Pioneer Human Services Executive and Leadership Team

August, 2026

Leadership Overview

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

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 the organization. By prioritizing the expansion of social entrepreneurship, Ono aligns the nonprofit mission with sustainable business growth in aerospace manufacturing and food services. This leadership role involves constant engagement with the Board to ensure the organization effectively dismantles barriers for justice-involved individuals. Overseeing the long-term trajectory of the nonprofit, the Chairman & Chief Executive Officer secures resources necessary for detox, stabilization, and reentry support programs. Hideki Ono maintains a focus on regional impact, ensuring that all initiatives across Washington state meet the highest standards of service delivery. Through rigorous oversight of organizational culture and mission alignment, the executive drives the collective effort to empower individuals to rebuild lives, ultimately fostering a more inclusive and productive society through targeted career pathways.
    Hideki Ono

    Sandra Possin - Chief Financial Officer

    Sandra Possin, the Chief Financial Officer at Pioneer Human Services, oversees the fiscal health and long-term financial sustainability of the organization. By managing complex funding streams, Possin ensures that resources remain available for critical detox, stabilization, and housing programs. The Chief Financial Officer directs all budgeting, financial reporting, and audit processes to maintain transparency and compliance with federal and state requirements. Sandra Possin analyzes the financial performance of the aerospace manufacturing and food service divisions, identifying opportunities to reinvest profits into social mission activities. This leadership role involves providing the Board with data-driven insights to inform strategic decision-making regarding capital investments and program expansion. By maintaining rigorous financial controls and optimizing revenue cycles, the Chief Financial Officer secures the stability required to support justice-involved individuals across Washington state, ultimately enabling the organization to scale its impact and fulfill its core social mission.

    Mark Behrends - Chief Operating Officer

    Mark Behrends, the Chief Operating Officer at Pioneer Human Services, manages the daily execution of complex social service programs and commercial business units. By optimizing operational workflows, Behrends ensures that job readiness training and federal reentry support reach the target population with maximum efficiency. The Chief Operating Officer coordinates across departments to integrate housing services with vocational training, creating a seamless experience for program participants. Mark Behrends monitors performance metrics to refine service delivery models, ensuring that the organization remains responsive to the evolving needs of communities throughout Washington state. This role requires close collaboration with the executive team to translate strategic goals into actionable operational plans. By streamlining internal processes and enhancing service capacity, the Chief Operating Officer supports the broader mission of reducing recidivism and promoting economic self-sufficiency for individuals navigating the criminal legal system.
    Mark Behrends

    Hilary Young - Chief of Staff

    Hilary Young, the Chief of Staff at Pioneer Human Services, manages the internal communications and administrative alignment of the executive leadership team. By facilitating cross-departmental collaboration, Young ensures that the strategic priorities set by the Chairman & Chief Executive Officer permeate every level of the organization. The Chief of Staff coordinates high-level projects, including the integration of new reentry support initiatives and the refinement of internal policy frameworks. Hilary Young acts as a primary liaison between the executive office and the broader staff, fostering a culture of accountability and mission-driven performance. This role involves managing the flow of information to the Board and ensuring that all operational units remain synchronized with the nonprofit's goals. By optimizing executive workflows and managing key organizational initiatives, the Chief of Staff directly supports the successful delivery of services to justice-involved individuals throughout the Washington state region.

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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.