TSI Executive and Leadership Team

August, 2026

Leadership Overview

TSI has 10 executives leading key functions including strategy, technology, financial oversight, and operational management.

Focused on precision measurement and data analytics, TSI delivers advanced instrumentation to global industries while maintaining a commitment to safety, environmental health, and manufacturing excellence through rigorous engineering standards.

Leadership Roles at TSI

  • Chief Executive Officer - Michael Fetko
  • Chief Executive Officer & President - Michael Ellis
  • President & Chief Executive Officer - Thomas Kennedy
  • Chief Executive Officer & Founder - Vantonio Fraley
  • Chief Financial Officer - Tom Smith
  • President - Michael Hankirk
  • President - Benjamin Yelle
  • President - Thomas Sorenson
  • President - Terry Toliver
  • Chief Technology Officer - Istiaq Ahamad
  • Michael Fetko - Chief Executive Officer

    Michael Fetko, the Chief Executive Officer at TSI, directs the overarching strategic vision for precision measurement instrumentation. Fetko manages the alignment of product development with the evolving needs of the occupational health and safety sectors. By overseeing global market expansion, the Chief Executive Officer ensures that TSI maintains a competitive edge in environmental monitoring and HVAC testing. This leadership role involves constant collaboration with the board to optimize resource allocation across manufacturing facilities. Michael Fetko drives the implementation of data analytics solutions that empower clients to improve operational efficiency. Through the integration of advanced sensor technology, the Chief Executive Officer secures the company's position as a leader in industrial testing equipment. Ultimately, Fetko fosters a culture of innovation that supports long-term growth and technical reliability across all international markets.
    Michael Fetko

    Michael Ellis - Chief Executive Officer & President

    Michael Ellis, the Chief Executive Officer & President at TSI, governs the daily operational execution and long-term corporate strategy. Ellis oversees the integration of measurement technologies into healthcare and research applications, ensuring that product performance meets stringent industry standards. As the Chief Executive Officer & President, Ellis coordinates cross-functional teams to streamline the manufacturing lifecycle from design to final delivery. This position requires managing complex supply chains to support North American and international operations. Michael Ellis drives the adoption of new data analytics platforms that enhance the value proposition for industrial clients. By prioritizing technical precision, the Chief Executive Officer & President maintains the reputation of the company as a trusted partner in environmental safety. Ultimately, Ellis ensures that all business units remain focused on delivering high-quality instrumentation that solves critical measurement challenges.

    Thomas Kennedy - President & Chief Executive Officer

    Thomas Kennedy, the President & Chief Executive Officer at TSI, architects the strategic roadmap for the company's diverse portfolio of measurement instruments. Kennedy manages the expansion of the firm's footprint within the manufacturing and HVAC sectors, focusing on high-growth regions. As the President & Chief Executive Officer, Kennedy aligns research and development efforts with emerging market demands for data-driven insights. This role involves overseeing the financial health of the organization while driving initiatives that improve product reliability. Thomas Kennedy ensures that the company remains at the forefront of occupational health and safety through continuous technological advancement. By fostering partnerships with key industry stakeholders, the President & Chief Executive Officer expands the reach of TSI solutions globally. Ultimately, Kennedy secures the company's operational stability and market relevance through disciplined leadership and a focus on engineering excellence.
    Thomas Kennedy

    Vantonio Fraley - Chief Executive Officer & Founder

    Vantonio Fraley, the Chief Executive Officer & Founder at TSI, defines the core mission and technical philosophy of the organization. Fraley oversees the foundational research initiatives that drive the development of proprietary measurement and data analytics solutions. As the Chief Executive Officer & Founder, Fraley ensures that the company maintains its commitment to precision and quality across all product lines, including environmental and healthcare instrumentation. This leadership role involves guiding the long-term vision for the company's technological evolution. Vantonio Fraley drives the integration of advanced sensor capabilities into modern manufacturing workflows. By focusing on the intersection of data analytics and physical measurement, the Chief Executive Officer & Founder maintains the company's status as an industry pioneer. Ultimately, Fraley secures the enduring legacy of the firm by prioritizing innovation and technical integrity in every project.
    Vantonio Fraley

    Tom Smith - Chief Financial Officer

    Tom Smith, the Chief Financial Officer at TSI, manages the financial planning, reporting, and capital allocation strategies for the organization. Smith oversees the fiscal health of the company, ensuring that resources are effectively distributed to support manufacturing and research operations. As the Chief Financial Officer, Smith analyzes market trends to provide actionable insights that guide the company's growth strategy. This role involves maintaining rigorous financial controls and ensuring compliance across all international business units. Tom Smith drives the optimization of operational budgets to maximize profitability while maintaining high standards for product quality. By overseeing financial risk management, the Chief Financial Officer supports the long-term stability of the firm. Ultimately, Smith ensures that the company possesses the necessary capital to invest in new measurement technologies and expand its global market presence.

    Michael Hankirk - President

    Michael Hankirk, the President at TSI, oversees the internal operational efficiency and the execution of manufacturing strategies. Hankirk manages the production workflows for the company's specialized instrumentation, ensuring that all output meets the highest quality standards for the occupational health and safety sectors. As the President, Hankirk coordinates with department heads to streamline processes and reduce lead times for global clients. This role involves driving continuous improvement initiatives that enhance the reliability of measurement tools. Michael Hankirk ensures that the company's manufacturing capabilities remain aligned with the evolving needs of the HVAC and environmental industries. By focusing on operational excellence, the President supports the company's ability to scale production effectively. Ultimately, Hankirk secures the company's competitive advantage by maintaining a high-performance manufacturing environment that delivers consistent results.

    Benjamin Yelle - President

    Benjamin Yelle, the President at TSI, directs the strategic expansion of the company's service and application guidance divisions. Yelle oversees the teams that provide technical support and training to clients in the healthcare and research industries. As the President, Yelle ensures that the company's data analytics solutions are effectively implemented to solve complex measurement challenges. This role involves managing relationships with key partners to broaden the reach of the company's instrumentation portfolio. Benjamin Yelle drives the development of customer-centric service models that enhance the overall value of the firm's products. By focusing on the application of technology in real-world scenarios, the President ensures that clients receive maximum utility from their investments. Ultimately, Yelle secures the company's reputation for excellence by prioritizing customer success and technical support across all regional markets.

    Thomas Sorenson - President

    Thomas Sorenson, the President at TSI, manages the commercial strategy and market development for the company's environmental and industrial testing equipment. Sorenson oversees the sales and marketing functions, ensuring that the company's value proposition reaches target audiences in the manufacturing and safety sectors. As the President, Sorenson coordinates with the product teams to identify new market opportunities for advanced measurement tools. This role involves driving revenue growth through the expansion of the company's presence in key international territories. Thomas Sorenson ensures that the commercial team remains focused on delivering solutions that address the specific needs of the HVAC and environmental industries. By analyzing market data, the President supports the company's efforts to maintain a strong competitive position. Ultimately, Sorenson secures the company's growth by fostering strong client relationships and driving effective market penetration.

    Terry Toliver - President

    Terry Toliver, the President at TSI, oversees the strategic integration of new technologies into the company's existing product lines. Toliver manages the cross-departmental initiatives that focus on enhancing the data analytics capabilities of the firm's measurement instruments. As the President, Toliver ensures that the company's research and development efforts are translated into commercially viable products for the healthcare and manufacturing sectors. This role involves coordinating with the engineering and sales teams to ensure that new features meet the demands of the market. Terry Toliver drives the adoption of innovative testing methodologies that improve the accuracy and reliability of the company's equipment. By focusing on product lifecycle management, the President supports the company's commitment to technical excellence. Ultimately, Toliver secures the company's future by ensuring that all products remain at the cutting edge of measurement technology.

    Istiaq Ahamad - Chief Technology Officer

    Istiaq Ahamad, the Chief Technology Officer at TSI, directs the research and development of advanced measurement instrumentation and data analytics software. Ahamad oversees the engineering teams responsible for creating solutions for the HVAC, environmental, and manufacturing industries. As the Chief Technology Officer, Ahamad ensures that all product designs incorporate the latest sensor technology to provide accurate application guidance. This role involves collaborating with other executives to align technical capabilities with market requirements. Istiaq Ahamad drives the digital transformation of the company's product portfolio, focusing on cloud-based data integration. By managing the technical roadmap, the Chief Technology Officer supports the company's mission to provide reliable measurement tools. Ultimately, Ahamad ensures that the firm remains a leader in technical innovation by continuously improving the performance and connectivity of all instrumentation systems.

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    Frequently Asked Questions Regarding TSI Top Executives and Leadership Team

    Who leads TSI?
    TSI is led by Michael Fetko (Chief Executive Officer), along with executives such as Michael Ellis (Chief Executive Officer & President) and Thomas Kennedy (President & Chief Executive Officer).
    Who is part of TSI’s executive team?
    The executive team of TSI includes leaders such as Michael Fetko (Chief Executive Officer), Michael Ellis (Chief Executive Officer & President), Thomas Kennedy (President & Chief Executive Officer) and other senior executives.
    How many executives does TSI have?
    TSI has 10 executives leading key business areas.
    What roles are included in TSI’s leadership team?
    The leadership team of TSI includes roles such as Chief Executive Officer, Chief Executive Officer & President, President & Chief Executive Officer, Chief Executive Officer & Founder, Chief Financial Officer.