SI Group Executive and Leadership Team

May, 2026

Leadership Overview

SI Group has 5 executives leading key functions including strategy, finance, information technology, marketing, and operations.

Driven by innovation, SI Group is a chemical manufacturing company specializing in performance additives, process solutions, pharmaceutical ingredients, and chemical intermediates, impacting global markets through advanced chemical solutions.

Leadership Roles at SI Group

  • Chief Executive Officer - Bella Le
  • President & Chief Executive Officer - David Bradley
  • Chief Financial Officer - Helio Ono
  • Chief Information Officer - Mukund Devanathan
  • Chief Marketing Officer & Global Director, Business - Tri Nguyen
  • Bella Le - Chief Executive Officer

    Bella Le, 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 expansion in performance additives, process solutions, and chemical intermediates. Le focuses on driving innovation across all business units, ensuring alignment with market demands and long-term growth objectives. The Chief Executive Officer oversees critical functions that support the company's established presence in chemical manufacturing, emphasizing sustainable practices and technological advancement. Bella Le's strategic direction ensures the company maintains its competitive edge in the global chemical industry, fostering a culture of excellence and accountability throughout the organization.

    David Bradley - President & Chief Executive Officer

    David Bradley, the President & Chief Executive Officer at SI Group, spearheads the company's comprehensive strategic planning and global operations. This executive guides SI Group's mission to deliver specialized chemical solutions, including performance additives and pharmaceutical ingredients. Bradley's leadership ensures operational efficiency and market responsiveness, driving the company's established legacy in chemical manufacturing. The President & Chief Executive Officer oversees the integration of new technologies and sustainable practices across all divisions. David Bradley's tenure is marked by a commitment to advancing the company's position in the chemical intermediates sector, fostering robust relationships with stakeholders and ensuring sustained financial performance.

    Helio Ono - Chief Financial Officer

    Helio Ono, the Chief Financial Officer at SI Group, manages the company's financial strategy and fiscal operations. This role involves overseeing all aspects of financial planning, reporting, and investment, crucial for a chemical manufacturing entity specializing in performance additives and process solutions. Ono ensures robust financial controls and drives initiatives that support SI Group's growth in pharmaceutical ingredients and chemical intermediates. The Chief Financial Officer collaborates closely with other C-suite leaders to optimize resource allocation and capital management. Helio Ono's expertise is vital in navigating market complexities and securing the financial stability necessary for sustained innovation and operational excellence across SI Group's global footprint.

    Mukund Devanathan - Chief Information Officer

    Mukund Devanathan, the Chief Information Officer at SI Group, directs the company's information technology strategy and infrastructure. This leadership position is critical for a chemical manufacturing firm focused on performance additives, process solutions, and chemical intermediates, ensuring seamless digital operations. Devanathan oversees the implementation of advanced IT systems that enhance efficiency and data security across all business functions. The Chief Information Officer plays a key role in leveraging technology to support SI Group's innovation in pharmaceutical ingredients and its overall market presence. Mukund Devanathan's strategic vision ensures that technology initiatives align with business objectives, driving digital transformation and operational resilience for SI Group.
    Mukund Devanathan

    Tri Nguyen - Chief Marketing Officer & Global Director, Business

    Tri Nguyen, the Chief Marketing Officer & Global Director, Business at SI Group, leads global marketing initiatives and business development strategies. This executive is responsible for enhancing SI Group's brand presence and driving market penetration for its specialized chemical products, including performance additives and process solutions. Nguyen oversees the development and execution of marketing campaigns that highlight the company's expertise in pharmaceutical ingredients and chemical intermediates. The Chief Marketing Officer & Global Director, Business collaborates with sales and R&D teams to identify new market opportunities and customer needs. Tri Nguyen's leadership ensures that SI Group's innovative solutions reach target markets effectively, fostering sustained growth and competitive advantage.

    Frequently Asked Questions Regarding SI Group Top Executives and Leadership Team

    Who leads SI Group?
    SI Group is led by Bella Le (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 Bella Le (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 5 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, Chief Information Officer, Chief Marketing Officer & Global Director, Business.