Thornton Tomasetti Executive and Leadership Team

Peter DiMaggio, the Co-Chief Executive Officer at Thornton Tomasetti, directs the firm's overarching strategic vision and engineering design operations. Focusing on large-scale structural projects, the Co-Chief Executive Officer manages complex engineering challenges across North American and international markets. DiMaggio architects high-performance design solutions while ensuring alignment with the firm's long-term growth objectives. By collaborating with the board and other executive leaders, the Co-Chief Executive Officer maintains rigorous standards for project delivery and technical excellence. Peter DiMaggio drives the integration of advanced analytical tools into daily engineering workflows to enhance structural integrity and efficiency. This leadership role involves overseeing the firm's diverse portfolio of architectural and construction projects, ensuring that every design meets stringent safety and performance criteria. Through consistent focus on innovation, the Co-Chief Executive Officer secures the firm's position as a global leader in structural engineering and forensic investigation services.

Michael Squarzini, the Co-Chief Executive Officer at Thornton Tomasetti, oversees the firm's operational expansion and business development initiatives. Concentrating on the diversification of engineering services, the Co-Chief Executive Officer manages client relationships and market penetration strategies across global regions. Squarzini drives the implementation of sustainable design practices, ensuring that the firm remains at the forefront of modern construction trends. By coordinating with internal practice leaders, the Co-Chief Executive Officer optimizes resource allocation and project management protocols to maximize operational efficiency. Michael Squarzini directly influences the firm's competitive standing by fostering a culture of technical rigor and client-focused service. This leadership role requires constant evaluation of market demands and the alignment of engineering capabilities with evolving industry standards. Through strategic oversight of business operations, the Co-Chief Executive Officer ensures that the firm delivers high-value engineering solutions that address the complex needs of clients on projects of every size.

Rimma Zaleznik, the Chief Financial Officer at Thornton Tomasetti, directs the firm's financial strategy, fiscal planning, and capital allocation processes. Overseeing the financial health of the organization, the Chief Financial Officer manages budgeting, reporting, and risk assessment for all global operations. Zaleznik architects robust financial frameworks that support the firm's engineering design and investigation services. By monitoring economic trends and market fluctuations, the Chief Financial Officer ensures the firm maintains a strong balance sheet to fund future growth and innovation. Rimma Zaleznik collaborates with the executive team to evaluate the financial viability of new business opportunities and large-scale projects. This leadership role involves maintaining compliance with international financial regulations and optimizing internal controls to protect the firm's assets. Through disciplined financial management, the Chief Financial Officer provides the stability required for the firm to continue delivering high-quality engineering solutions to clients worldwide while achieving sustainable long-term profitability.

Robert Otani, the Chief Technology Officer at Thornton Tomasetti, directs the development and deployment of advanced computational design tools and digital engineering platforms. Overseeing the firm's technological infrastructure, the Chief Technology Officer ensures that engineering teams utilize cutting-edge software for complex structural analysis and modeling. Otani architects digital workflows that streamline project delivery and enhance the precision of engineering investigations. By integrating emerging technologies into the firm's service offerings, the Chief Technology Officer drives innovation across all global project sites. Robert Otani collaborates with other executive leaders to align technological investments with the firm's broader strategic goals. This leadership role involves managing research and development initiatives that push the boundaries of structural design and performance. Through the implementation of sophisticated digital solutions, the Chief Technology Officer maintains the firm's reputation for technical excellence and provides the necessary tools for engineers to solve the most challenging structural problems in the industry.

Jim Dray, the Chief Information Officer at Thornton Tomasetti, directs the firm's information technology strategy, cybersecurity posture, and data management systems. Overseeing the digital backbone of the organization, the Chief Information Officer ensures that all global offices maintain secure and efficient access to critical engineering data and communication platforms. Dray architects scalable IT solutions that support the firm's complex design and analysis workflows. By implementing advanced network infrastructure, the Chief Information Officer facilitates seamless collaboration across international project teams. Jim Dray collaborates with other executive leaders to align technology initiatives with the firm's operational requirements and security standards. This leadership role involves managing the firm's digital transformation efforts and ensuring that information systems remain resilient against evolving cyber threats. Through the strategic management of technology resources, the Chief Information Officer enables the firm to maintain its competitive edge and deliver reliable engineering services to clients on a global scale.