TETRA Executive and Leadership Team

May, 2026

Leadership Overview

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

Driven by innovation, TETRA operates as a diversified oil and gas services company, focusing on delivering essential solutions across the energy sector with a commitment to operational excellence and strategic financial management.

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 long-term growth objectives. This leadership role involves overseeing all major business units and fostering a culture of innovation and efficiency. By focusing on core competencies, Jimi Gelashvili drives the company's commitment to providing essential services to the energy industry. The Chief Executive Officer's mandate includes maximizing shareholder value and maintaining TETRA's competitive edge in a dynamic global market. Gelashvili's strategic direction ensures the company navigates industry challenges and capitalizes on emerging opportunities, solidifying TETRA's position as a key player in energy services.

    Stewart Brightman - President & Chief Executive Officer

    Stewart Brightman, the President & Chief Executive Officer at TETRA, spearheads the company's comprehensive strategic planning and executive leadership. Brightman's purview encompasses the entirety of TETRA's operations as a diversified oil and gas services provider, driving initiatives that enhance service delivery and operational efficiency. This executive position demands a deep understanding of the energy sector's complexities and a forward-thinking approach to business development. Stewart Brightman is responsible for cultivating key stakeholder relationships and ensuring the company's financial health and market responsiveness. The President & Chief Executive Officer's leadership ensures that TETRA consistently meets the evolving needs of its clients while upholding rigorous safety and environmental standards. Through strategic oversight, Brightman reinforces TETRA's commitment to sustainable growth and industry leadership.

    Matthew Sanderson - Executive VP & Chief Financial Officer

    Matthew Sanderson, the Executive VP & Chief Financial Officer at TETRA, directs the company's financial operations and strategic fiscal planning. Sanderson manages all aspects of financial reporting, capital allocation, and investment strategies, ensuring the fiscal health and stability of TETRA's diversified oil and gas services. This executive role is pivotal in guiding the company's financial performance, managing risk, and identifying opportunities for profitable growth within the energy sector. Matthew Sanderson collaborates closely with other C-suite leaders to align financial objectives with overarching business strategies. The Executive VP & Chief Financial Officer's oversight extends to treasury functions, budgeting, and forecasting, ensuring compliance with all financial regulations. Sanderson's expertise is crucial for driving shareholder value and maintaining investor confidence in TETRA's financial trajectory.
    Matthew Sanderson

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

    Robert Williams, the Chief Financial Officer, Fractional & Strategic Finance Advisor at TETRA, provides specialized financial guidance and strategic advisory services. Williams focuses on optimizing TETRA's financial architecture and advising on complex financial matters pertinent to the oil and gas services industry. This role involves offering fractional CFO expertise, enhancing financial planning, and developing strategic financial models to support the company's growth objectives. Robert Williams contributes to critical decision-making processes by providing deep financial insights and analysis. The Chief Financial Officer, Fractional & Strategic Finance Advisor's mandate includes identifying areas for financial improvement and ensuring robust financial controls are in place. Williams's strategic input supports TETRA's operational efficiency and its ability to navigate the financial complexities of the energy market.

    Jacob Phillips - Chief Information Officer

    Jacob Phillips, the Chief Information Officer at TETRA, architects and executes the company's comprehensive information technology strategy. Phillips oversees the development and implementation of robust digital infrastructure, ensuring seamless technological operations across all facets of TETRA's oil and gas services. This critical role involves managing data security, optimizing IT resources, and driving digital transformation initiatives to enhance operational efficiency and client service delivery. Jacob Phillips champions the adoption of cutting-edge technologies that support the company's diversified business model and its presence in the energy sector. The Chief Information Officer's responsibilities extend to ensuring system reliability, supporting data analytics for strategic decision-making, and safeguarding sensitive company information. Phillips's leadership ensures TETRA leverages technology to maintain a competitive advantage and drive innovation.

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    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.