PISTON GROUP Executive and Leadership Team

July, 2026

Leadership Overview

PISTON GROUP has 6 executives leading key functions including strategy, operations, finance, administration, and engineering.

Driven by innovation, PISTON GROUP is dedicated to providing comprehensive automotive engineering solutions, encompassing design, development, advanced assembly, manufacturing, and supply chain management to drive industry advancement.

Leadership Roles at PISTON GROUP

  • Chief Executive Officer - Mamadou Diallo
  • President & Chief Executive Officer - Bruce Smith
  • Founder, Chairman & Chief Executive Officer - Vincent Johnson
  • Chief Financial Officer - Louis Stoney
  • Chief Operating Officer - Bob Holloway
  • Chief Administrative Officer (CAO) - Vicki Richardson
  • Mamadou Diallo - Chief Executive Officer

    Mamadou Diallo, the Chief Executive Officer at PISTON GROUP, directs the overarching corporate strategy and operational execution. This leadership role involves guiding the company's expansion across its diverse service offerings, including process engineering, design, development, and advanced manufacturing. Overseeing global initiatives, Mamadou Diallo ensures PISTON GROUP maintains its competitive edge in the automotive sector. The Chief Executive Officer's focus remains on fostering innovation and driving sustainable growth through strategic partnerships and market penetration. This executive's mandate includes optimizing resource allocation and ensuring all departments align with the company's long-term vision for technological leadership and operational excellence in automotive engineering. Mamadou Diallo's strategic direction is critical for navigating complex market dynamics and solidifying PISTON GROUP's position as a premier automotive engineering partner.

    Bruce Smith - President & Chief Executive Officer

    Bruce Smith, the President & Chief Executive Officer at PISTON GROUP, spearheads the company's strategic vision and operational leadership. This executive's responsibilities encompass driving business development, enhancing market presence, and ensuring the seamless integration of PISTON GROUP's comprehensive automotive engineering services. Bruce Smith oversees the execution of advanced assembly, manufacturing, and supply chain management strategies, directly impacting the company's ability to deliver cutting-edge solutions. The President & Chief Executive Officer's role involves fostering a culture of continuous improvement and innovation across all divisions. By championing new technologies and methodologies, Bruce Smith ensures PISTON GROUP remains at the forefront of the automotive industry. This leadership position requires a deep understanding of global market trends and a commitment to operational efficiency, positioning Bruce Smith as a key driver of the company's sustained success and expansion.

    Vincent Johnson - Founder, Chairman & Chief Executive Officer

    Vincent Johnson, the Founder, Chairman & Chief Executive Officer at PISTON GROUP, establishes the foundational vision and strategic direction for the organization. This executive's leadership guides PISTON GROUP's comprehensive suite of automotive engineering services, from initial design and development to advanced manufacturing and supply chain management. Vincent Johnson oversees the company's commitment to innovation and excellence, ensuring adherence to the highest industry standards. The Founder, Chairman & Chief Executive Officer's role involves fostering strong relationships with stakeholders and driving the company's mission forward. By championing a culture of integrity and forward-thinking, Vincent Johnson ensures PISTON GROUP consistently delivers exceptional value to its clients. This pivotal position requires a profound understanding of the automotive landscape, enabling Vincent Johnson to navigate complex challenges and capitalize on emerging opportunities for growth and market leadership.
    Vincent Johnson

    Louis Stoney - Chief Financial Officer

    Louis Stoney, the Chief Financial Officer at PISTON GROUP, directs all financial operations and strategic fiscal planning. This executive's responsibilities include managing capital allocation, optimizing financial performance, and ensuring robust financial controls across the organization's diverse engineering and manufacturing divisions. Louis Stoney oversees budgeting, forecasting, and financial reporting, providing critical insights to support executive decision-making. The Chief Financial Officer's focus extends to identifying investment opportunities and managing financial risks associated with PISTON GROUP's global operations. By maintaining fiscal discipline and driving financial efficiency, Louis Stoney ensures the company's long-term economic stability and growth. This leadership role is essential for sustaining PISTON GROUP's capacity to invest in advanced technologies and expand its service offerings in the competitive automotive sector.

    Bob Holloway - Chief Operating Officer

    Bob Holloway, the Chief Operating Officer at PISTON GROUP, oversees the day-to-day operational execution of the company's engineering and manufacturing processes. This executive's mandate includes optimizing efficiency across advanced assembly, prototype testing, and supply chain management functions. Bob Holloway directs the implementation of operational strategies designed to enhance productivity and ensure the highest quality standards in all PISTON GROUP services. The Chief Operating Officer's role involves managing cross-functional teams to achieve seamless project delivery and client satisfaction. By focusing on process improvement and resource optimization, Bob Holloway ensures PISTON GROUP maintains its competitive advantage. This leadership position is critical for translating strategic objectives into tangible operational results, driving PISTON GROUP's capacity for innovation and scalable production.

    Vicki Richardson - Chief Administrative Officer (CAO)

    Vicki Richardson, the Chief Administrative Officer (CAO) at PISTON GROUP, manages the critical administrative functions that support the company's extensive engineering and manufacturing operations. This executive's purview includes overseeing human resources, legal affairs, and corporate governance, ensuring PISTON GROUP operates with integrity and efficiency. Vicki Richardson directs the development and implementation of policies that foster a productive and compliant work environment across all departments. The Chief Administrative Officer (CAO)'s role is vital for aligning administrative strategies with the company's overall business objectives, facilitating smooth operations and supporting employee development. By ensuring robust administrative infrastructure, Vicki Richardson enables PISTON GROUP to focus on its core competencies in automotive design, development, and production, contributing significantly to the company's sustained success.

    Explore Leadership Teams in Automotive Parts

    Frequently Asked Questions Regarding PISTON GROUP Top Executives and Leadership Team

    Who leads PISTON GROUP?
    PISTON GROUP is led by Mamadou Diallo (Chief Executive Officer), along with executives such as Bruce Smith (President & Chief Executive Officer) and Vincent Johnson (Founder, Chairman & Chief Executive Officer).
    Who is part of PISTON GROUP’s executive team?
    The executive team of PISTON GROUP includes leaders such as Mamadou Diallo (Chief Executive Officer), Bruce Smith (President & Chief Executive Officer), Vincent Johnson (Founder, Chairman & Chief Executive Officer) and other senior executives.
    How many executives does PISTON GROUP have?
    PISTON GROUP has 6 executives leading key business areas.
    What roles are included in PISTON GROUP’s leadership team?
    The leadership team of PISTON GROUP includes roles such as Chief Executive Officer, President & Chief Executive Officer, Founder, Chairman & Chief Executive Officer, Chief Financial Officer, Chief Operating Officer.