Swagelok Executive and Leadership Team

October, 2026

Leadership Overview

Swagelok has 10 executives leading key functions including strategy, operations, human resources, and regional market management.

Focused on delivering high-quality fluid system components, Swagelok maintains a commitment to safety and reliability. This leadership team drives global industrial efficiency through precision engineering and customer-centric manufacturing solutions.

Leadership Roles at Swagelok

  • President & Chief Executive Officer - Jill Whelan
  • Chief Operating Officer - John Plakio
  • President - Sebastien Day
  • President - Dalles Pohl
  • President - James Uhl
  • President - Andrew Curtiss
  • President - Jim Crozier
  • President & Owner - James Trolinger
  • Chief Human Resources Officer, Sotera Health - Sarah Turner
  • Chief Human Resources Officer - Hannah Delis
  • Jill Whelan - President & Chief Executive Officer

    Jill Whelan, the President & Chief Executive Officer at Swagelok, directs the overarching corporate strategy for industrial fluid system manufacturing. Whelan oversees the alignment of global production standards with the evolving needs of demanding applications across diverse sectors. By prioritizing innovation in leak-tight technology, the President & Chief Executive Officer ensures that the organization maintains a competitive edge in fluid system reliability. This leadership role involves constant collaboration with the board to refine long-term growth objectives and operational excellence. Jill Whelan drives the company mission by fostering a culture of quality and safety that permeates every level of the manufacturing process. Through the management of international market expansion, the President & Chief Executive Officer secures the firm's position as a worldwide leader in fluid handling solutions, ultimately delivering consistent value to customers and stakeholders while upholding the legacy of precision engineering.
    Jill Whelan

    John Plakio - Chief Operating Officer

    John Plakio, the Chief Operating Officer at Swagelok, manages the daily execution of manufacturing processes and supply chain logistics. Plakio optimizes production workflows to ensure that high-quality fluid system components reach global markets with maximum efficiency. Overseeing the integration of advanced manufacturing technologies, the Chief Operating Officer maintains rigorous safety standards across all facilities. This role requires constant coordination with regional leaders to streamline distribution networks and improve lead times for critical industrial applications. John Plakio drives operational performance by identifying bottlenecks and implementing scalable solutions that support the company's commitment to reliability. By focusing on lean manufacturing principles, the Chief Operating Officer enhances the overall productivity of the organization. Plakio ensures that the infrastructure remains robust enough to handle complex fluid system demands, thereby supporting the broader strategic goals of the company while maintaining the highest levels of product integrity.

    Sebastien Day - President

    Sebastien Day, the President at Swagelok, oversees the strategic direction and market performance of specific regional operations. Day directs the implementation of localized business strategies that align with the company's global standards for fluid system manufacturing. By managing key customer relationships and identifying growth opportunities within the region, the President ensures that the company remains responsive to the unique demands of local industrial sectors. This leadership role involves coordinating with the broader executive team to optimize resource allocation and improve service delivery. Sebastien Day drives regional revenue growth by focusing on the expansion of product availability and technical support services. The President monitors market trends to anticipate shifts in demand for liquids and gases in demanding applications. Through these efforts, Day strengthens the company's market presence, ensuring that the organization continues to provide reliable, high-quality solutions that meet the specific needs of regional clients.

    Dalles Pohl - President

    Dalles Pohl, the President at Swagelok, manages the strategic initiatives related to product innovation and technical application support. Pohl oversees the development of specialized fluid system solutions that address the unique challenges of high-pressure and high-temperature environments. By directing the engineering teams, the President ensures that every product meets the rigorous quality standards associated with the brand. This role involves collaborating with research and development departments to bring new, leak-tight technologies to market. Dalles Pohl drives the company's technical leadership by fostering partnerships with key industrial clients to solve complex fluid handling problems. The President monitors the performance of product lines to ensure alignment with the company's mission of safety and efficiency. Through the oversight of technical support operations, Pohl guarantees that customers receive the expertise required to implement these systems effectively, thereby maintaining the company's status as a trusted partner in industrial manufacturing.

    James Uhl - President

    James Uhl, the President at Swagelok, directs the strategic expansion of service offerings and aftermarket support capabilities. Uhl oversees the integration of digital tools and diagnostic services that enhance the value proposition for industrial fluid system users. By focusing on the lifecycle management of components, the President ensures that customers achieve maximum uptime and operational safety. This leadership role involves managing the service network to provide rapid response and technical assistance across diverse geographic markets. James Uhl drives the company's service-oriented growth by identifying new opportunities to support clients in demanding applications. The President collaborates with the operations team to ensure that service delivery remains consistent with the company's high standards for quality. Through the development of comprehensive support programs, Uhl strengthens customer loyalty and reinforces the company's position as a provider of complete fluid system solutions rather than just individual components.

    Andrew Curtiss - President

    Andrew Curtiss, the President at Swagelok, manages the strategic alignment of global sales channels and distribution partnerships. Curtiss oversees the development of sales strategies that penetrate new industrial markets while maintaining strong relationships with existing clients. By directing the sales force, the President ensures that the company's value proposition is clearly communicated to decision-makers in sectors requiring high-performance fluid systems. This role involves analyzing market data to optimize pricing strategies and inventory management across the distribution network. Andrew Curtiss drives revenue growth by identifying emerging trends in industrial automation and energy production. The President collaborates with the marketing and product teams to ensure that sales efforts are supported by effective promotional materials and technical documentation. Through the management of these critical sales functions, Curtiss ensures that the company's products are readily available to meet the needs of customers worldwide, supporting the overall mission of reliability and safety.
    Andrew Curtiss

    Jim Crozier - President

    Jim Crozier, the President at Swagelok, directs the strategic oversight of manufacturing quality control and process improvement initiatives. Crozier oversees the implementation of advanced testing protocols that ensure every component meets the company's stringent leak-tight standards. By managing the quality assurance teams, the President ensures that production processes remain compliant with international safety regulations and industry certifications. This leadership role involves identifying opportunities for process automation to reduce variability and increase throughput. Jim Crozier drives the company's commitment to excellence by fostering a culture of continuous improvement and rigorous inspection. The President collaborates with the engineering department to address quality challenges and implement design enhancements that improve product performance. Through the oversight of these critical quality functions, Crozier protects the brand's reputation for reliability, ensuring that the company continues to deliver safe and efficient fluid system solutions to its global customer base.

    James Trolinger - President & Owner

    James Trolinger, the President & Owner at Swagelok, provides the long-term vision and strategic guidance necessary for the company's sustained success. Trolinger oversees the preservation of the company's core values, including the commitment to quality and customer-focused innovation. By directing the high-level strategic planning, the President & Owner ensures that the organization remains agile in the face of changing industrial landscapes. This role involves maintaining the financial health of the company while investing in future growth opportunities and technological advancements. James Trolinger drives the company's mission by upholding the standards established since the inception of the revolutionary tube fitting. The President & Owner collaborates with the executive team to ensure that all business activities align with the long-term interests of the company and its stakeholders. Through this leadership, Trolinger secures the firm's legacy as a worldwide leader in industrial fluid system manufacturing and support.

    Sarah Turner - Chief Human Resources Officer, Sotera Health

    Sarah Turner, the Chief Human Resources Officer, Sotera Health at Swagelok, architects the talent acquisition and organizational development strategies necessary for maintaining a high-performance workforce. Turner oversees the implementation of human capital initiatives that align with the company's focus on precision manufacturing and industrial excellence. By fostering a culture of continuous learning and professional growth, the Chief Human Resources Officer, Sotera Health ensures that the organization attracts and retains top-tier engineering and operational talent. This leadership role involves designing comprehensive compensation and benefits structures that support employee engagement and long-term retention. Sarah Turner drives organizational health by promoting diversity, equity, and inclusion across all departments. The Chief Human Resources Officer, Sotera Health collaborates with executive leadership to align workforce capabilities with the evolving demands of the fluid system industry. Through these efforts, Turner strengthens the internal foundation required to sustain the company's reputation for quality and innovation in global markets.

    Hannah Delis - Chief Human Resources Officer

    Hannah Delis, the Chief Human Resources Officer at Swagelok, directs the strategic management of human capital to support the company's manufacturing objectives. Delis oversees the development of internal training programs that emphasize safety, technical proficiency, and operational efficiency. By aligning workforce planning with the company's production goals, the Chief Human Resources Officer ensures that the organization possesses the necessary expertise to meet complex customer requirements. This role involves managing performance evaluation systems that reward excellence and drive continuous improvement across all functional areas. Hannah Delis drives employee engagement initiatives that reinforce the company's commitment to quality and reliability. The Chief Human Resources Officer collaborates with other executives to cultivate a workplace environment that encourages innovation and collaborative problem-solving. Through the implementation of robust HR policies, Delis supports the long-term stability of the workforce, ensuring that the company remains a leader in the industrial fluid system sector.
    Hannah Delis

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    Frequently Asked Questions Regarding Swagelok Top Executives and Leadership Team

    Who leads Swagelok?
    Swagelok is led by Jill Whelan (President & Chief Executive Officer), along with executives such as John Plakio (Chief Operating Officer) and Sebastien Day (President).
    Who is part of Swagelok’s executive team?
    The executive team of Swagelok includes leaders such as Jill Whelan (President & Chief Executive Officer), John Plakio (Chief Operating Officer), Sebastien Day (President) and other senior executives.
    How many executives does Swagelok have?
    Swagelok has 10 executives leading key business areas.
    What roles are included in Swagelok’s leadership team?
    The leadership team of Swagelok includes roles such as President & Chief Executive Officer, Chief Operating Officer, President, President, President.