Big Rivers Electric Executive and Leadership Team

May, 2026

Leadership Overview

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

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 philosophy centered on efficiency and forward-thinking infrastructure.

Leadership Roles at Big Rivers Electric

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

    Donald Gulley, the President & Chief Executive Officer at Big Rivers Electric, directs the company's overall strategic vision and operational execution. Gulley's leadership guides the organization's expansion in electrical generation and management services, ensuring alignment with market demands and technological advancements. Overseeing all major corporate initiatives, Donald Gulley drives the company's commitment to providing reliable energy solutions. This executive role involves fostering innovation within the energy sector and maintaining strong stakeholder relationships. The President & Chief Executive Officer's focus extends to enhancing operational efficiency and securing the company's long-term growth trajectory within the competitive energy landscape. Gulley's strategic direction is paramount to Big Rivers Electric's continued success and market presence.
    Donald Gulley

    Mark Bailey - President & Chief Executive Officer

    Mark Bailey, the President & Chief Executive Officer at Big Rivers Electric, spearheads the company's overarching strategic objectives and operational frameworks. Bailey's executive oversight ensures the effective delivery of electrical generation and management services, aligning corporate goals with industry best practices. Directing all facets of the business, Mark Bailey champions initiatives that enhance service reliability and operational excellence. This critical leadership position involves navigating complex market dynamics and driving sustainable growth. The President & Chief Executive Officer's responsibilities include cultivating a culture of continuous improvement and ensuring robust financial performance. Bailey's strategic leadership is fundamental to Big Rivers Electric's mission of powering communities and industries.

    Talina Mathews - Chief Financial Officer

    Talina Mathews, the Chief Financial Officer at Big Rivers Electric, manages the company's financial health and strategic fiscal planning. Mathews oversees all financial operations, including budgeting, forecasting, and capital allocation, ensuring the company's resources support its electrical generation and management services. Directing financial strategy, Talina Mathews plays a key role in optimizing profitability and managing financial risk. This executive function involves close collaboration with other C-suite leaders to align financial objectives with operational goals. The Chief Financial Officer's purview extends to investor relations and ensuring compliance with all financial regulations. Mathews's expertise is vital for Big Rivers Electric's sustained financial stability and growth.

    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 company's accounting functions and rate-setting strategies. Richert ensures the accuracy of financial reporting and manages the complex regulatory aspects of energy pricing, directly impacting the company's revenue streams. Overseeing financial integrity, Billie Richert guides the accounting team in maintaining robust internal controls and compliance. This specialized executive role involves analyzing market trends and developing rate structures that support both company profitability and customer value. The Vice President, Accounting & Chief Financial Officer, Rates's expertise is crucial for navigating the regulated energy market. Richert's financial acumen is integral to Big Rivers Electric's sustainable business model.

    Nathan Berry - Chief Operating Officer

    Nathan Berry, the Chief Operating Officer at Big Rivers Electric, directs the day-to-day operational activities critical to the company's electrical generation and management services. Berry oversees the efficiency and effectiveness of all operational departments, ensuring seamless service delivery and adherence to safety standards. Driving operational excellence, Nathan Berry implements strategies to enhance productivity and manage resources effectively across the organization. This leadership role involves optimizing complex processes within the energy sector and fostering a culture of high performance. The Chief Operating Officer's responsibilities include managing infrastructure projects and ensuring the reliability of energy supply. Berry's operational leadership is essential for Big Rivers Electric's consistent service provision.

    Michael Mizell - Chief Administrative Officer

    Michael Mizell, the Chief Administrative Officer at Big Rivers Electric, oversees the essential administrative functions that support the company's operational and strategic goals. Mizell manages key support departments, ensuring efficient internal processes and a productive work environment conducive to delivering electrical generation and management services. Directing administrative operations, Michael Mizell focuses on optimizing resource allocation and enhancing organizational effectiveness. This executive position involves strategic planning for human resources, facilities management, and corporate governance. The Chief Administrative Officer's role is critical in maintaining the smooth functioning of the entire organization. Mizell's leadership ensures that administrative support aligns with Big Rivers Electric's broader mission and operational requirements.
    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 Donald Gulley (President & Chief Executive Officer), along with executives such as Mark Bailey (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 Donald Gulley (President & Chief Executive Officer), Mark Bailey (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.