Tulsa Community College Executive and Leadership Team

May, 2026

Leadership Overview

Tulsa Community College has 6 executives leading key functions including finance, human resources, technology, and institutional leadership.

Driven by a commitment to accessible education, Tulsa Community College provides a comprehensive learning environment, fostering student success and community engagement through diverse academic programs and support services.

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, directs all financial operations and administrative functions. Overseeing the college's fiscal health, McMullen manages budgeting, financial planning, and resource allocation to support TCC's educational mission. This leadership role involves ensuring financial stability and compliance with all relevant regulations. By optimizing financial strategies, Mark McMullen directly impacts the college's ability to invest in academic programs and student services. The Vice President, Business Affairs & Chief Financial Officer also guides procurement processes and manages institutional investments, securing long-term financial sustainability for Tulsa Community College. This executive ensures efficient use of all college assets.

    Dean VanTrease - President

    Dean VanTrease, the President at Tulsa Community College, provides executive leadership and strategic direction for the entire institution. VanTrease guides TCC's mission to deliver accessible, high-quality education, fostering academic excellence and community impact. This pivotal role involves overseeing all college operations, setting institutional priorities, and representing TCC to external stakeholders. By championing innovation and student success, Dean VanTrease ensures the college remains at the forefront of higher education. The President also cultivates partnerships and collaborations that expand opportunities for students and the wider community. VanTrease's vision shapes the future of Tulsa Community College and its contribution to Oklahoma.

    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. King leads the Student Government Association, fostering student engagement and promoting a vibrant campus community. This role involves collaborating with college administration to address student needs and enhance the overall student experience. By amplifying student voices, Jonica King ensures that student perspectives inform institutional decision-making. The President of SGA also oversees student initiatives and programs designed to support student success and well-being. King's leadership empowers students and strengthens the connection between students and Tulsa Community College.

    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, leads human capital management and workforce development initiatives. Sirkel oversees talent acquisition, employee relations, and the implementation of programs designed to enhance organizational effectiveness and professional growth. This critical role ensures a supportive and productive work environment for all TCC employees. By fostering a culture of continuous learning, Mary Sirkel drives initiatives that align with the college's strategic objectives. The Acting Chief Human Resources Officer and Director, Employee and Organizational Development also manages compensation and benefits, ensuring competitive and equitable practices across the institution. Sirkel's leadership strengthens the college's most valuable asset: its people.

    Matthew Olsen - Chief Human Resources Officer

    Matthew Olsen, the Chief Human Resources Officer at Tulsa Community College, directs comprehensive human resources strategies and operations. Olsen is responsible for talent management, employee engagement, and fostering a positive organizational culture that supports TCC's mission. This executive role involves developing and implementing policies that ensure fair and effective HR practices across the institution. By championing employee development, Matthew Olsen enhances the skills and capabilities of the TCC workforce. The Chief Human Resources Officer also oversees benefits administration and compliance with labor laws, safeguarding the interests of both employees and the college. Olsen's strategic approach to HR strengthens the foundation of Tulsa Community College.
    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, spearheads the institution's technological infrastructure and administrative operations. Siftar directs IT strategy, ensuring robust and secure systems that support academic and administrative functions. This leadership position involves managing technology resources, overseeing digital transformation initiatives, and optimizing operational efficiency. By implementing innovative technological solutions, Michael Siftar enhances the learning experience and operational effectiveness for TCC. The Assistant VP, Administrative Operations & Chief Technology Officer also manages facilities and operational support services, ensuring a seamless environment for students and staff. Siftar's expertise drives technological advancement and operational excellence.
    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.