Milwaukee County Transit System Executive and Leadership Team

October, 2026

Leadership Overview

Milwaukee County Transit System has 6 executives leading key functions including executive strategy, financial management, human resources, information security, administrative oversight, and transit operations.

Committed to reliable public mobility, Milwaukee County Transit System delivers essential transportation services across the region while maintaining a focus on community connectivity and operational excellence.

Leadership Roles at Milwaukee County Transit System

  • Vice President and Deputy Chief Executive Officer - Ruben Salas
  • Chief Financial Officer - Alexander Corona
  • Chief Human Resources Officer - Benjamin Stark
  • Chief Information Officer & Chief Information Security Officer - William Bethia
  • Chief Administrative Officer - Sandra Kellner
  • Chief Operations Officer - Brian Wojcik
  • Ruben Salas - Vice President and Deputy Chief Executive Officer

    Ruben Salas, the Vice President and Deputy Chief Executive Officer at Milwaukee County Transit System, directs high-level organizational strategy and supports the execution of regional transit goals. Salas manages the alignment of departmental objectives with the broader mission of providing efficient bus services throughout the county. By coordinating with the executive leadership team, the Vice President and Deputy Chief Executive Officer ensures that long-term planning initiatives remain consistent with public transportation demands. Ruben Salas monitors performance metrics to optimize service delivery and resource allocation across the fleet. This leadership role involves navigating complex regulatory environments while fostering partnerships with local stakeholders to enhance transit accessibility. Through rigorous oversight of internal processes, the Vice President and Deputy Chief Executive Officer drives continuous improvement in service reliability. Ultimately, Salas strengthens the operational framework necessary for sustaining a robust transit network that serves the diverse needs of the Milwaukee community.

    Alexander Corona - Chief Financial Officer

    Alexander Corona, the Chief Financial Officer at Milwaukee County Transit System, manages the fiscal health and budgetary planning for the entire transit agency. Corona oversees capital investment strategies, ensuring that funding for bus fleet maintenance and route expansion remains sustainable. By analyzing revenue streams and operational costs, the Chief Financial Officer maintains strict financial discipline across all departments. Alexander Corona directs the preparation of comprehensive financial reports for the board, providing transparency regarding the allocation of public resources. This role involves mitigating financial risks while identifying opportunities for cost-effective service improvements. Through precise management of grant funding and operational budgets, the Chief Financial Officer supports the long-term viability of regional transit infrastructure. Ultimately, Corona secures the necessary capital to maintain high-quality transportation services, ensuring that the agency meets its fiscal obligations while delivering consistent value to the residents of Milwaukee County.

    Benjamin Stark - Chief Human Resources Officer

    Benjamin Stark, the Chief Human Resources Officer at Milwaukee County Transit System, architects the talent acquisition and workforce development strategies essential for maintaining a reliable bus fleet. Stark manages labor relations, employee benefits, and organizational culture initiatives to ensure high retention rates among transit staff. By implementing comprehensive training programs, the Chief Human Resources Officer prepares personnel for the demands of daily route operations and customer service excellence. Benjamin Stark oversees compliance with labor laws and safety regulations, fostering a secure environment for all employees. This leadership role involves collaborating with department heads to align staffing levels with service requirements across the county. Through the development of performance management systems, the Chief Human Resources Officer drives professional growth and operational accountability. Ultimately, Stark builds a resilient workforce capable of delivering consistent, high-quality transportation services to the public, ensuring that the agency remains a top employer in the region.
    Benjamin Stark

    William Bethia - Chief Information Officer & Chief Information Security Officer

    William Bethia, the Chief Information Officer & Chief Information Security Officer at Milwaukee County Transit System, directs the digital infrastructure and cybersecurity protocols protecting the agency's critical transit data. Bethia manages the integration of advanced scheduling software and fleet tracking systems that optimize route efficiency. By implementing robust security measures, the Chief Information Officer & Chief Information Security Officer safeguards sensitive information against evolving digital threats. William Bethia oversees the modernization of technology platforms to improve passenger communication and real-time service updates. This role involves coordinating with technical teams to ensure system uptime and data integrity across all transit operations. Through the strategic deployment of hardware and software solutions, the Chief Information Officer & Chief Information Security Officer enhances the overall technological capabilities of the agency. Ultimately, Bethia maintains a secure and efficient digital environment that supports the seamless delivery of public transportation services throughout the county.

    Sandra Kellner - Chief Administrative Officer

    Sandra Kellner, the Chief Administrative Officer at Milwaukee County Transit System, oversees the internal business processes and administrative functions that support daily transit operations. Kellner manages facility maintenance, procurement policies, and corporate governance to ensure organizational efficiency. By streamlining administrative workflows, the Chief Administrative Officer enables other departments to focus on service delivery and fleet management. Sandra Kellner directs the implementation of policies that govern agency-wide operations, ensuring compliance with local and state regulations. This leadership role involves coordinating cross-functional projects that improve the overall effectiveness of the transit system. Through the management of essential support services, the Chief Administrative Officer drives operational stability and resource optimization. Ultimately, Kellner maintains the administrative foundation required for the agency to function smoothly, ensuring that all logistical and organizational needs are met to support the broader mission of providing reliable transportation to the Milwaukee community.

    Brian Wojcik - Chief Operations Officer

    Brian Wojcik, the Chief Operations Officer at Milwaukee County Transit System, directs the daily execution of bus routes and fleet maintenance activities across the entire service area. Wojcik manages the logistics of transit scheduling, ensuring that buses operate on time and meet the needs of the commuting public. By overseeing the maintenance department, the Chief Operations Officer ensures that the fleet remains safe and reliable for daily use. Brian Wojcik monitors real-time operational data to address service disruptions and optimize route performance. This leadership role involves coordinating with dispatch teams and field supervisors to maintain high standards of service quality. Through the implementation of operational best practices, the Chief Operations Officer drives efficiency and passenger satisfaction. Ultimately, Wojcik manages the complex day-to-day activities of the transit system, ensuring that the agency provides consistent and dependable transportation services to all residents of Milwaukee County.
    Brian Wojcik

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    Frequently Asked Questions Regarding Milwaukee County Transit System Top Executives and Leadership Team

    Who leads Milwaukee County Transit System?
    Milwaukee County Transit System is led by Ruben Salas (Vice President and Deputy Chief Executive Officer), along with executives such as Alexander Corona (Chief Financial Officer) and Benjamin Stark (Chief Human Resources Officer).
    Who is part of Milwaukee County Transit System’s executive team?
    The executive team of Milwaukee County Transit System includes leaders such as Ruben Salas (Vice President and Deputy Chief Executive Officer), Alexander Corona (Chief Financial Officer), Benjamin Stark (Chief Human Resources Officer) and other senior executives.
    How many executives does Milwaukee County Transit System have?
    Milwaukee County Transit System has 6 executives leading key business areas.
    What roles are included in Milwaukee County Transit System’s leadership team?
    The leadership team of Milwaukee County Transit System includes roles such as Vice President and Deputy Chief Executive Officer, Chief Financial Officer, Chief Human Resources Officer, Chief Information Officer & Chief Information Security Officer, Chief Administrative Officer.