Visterra Executive and Leadership Team

September, 2026

Leadership Overview

Visterra has 7 executives leading key functions including strategy, operations, regional management, and service delivery.

Focused on sustainable growth and nationwide expansion, Visterra delivers comprehensive commercial landscaping solutions while fostering trust-based partnerships across the United States to maintain a competitive edge in local markets.

Leadership Roles at Visterra

  • Chief Executive Officer - Alan Handley
  • Chief Operating Officer - Ronald Harris
  • Midwest Region President - Anthony Wilson
  • President, Services (Riverside) - Mark Levine
  • President - Mark Aquilino
  • President - John Sliwicki
  • Chief of Staff (Central Region) - Andrew Dugan
  • Alan Handley - Chief Executive Officer

    Alan Handley, the Chief Executive Officer at Visterra, directs the overarching corporate strategy and nationwide expansion initiatives. Overseeing the integration of strategic acquisitions, the Chief Executive Officer ensures that all partner companies maintain alignment with the core mission of providing high-quality commercial landscaping services. Handley architects the long-term vision for sustainable business practices, driving growth across diverse regional markets in the United States. By coordinating with the Board and senior leadership, the Chief Executive Officer secures the necessary resources to scale operations effectively. This leadership role involves cultivating trust-based relationships with clients and partners to solidify market presence. Through rigorous oversight of organizational performance, Alan Handley optimizes the competitive positioning of the entire group. Ultimately, Handley maintains the financial health and operational integrity required to support the company's ambitious goals for national footprint development and service excellence.
    Alan Handley

    Ronald Harris - Chief Operating Officer

    Ronald Harris, the Chief Operating Officer at Visterra, manages the daily execution of maintenance, construction, and snow removal services. Overseeing the centralized support infrastructure, the Chief Operating Officer ensures that regional teams possess the tools and resources needed for operational success. Harris drives efficiency across the organization by standardizing processes and implementing best practices for landscaping enhancements. This role involves close collaboration with regional leaders to monitor service quality and client satisfaction metrics. By streamlining supply chain logistics and equipment management, the Chief Operating Officer enhances the profitability of local market operations. Ronald Harris monitors performance data to identify opportunities for process improvement and cost reduction. Through the application of rigorous operational standards, Harris supports the company's commitment to delivering reliable, high-value landscaping solutions to commercial entities throughout the United States.

    Anthony Wilson - Midwest Region President

    Anthony Wilson, the Midwest Region President at Visterra, leads all landscaping and construction operations across the Midwest market. Overseeing regional business development, the Midwest Region President secures new commercial contracts while maintaining strong relationships with existing clients. Wilson directs the implementation of snow removal and maintenance programs, ensuring that service delivery meets the high standards expected by commercial entities. This role involves managing regional personnel and fostering a culture of safety and professional excellence. By analyzing local market dynamics, the Midwest Region President identifies opportunities for service expansion and competitive differentiation. Anthony Wilson collaborates with corporate leadership to integrate new acquisitions into the regional portfolio seamlessly. Through the effective management of regional assets and labor, Wilson drives revenue growth and operational efficiency. Ultimately, the Midwest Region President ensures that the company remains the preferred provider for comprehensive landscaping solutions throughout the Midwest.

    Mark Levine - President, Services (Riverside)

    Mark Levine, the President, Services (Riverside) at Visterra, manages the specialized service offerings and client portfolios associated with the Riverside division. Overseeing the delivery of high-end landscaping enhancements and maintenance, the President, Services (Riverside) ensures that every project reflects the company's commitment to quality and sustainability. Levine directs the technical teams responsible for complex construction and site development tasks. This role involves coordinating with regional managers to align service delivery with broader corporate objectives. By focusing on client retention and service innovation, the President, Services (Riverside) strengthens the company's reputation in the local market. Mark Levine monitors project budgets and timelines to ensure profitability and operational excellence. Through the strategic oversight of service-specific resources, Levine supports the company's goal of providing comprehensive landscaping solutions. Ultimately, the President, Services (Riverside) drives the success of the Riverside division by maintaining rigorous standards of performance and client care.

    Mark Aquilino - President

    Mark Aquilino, the President at Visterra, focuses on the strategic integration of newly acquired landscaping firms into the national platform. Overseeing the transition of business processes, the President ensures that acquired entities adopt the company's centralized support model and sustainability practices. Aquilino directs the efforts to harmonize service quality across diverse geographic locations, enhancing the overall competitive edge of the group. This role involves identifying potential acquisition targets that align with the company's long-term growth strategy. By building strong relationships with the leadership of partner companies, the President facilitates a smooth cultural and operational merger. Mark Aquilino monitors the performance of integrated units to ensure they contribute positively to the company's financial objectives. Through the application of deep industry expertise, Aquilino drives the expansion of the company's footprint. Ultimately, the President secures the long-term viability and market dominance of the organization through disciplined growth and strategic alignment.

    John Sliwicki - President

    John Sliwicki, the President at Visterra, oversees the development and execution of large-scale commercial construction and landscaping projects. Directing the technical and field operations teams, the President ensures that complex site requirements are met with precision and efficiency. Sliwicki manages the allocation of heavy equipment and specialized labor to optimize project timelines and cost-effectiveness. This role involves collaborating with the executive team to refine service offerings and expand the company's capabilities in the construction sector. By implementing advanced project management methodologies, the President improves the delivery of landscaping solutions for major commercial clients. John Sliwicki monitors safety compliance and quality control across all active job sites to maintain the company's high standards. Through the strategic management of construction resources, Sliwicki drives the company's reputation for reliability and technical excellence. Ultimately, the President supports the company's growth by delivering superior results on high-impact landscaping and construction projects.
    John Sliwicki

    Andrew Dugan - Chief of Staff (Central Region)

    Andrew Dugan, the Chief of Staff (Central Region) at Visterra, coordinates strategic initiatives and administrative functions within the central territory. Overseeing the alignment of regional objectives with corporate goals, the Chief of Staff (Central Region) facilitates communication between executive leadership and local management teams. Dugan manages complex projects related to regional expansion and partnership integration, ensuring that all activities adhere to the company's sustainability standards. This role involves analyzing market trends to support informed decision-making regarding service enhancements and resource allocation. By optimizing internal workflows, Andrew Dugan improves the responsiveness of the central operations team to client needs. Through the management of cross-functional teams, Dugan drives the successful execution of landscaping projects across the region. Ultimately, the Chief of Staff (Central Region) strengthens the operational foundation necessary for sustained growth and consistent service delivery in the central United States.

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    Frequently Asked Questions Regarding Visterra Top Executives and Leadership Team

    Who leads Visterra?
    Visterra is led by Alan Handley (Chief Executive Officer), along with executives such as Ronald Harris (Chief Operating Officer) and Anthony Wilson (Midwest Region President).
    Who is part of Visterra’s executive team?
    The executive team of Visterra includes leaders such as Alan Handley (Chief Executive Officer), Ronald Harris (Chief Operating Officer), Anthony Wilson (Midwest Region President) and other senior executives.
    How many executives does Visterra have?
    Visterra has 7 executives leading key business areas.
    What roles are included in Visterra’s leadership team?
    The leadership team of Visterra includes roles such as Chief Executive Officer, Chief Operating Officer, Midwest Region President, President, Services (Riverside), President.