San Antonio Water System Executive and Leadership Team

September, 2026

Leadership Overview

San Antonio Water System has 4 executives leading key functions including financial strategy, operational oversight, and infrastructure innovation.

Committed to sustainable resource management, San Antonio Water System delivers essential water and irrigation services while maintaining long-term utility stability for the entire region.

Leadership Roles at San Antonio Water System

  • Chief Financial Officer - Marilize Hogendoorn
  • Senior Vice President & Chief Financial Officer - Cecilia Velasquez
  • Executive Vice President & Chief Operating Officer - Andrea Beymer
  • Senior VP, Operations Support Innovation & Chief of Staff - Jaime Castillo
  • Marilize Hogendoorn - Chief Financial Officer

    Marilize Hogendoorn, the Chief Financial Officer at San Antonio Water System, directs all fiscal planning and capital allocation strategies. Overseeing the utility's budgetary health, the Chief Financial Officer ensures alignment with public service mandates and long-term infrastructure investment goals. This leadership role involves managing complex rate structures and optimizing revenue streams to support regional water security. By implementing rigorous financial controls, Marilize Hogendoorn directly impacts the operational capacity of the organization. The Chief Financial Officer maintains transparency with municipal stakeholders while securing the capital necessary for large-scale water projects. Through careful oversight of debt management and financial reporting, Hogendoorn guarantees the economic viability of the utility. This position requires constant coordination with the Board to balance affordability with the high costs of maintaining extensive irrigation networks across the Texas landscape, ultimately ensuring the financial resilience of the entire public utility system.

    Cecilia Velasquez - Senior Vice President & Chief Financial Officer

    Cecilia Velasquez, the Senior Vice President & Chief Financial Officer at San Antonio Water System, manages the enterprise-wide financial risk and treasury operations. Focusing on the long-term funding of water treatment facilities, the Senior Vice President & Chief Financial Officer architects strategies to mitigate market volatility. This leadership role involves overseeing the procurement of municipal bonds and managing the utility's credit profile to ensure low-cost financing for critical infrastructure. By analyzing regional economic trends, Cecilia Velasquez provides the data-driven insights required for sustainable growth. The Senior Vice President & Chief Financial Officer collaborates with executive leadership to prioritize capital expenditures that enhance service delivery. Through the management of internal audits and financial compliance, Velasquez protects the integrity of public funds. This position demands a deep understanding of utility economics to maintain the balance between operational efficiency and the delivery of reliable water services to the community.

    Andrea Beymer - Executive Vice President & Chief Operating Officer

    Andrea Beymer, the Executive Vice President & Chief Operating Officer at San Antonio Water System, oversees the daily delivery of water and irrigation services across the entire service territory. Managing the maintenance of complex distribution networks, the Executive Vice President & Chief Operating Officer ensures that all facilities meet strict safety and quality standards. This leadership role involves directing field operations and emergency response teams to maintain service continuity during environmental challenges. By optimizing the performance of water treatment plants, Andrea Beymer guarantees the reliable supply of resources to the community. The Executive Vice President & Chief Operating Officer coordinates with engineering departments to execute large-scale infrastructure upgrades. Through the rigorous management of operational assets, Beymer drives efficiency and reduces system downtime. This position requires a comprehensive understanding of utility logistics to ensure that the organization consistently meets the high demand for water services throughout the region.
    Andrea Beymer

    Jaime Castillo - Senior VP, Operations Support Innovation & Chief of Staff

    Jaime Castillo, the Senior VP, Operations Support Innovation & Chief of Staff at San Antonio Water System, drives the integration of new technologies into daily utility operations. Overseeing the modernization of internal processes, the Senior VP, Operations Support Innovation & Chief of Staff ensures that digital transformation efforts align with the broader mission of water conservation. This leadership role involves coordinating cross-departmental initiatives to streamline communication and improve service response times. By fostering a culture of innovation, Jaime Castillo enables the organization to adapt to changing environmental demands. The Senior VP, Operations Support Innovation & Chief of Staff manages the strategic agenda for the executive office, facilitating decision-making processes that impact regional water distribution. Through the implementation of advanced data analytics, Castillo optimizes operational workflows. This position requires constant engagement with technical teams to ensure that infrastructure support systems remain robust, efficient, and capable of meeting the needs of a growing population.

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    Frequently Asked Questions Regarding San Antonio Water System Top Executives and Leadership Team

    Who leads San Antonio Water System?
    San Antonio Water System is led by Marilize Hogendoorn (Chief Financial Officer), along with executives such as Cecilia Velasquez (Senior Vice President & Chief Financial Officer) and Andrea Beymer (Executive Vice President & Chief Operating Officer).
    Who is part of San Antonio Water System’s executive team?
    The executive team of San Antonio Water System includes leaders such as Marilize Hogendoorn (Chief Financial Officer), Cecilia Velasquez (Senior Vice President & Chief Financial Officer), Andrea Beymer (Executive Vice President & Chief Operating Officer) and other senior executives.
    How many executives does San Antonio Water System have?
    San Antonio Water System has 4 executives leading key business areas.
    What roles are included in San Antonio Water System’s leadership team?
    The leadership team of San Antonio Water System includes roles such as Chief Financial Officer, Senior Vice President & Chief Financial Officer, Executive Vice President & Chief Operating Officer, Senior VP, Operations Support Innovation & Chief of Staff.