Pioneer Human Services Executive and Leadership Team

October, 2026

Leadership Overview

Pioneer Human Services has 4 executives leading key functions including strategy, organizational operations, service delivery, and financial management.

Committed to social justice and economic empowerment, Pioneer Human Services transforms lives by providing essential housing, treatment, and career training for justice-involved individuals across Washington state.

Leadership Roles at Pioneer Human Services

  • Chairman & Chief Executive Officer - Hideki Ono
  • Chief Financial Officer - Sandra Possin
  • Chief Operating Officer - Mark Behrends
  • Chief of Staff - Hilary Young
  • Hideki Ono - Chairman & Chief Executive Officer

    Hideki Ono, the Chairman & Chief Executive Officer at Pioneer Human Services, directs the overarching strategic vision for this nonprofit organization. By prioritizing the expansion of reentry support and social entrepreneurship, the Chairman & Chief Executive Officer ensures alignment between mission-driven goals and operational reality. Hideki Ono oversees the integration of aerospace manufacturing and food service business units to create sustainable career pathways for individuals impacted by the criminal legal system. This leadership role involves constant engagement with the Board to maintain focus on dismantling mass incarceration through effective community-based solutions. By fostering partnerships across Washington state, the Chairman & Chief Executive Officer drives long-term organizational growth and stability. Through rigorous oversight of all service delivery models, the executive guarantees that every program remains responsive to the needs of justice-involved populations while maintaining high standards of social impact and fiscal responsibility.
    Hideki Ono

    Sandra Possin - Chief Financial Officer

    Sandra Possin, the Chief Financial Officer at Pioneer Human Services, manages the financial health and fiscal strategy of the organization. By overseeing budgeting, financial reporting, and resource allocation, the Chief Financial Officer ensures that funds support the core mission of providing housing, treatment, and career training. Sandra Possin directs the financial planning for both the nonprofit services and the social enterprise business units, balancing revenue generation with social impact goals. This leadership role involves maintaining transparency with the Board and ensuring compliance with all regulatory requirements across Washington state. By analyzing economic trends and operational costs, the Chief Financial Officer provides the data necessary for informed strategic decision-making. Through prudent management of assets and investments, the executive secures the long-term viability of the organization. This position remains essential for maintaining the financial stability required to expand services and reach more individuals impacted by the criminal legal system.

    Mark Behrends - Chief Operating Officer

    Mark Behrends, the Chief Operating Officer at Pioneer Human Services, oversees the daily execution of service delivery programs, including detox, stabilization, and job readiness training. By managing the logistics of housing and reentry support, the Chief Operating Officer ensures that operational standards meet the needs of justice-involved individuals throughout Washington state. Mark Behrends directs the implementation of scalable processes within the organization's social enterprises, specifically focusing on the efficiency of aerospace manufacturing and food service operations. This leadership role requires constant coordination with department heads to maintain high-quality service delivery while managing complex supply chains. By monitoring performance metrics and operational output, the Chief Operating Officer drives continuous improvement across all service lines. Through rigorous attention to detail and resource allocation, the executive supports the organization's ability to provide consistent, high-impact career pathways for those seeking to reintegrate into the workforce and society.
    Mark Behrends

    Hilary Young - Chief of Staff

    Hilary Young, the Chief of Staff at Pioneer Human Services, manages internal communications and coordinates cross-departmental initiatives to streamline organizational efficiency. By facilitating collaboration between the executive leadership team and various operational divisions, the Chief of Staff ensures that strategic priorities receive consistent attention. Hilary Young monitors the execution of key projects related to housing and career training, providing the necessary administrative support to keep programs on schedule. This role involves synthesizing complex data from detox and stabilization services to inform executive decision-making processes. By optimizing internal workflows, the Chief of Staff enhances the overall capacity of the organization to serve justice-involved individuals effectively. Through proactive management of organizational resources and stakeholder relationships, the executive maintains operational cohesion across all regional sites. This position remains vital for translating high-level directives into actionable tasks that support the broader mission of empowering individuals to rebuild lives.

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    Frequently Asked Questions Regarding Pioneer Human Services Top Executives and Leadership Team

    Who leads Pioneer Human Services?
    Pioneer Human Services is led by Hideki Ono (Chairman & Chief Executive Officer), along with executives such as Sandra Possin (Chief Financial Officer) and Mark Behrends (Chief Operating Officer).
    Who is part of Pioneer Human Services’s executive team?
    The executive team of Pioneer Human Services includes leaders such as Hideki Ono (Chairman & Chief Executive Officer), Sandra Possin (Chief Financial Officer), Mark Behrends (Chief Operating Officer) and other senior executives.
    How many executives does Pioneer Human Services have?
    Pioneer Human Services has 4 executives leading key business areas.
    What roles are included in Pioneer Human Services’s leadership team?
    The leadership team of Pioneer Human Services includes roles such as Chairman & Chief Executive Officer, Chief Financial Officer, Chief Operating Officer, Chief of Staff.