Milestone Executive and Leadership Team

June, 2026

Leadership Overview

Milestone has 8 executives leading key functions including strategy, operations, and people.

Driven by a commitment to client success, Milestone partners with organizations to scale technology and infrastructure, fostering digital transformation and operational agility to achieve specific business outcomes.

Leadership Roles at Milestone

  • Chief Executive Officer - Miles Tonus
  • President & Chief Executive Officer - Sameer Kishore
  • Chief Financial Officer - David Laidler
  • Chief Operating Officer - Michael Riep
  • Chief of Staff - Victoria Arvizo
  • Chief Information Officer - Alden Metz
  • Chief People Officer - Arlene LaBorde
  • Team Captain - Mazen Sharif
  • Miles Tonus - Chief Executive Officer

    Miles Tonus, the Chief Executive Officer at Milestone, directs the overarching corporate strategy and vision. Tonus guides the company's expansion into new markets and service offerings, ensuring alignment with client needs for digital transformation and operational agility. This leadership role involves fostering innovation across all departments and setting the pace for technological advancement. By focusing on scalable solutions, Miles Tonus drives the firm's ability to deliver impactful business outcomes for its global clientele. The Chief Executive Officer's mandate includes cultivating strategic partnerships and enhancing the company's competitive position within the IT managed services sector. Tonus ensures that Milestone's service delivery consistently meets the highest standards of quality and efficiency, directly contributing to client success and long-term growth.

    Sameer Kishore - President & Chief Executive Officer

    Sameer Kishore, the President & Chief Executive Officer at Milestone, spearheads the company's strategic direction and operational execution. Kishore focuses on driving business outcomes through advanced technology solutions and managed services, emphasizing digital transformation and innovation. This executive oversees the integration of new technologies and service models to enhance client infrastructure and operational agility. By cultivating strong relationships with key stakeholders, Sameer Kishore ensures Milestone's continued growth and market leadership. The President & Chief Executive Officer's responsibilities include championing the company's mission to scale technology effectively for clients worldwide. Kishore's leadership ensures that Milestone remains at the forefront of the IT managed services industry, delivering measurable value and driving client success through strategic technological advancements.
    Sameer Kishore

    David Laidler - Chief Financial Officer

    David Laidler, the Chief Financial Officer at Milestone, directs all financial operations and strategic financial planning. Laidler oversees budgeting, forecasting, and financial reporting, ensuring fiscal responsibility and driving profitable growth. This executive manages capital allocation and investment strategies to support the company's expansion and technological initiatives. By maintaining robust financial controls, David Laidler ensures the company's stability and its capacity to invest in innovation and client-focused solutions. The Chief Financial Officer's role is integral to achieving specific business outcomes, including digital transformation and operational agility. Laidler's financial acumen supports Milestone's mission to scale technology effectively, providing the resources necessary for sustained success in the IT managed services market.
    David Laidler

    Michael Riep - Chief Operating Officer

    Michael Riep, the Chief Operating Officer at Milestone, oversees the company's global operations and service delivery. Riep focuses on optimizing processes to enhance operational agility and ensure the efficient scaling of technology and infrastructure for clients. This executive drives the implementation of best practices across all operational functions, directly supporting digital transformation initiatives. By ensuring seamless service delivery, Michael Riep contributes significantly to achieving specific business outcomes for Milestone's partners. The Chief Operating Officer's responsibilities include managing day-to-day activities and fostering a culture of continuous improvement. Riep's leadership ensures that Milestone consistently provides high-quality IT managed services, reinforcing the company's reputation for reliability and innovation in the technology sector.
    Michael Riep

    Victoria Arvizo - Chief of Staff

    Victoria Arvizo, the Chief of Staff at Milestone, provides critical support to executive leadership, ensuring seamless execution of strategic initiatives. Arvizo manages cross-functional projects and facilitates communication between departments, optimizing operational efficiency. This role involves streamlining processes and enhancing internal coordination to support the company's mission of scaling technology and driving business outcomes. By acting as a key liaison, Victoria Arvizo ensures that strategic priorities are translated into actionable plans across the organization. The Chief of Staff's focus includes driving operational agility and supporting digital transformation efforts. Arvizo's contributions are vital in maintaining the company's momentum and ensuring that Milestone effectively delivers innovative IT managed services to its global client base.

    Alden Metz - Chief Information Officer

    Alden Metz, the Chief Information Officer at Milestone, directs the company's internal IT strategy and infrastructure management. Metz ensures that Milestone's own technology systems are robust, secure, and scalable, supporting the firm's operational needs and client service delivery. This executive plays a key role in implementing innovative solutions that enhance productivity and drive digital transformation within the organization. By managing information resources effectively, Alden Metz contributes to the company's overall operational agility. The Chief Information Officer's focus includes safeguarding data integrity and optimizing technology investments. Metz's strategic oversight ensures that Milestone's internal technology aligns with its external mission of providing cutting-edge IT managed services to its global clientele.

    Arlene LaBorde - Chief People Officer

    Arlene LaBorde, the Chief People Officer at Milestone, leads all human resources functions and talent management strategies. LaBorde focuses on cultivating a high-performance culture that supports innovation and operational agility across the global workforce. This executive is responsible for attracting, developing, and retaining top talent, ensuring the company has the skilled professionals needed to drive digital transformation and deliver exceptional client services. By fostering employee engagement and professional growth, Arlene LaBorde directly contributes to achieving Milestone's business objectives. The Chief People Officer's role is critical in aligning people strategies with the company's mission to scale technology and provide advanced IT managed services. LaBorde ensures that Milestone's team is equipped to meet the evolving demands of the technology landscape.
    Arlene LaBorde

    Mazen Sharif - Team Captain

    Mazen Sharif, the Team Captain at Milestone, leads a dedicated team focused on delivering specialized IT solutions and support. Sharif ensures that team members are aligned with project goals and client expectations, fostering a collaborative environment. This role involves overseeing the execution of specific tasks and projects, contributing to the overall operational efficiency of Milestone's service delivery. By guiding team efforts, Mazen Sharif plays a part in achieving the company's objectives related to scaling technology and driving client success. The Team Captain's focus is on empowering the team to meet challenges and deliver high-quality outcomes. Sharif's leadership contributes to the consistent provision of effective IT managed services, supporting Milestone's mission to drive innovation and operational agility for its partners.

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    Frequently Asked Questions Regarding Milestone Top Executives and Leadership Team

    Who leads Milestone?
    Milestone is led by Miles Tonus (Chief Executive Officer), along with executives such as Sameer Kishore (President & Chief Executive Officer) and David Laidler (Chief Financial Officer).
    Who is part of Milestone’s executive team?
    The executive team of Milestone includes leaders such as Miles Tonus (Chief Executive Officer), Sameer Kishore (President & Chief Executive Officer), David Laidler (Chief Financial Officer) and other senior executives.
    How many executives does Milestone have?
    Milestone has 8 executives leading key business areas.
    What roles are included in Milestone’s leadership team?
    The leadership team of Milestone includes roles such as Chief Executive Officer, President & Chief Executive Officer, Chief Financial Officer, Chief Operating Officer, Chief of Staff.