SI Group Executive and Leadership Team

June, 2026

Leadership Overview

SI Group has 6 executives leading key functions including strategy, finance, information technology, marketing, and operations.

Driven by innovation, SI Group is dedicated to advancing chemical manufacturing through specialized solutions, impacting global markets with performance additives and essential chemical intermediates.

Leadership Roles at SI Group

  • Chief Executive Officer - Luciano Stefanelli
  • President & Chief Executive Officer - David Bradley
  • Chief Financial Officer - Helio Ono
  • Senior Vice President & Chief Financial Officer - Rustom Jilla
  • Chief Information Officer - Mukund Devanathan
  • Chief Marketing Officer & Global Director, Business - Tri Nguyen
  • Luciano Stefanelli - Chief Executive Officer

    Luciano Stefanelli, the Chief Executive Officer at SI Group, directs the company's overall strategic vision and operational execution. This leadership role involves guiding SI Group's global operations, ensuring alignment with market demands for performance additives, process solutions, and pharmaceutical ingredients. Stefanelli's focus centers on driving sustainable growth and enhancing the company's competitive position within the chemical manufacturing sector. Overseeing all major business units, the Chief Executive Officer ensures that strategic initiatives translate into tangible business outcomes. Luciano Stefanelli's leadership is critical for navigating complex market dynamics and fostering innovation across the organization. The executive's mandate includes optimizing resource allocation and championing a culture of operational excellence throughout the enterprise. This position requires a deep understanding of chemical processes and global supply chains to maintain SI Group's market leadership.

    David Bradley - President & Chief Executive Officer

    David Bradley, the President & Chief Executive Officer at SI Group, spearheads the company's strategic direction and global business development. This executive role encompasses the oversight of all corporate functions, ensuring the effective delivery of performance additives, process solutions, and chemical intermediates to a worldwide customer base. Bradley's leadership drives SI Group's expansion into new markets and strengthens existing customer relationships. The President & Chief Executive Officer is responsible for fostering innovation and maintaining the company's commitment to quality and sustainability. David Bradley's strategic insights are vital for navigating the competitive landscape of chemical manufacturing. This position involves close collaboration with the board and executive team to achieve long-term financial and operational objectives. The executive's influence extends to shaping the company's culture and operational ethos.

    Helio Ono - Chief Financial Officer

    Helio Ono, the Chief Financial Officer at SI Group, manages the company's financial strategy and fiscal operations. This critical role involves overseeing all aspects of financial planning, accounting, treasury, and investor relations, ensuring the fiscal health and stability of SI Group. Ono's responsibilities include driving financial performance, managing capital allocation, and mitigating financial risks associated with global operations in performance additives and chemical intermediates manufacturing. The Chief Financial Officer provides essential financial insights to support strategic decision-making across the organization. Helio Ono's expertise is crucial for maintaining investor confidence and optimizing the company's financial structure. This executive ensures compliance with all financial regulations and drives efficiency in financial processes. Ono's oversight supports SI Group's long-term growth objectives and market competitiveness.

    Rustom Jilla - Senior Vice President & Chief Financial Officer

    Rustom Jilla, the Senior Vice President & Chief Financial Officer at SI Group, provides critical financial oversight and strategic guidance for the company's global operations. This executive role involves managing financial planning and analysis, accounting operations, and treasury functions, ensuring robust financial controls and reporting for SI Group's chemical manufacturing business. Jilla's responsibilities include supporting strategic investments, optimizing capital structure, and driving financial efficiency across all departments. The Senior Vice President & Chief Financial Officer collaborates closely with the Chief Executive Officer and other leaders to achieve financial targets and enhance shareholder value. Rustom Jilla's expertise is vital for navigating complex financial landscapes and ensuring fiscal discipline. This position requires a comprehensive understanding of global financial markets and regulatory requirements. Jilla's leadership contributes to SI Group's sustained financial performance and growth.

    Mukund Devanathan - Chief Information Officer

    Mukund Devanathan, the Chief Information Officer at SI Group, directs the company's technology strategy and digital transformation initiatives. This executive role encompasses the management of all IT infrastructure, cybersecurity, data management, and enterprise systems, ensuring robust technological support for SI Group's global operations in chemical manufacturing. Devanathan's focus is on leveraging technology to enhance operational efficiency, drive innovation in process solutions, and improve customer engagement. The Chief Information Officer plays a pivotal role in safeguarding company data and ensuring the seamless integration of digital tools across all business functions. Mukund Devanathan's leadership is essential for maintaining a secure and advanced technological environment. This position involves strategic planning for future technology investments and overseeing the implementation of cutting-edge IT solutions. Devanathan's efforts support SI Group's competitive edge in the market.
    Mukund Devanathan

    Tri Nguyen - Chief Marketing Officer & Global Director, Business

    Tri Nguyen, the Chief Marketing Officer & Global Director, Business at SI Group, leads the company's global marketing strategies and business development efforts. This executive role involves overseeing market analysis, brand management, product positioning, and sales enablement for SI Group's diverse portfolio, including performance additives and pharmaceutical ingredients. Nguyen's responsibilities extend to identifying new market opportunities and driving revenue growth across all regions. The Chief Marketing Officer & Global Director, Business ensures that marketing initiatives align with corporate objectives and effectively communicate the value proposition of SI Group's specialized chemical solutions. Tri Nguyen's strategic vision is key to enhancing market presence and customer acquisition. This position requires a deep understanding of global chemical markets and customer needs. Nguyen's leadership fosters collaboration between marketing, sales, and product development teams.

    Frequently Asked Questions Regarding SI Group Top Executives and Leadership Team

    Who leads SI Group?
    SI Group is led by Luciano Stefanelli (Chief Executive Officer), along with executives such as David Bradley (President & Chief Executive Officer) and Helio Ono (Chief Financial Officer).
    Who is part of SI Group’s executive team?
    The executive team of SI Group includes leaders such as Luciano Stefanelli (Chief Executive Officer), David Bradley (President & Chief Executive Officer), Helio Ono (Chief Financial Officer) and other senior executives.
    How many executives does SI Group have?
    SI Group has 6 executives leading key business areas.
    What roles are included in SI Group’s leadership team?
    The leadership team of SI Group includes roles such as Chief Executive Officer, President & Chief Executive Officer, Chief Financial Officer, Senior Vice President & Chief Financial Officer, Chief Information Officer.