective clients and stakeholders. The Chief Marketing Officer's focus is on enhancing client engagement and expanding the firm's reach through targeted outreach and digital initiatives. Guilbeault's leadership ensures that Syska Hennessy Group's innovative solutions and long-standing reputation are effectively communicated to the market, supporting business development objectives.

    Patricia Dreste - Chief Human Resources Officer

    Patricia Dreste, the Chief Human Resources Officer at Syska Hennessy Group, leads all human capital strategies and talent management initiatives. Dreste cultivates a high-performance work environment, essential for attracting and retaining the specialized engineering talent required for MEP, ICT, and commissioning projects. This position involves developing and implementing policies that support employee growth, engagement, and well-being across the organization. By overseeing recruitment, compensation, and professional development programs, Patricia Dreste ensures that Syska Hennessy Group possesses the skilled workforce necessary to meet client demands. The Chief Human Resources Officer's strategic focus is on aligning HR practices with the company's overarching business objectives, fostering a culture of excellence and collaboration. Dreste's leadership is key to maintaining the firm's competitive edge through its people.
    Patricia Dreste

    Anjanette Bobrow - General Counsel

    Anjanette Bobrow, the General Counsel at Syska Hennessy Group, provides expert legal guidance and oversees all corporate legal affairs. Bobrow ensures that the firm operates in full compliance with all applicable laws and regulations, safeguarding Syska Hennessy Group's interests in its government and commercial engagements. This role involves managing contracts, mitigating legal risks, and advising leadership on complex legal matters related to engineering projects. By directing the legal strategy, Anjanette Bobrow supports the firm's operational integrity and contractual obligations. The General Counsel's responsibilities include navigating the legal landscape of the construction and technology sectors, ensuring robust protection for the company's assets and reputation. Bobrow's counsel is integral to the successful execution of all projects and the sustained growth of the firm.

    Explore Leadership Teams in Architecture, Engineering & Design

    Frequently Asked Questions Regarding Syska Hennessy Group Top Executives and Leadership Team

    Who leads Syska Hennessy Group?
    Syska Hennessy Group is led by Diane Oleski (Executive Administrator To President and Chief Executive Officer), along with executives such as Cyrus Izzo (President & Chief Executive Officer) and Darren Alfano (Chief Financial Officer & Associate Partner).
    Who is part of Syska Hennessy Group’s executive team?
    The executive team of Syska Hennessy Group includes leaders such as Diane Oleski (Executive Administrator To President and Chief Executive Officer), Cyrus Izzo (President & Chief Executive Officer), Darren Alfano (Chief Financial Officer & Associate Partner) and other senior executives.
    How many executives does Syska Hennessy Group have?
    Syska Hennessy Group has 6 executives leading key business areas.
    What roles are included in Syska Hennessy Group’s leadership team?
    The leadership team of Syska Hennessy Group includes roles such as Executive Administrator To President and Chief Executive Officer, President & Chief Executive Officer, Chief Financial Officer & Associate Partner, Chief Marketing Officer, Chief Human Resources Officer.