Marsden Services Executive and Leadership Team

June, 2026

Leadership Overview

Marsden Services has 10 executives leading key functions including strategy, operations, human resources, and market expansion.

Driven by a legacy of comprehensive facility solutions, Marsden Services is dedicated to providing janitorial, security, building maintenance, and specialty property services across the United States, upholding a philosophy of operational excellence and client-focused delivery.

Leadership Roles at Marsden Services

  • Chief Executive Officer - Guy Mingo
  • Chief Executive Officer and Founder At Patmos Baptist Mission of Haiti - Riccardo Gelus
  • Chief Operating Officer - Peter Cain
  • President, Marsden (South) - Mark Dorenkott
  • President, Mechanical Services - Ewan Stewart
  • President, Mergers & Acquisitions - Thomas Kruse
  • President, Janitorial (Western Division) - Chris Ellis
  • President - Janitorial Eastern Division - Chip Niswonger
  • President - William Marsden
  • Chief Human Resources Officer - Kirsten Van Hulzen
  • Guy Mingo - Chief Executive Officer

    Guy Mingo, the Chief Executive Officer at Marsden Services, directs the overarching corporate strategy and operational framework for the full-spectrum facility services provider. Overseeing all business units, Mingo ensures alignment with the company's long-standing mission of delivering comprehensive janitorial, security, building maintenance, and specialty property services. This leadership role involves driving market growth and maintaining the high standards established since the company's inception in 1952. By focusing on strategic expansion and operational efficiency, Guy Mingo guides Marsden Services' presence throughout the United States, solidifying its position as a leader in the facility services industry. The Chief Executive Officer's purview encompasses fostering innovation and ensuring the sustained success of all service divisions.
    Guy Mingo

    Riccardo Gelus - Chief Executive Officer and Founder At Patmos Baptist Mission of Haiti

    Riccardo Gelus, the Chief Executive Officer and Founder At Patmos Baptist Mission of Haiti at Marsden Services, spearheads initiatives that bridge corporate social responsibility with operational outreach. Gelus focuses on developing strategic partnerships and community engagement programs that align with Marsden Services' broader mission. This leadership position involves cultivating relationships and identifying opportunities for service expansion into new demographic areas, ensuring that the company's impact extends beyond its core business functions. By championing humanitarian efforts, Riccardo Gelus reinforces the company's commitment to positive societal contribution while also exploring avenues for synergistic growth. The Chief Executive Officer and Founder At Patmos Baptist Mission of Haiti's role is critical in shaping the company's ethical framework and public perception.

    Peter Cain - Chief Operating Officer

    Peter Cain, the Chief Operating Officer at Marsden Services, executes the day-to-day operational strategies across all service lines, including janitorial, security, and building maintenance. Overseeing the integration of new technologies and process improvements, Cain ensures maximum efficiency and service quality throughout the United States. This critical role involves managing resource allocation and optimizing workflows to meet client demands effectively. By driving operational excellence, Peter Cain directly supports the company's expansion and its ability to deliver consistent, high-quality facility services. The Chief Operating Officer's focus remains on streamlining operations and enhancing the delivery model to maintain Marsden Services' competitive edge in the market.

    Mark Dorenkott - President, Marsden (South)

    Mark Dorenkott, the President, Marsden (South) at Marsden Services, leads all operational and strategic initiatives for the southern region of the United States. Dorenkott focuses on expanding market share and enhancing service delivery for janitorial, security, and building maintenance operations within this territory. This executive role involves managing regional teams, fostering client relationships, and ensuring adherence to company standards. By driving regional growth and operational efficiency, Mark Dorenkott plays a key part in Marsden Services' overall national expansion strategy. The President, Marsden (South)'s leadership ensures localized service excellence while maintaining alignment with the company's broader objectives.

    Ewan Stewart - President, Mechanical Services

    Ewan Stewart, the President, Mechanical Services at Marsden Services, directs the strategic development and operational execution of the company's mechanical services division. Stewart oversees the expansion of HVAC, plumbing, and electrical maintenance offerings, ensuring high-quality service delivery across all client facilities. This leadership position involves managing specialized teams, implementing advanced maintenance technologies, and driving revenue growth within this critical sector. By focusing on innovation and operational efficiency, Ewan Stewart strengthens Marsden Services' comprehensive facility solutions portfolio. The President, Mechanical Services's expertise is crucial for maintaining client satisfaction and expanding the company's footprint in specialized building maintenance.

    Thomas Kruse - President, Mergers & Acquisitions

    Thomas Kruse, the President, Mergers & Acquisitions at Marsden Services, spearheads the company's strategic growth through targeted acquisitions and integration efforts. Kruse identifies and evaluates potential acquisition targets that align with Marsden Services' expansion goals and core competencies in facility management. This executive role involves leading due diligence processes, negotiating deal structures, and ensuring seamless integration of acquired entities into the existing operational framework. By driving strategic M&A activities, Thomas Kruse significantly contributes to the company's market consolidation and diversification. The President, Mergers & Acquisitions's focus is on enhancing Marsden Services' national presence and service capabilities through calculated business development.
    Thomas Kruse

    Chris Ellis - President, Janitorial (Western Division)

    Chris Ellis, the President, Janitorial (Western Division) at Marsden Services, leads the strategic direction and operational management of janitorial services across the western United States. Ellis focuses on enhancing service quality, expanding client portfolios, and optimizing operational efficiency within this key division. This leadership role involves managing regional teams, implementing best practices, and ensuring client satisfaction through reliable and thorough cleaning solutions. By driving growth and operational excellence in the western territories, Chris Ellis directly supports Marsden Services' national janitorial service delivery. The President, Janitorial (Western Division)'s commitment to high standards ensures consistent service delivery and client retention.

    Chip Niswonger - President - Janitorial Eastern Division

    Chip Niswonger, the President - Janitorial Eastern Division at Marsden Services, directs the operational strategy and market development for janitorial services throughout the eastern United States. Niswonger focuses on expanding the client base, enhancing service delivery protocols, and ensuring consistent quality across all eastern operations. This executive position involves leading regional teams, fostering strong client relationships, and driving revenue growth within the division. By championing operational excellence and client-centric approaches, Chip Niswonger significantly contributes to Marsden Services' national janitorial service leadership. The President - Janitorial Eastern Division's strategic oversight ensures robust performance and market penetration in key eastern territories.

    William Marsden - President

    William Marsden, the President at Marsden Services, oversees key strategic initiatives and operational directives that shape the company's future trajectory. Marsden focuses on maintaining the company's legacy of comprehensive facility services while driving innovation and market expansion across the United States. This leadership role involves guiding departmental heads, ensuring cross-functional alignment, and upholding the core values established since the company's founding. By championing operational integrity and client satisfaction, William Marsden reinforces Marsden Services' commitment to excellence in janitorial, security, and building maintenance. The President's vision is integral to sustaining the company's growth and market leadership.

    Kirsten Van Hulzen - Chief Human Resources Officer

    Kirsten Van Hulzen, the Chief Human Resources Officer at Marsden Services, directs all human capital strategies, talent acquisition, and employee development initiatives. Overseeing the workforce across diverse service sectors, Van Hulzen ensures robust HR policies that support a culture of engagement and professional growth. This leadership function is vital for maintaining a skilled and motivated team capable of delivering comprehensive facility services nationwide. By championing employee well-being and fostering a positive work environment, Kirsten Van Hulzen directly contributes to operational stability and service excellence. The Chief Human Resources Officer's responsibilities include managing compensation, benefits, and compliance, ensuring Marsden Services attracts and retains top talent.
    Kirsten Van Hulzen

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    Frequently Asked Questions Regarding Marsden Services Top Executives and Leadership Team

    Who leads Marsden Services?
    Marsden Services is led by Guy Mingo (Chief Executive Officer), along with executives such as Riccardo Gelus (Chief Executive Officer and Founder At Patmos Baptist Mission of Haiti) and Peter Cain (Chief Operating Officer).
    Who is part of Marsden Services’s executive team?
    The executive team of Marsden Services includes leaders such as Guy Mingo (Chief Executive Officer), Riccardo Gelus (Chief Executive Officer and Founder At Patmos Baptist Mission of Haiti), Peter Cain (Chief Operating Officer) and other senior executives.
    How many executives does Marsden Services have?
    Marsden Services has 10 executives leading key business areas.
    What roles are included in Marsden Services’s leadership team?
    The leadership team of Marsden Services includes roles such as Chief Executive Officer, Chief Executive Officer and Founder At Patmos Baptist Mission of Haiti, Chief Operating Officer, President, Marsden (South), President, Mechanical Services.