Group O Executive and Leadership Team

July, 2026

Leadership Overview

Group O has 4 executives leading key functions including strategy, technology, supply chain, and operations.

Driven by a commitment to innovation, Group O provides end-to-end solutions across marketing, supply chain, packaging, and mobile device lifecycle management, impacting markets nationwide.

Leadership Roles at Group O

  • Chief Executive Officer - Gregg Ontiveros
  • President - Michael Holzwarth
  • Chief Technology Officer - Bill Liebbe
  • Supply Chain Solutions Chief of Staff - Jeremiah Green
  • Gregg Ontiveros - Chief Executive Officer

    Gregg Ontiveros, the Chief Executive Officer at Group O, directs the company's overarching strategy and market positioning. Ontiveros guides the executive team in delivering integrated solutions across marketing, supply chain, packaging, and mobile device lifecycle management. This leadership ensures alignment with Group O's mission to provide comprehensive end-to-end services. Overseeing major operational hubs in Minnesota and Texas, Ontiveros drives the company's expansion and commitment to client success. The Chief Executive Officer's vision shapes the company's approach to innovation and operational excellence, maintaining Group O's competitive edge in the industry. Gregg Ontiveros's strategic direction solidifies the company's presence and impact across its key service areas.

    Michael Holzwarth - President

    Michael Holzwarth, the President at Group O, directs the company's comprehensive operational execution and client engagement strategies. Holzwarth oversees the delivery of end-to-end solutions, including marketing, supply chain, packaging, and mobile device lifecycle management, ensuring high standards of service across all business units. This leadership role involves fostering strong relationships with clients and driving business development initiatives to expand Group O's market reach. The President ensures operational synergy between headquarters in Milan, Illinois, and major facilities in Minnesota and Texas. Michael Holzwarth's focus on operational excellence and strategic growth solidifies Group O's reputation as a premier solutions provider in the industry.

    Bill Liebbe - Chief Technology Officer

    Bill Liebbe, the Chief Technology Officer at Group O, architects the technological infrastructure supporting the company's diverse service offerings. Liebbe oversees the development and implementation of innovative technology solutions that enhance Group O's marketing, supply chain, packaging, and mobile device lifecycle management capabilities. This role involves ensuring that all technological advancements directly contribute to the efficiency and effectiveness of the company's end-to-end solutions. The Chief Technology Officer drives digital transformation initiatives, optimizing data flow and system integration across operations in Illinois, Minnesota, and Texas. By focusing on cutting-edge technology, Bill Liebbe ensures Group O remains at the forefront of industry advancements, providing clients with superior service delivery and robust operational support.

    Jeremiah Green - Supply Chain Solutions Chief of Staff

    Jeremiah Green, the Supply Chain Solutions Chief of Staff at Group O, optimizes the operational efficiency of the company's supply chain services. Green collaborates closely with executive leadership to refine strategies for packaging, logistics, and mobile device lifecycle management, ensuring seamless integration across all Group O solutions. This position focuses on enhancing project execution and driving process improvements within the supply chain division, supporting major operations in Minnesota and Texas. The Supply Chain Solutions Chief of Staff plays a critical part in translating strategic objectives into actionable operational plans. Jeremiah Green's efforts directly contribute to Group O's ability to deliver reliable and effective end-to-end supply chain solutions to its clientele.

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    Frequently Asked Questions Regarding Group O Top Executives and Leadership Team

    Who leads Group O?
    Group O is led by Gregg Ontiveros (Chief Executive Officer), along with executives such as Michael Holzwarth (President) and Bill Liebbe (Chief Technology Officer).
    Who is part of Group O’s executive team?
    The executive team of Group O includes leaders such as Gregg Ontiveros (Chief Executive Officer), Michael Holzwarth (President), Bill Liebbe (Chief Technology Officer) and other senior executives.
    How many executives does Group O have?
    Group O has 4 executives leading key business areas.
    What roles are included in Group O’s leadership team?
    The leadership team of Group O includes roles such as Chief Executive Officer, President, Chief Technology Officer, Supply Chain Solutions Chief of Staff.