Big Rivers Electric Executive and Leadership Team

July, 2026

Leadership Overview

Big Rivers Electric has 6 executives leading key functions including strategy, operations, finance, administration, and accounting.

Driven by a commitment to reliable energy, Big Rivers Electric provides essential electrical generation and management services, powering communities and industries across its operational footprint with a focus on efficiency and sustainable practices.

Leadership Roles at Big Rivers Electric

  • President & Chief Executive Officer - Mark Bailey
  • President & Chief Executive Officer - Donald Gulley
  • Chief Financial Officer - Talina Mathews
  • Vice President, Accounting & Chief Financial Officer, Rates - Billie Richert
  • Chief Operating Officer - Nathan Berry
  • Chief Administrative Officer - Michael Mizell
  • Mark Bailey - President & Chief Executive Officer

    Mark Bailey, the President & Chief Executive Officer at Big Rivers Electric, directs the company's overall strategic vision and operational execution. Bailey guides corporate development, ensuring alignment with market demands for electrical generation and management services. This leadership role involves fostering innovation in energy solutions and maintaining robust stakeholder relationships. Bailey's oversight extends to financial performance and long-term growth initiatives, positioning Big Rivers Electric for sustained success in the energy sector. The executive's focus remains on enhancing service delivery and operational efficiency across all company functions. Mark Bailey drives the organization's mission to provide reliable power.

    Donald Gulley - President & Chief Executive Officer

    Donald Gulley, the President & Chief Executive Officer at Big Rivers Electric, spearheads the company's strategic direction and executive leadership. Gulley manages all facets of corporate operations, ensuring the delivery of comprehensive electrical generation and management services. This executive's responsibilities include driving market expansion and optimizing resource allocation to meet evolving energy needs. Gulley cultivates a culture of operational excellence and fiscal responsibility, crucial for the company's sustained impact. The executive's leadership ensures Big Rivers Electric maintains its commitment to providing dependable energy solutions. Donald Gulley's tenure focuses on strengthening the company's market position.
    Donald Gulley

    Talina Mathews - Chief Financial Officer

    Talina Mathews, the Chief Financial Officer at Big Rivers Electric, directs all financial planning, management, and reporting activities. Mathews oversees budgeting, forecasting, and capital allocation to support the company's strategic growth and operational needs in electrical generation and management. This executive ensures financial health and compliance with regulatory requirements. Mathews works closely with other department heads to provide financial insights that inform business decisions and drive profitability. The Chief Financial Officer's expertise is critical for managing the company's financial resources effectively. Talina Mathews safeguards the company's financial stability and future investments.

    Billie Richert - Vice President, Accounting & Chief Financial Officer, Rates

    Billie Richert, the Vice President, Accounting & Chief Financial Officer, Rates at Big Rivers Electric, leads the accounting functions and oversees rate-setting strategies. Richert manages financial record-keeping, ensures accurate reporting, and develops pricing models for electrical services. This role involves close coordination with regulatory bodies and internal teams to establish fair and competitive rates. Richert's responsibilities include financial analysis to support operational decisions and long-term financial planning. The Vice President, Accounting & Chief Financial Officer, Rates ensures the financial integrity of the company's billing and accounting systems. Billie Richert's contributions are vital for financial transparency and operational efficiency.

    Nathan Berry - Chief Operating Officer

    Nathan Berry, the Chief Operating Officer at Big Rivers Electric, manages the day-to-day operational activities and service delivery. Berry oversees the generation facilities and management systems, ensuring consistent and reliable power output. This role involves optimizing operational workflows, implementing efficiency improvements, and maintaining high standards for safety and environmental compliance. Berry collaborates with other C-suite leaders to align operational strategies with the company's broader business objectives. The Chief Operating Officer's focus is on enhancing the effectiveness of energy generation processes and distribution networks. Nathan Berry drives operational excellence across the organization.

    Michael Mizell - Chief Administrative Officer

    Michael Mizell, the Chief Administrative Officer at Big Rivers Electric, oversees essential administrative functions that support the company's operational and strategic goals. Mizell manages human resources, legal affairs, and corporate governance, ensuring smooth internal operations and compliance with all applicable laws and regulations. This executive plays a key part in developing and implementing policies that foster a productive work environment and uphold the company's values. Mizell collaborates with other leaders to streamline processes and enhance organizational efficiency. The Chief Administrative Officer's role is fundamental to the company's overall effectiveness. Michael Mizell ensures robust support systems are in place.
    Michael Mizell

    Explore Leadership Teams in Electricity, Oil & Gas

    Frequently Asked Questions Regarding Big Rivers Electric Top Executives and Leadership Team

    Who leads Big Rivers Electric?
    Big Rivers Electric is led by Mark Bailey (President & Chief Executive Officer), along with executives such as Donald Gulley (President & Chief Executive Officer) and Talina Mathews (Chief Financial Officer).
    Who is part of Big Rivers Electric’s executive team?
    The executive team of Big Rivers Electric includes leaders such as Mark Bailey (President & Chief Executive Officer), Donald Gulley (President & Chief Executive Officer), Talina Mathews (Chief Financial Officer) and other senior executives.
    How many executives does Big Rivers Electric have?
    Big Rivers Electric has 6 executives leading key business areas.
    What roles are included in Big Rivers Electric’s leadership team?
    The leadership team of Big Rivers Electric includes roles such as President & Chief Executive Officer, President & Chief Executive Officer, Chief Financial Officer, Vice President, Accounting & Chief Financial Officer, Rates, Chief Operating Officer.