Harrell-Fish Executive and Leadership Team

October, 2026

Leadership Overview

Harrell-Fish has 4 executives leading key functions including corporate strategy, financial oversight, service operations, and mechanical contracting.

Committed to excellence in mechanical infrastructure, Harrell-Fish delivers comprehensive HVAC and plumbing solutions to healthcare, higher education, and government sectors across the region.

Leadership Roles at Harrell-Fish

  • Chief Financial Officer - Dave Conner
  • Chief Operating Officer - Stanley Klakulak
  • Chief Operating Officer, Service - Melissa Sechowski
  • President - Jeff Miller
  • Dave Conner - Chief Financial Officer

    Dave Conner, the Chief Financial Officer at Harrell-Fish, manages the fiscal health and long-term capital planning for the organization. Overseeing financial reporting, budgeting, and risk management, the Chief Financial Officer ensures that all mechanical contracting projects remain profitable while adhering to strict institutional compliance requirements. Conner directs the allocation of financial resources to support the expansion of plumbing and HVAC service capabilities across diverse commercial markets. By analyzing market trends and cost structures, the Chief Financial Officer provides the data-driven insights necessary for sustainable growth. Dave Conner maintains strong relationships with banking partners and stakeholders to ensure liquidity for large-scale infrastructure investments. This leadership role involves rigorous monitoring of project margins and overhead expenses to maximize shareholder value. Through disciplined financial stewardship, Conner supports the company's mission to provide high-quality mechanical services while maintaining a robust balance sheet.
    Dave Conner

    Stanley Klakulak - Chief Operating Officer

    Stanley Klakulak, the Chief Operating Officer at Harrell-Fish, directs all core mechanical contracting operations and large-scale project execution. Overseeing the integration of complex HVAC and plumbing installations, the Chief Operating Officer ensures that every institutional project meets rigorous safety and performance standards. Klakulak manages the internal resource allocation required to support healthcare and higher education facilities throughout the Midwest. By optimizing field labor productivity and supply chain logistics, the Chief Operating Officer maintains high operational efficiency across all construction sites. Stanley Klakulak drives the strategic implementation of new mechanical technologies to enhance system longevity for government clients. This leadership role involves constant coordination with project managers to mitigate risks and accelerate project timelines. Through meticulous oversight of daily operations, Klakulak secures the company's reputation for technical precision and reliability in the competitive mechanical contracting industry.

    Melissa Sechowski - Chief Operating Officer, Service

    Melissa Sechowski, the Chief Operating Officer, Service at Harrell-Fish, leads the maintenance and repair division to ensure continuous operational uptime for critical institutional facilities. Overseeing a team of specialized technicians, the Chief Operating Officer, Service architects preventative maintenance programs for complex HVAC and plumbing systems in healthcare and higher education environments. Sechowski drives the expansion of service contracts by focusing on rapid response times and technical excellence. By implementing advanced diagnostic tools and digital tracking systems, the Chief Operating Officer, Service improves the efficiency of field service delivery across the regional market. Melissa Sechowski coordinates with facility managers to address urgent repair needs and long-term system upgrades. This leadership role involves balancing immediate service demands with the strategic goal of increasing recurring revenue through long-term maintenance agreements. Through proactive management of service operations, Sechowski ensures that clients receive consistent, high-quality support for their mechanical infrastructure.
    Melissa Sechowski

    Jeff Miller - President

    Jeff Miller, the President at Harrell-Fish, defines the overarching corporate strategy and market positioning for the mechanical contracting firm. Overseeing the alignment of all departments, the President ensures that the company remains a leader in providing HVAC and plumbing solutions to institutional clients. Miller drives the pursuit of new business opportunities in the government and healthcare sectors while fostering a culture of safety and technical innovation. By collaborating with the executive team, the President establishes long-term goals that prioritize sustainable growth and operational excellence. Jeff Miller represents the company in high-level industry partnerships and community initiatives to strengthen the brand's regional presence. This leadership role involves evaluating market shifts and adjusting business models to maintain a competitive edge in the construction industry. Through decisive leadership and a focus on client satisfaction, Miller guides the organization toward continued success and industry prominence.
    Jeff Miller

    Frequently Asked Questions Regarding Harrell-Fish Top Executives and Leadership Team

    Who leads Harrell-Fish?
    Harrell-Fish is led by Dave Conner (Chief Financial Officer), along with executives such as Stanley Klakulak (Chief Operating Officer) and Melissa Sechowski (Chief Operating Officer, Service).
    Who is part of Harrell-Fish’s executive team?
    The executive team of Harrell-Fish includes leaders such as Dave Conner (Chief Financial Officer), Stanley Klakulak (Chief Operating Officer), Melissa Sechowski (Chief Operating Officer, Service) and other senior executives.
    How many executives does Harrell-Fish have?
    Harrell-Fish has 4 executives leading key business areas.
    What roles are included in Harrell-Fish’s leadership team?
    The leadership team of Harrell-Fish includes roles such as Chief Financial Officer, Chief Operating Officer, Chief Operating Officer, Service, President.