Horizon Services Executive and Leadership Team

October, 2026

Leadership Overview

Horizon Services has 4 executives leading key functions including strategy, information technology, human resources, and organizational culture.

Committed to excellence in residential maintenance, Horizon Services delivers superior heating, cooling, and plumbing solutions while maintaining a focus on customer satisfaction and operational reliability across the Delaware region.

Leadership Roles at Horizon Services

  • President, Chief Executive Officer - Theodore Hsu
  • Chief Information Officer - John Souther
  • Chief Human Resources Officer - Elise Doyle
  • Chief People Officer (Interim) - Paul Argyropoulos
  • Theodore Hsu - President, Chief Executive Officer

    Theodore Hsu, the President, Chief Executive Officer at Horizon Services, directs the overarching strategic vision for all residential heating, air conditioning, and plumbing operations. By aligning corporate objectives with market demands, the President, Chief Executive Officer optimizes service delivery across the Delaware region. This leadership role involves constant evaluation of operational efficiency to ensure high-quality standards for every client interaction. Theodore Hsu maintains direct oversight of the executive team to foster growth and maintain the company's reputation for reliable sewer and drain cleaning services. Through rigorous analysis of industry trends, the President, Chief Executive Officer identifies new opportunities for expansion while upholding the core values established in 1987. By prioritizing long-term sustainability and service excellence, the President, Chief Executive Officer secures the competitive position of the firm within the residential construction and maintenance sector, ensuring consistent value for homeowners and stakeholders alike.

    John Souther - Chief Information Officer

    John Souther, the Chief Information Officer at Horizon Services, architects the digital infrastructure supporting all plumbing, heating, and cooling service dispatches. By implementing advanced software solutions, the Chief Information Officer streamlines communication between field technicians and the central office. This role involves managing complex data systems to improve response times for residential maintenance requests across the regional market. John Souther drives the integration of modern technology to enhance customer scheduling and inventory management for sewer and drain cleaning operations. By securing digital assets and optimizing internal workflows, the Chief Information Officer ensures seamless operational continuity. The Chief Information Officer collaborates with other leadership members to align technical capabilities with the broader business mission of providing efficient home services. Through continuous innovation in digital tools, the Chief Information Officer maintains the technological edge necessary for the company to thrive in a competitive landscape.

    Elise Doyle - Chief Human Resources Officer

    Elise Doyle, the Chief Human Resources Officer at Horizon Services, manages the recruitment, training, and retention of skilled technicians specializing in heating, air conditioning, and plumbing. By developing comprehensive talent acquisition strategies, the Chief Human Resources Officer ensures the workforce meets the high demand for residential services throughout the Delaware area. This leadership role involves designing professional development programs that elevate the technical proficiency of the entire staff. Elise Doyle oversees performance management systems to maintain the quality standards expected by homeowners. By fostering a culture of safety and excellence, the Chief Human Resources Officer supports the operational goals of the company. The Chief Human Resources Officer works closely with the executive team to align staffing levels with seasonal service requirements. Through the implementation of robust employee engagement initiatives, the Chief Human Resources Officer drives organizational stability and ensures the company retains top-tier talent in the competitive construction and maintenance industry.

    Paul Argyropoulos - Chief People Officer (Interim)

    Paul Argyropoulos, the Chief People Officer (Interim) at Horizon Services, cultivates the internal culture and organizational health necessary to support the company's residential service mission. By focusing on employee well-being and workplace satisfaction, the Chief People Officer (Interim) enhances the overall productivity of teams dedicated to heating, cooling, and sewer maintenance. This role involves facilitating communication across departments to ensure alignment with the company's long-term vision. Paul Argyropoulos implements initiatives that promote professional growth and internal collaboration among the workforce. By monitoring organizational climate and addressing personnel needs, the Chief People Officer (Interim) strengthens the foundation of the business. The Chief People Officer (Interim) partners with leadership to refine internal policies that support the delivery of high-quality plumbing and drain cleaning services. Through a dedicated focus on the human element of the business, the Chief People Officer (Interim) ensures the company remains a preferred employer while maintaining exceptional service standards for all residential clients.

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    Frequently Asked Questions Regarding Horizon Services Top Executives and Leadership Team

    Who leads Horizon Services?
    Horizon Services is led by Theodore Hsu (President, Chief Executive Officer), along with executives such as John Souther (Chief Information Officer) and Elise Doyle (Chief Human Resources Officer).
    Who is part of Horizon Services’s executive team?
    The executive team of Horizon Services includes leaders such as Theodore Hsu (President, Chief Executive Officer), John Souther (Chief Information Officer), Elise Doyle (Chief Human Resources Officer) and other senior executives.
    How many executives does Horizon Services have?
    Horizon Services has 4 executives leading key business areas.
    What roles are included in Horizon Services’s leadership team?
    The leadership team of Horizon Services includes roles such as President, Chief Executive Officer, Chief Information Officer, Chief Human Resources Officer, Chief People Officer (Interim).