TETRA Executive and Leadership Team

June, 2026

Leadership Overview

TETRA has 5 executives leading key functions including strategy, operations, information technology, and finance.

Driven by innovation, TETRA is dedicated to providing essential oil and gas services, focusing on operational excellence and strategic financial management to deliver value across the energy sector.

Leadership Roles at TETRA

  • Chief Executive Officer - Jimi Gelashvili
  • President & Chief Executive Officer - Stewart Brightman
  • Executive VP & Chief Financial Officer - Matthew Sanderson
  • Chief Financial Officer, Fractional & Strategic Finance Advisor - Robert Williams
  • Chief Information Officer - Jacob Phillips
  • Jimi Gelashvili - Chief Executive Officer

    Jimi Gelashvili, the Chief Executive Officer at TETRA, directs the company's overall strategic vision and operational execution. Gelashvili guides the organization's expansion within the diversified oil and gas services sector, ensuring alignment with market demands and technological advancements. This leadership involves overseeing all major business units and fostering a culture of innovation and efficiency. The Chief Executive Officer's responsibilities extend to managing stakeholder relations and driving long-term growth initiatives. By focusing on core competencies, Jimi Gelashvili ensures TETRA maintains a competitive edge in the energy services landscape. The executive's strategic decisions impact global operations and financial performance, solidifying the company's market position.

    Stewart Brightman - President & Chief Executive Officer

    Stewart Brightman, the President & Chief Executive Officer at TETRA, spearheads the company's strategic direction and operational leadership. Brightman drives the expansion of TETRA's diversified oil and gas services, focusing on enhancing service delivery and market penetration. This executive role encompasses the oversight of all corporate functions, ensuring seamless integration of operations and strategic planning. The President & Chief Executive Officer's mandate includes cultivating key partnerships and championing initiatives that bolster the company's financial health and operational resilience. Through astute leadership, Stewart Brightman ensures TETRA consistently meets the evolving needs of the energy sector. The executive's influence is critical in navigating complex market dynamics and securing sustained growth.

    Matthew Sanderson - Executive VP & Chief Financial Officer

    Matthew Sanderson, the Executive VP & Chief Financial Officer at TETRA, directs the company's financial strategy and fiscal operations. Sanderson oversees all aspects of financial planning, accounting, and capital management, ensuring robust financial health for the diversified oil and gas services business. This executive role is pivotal in managing corporate finance, investor relations, and driving profitability. The Executive VP & Chief Financial Officer's responsibilities include optimizing financial performance, mitigating risks, and supporting strategic growth initiatives through sound financial stewardship. By meticulously managing financial resources, Matthew Sanderson ensures TETRA maintains a strong market position and achieves its long-term economic objectives. The executive's expertise is fundamental to the company's sustained success and operational integrity.
    Matthew Sanderson

    Robert Williams - Chief Financial Officer, Fractional & Strategic Finance Advisor

    Robert Williams, the Chief Financial Officer, Fractional & Strategic Finance Advisor at TETRA, provides critical financial guidance and strategic advisory services. Williams focuses on optimizing financial structures and advising on strategic financial planning for the company's oil and gas services operations. This role involves offering expert insights into fiscal management, capital allocation, and financial risk assessment. The Chief Financial Officer, Fractional & Strategic Finance Advisor's contributions are essential for enhancing the company's financial agility and long-term strategic positioning. By leveraging extensive financial expertise, Robert Williams supports TETRA in navigating complex economic landscapes and achieving its growth targets. The executive's advisory capacity strengthens the company's financial decision-making processes.

    Jacob Phillips - Chief Information Officer

    Jacob Phillips, the Chief Information Officer at TETRA, architects the company's technology strategy and digital transformation initiatives. Phillips oversees the development and implementation of robust IT infrastructure, ensuring data security and operational efficiency across all business segments. This role is crucial for leveraging technology to enhance service delivery and support the company's diversified oil and gas operations. The Chief Information Officer's responsibilities include managing cybersecurity protocols, optimizing enterprise systems, and driving innovation through digital solutions. By focusing on cutting-edge technology, Jacob Phillips ensures TETRA remains agile and competitive in the rapidly evolving energy services market. The executive's leadership in information technology directly supports the company's strategic objectives and operational excellence.

    Explore Leadership Teams in Energy, Utilities & Waste

    Frequently Asked Questions Regarding TETRA Top Executives and Leadership Team

    Who leads TETRA?
    TETRA is led by Jimi Gelashvili (Chief Executive Officer), along with executives such as Stewart Brightman (President & Chief Executive Officer) and Matthew Sanderson (Executive VP & Chief Financial Officer).
    Who is part of TETRA’s executive team?
    The executive team of TETRA includes leaders such as Jimi Gelashvili (Chief Executive Officer), Stewart Brightman (President & Chief Executive Officer), Matthew Sanderson (Executive VP & Chief Financial Officer) and other senior executives.
    How many executives does TETRA have?
    TETRA has 5 executives leading key business areas.
    What roles are included in TETRA’s leadership team?
    The leadership team of TETRA includes roles such as Chief Executive Officer, President & Chief Executive Officer, Executive VP & Chief Financial Officer, Chief Financial Officer, Fractional & Strategic Finance Advisor, Chief Information Officer.