DLH Executive and Leadership Team

August, 2026

Leadership Overview

DLH has 4 executives leading key functions including strategy, financial oversight, operational management, and medical research.

Focused on delivering advanced technology-enabled business process outsourcing, DLH maintains a commitment to public health research and analytics services that empower federal agencies to achieve mission-critical objectives through digital transformation and cybersecurity.

Leadership Roles at DLH

  • President & Chief Executive Officer - Kathryn JohnBull
  • Chief Financial Officer - Steven Oroho
  • President - Fred Vago
  • Chief Medical Officer, Dlh Corporate - Joseph Martin
  • Kathryn JohnBull - President & Chief Executive Officer

    Kathryn JohnBull, the President & Chief Executive Officer at DLH, directs the overarching corporate strategy and long-term vision for the organization. Overseeing the integration of technology-enabled business process outsourcing, JohnBull ensures alignment between internal capabilities and the complex requirements of federal clients like the National Institutes of Health. This leadership role involves constant evaluation of market trends in artificial intelligence and machine learning to maintain a competitive edge in the public health sector. By fostering collaboration across all departments, the President & Chief Executive Officer drives operational excellence and sustainable growth. Kathryn JohnBull manages high-level relationships with key stakeholders, ensuring that the company remains a trusted partner for the Defense Health Agency. Through rigorous oversight of program management solutions, the executive secures the firm's position as a leader in digital transformation and cybersecurity ecosystems across the United States.
    Kathryn JohnBull

    Steven Oroho - Chief Financial Officer

    Steven Oroho, the Chief Financial Officer at DLH, manages the fiscal health and capital allocation strategies necessary to support large-scale government contracts. Overseeing financial reporting, budgeting, and risk management, the Chief Financial Officer ensures that resources remain directed toward high-impact areas like cloud enablement and big data analytics. Steven Oroho maintains strict compliance with federal procurement regulations while optimizing the cost structure for complex program management solutions. This role requires constant interaction with the Board to communicate financial performance and long-term value creation. By implementing robust financial controls, the executive supports the expansion of services provided to the US Navy Naval Information Warfare Center. Through precise fiscal planning, Oroho enables the company to invest in cutting-edge modeling and simulation technologies, ultimately driving the financial stability required to sustain long-term growth within the competitive federal technology consulting landscape.
    Steven Oroho

    Fred Vago - President

    Fred Vago, the President at DLH, directs the execution of operational workflows and the delivery of technology-enabled business process outsourcing services. Overseeing the daily performance of program management teams, Vago ensures that service delivery meets the rigorous standards of the Defense Health Agency and other federal partners. This leadership role involves scaling internal processes to accommodate the increasing demand for cybersecurity and cloud enablement solutions. By streamlining project lifecycles, the President improves efficiency across all service lines, from big data analytics to complex modeling and simulation. Fred Vago coordinates with cross-functional leaders to ensure that operational output aligns with the broader corporate mission of supporting public health research. Through a focus on operational scalability and quality assurance, Vago drives the successful implementation of digital transformation initiatives, ensuring that the company consistently delivers high-value outcomes for clients across the United States.

    Joseph Martin - Chief Medical Officer, Dlh Corporate

    Joseph Martin, the Chief Medical Officer, Dlh Corporate at DLH, provides clinical expertise and strategic guidance for all public health research and analytics services. Overseeing the medical integrity of programs delivered to the National Institutes of Health, Martin ensures that data-driven insights remain grounded in current clinical standards. This leadership role involves bridging the gap between advanced technology, such as artificial intelligence, and practical medical applications. By advising on the development of health-focused digital transformation tools, the Chief Medical Officer, Dlh Corporate enhances the efficacy of solutions provided to the Tele-medicine and Advanced Technology Research Center. Joseph Martin collaborates with technical teams to refine modeling and simulation capabilities, ensuring that research outcomes directly benefit patient care and public health initiatives. Through this specialized oversight, the executive maintains the company's reputation as a premier provider of science-backed, technology-enabled solutions for the federal government.

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    Frequently Asked Questions Regarding DLH Top Executives and Leadership Team

    Who leads DLH?
    DLH is led by Kathryn JohnBull (President & Chief Executive Officer), along with executives such as Steven Oroho (Chief Financial Officer) and Fred Vago (President).
    Who is part of DLH’s executive team?
    The executive team of DLH includes leaders such as Kathryn JohnBull (President & Chief Executive Officer), Steven Oroho (Chief Financial Officer), Fred Vago (President) and other senior executives.
    How many executives does DLH have?
    DLH has 4 executives leading key business areas.
    What roles are included in DLH’s leadership team?
    The leadership team of DLH includes roles such as President & Chief Executive Officer, Chief Financial Officer, President, Chief Medical Officer, Dlh Corporate.