Tulsa Community College Executive and Leadership Team

June, 2026

Leadership Overview

Tulsa Community College has 6 executives leading key functions including strategy, finance, human resources, technology, and student affairs.

Driven by a commitment to accessible education, Tulsa Community College provides a comprehensive range of programs, fostering student success and community development through its inclusive, two-year model.

Leadership Roles at Tulsa Community College

  • Vice President, Business Affairs & Chief Financial Officer - Mark McMullen
  • President - Dean VanTrease
  • President of SGA - Jonica King
  • Acting Chief Human Resources Officer and Director, Employee and Organizational Development - Mary Sirkel
  • Chief Human Resources Officer - Matthew Olsen
  • Assistant VP, Administrative Operations & Chief Technology Officer - Michael Siftar
  • Mark McMullen - Vice President, Business Affairs & Chief Financial Officer

    Mark McMullen, the Vice President, Business Affairs & Chief Financial Officer at Tulsa Community College, manages the institution's financial health and operational infrastructure. Directing all fiscal operations, Mark McMullen oversees budgeting, financial planning, and resource allocation to support TCC's strategic objectives. This critical role involves ensuring financial stability and compliance, managing investments, and optimizing revenue streams to sustain and expand college programs. By providing robust financial oversight, the Vice President, Business Affairs & Chief Financial Officer enables effective decision-making and supports the college's mission of providing accessible education. The scope of this executive's responsibilities extends to managing administrative services, procurement, and facilities, ensuring efficient operations across the organization.

    Dean VanTrease - President

    Dean VanTrease, the President at Tulsa Community College, provides visionary leadership and strategic direction for the entire institution. Guiding TCC's mission and operational framework, Dean VanTrease ensures the college remains at the forefront of accessible and quality education. This executive role involves fostering strong relationships with stakeholders, including students, faculty, staff, and the wider community, to advance the college's objectives. By championing academic excellence and student success, the President drives institutional growth and impact. Responsibilities encompass overseeing all academic and administrative functions, setting institutional priorities, and ensuring the long-term sustainability and relevance of Tulsa Community College in serving its diverse student population.

    Jonica King - President of SGA

    Jonica King, the President of SGA at Tulsa Community College, represents the student body and advocates for student interests within the college governance structure. Leading the Student Government Association, Jonica King facilitates student engagement and ensures student voices are heard in institutional decision-making processes. This role is vital for fostering a dynamic campus community and promoting student leadership development. By collaborating with college administration, the President of SGA works to enhance the student experience and address campus needs. Responsibilities include organizing student initiatives, managing SGA operations, and serving as a liaison between students and college leadership, thereby contributing to a vibrant and responsive educational environment.

    Mary Sirkel - Acting Chief Human Resources Officer and Director, Employee and Organizational Development

    Mary Sirkel, the Acting Chief Human Resources Officer and Director, Employee and Organizational Development at Tulsa Community College, directs the strategic implementation of human capital initiatives. Overseeing employee relations and talent management, Mary Sirkel ensures the development and execution of programs that foster a supportive and productive organizational culture. This leadership role involves architecting frameworks for professional growth and organizational effectiveness, directly impacting the college's ability to attract and retain top talent. By focusing on employee engagement and development, the Acting Chief Human Resources Officer and Director, Employee and Organizational Development strengthens the college's operational capacity and supports its overarching educational mission. The scope of this position includes managing HR operations and driving initiatives that enhance the employee experience across the institution.

    Matthew Olsen - Chief Human Resources Officer

    Matthew Olsen, the Chief Human Resources Officer at Tulsa Community College, leads the comprehensive human resources strategy for the institution. Overseeing all aspects of workforce management, Matthew Olsen drives initiatives related to talent acquisition, employee development, compensation, and benefits. This executive role is pivotal in cultivating a positive and effective work environment, ensuring TCC attracts, develops, and retains a skilled and dedicated faculty and staff. By aligning HR practices with the college's mission, the Chief Human Resources Officer supports institutional growth and operational excellence. The responsibilities include championing diversity and inclusion, managing employee relations, and ensuring compliance with all relevant labor laws and regulations, thereby strengthening the college's human capital.
    Matthew Olsen

    Michael Siftar - Assistant VP, Administrative Operations & Chief Technology Officer

    Michael Siftar, the Assistant VP, Administrative Operations & Chief Technology Officer at Tulsa Community College, directs the integration and management of technology across the institution. Overseeing IT infrastructure, digital learning platforms, and administrative systems, Michael Siftar ensures robust technological support for students, faculty, and staff. This leadership position is crucial for driving innovation in educational delivery and operational efficiency through advanced technology solutions. By managing the college's technology roadmap, the Assistant VP, Administrative Operations & Chief Technology Officer enhances the learning experience and supports the college's strategic goals. Responsibilities include cybersecurity, data management, and the implementation of new technological tools to advance TCC's mission.
    Michael Siftar

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    Frequently Asked Questions Regarding Tulsa Community College Top Executives and Leadership Team

    Who leads Tulsa Community College?
    Tulsa Community College is led by Mark McMullen (Vice President, Business Affairs & Chief Financial Officer), along with executives such as Dean VanTrease (President) and Jonica King (President of SGA).
    Who is part of Tulsa Community College’s executive team?
    The executive team of Tulsa Community College includes leaders such as Mark McMullen (Vice President, Business Affairs & Chief Financial Officer), Dean VanTrease (President), Jonica King (President of SGA) and other senior executives.
    How many executives does Tulsa Community College have?
    Tulsa Community College has 6 executives leading key business areas.
    What roles are included in Tulsa Community College’s leadership team?
    The leadership team of Tulsa Community College includes roles such as Vice President, Business Affairs & Chief Financial Officer, President, President of SGA, Acting Chief Human Resources Officer and Director, Employee and Organizational Development, Chief Human Resources Officer.