Dynamic Security Executive and Leadership Team

June, 2026

Leadership Overview

Dynamic Security has 4 executives leading key functions including strategy, finance, operations, and human resources.

Dedicated to providing comprehensive security solutions, Dynamic Security upholds a philosophy of responsive service and client-focused innovation, driving market leadership across North America.

Leadership Roles at Dynamic Security

  • President & Chief Executive Officer - John Riddle
  • Chief Financial Officer - Gail Arrington
  • President - Scott Riddle
  • Chief People Officer & Team Leader - Andrew Herrington
  • John Riddle - President & Chief Executive Officer

    John Riddle, the President & Chief Executive Officer at Dynamic Security, directs the company's overarching strategy and operational execution. Overseeing all business units, Riddle ensures alignment with the firm's mission to deliver tailored security services for commercial, industrial, governmental, and academic clients throughout North America. This leadership role involves fostering the company's long-standing reputation for responsiveness and dedication, critical components of Dynamic Security's market position since its establishment in 1940. By championing continuous communication and advanced training programs, Riddle drives the adoption of cutting-edge security technologies and methodologies. The focus remains on maintaining high employee and client retention rates, a testament to the effective leadership provided. John Riddle's strategic vision guides the company's expansion and adaptation to evolving client needs, solidifying its status as a premier security provider.
    John Riddle

    Gail Arrington - Chief Financial Officer

    Gail Arrington, the Chief Financial Officer at Dynamic Security, manages all financial operations and strategic fiscal planning. Arrington oversees budgeting, forecasting, and financial reporting, ensuring the company's fiscal health and supporting its growth initiatives across North America. This critical function involves optimizing resource allocation to support the delivery of customized security solutions and staffing services to a diverse client base. Arrington's expertise is vital in maintaining the financial stability that underpins Dynamic Security's responsive and dedicated approach. By implementing robust financial controls and exploring investment opportunities, the Chief Financial Officer directly contributes to the company's ability to leverage technology effectively and sustain high retention rates for both employees and clients. Gail Arrington's leadership ensures that financial strategies align with the company's commitment to continuous communication and training, reinforcing its market leadership.
    Gail Arrington

    Scott Riddle - President

    Scott Riddle, the President at Dynamic Security, drives operational excellence and service delivery across all client sectors. Riddle directs the implementation of customized security solutions and staffing services, ensuring adherence to the company's high standards for commercial, industrial, governmental, and academic clients throughout North America. This leadership position focuses on enhancing the responsive and dedicated approach for which Dynamic Security is known. Scott Riddle oversees the integration of advanced technologies and the continuous improvement of training programs, directly impacting employee performance and client satisfaction. The President's role is central to maintaining the elite services division, recruiting highly trained professionals from law enforcement and military backgrounds. Scott Riddle's commitment to fostering strong client relationships and ensuring operational efficiency solidifies Dynamic Security's reputation for top-notch security provision.

    Andrew Herrington - Chief People Officer & Team Leader

    Andrew Herrington, the Chief People Officer & Team Leader at Dynamic Security, spearheads human capital management and talent development. Herrington oversees all aspects of employee relations, recruitment, retention, and training programs, crucial for maintaining the company's high standards across North America. This role is fundamental to fostering the dedicated workforce that delivers customized security solutions to commercial, industrial, governmental, and academic clients. Andrew Herrington champions the company's commitment to continuous communication and professional development, ensuring that all team members are equipped to meet evolving client needs. The Chief People Officer & Team Leader plays a pivotal part in the elite services division, focusing on attracting and retaining professionals with law enforcement and military backgrounds. Andrew Herrington's strategic focus on people operations directly supports Dynamic Security's mission of providing responsive and reliable security services.

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    Frequently Asked Questions Regarding Dynamic Security Top Executives and Leadership Team

    Who leads Dynamic Security?
    Dynamic Security is led by John Riddle (President & Chief Executive Officer), along with executives such as Gail Arrington (Chief Financial Officer) and Scott Riddle (President).
    Who is part of Dynamic Security’s executive team?
    The executive team of Dynamic Security includes leaders such as John Riddle (President & Chief Executive Officer), Gail Arrington (Chief Financial Officer), Scott Riddle (President) and other senior executives.
    How many executives does Dynamic Security have?
    Dynamic Security has 4 executives leading key business areas.
    What roles are included in Dynamic Security’s leadership team?
    The leadership team of Dynamic Security includes roles such as President & Chief Executive Officer, Chief Financial Officer, President, Chief People Officer & Team Leader.