Pioneer Human Services Executive and Leadership Team

September, 2026

Leadership Overview

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

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

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 aligning social enterprise goals with the mission of supporting justice-involved individuals, Ono architects long-term growth and sustainability. The Chairman & Chief Executive Officer oversees the integration of aerospace manufacturing and food service operations to create viable career pathways. Through consistent engagement with the Board, Hideki Ono ensures that all detox, stabilization, and housing programs remain effective and scalable. This leadership role involves navigating complex regulatory environments while expanding the reach of reentry support services across Washington state. By prioritizing the dismantling of mass incarceration barriers, the Chairman & Chief Executive Officer drives the organization toward greater community impact. Ultimately, Ono secures the resources necessary to empower individuals to rebuild lives through meaningful employment and comprehensive social support systems.
    Hideki Ono

    Sandra Possin - Chief Financial Officer

    Sandra Possin, the Chief Financial Officer at Pioneer Human Services, manages the fiscal health and economic stability of the nonprofit. Overseeing complex budgetary requirements, the Chief Financial Officer ensures that capital allocation supports critical reentry programs and social enterprise business units. Sandra Possin directs financial reporting, audit compliance, and resource distribution to maximize the impact of every dollar invested in justice-involved individuals. By analyzing market trends within the aerospace and food service sectors, the Chief Financial Officer identifies opportunities for revenue growth that directly fund housing and treatment initiatives. This leadership role requires constant collaboration with executive peers to maintain operational efficiency across Washington state. Through rigorous financial planning, Possin mitigates risk and strengthens the organization's ability to provide long-term career training. Ultimately, the Chief Financial Officer sustains the financial foundation required to support the mission of empowering individuals through social entrepreneurship.

    Mark Behrends - Chief Operating Officer

    Mark Behrends, the Chief Operating Officer at Pioneer Human Services, executes the daily operational functions of the organization's diverse service portfolio. Overseeing the delivery of detox, stabilization, and career training programs, the Chief Operating Officer ensures that service quality meets the needs of justice-involved individuals. Mark Behrends directs the logistics of social enterprise businesses, including aerospace manufacturing and food services, to provide stable employment pathways. This leadership role involves managing regional operations across Washington state to ensure consistent access to housing and reentry support. By coordinating with department heads, the Chief Operating Officer optimizes service delivery models to improve participant outcomes. Behrends drives efficiency in program implementation while maintaining strict adherence to safety and quality standards. Through hands-on management of operational workflows, the Chief Operating Officer strengthens the organization's ability to empower individuals. Ultimately, Behrends ensures that all operational activities directly contribute to the mission of successful community reintegration.
    Mark Behrends

    Hilary Young - Chief of Staff

    Hilary Young, the Chief of Staff at Pioneer Human Services, coordinates internal operations and facilitates communication across all departments. By streamlining administrative workflows, the Chief of Staff ensures that the organization remains agile in delivering housing, treatment, and job readiness training. Hilary Young manages high-priority projects that bridge the gap between executive strategy and frontline service delivery. This leadership role involves optimizing internal processes to support the diverse needs of justice-involved individuals throughout Washington state. By fostering collaboration among leadership teams, the Chief of Staff drives organizational alignment and operational excellence. Young monitors key performance indicators to ensure that social enterprise goals remain consistent with the broader mission of dismantling incarceration barriers. Through proactive management of internal resources, the Chief of Staff enhances the overall capacity of the organization to provide effective reentry support. Ultimately, Young maintains the structural integrity necessary for successful program execution.

    Explore Leadership Teams in Non-Profit & Charitable Organizations

    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.