G4S Executive and Leadership Team

May, 2026

Leadership Overview

G4S has 8 executives leading key functions including finance, people operations, and regional leadership.

Driven by a commitment to security excellence, G4S provides comprehensive security solutions, including personnel, monitoring, response units, and secure transportation, impacting global safety and operational integrity.

Leadership Roles at G4S

  • Chief Financial Officer - Arturo Bernales
  • Armed Officer President Union - Anthony Rizzo
  • Regional President, Africa - Christo Terblanche
  • Chief People Officer - Ivan Pereira
  • Armed Security Officer & Chief People Officer - Joshua Nielson
  • Chief People Officer & Sjm Coordinator - Muhammad Mugisha
  • Chief People Officer, Uso - Angel Leon
  • Chief People Officer, Uso & Supervisor - Conner Hoag
  • Arturo Bernales - Chief Financial Officer

    Arturo Bernales, the Chief Financial Officer at G4S, directs all financial operations and strategic fiscal planning. Bernales oversees the company's financial health, managing budgets, investments, and financial reporting to ensure profitability and sustainable growth. This leadership role involves optimizing financial performance across all business units, aligning fiscal strategies with G4S's global operational objectives. By analyzing market trends and financial data, Bernales drives informed decision-making to enhance shareholder value and maintain financial stability. The Chief Financial Officer's responsibilities extend to risk management and ensuring compliance with all financial regulations. Arturo Bernales's expertise is critical in navigating the complex financial landscape of the global security industry, supporting G4S's mission to provide reliable security services worldwide.

    Anthony Rizzo - Armed Officer President Union

    Anthony Rizzo, the Armed Officer President Union at G4S, represents the interests of armed security personnel, advocating for fair labor practices and operational safety. Rizzo collaborates with G4S management to ensure that union members receive appropriate training, compensation, and working conditions, particularly for roles involving secure prisoner transportation and high-threat response. This leadership position involves negotiating collective bargaining agreements and addressing grievances to maintain positive labor relations. Anthony Rizzo's influence is critical in fostering a motivated and secure workforce, directly impacting the quality of G4S's security personnel services. The Armed Officer President Union's dedication ensures that frontline officers are supported, contributing to G4S's ability to deliver reliable and effective security solutions globally.

    Christo Terblanche - Regional President, Africa

    Christo Terblanche, the Regional President, Africa at G4S, directs all operations and strategic growth initiatives across the African continent. Terblanche oversees the delivery of comprehensive security solutions, including security personnel, monitoring equipment, and response units, tailored to the diverse needs of African markets. This leadership role involves managing regional performance, ensuring operational efficiency, and expanding G4S's market presence throughout Africa. By fostering strong client relationships and adapting services to local requirements, Christo Terblanche drives revenue growth and reinforces G4S's position as a leading security provider in the region. The Regional President, Africa's strategic vision is crucial for navigating complex market dynamics and ensuring the consistent delivery of high-quality security services across G4S's African operations.

    Ivan Pereira - Chief People Officer

    Ivan Pereira, the Chief People Officer at G4S, architects the human capital strategy, focusing on talent acquisition, development, and retention. Pereira oversees all aspects of employee relations, compensation, and benefits, ensuring a supportive and productive work environment across the organization. This role is pivotal in fostering a strong company culture that aligns with G4S's commitment to security and service excellence. By implementing innovative HR policies, the Chief People Officer drives employee engagement and organizational effectiveness. Ivan Pereira's leadership ensures that G4S attracts and retains top talent, crucial for delivering specialized security personnel and response units. The Chief People Officer's strategic initiatives contribute directly to operational efficiency and the overall success of G4S's global workforce.
    Ivan Pereira

    Joshua Nielson - Armed Security Officer & Chief People Officer

    Joshua Nielson, the Armed Security Officer & Chief People Officer at G4S, bridges operational security execution with human resources leadership. Nielson directly manages armed security personnel, ensuring adherence to stringent safety protocols and operational readiness for critical security assignments. Concurrently, as Chief People Officer, Nielson shapes the employee experience for security staff, focusing on training, welfare, and career progression within G4S. This dual role provides unique insight into the practical needs of frontline security officers and the strategic HR requirements to support them. Joshua Nielson's oversight ensures that G4S maintains a highly skilled and motivated security force, capable of delivering specialized services like secure prisoner transportation. The Armed Security Officer & Chief People Officer's contributions are vital to G4S's reputation for reliability and operational excellence in demanding environments.

    Muhammad Mugisha - Chief People Officer & Sjm Coordinator

    Muhammad Mugisha, the Chief People Officer & Sjm Coordinator at G4S, leads comprehensive people strategies and coordinates critical safety and justice management initiatives. Mugisha oversees the development and implementation of HR programs designed to enhance employee performance and well-being, particularly for personnel involved in sensitive operations. As Sjm Coordinator, Muhammad Mugisha ensures that G4S's safety and justice management practices meet the highest industry standards, supporting secure prisoner transportation and other high-risk services. This integrated approach guarantees that personnel are not only well-managed but also operate within a framework of robust safety protocols. The Chief People Officer & Sjm Coordinator's role is essential for maintaining operational integrity and fostering a culture of safety and accountability across G4S's diverse service offerings.

    Angel Leon - Chief People Officer, Uso

    Angel Leon, the Chief People Officer, Uso at G4S, spearheads human resources initiatives with a specific focus on the United States Operations (Uso) division. Leon directs talent management, employee engagement, and organizational development strategies tailored to the unique demands of the US security market. This role involves ensuring that G4S's HR practices support the effective deployment of security personnel, monitoring equipment, and response units across the United States. By fostering a strong employee culture, Angel Leon drives operational excellence and reinforces G4S's commitment to providing secure and reliable services. The Chief People Officer, Uso's leadership is instrumental in attracting and retaining skilled professionals, crucial for maintaining G4S's competitive edge in the US security sector.

    Conner Hoag - Chief People Officer, Uso & Supervisor

    Conner Hoag, the Chief People Officer, Uso & Supervisor at G4S, integrates human resources leadership with frontline operational oversight within the United States Operations (Uso). Hoag manages key HR functions, including talent acquisition and employee relations, while also supervising operational teams responsible for delivering security personnel and monitoring equipment services. This dual capacity allows for direct alignment between HR strategies and on-the-ground operational needs, ensuring G4S's US-based services are both efficient and effective. By focusing on employee development and operational best practices, Conner Hoag enhances team performance and service quality. The Chief People Officer, Uso & Supervisor's contributions are vital to maintaining G4S's high standards for security personnel and response units in the competitive US market.

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    Frequently Asked Questions Regarding G4S Top Executives and Leadership Team

    Who leads G4S?
    G4S is led by Arturo Bernales (Chief Financial Officer), along with executives such as Anthony Rizzo (Armed Officer President Union) and Christo Terblanche (Regional President, Africa).
    Who is part of G4S’s executive team?
    The executive team of G4S includes leaders such as Arturo Bernales (Chief Financial Officer), Anthony Rizzo (Armed Officer President Union), Christo Terblanche (Regional President, Africa) and other senior executives.
    How many executives does G4S have?
    G4S has 8 executives leading key business areas.
    What roles are included in G4S’s leadership team?
    The leadership team of G4S includes roles such as Chief Financial Officer, Armed Officer President Union, Regional President, Africa, Chief People Officer, Armed Security Officer & Chief People Officer.