HOK Executive and Leadership Team

Susan Williams, the Co-Chief Executive Officer At HOK, directs the overarching strategic vision for the global design and architecture firm. Williams manages the firm's expansion across North America, Europe, and Asia, ensuring alignment between regional operations and the core mission of sustainable development. By overseeing the integration of diverse design disciplines, the Co-Chief Executive Officer At HOK maintains the firm's competitive edge in sectors ranging from aviation to healthcare. Susan Williams collaborates with the board to drive long-term growth and operational excellence. This leadership role involves fostering a culture of innovation that prioritizes reducing embodied carbon in every project. Through rigorous oversight of global project portfolios, Williams secures the firm's reputation for delivering high-performance, complex built environments. Ultimately, the Co-Chief Executive Officer At HOK sustains the firm's legacy of excellence while navigating the evolving demands of the international architecture and engineering landscape.

Robert Pratzel, the Chief Financial Officer at HOK, manages the fiscal health and capital allocation strategies for the global architecture and engineering firm. Pratzel oversees the financial planning and analysis required to support operations across North America, Europe, and Asia. By directing the firm's budgetary processes, the Chief Financial Officer ensures that resources align with the strategic goals of sustainable design and project delivery. Robert Pratzel collaborates with executive leadership to assess the financial viability of large-scale developments in sectors like aviation and sports. This leadership role involves monitoring economic trends to mitigate risks and maximize profitability across the firm's diverse project portfolio. Through disciplined financial oversight, Pratzel supports the firm's commitment to reducing embodied carbon while maintaining operational efficiency. The Chief Financial Officer drives fiscal stability, enabling the firm to pursue ambitious, high-performance design projects globally. Ultimately, Pratzel secures the long-term economic foundation necessary for continued architectural innovation.

Terry Paterni, the Senior Vice President & Chief Financial Officer at HOK, executes the financial reporting and treasury management functions for the global architecture firm. Paterni oversees the firm's tax compliance and internal audit processes to ensure adherence to international standards. By directing the financial performance tracking for specific regional operations, the Senior Vice President & Chief Financial Officer provides critical insights into project profitability. Terry Paterni collaborates with the executive team to refine investment strategies for sustainable design initiatives. This leadership role involves managing cash flow and liquidity to support the firm's expansive project portfolio in sectors like government and healthcare. Through meticulous financial oversight, Paterni ensures that the firm maintains the resources required to reduce embodied carbon in its designs. The Senior Vice President & Chief Financial Officer drives fiscal accountability, supporting the firm's mission to create high-performance built environments. Ultimately, Paterni secures the financial integrity of the organization.

Misty Yanko, the Senior Vice President, Chief Financial Officer at HOK, manages the financial planning and corporate accounting functions for the global design and engineering firm. Yanko oversees the development of financial models that evaluate the long-term impact of sustainable design projects. By directing the firm's procurement and vendor management strategies, the Senior Vice President, Chief Financial Officer ensures cost-effective delivery of high-performance architecture. Misty Yanko collaborates with project directors to optimize resource allocation for large-scale mixed-use and commercial developments. This leadership role involves analyzing market trends to identify growth opportunities in the global architecture sector. Through rigorous financial analysis, Yanko supports the firm's commitment to reducing energy use intensity across its project portfolio. The Senior Vice President, Chief Financial Officer drives financial transparency and operational efficiency, enabling the firm to maintain its competitive position. Ultimately, Yanko secures the fiscal health required to sustain the firm's global design excellence.

Mei-Hwie Sie, the President at HOK, oversees the daily operational execution and strategic implementation for the global design and architecture firm. Sie directs the firm's multi-disciplinary teams, ensuring that architecture, interior design, and engineering services align with the company's high-performance standards. By managing the integration of sustainable design practices across all project sectors, the President maintains the firm's commitment to reducing embodied carbon. Mei-Hwie Sie collaborates with regional leaders to drive growth and operational excellence in North America, Europe, and Asia. This leadership role involves fostering a culture of design innovation and client-focused service. Through rigorous oversight of project delivery, Sie ensures that the firm meets the complex needs of clients in aviation, healthcare, and higher education. The President drives operational efficiency, enabling the firm to deliver sustainable, high-performance built environments globally. Ultimately, Sie secures the firm's reputation for excellence and innovation in the international architecture industry.

James Vandezande, the Chief Technology Officer at HOK, architects the digital transformation strategy for the firm's global design and engineering operations. Vandezande drives the implementation of advanced building information modeling and computational design tools to enhance project efficiency. Overseeing the integration of cutting-edge software across all international offices, the Chief Technology Officer ensures that design teams maintain peak productivity. James Vandezande collaborates with project leads to optimize workflows for complex sectors like science and technology. This leadership role involves evaluating emerging technologies to reduce energy use intensity in client projects. By streamlining digital infrastructure, Vandezande supports the firm's commitment to sustainable design and high-performance outcomes. The Chief Technology Officer maintains a focus on scalable solutions that empower architects and engineers to deliver innovative, carbon-conscious designs. Ultimately, Vandezande secures the firm's position at the forefront of technological advancement within the global architecture industry.

John Bartolomi, the Chief Information Officer at HOK, directs the enterprise-wide information systems and data security protocols for the global design firm. Bartolomi manages the firm's network infrastructure, ensuring seamless connectivity across offices in North America, Europe, and Asia. Overseeing the protection of sensitive project data and intellectual property, the Chief Information Officer maintains robust cybersecurity standards. John Bartolomi collaborates with technology teams to implement data-driven solutions that support the firm's sustainable design initiatives. This leadership role involves optimizing internal communication platforms to facilitate collaboration on complex, multi-disciplinary projects. By modernizing information systems, Bartolomi enhances the firm's ability to track energy use intensity and carbon metrics across its portfolio. The Chief Information Officer drives operational efficiency through reliable, secure, and scalable digital environments. Ultimately, Bartolomi secures the firm's information assets, enabling architects and engineers to focus on delivering high-performance, sustainable built environments for clients worldwide.

Lisa Green, the Chief Legal Officer at HOK, directs the legal strategy and risk management framework for the global architecture and engineering firm. Green oversees contract negotiations, intellectual property protection, and regulatory compliance across all international offices. By managing the firm's legal exposure in complex sectors like aviation and justice, the Chief Legal Officer ensures that project delivery remains secure and efficient. Lisa Green collaborates with executive leadership to navigate the legal requirements of sustainable design and carbon-reduction initiatives. This leadership role involves providing counsel on corporate governance and international business practices. Through proactive legal oversight, Green supports the firm's mission to create high-performance built environments while mitigating potential liabilities. The Chief Legal Officer drives ethical standards and legal integrity, enabling the firm to operate confidently in diverse global markets. Ultimately, Green secures the firm's legal interests, allowing architects and engineers to focus on delivering innovative, sustainable design solutions.