Day & Zimmermann Executive and Leadership Team

Harold Yoh, the Chief Executive Officer at Day & Zimmermann, directs the overarching corporate strategy and long-term vision for the organization. Overseeing the entire enterprise, the Chief Executive Officer ensures alignment across the construction, engineering, and defense sectors. This leadership role involves managing complex government contracts and fostering relationships with major corporate partners. By prioritizing operational excellence, Harold Yoh drives the company toward sustainable growth and market leadership. The Chief Executive Officer maintains a focus on innovation, ensuring the firm remains competitive within the global defense and infrastructure landscape. Through rigorous oversight of business units, the Chief Executive Officer secures the stability of the family-owned enterprise. Ultimately, Yoh shapes the strategic direction that defines the firm's impact on critical national projects and international engineering initiatives.

Joseph Ritzel, the Senior VP, Finance & Chief Financial Officer at Day & Zimmermann, directs the fiscal planning and capital allocation strategies for the organization. Overseeing the financial health of the firm, the Senior VP, Finance & Chief Financial Officer ensures that construction and defense projects remain profitable and compliant with regulatory standards. This leadership role involves managing complex budgeting processes and overseeing the financial reporting for the entire enterprise. By optimizing cash flow, Joseph Ritzel drives the company's ability to invest in new engineering technologies and market expansion. The Senior VP, Finance & Chief Financial Officer collaborates with the Board to maintain fiscal discipline across all business units. Through rigorous financial oversight, the Senior VP, Finance & Chief Financial Officer secures the economic stability required for long-term growth. Ultimately, Ritzel manages the financial resources that fuel the firm's diverse service offerings.

Kathleen King, the Senior VP, Finance & Chief Financial Officer at Day & Zimmermann, architects the risk management and internal audit protocols for the company. Overseeing the financial compliance of the staffing and defense divisions, the Senior VP, Finance & Chief Financial Officer ensures that all operations adhere to strict government contracting requirements. This leadership role involves analyzing cost structures to improve margins on large-scale infrastructure projects. By implementing advanced financial controls, Kathleen King drives the efficiency of the firm's procurement and supply chain operations. The Senior VP, Finance & Chief Financial Officer manages the treasury functions to support the company's global footprint. Through strategic financial planning, the Senior VP, Finance & Chief Financial Officer secures the capital necessary for ongoing innovation in engineering services. Ultimately, King maintains the financial integrity that supports the firm's reputation for reliability and excellence.

T. Jason Dunaway, the President, D&Z Maintenance & Construction at Day & Zimmermann, directs the operational execution of large-scale industrial maintenance and construction projects. Overseeing the field teams, the President, D&Z Maintenance & Construction ensures that all engineering tasks meet safety and quality benchmarks. This leadership role involves managing complex site logistics and coordinating with corporate partners to deliver infrastructure solutions. By streamlining project workflows, T. Jason Dunaway drives the productivity of the maintenance division across various industrial sectors. The President, D&Z Maintenance & Construction manages the deployment of specialized labor to meet the demands of critical energy and manufacturing facilities. Through proactive site management, the President, D&Z Maintenance & Construction secures the successful completion of high-stakes projects. Ultimately, Dunaway oversees the operational delivery that defines the firm's presence in the industrial construction market.

Reg Pelham, the President at Day & Zimmermann, directs the strategic growth of the defense and government services portfolio. Overseeing the execution of critical national security contracts, the President ensures that the firm provides high-quality engineering and technical support to government agencies. This leadership role involves managing the integration of specialized defense solutions into the broader corporate strategy. By fostering partnerships with public sector entities, Reg Pelham drives the expansion of the firm's footprint in the defense industry. The President manages the operational teams responsible for delivering complex projects on time and within budget. Through strategic oversight of the defense division, the President secures the firm's position as a trusted partner for government infrastructure needs. Ultimately, Pelham leads the initiatives that support the company's commitment to national security and public sector excellence.

John Comito, the President, Yoh at Day & Zimmermann, directs the staffing and talent solutions division. Overseeing the recruitment of specialized technical and professional personnel, the President, Yoh ensures that the firm provides high-value staffing services to leading corporations. This leadership role involves managing the expansion of the staffing business into new industry verticals and geographic regions. By leveraging data-driven recruitment strategies, John Comito drives the growth of the talent solutions portfolio. The President, Yoh manages the operational teams that connect skilled professionals with complex engineering and technology roles. Through strategic market analysis, the President, Yoh secures the firm's competitive advantage in the staffing industry. Ultimately, Comito leads the division that provides the essential human capital required for the firm's clients to succeed in a rapidly evolving global economy.

John McCormick, the President, Maintenance & Construction at Day & Zimmermann, architects the safety and quality standards for the firm's construction operations. Overseeing the technical training of field personnel, the President, Maintenance & Construction ensures that all maintenance activities comply with rigorous industry regulations. This leadership role involves managing the procurement of specialized equipment and materials for large-scale industrial projects. By optimizing the maintenance lifecycle, John McCormick drives the operational efficiency of the firm's construction services. The President, Maintenance & Construction manages the relationships with key industrial clients to ensure long-term service agreements. Through strategic planning, the President, Maintenance & Construction secures the firm's ability to handle complex infrastructure challenges across diverse environments. Ultimately, McCormick leads the operational teams that maintain the firm's reputation for excellence in industrial construction and maintenance services.

Matthew Rivera, the Chief Marketing Officer at Day & Zimmermann, architects the brand identity and market positioning for the organization. Overseeing global communications, the Chief Marketing Officer ensures that the firm's expertise in construction and defense reaches key stakeholders effectively. This leadership role involves developing targeted campaigns that highlight the company's century-long history of engineering excellence. By analyzing market trends, Matthew Rivera drives engagement with government agencies and corporate clients alike. The Chief Marketing Officer manages the digital presence and public relations strategy to bolster the firm's reputation in competitive sectors. Through strategic outreach, the Chief Marketing Officer expands the reach of the brand across North American and international markets. Ultimately, Rivera secures the firm's standing as a premier provider of specialized staffing and technical solutions.

Daniel Ross, the Senior Vice President, Human Resources, and Chief Human Resources Officer at Day & Zimmermann, directs the talent acquisition and workforce development strategies. Overseeing the human capital lifecycle, the Senior Vice President, Human Resources, and Chief Human Resources Officer ensures that the organization attracts top-tier engineering and defense professionals. This leadership role involves implementing comprehensive training programs and fostering a culture of safety and inclusion. By optimizing recruitment pipelines, Daniel Ross drives the company's ability to staff large-scale construction projects efficiently. The Senior Vice President, Human Resources, and Chief Human Resources Officer manages employee relations and organizational development to support the firm's diverse operational needs. Through strategic workforce planning, the Senior Vice President, Human Resources, and Chief Human Resources Officer maintains the high standards required for government and corporate contracts. Ultimately, Ross secures the human talent necessary for long-term success.

Vishi Viswanathan, the Senior Vice President and Chief Information Officer at Day & Zimmermann, architects the digital infrastructure and cybersecurity frameworks for the enterprise. Overseeing the technology roadmap, the Senior Vice President and Chief Information Officer ensures that all engineering and staffing platforms remain secure and scalable. This leadership role involves integrating advanced data analytics to improve operational efficiency across construction sites and corporate offices. By modernizing legacy systems, Vishi Viswanathan drives the digital transformation necessary for competing in the modern defense industry. The Senior Vice President and Chief Information Officer manages the IT department to support seamless collaboration between global business units. Through robust technology governance, the Senior Vice President and Chief Information Officer protects sensitive government data and proprietary engineering designs. Ultimately, Viswanathan secures the technological foundation that enables the firm to deliver complex solutions to clients worldwide.