Big Rivers Electric Executive and Leadership Team

July, 2026

Leadership Overview

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

Dedicated to powering communities, Big Rivers Electric provides essential electrical generation and management services, driving progress through reliable energy solutions.

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 oversees all major business units, ensuring alignment with the company's mission of providing reliable electrical generation and management services. This leadership role involves driving growth initiatives and maintaining the company's strong market position within the energy sector. Bailey's focus remains on optimizing resource allocation and fostering innovation across all departments. The President & Chief Executive Officer ensures that Big Rivers Electric consistently meets regulatory requirements and stakeholder expectations. Bailey's strategic guidance is critical for navigating the evolving energy landscape and securing long-term sustainability for the organization. The executive's commitment extends to enhancing operational efficiency and expanding service capabilities to meet growing regional demands.

    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 is responsible for the comprehensive management of all corporate functions, ensuring the delivery of high-quality electrical generation and management services. This executive guides the organization's expansion efforts and reinforces its commitment to operational excellence. Gulley's leadership ensures that Big Rivers Electric maintains its competitive edge in the energy market. The President & Chief Executive Officer's oversight extends to fostering a culture of continuous improvement and innovation. Donald Gulley's strategic acumen is vital for the company's sustained success and its ability to adapt to industry advancements. The executive's role involves cultivating strong relationships with stakeholders and driving forward the company's core objectives.
    Donald Gulley

    Talina Mathews - Chief Financial Officer

    Talina Mathews, the Chief Financial Officer at Big Rivers Electric, directs all financial operations and strategic fiscal planning. Mathews oversees budgeting, financial reporting, and investment strategies, ensuring the company's financial health and stability. This role is critical for managing capital allocation and optimizing profitability within the energy sector. The Chief Financial Officer works closely with other executives to align financial objectives with the company's overall business goals. Mathews's expertise supports informed decision-making across all departments, driving efficiency and resource management. Talina Mathews's financial stewardship is essential for navigating market fluctuations and securing funding for future projects. The executive's responsibilities include maintaining compliance with financial regulations and enhancing shareholder value through sound fiscal practices.

    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 is responsible for managing financial records, ensuring accurate reporting, and developing rate structures that support the company's financial objectives and regulatory compliance. This dual role requires a deep understanding of both accounting principles and the complexities of energy market pricing. The Vice President, Accounting & Chief Financial Officer, Rates collaborates with the finance team to analyze financial performance and identify opportunities for cost optimization. Billie Richert's expertise is vital for maintaining financial integrity and ensuring that pricing models are competitive and sustainable. The executive's oversight ensures that all financial activities adhere to industry standards and contribute to the company's overall economic health.

    Nathan Berry - Chief Operating Officer

    Nathan Berry, the Chief Operating Officer at Big Rivers Electric, manages the day-to-day operational activities and oversees the execution of service delivery. Berry is responsible for optimizing the efficiency of electrical generation processes and ensuring the reliability of management services provided to clients. This leadership position involves directing operational teams, implementing best practices, and driving performance improvements across all facilities. The Chief Operating Officer plays a key part in maintaining high standards of safety and regulatory compliance. Nathan Berry's operational insights are crucial for enhancing productivity and managing resources effectively. The executive's focus is on streamlining workflows and ensuring seamless integration of new technologies to support the company's growth objectives. Berry ensures that operational strategies directly contribute to the company's mission of providing dependable energy solutions.

    Michael Mizell - Chief Administrative Officer

    Michael Mizell, the Chief Administrative Officer at Big Rivers Electric, directs the company's administrative functions and supports overall organizational efficiency. Mizell oversees human resources, legal affairs, and corporate governance, ensuring smooth operations across all support departments. This executive role is pivotal in maintaining a productive work environment and fostering strong corporate culture. The Chief Administrative Officer works to implement policies and procedures that enhance operational effectiveness and employee engagement. Michael Mizell's strategic oversight contributes to the company's ability to attract and retain top talent. The executive's responsibilities include managing risk, ensuring compliance with labor laws, and supporting the strategic initiatives of other C-suite leaders. Mizell's focus is on building a robust administrative framework that underpins Big Rivers Electric's service delivery and long-term growth.
    Michael Mizell

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    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.