Syska Hennessy Group Executive and Leadership Team

July, 2026

Leadership Overview

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

Driven by a legacy of engineering excellence, Syska Hennessy Group is dedicated to providing comprehensive MEP, ICT, and commissioning engineering services for government and commercial clients, shaping the built environment with innovative and sustainable solutions.

Leadership Roles at Syska Hennessy Group

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

    Cyrus Izzo, the President & Chief Executive Officer at Syska Hennessy Group, directs the firm's overall strategic vision and operational execution. Izzo guides the company's expansion into new markets and service areas, ensuring alignment with the evolving needs of government and commercial sectors. Overseeing all major business units, Izzo fosters a culture of innovation and client-centric service delivery. This leadership role involves setting financial targets, driving profitability, and maintaining the highest standards of engineering integrity. By championing new technologies and sustainable practices, Cyrus Izzo ensures Syska Hennessy Group remains at the forefront of MEP, ICT, and commissioning engineering, solidifying its reputation as a trusted partner in complex projects across the United States.
    Cyrus Izzo

    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 administrative and operational support to the firm's highest leadership. Oleski manages complex scheduling, coordinates executive communications, and facilitates the smooth flow of information between the President and Chief Executive Officer and other key stakeholders. This role involves preparing essential documentation, organizing executive meetings, and ensuring efficient workflow within the leadership office. By maintaining meticulous records and proactively addressing logistical challenges, Diane Oleski enables the President and Chief Executive Officer to focus on strategic initiatives and company-wide direction. Oleski's support is vital for the effective functioning of Syska Hennessy Group's executive operations.

    Darren Alfano - Chief Financial Officer & Associate Partner

    Darren Alfano, the Chief Financial Officer & Associate Partner at Syska Hennessy Group, directs the company's financial strategy, planning, and reporting. Alfano oversees all fiscal operations, including budgeting, forecasting, treasury, and risk management, ensuring the financial health and stability of the firm. This critical role involves managing investment strategies, optimizing capital allocation, and ensuring compliance with all financial regulations for government and commercial projects. By providing insightful financial analysis and strategic guidance, Darren Alfano supports informed decision-making across all business units. Alfano's leadership ensures robust financial controls and drives sustainable profitability, underpinning Syska Hennessy Group's capacity for continued growth and project execution.
    Darren Alfano

    Michelle Guilbeault - Chief Marketing Officer

    Michelle Guilbeault, the Chief Marketing Officer at Syska Hennessy Group, architects and executes the company's comprehensive marketing and brand strategy. Guilbeault drives initiatives to enhance market visibility, generate qualified leads, and strengthen client relationships across government and commercial sectors. Overseeing all aspects of brand management, digital marketing, public relations, and business development support, Guilbeault ensures consistent messaging and impactful outreach. This leadership position involves analyzing market trends, identifying growth opportunities, and developing targeted campaigns that resonate with diverse client needs. By fostering collaboration between marketing, sales, and technical teams, Michelle Guilbeault amplifies Syska Hennessy Group's value proposition and supports sustained business growth.

    Patricia Dreste - Chief Human Resources Officer

    Patricia Dreste, the Chief Human Resources Officer at Syska Hennessy Group, leads the development and implementation of all human capital strategies. Dreste oversees talent acquisition, employee relations, compensation and benefits, performance management, and organizational development to foster a high-performing and engaged workforce. This executive position is crucial for attracting, retaining, and developing the skilled engineering talent required for Syska Hennessy Group's complex MEP, ICT, and commissioning projects. By championing a positive and inclusive workplace culture, Patricia Dreste ensures that the company's most valuable asset—its people—are supported and empowered. Dreste's strategic direction in human resources directly contributes to operational excellence and the firm's long-term success.
    Patricia Dreste

    Anjanette Bobrow - General Counsel

    Anjanette Bobrow, the General Counsel at Syska Hennessy Group, provides comprehensive legal counsel and strategic guidance on all matters affecting the company. Bobrow oversees all legal affairs, including contract negotiation and review, litigation management, regulatory compliance, and corporate governance, ensuring adherence to laws and industry standards for government and commercial engagements. This role is vital for mitigating legal risks and protecting the company's interests across its diverse project portfolio. By advising leadership on legal implications of business decisions, Anjanette Bobrow safeguards Syska Hennessy Group's operations and reputation. Bobrow's expertise ensures that all business activities are conducted with the highest degree of legal integrity and compliance.

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

    Who leads Syska Hennessy Group?
    Syska Hennessy Group is led by Cyrus Izzo (President & Chief Executive Officer), along with executives such as Diane Oleski (Executive Administrator To President and 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 Cyrus Izzo (President & Chief Executive Officer), Diane Oleski (Executive Administrator To President and 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 President & Chief Executive Officer, Executive Administrator To President and Chief Executive Officer, Chief Financial Officer & Associate Partner, Chief Marketing Officer, Chief Human Resources Officer.