Consor Engineers Appoints Patrick Cassity as President and CEO, Marking a New Chapter in the Firm’s Growth and Leadership Evolution
Consor Engineers (“Consor”), a leading North American engineering and advisory firm recognized for its transformative work across infrastructure resiliency, reliability, sustainability, and security, has announced a major leadership transition with the appointment of Patrick Cassity as its new President and Chief Executive Officer (CEO). The move represents a key milestone in Consor’s strategic leadership succession plan and positions the company for its next phase of growth and innovation.
Cassity succeeds Dr. Hisham Mahmoud, who has served as both Executive Chairman of the Board and Interim CEO. Dr. Mahmoud will continue in his ongoing role as Executive Chairman, where he will support Cassity and the leadership team in advancing the firm’s long-term strategic vision. The leadership transition underscores Consor’s continued commitment to strengthening its market position and building on strong momentum developed under Dr. Mahmoud’s stewardship.
Consor’s growth and evolution have been supported by New Mountain Capital, a leading growth-oriented investment firm with nearly $60 billion in assets under management. With New Mountain’s backing and Dr. Mahmoud’s leadership, the company has expanded its capabilities and cemented its position as a differentiated partner in the infrastructure modernization landscape.
A Strategic Leadership Transition for the Next Phase of Growth
The selection of Patrick Cassity is the outcome of a carefully planned succession designed to ensure continuity and forward-focused leadership. According to Dr. Mahmoud, Cassity’s appointment aligns with the firm’s steadfast commitment to collaboration, innovation, and a partner-led operating model that empowers teams across the organization.
“Patrick Cassity is a growth-oriented leader who believes deeply in the importance of culture, partnership, and empowerment, which are vital to the continued success of our partner-led operating model,” said Dr. Mahmoud. “I am very proud of what we have accomplished together at Consor and look forward to partnering with and supporting Patrick and the leadership team to advance our strategic vision.”
Under Dr. Mahmoud’s leadership, Consor has scaled its technical and advisory capabilities and strengthened its market presence across the U.S. and Canada. His leadership also contributed to expanding the company’s work in critical areas such as infrastructure resiliency, advanced engineering, and sustainability-focused solutions. This platform now serves as the foundation for Cassity to propel the company into its next era.
Patrick Cassity: A Proven Leader in Infrastructure Engineering
Patrick Cassity brings more than 35 years of industry experience, spanning leadership roles in complex, global engineering organizations and specialized infrastructure firms. His extensive background includes positions that required managing multidisciplinary teams, scaling operations, and delivering mission-critical infrastructure to public and private clients.
Cassity’s prior experience includes:
- Executive Vice President of Global Infrastructure at Parsons Corporation, where he oversaw major infrastructure programs worldwide.
- Leader of Parsons’ Global Roads and Highways Division, guiding one of the company’s largest and most strategically important business units.
- President of Patrick Engineering, where he led business transformation and strengthened operational performance.
Cassity holds both Bachelor of Science and Master of Science degrees in Civil Engineering, and he is licensed as a Professional Engineer (PE) and Structural Engineer (SE)—credentials that reflect his deep technical grounding and engineering expertise.
Reflecting on his new role, Cassity said:
“Consor is an impressive organization with significant technical depth and a truly differentiated culture. I am honored to join Consor and contribute to its continued growth journey. I look forward to working with our employees and partners to strengthen our capabilities, expand client relationships, and continue investing in innovative solutions that improve critical infrastructure.”
New Mountain Capital Expresses Confidence in the Transition
Consor’s primary financial sponsor, New Mountain Capital, emphasized its strong support for the leadership evolution and shared confidence in Cassity’s ability to guide the company into its next stage of growth.
“We are very proud of playing a part in Consor’s impressive growth journey, which is underpinned by a clear strategy and the strong operating model Hisham has shaped in partnership with the leadership team,” said Lars Johansson and Joe Walker, Managing Directors at New Mountain Capital. “Patrick is a distinguished leader with extensive experience scaling infrastructure businesses, and he is well suited to guide Consor into its next phase of growth.”
New Mountain’s continued engagement underscores the firm’s long-term view of Consor as a critical player in the modern infrastructure ecosystem—particularly as public-sector spending, climate adaptation challenges, and technology-driven modernization reshape infrastructure needs across North America.
A Firm Positioned at the Center of Infrastructure Modernization
Consor Engineers has built a reputation as a trusted partner for governments, agencies, utilities, and private clients navigating the complexities of infrastructure modernization. The company’s expertise spans a range of critical domains, including:
- Transportation engineering, including highways, bridges, transit systems, tunnels, and aviation.
- Water infrastructure, including wastewater systems, stormwater resilience, and water treatment infrastructure.
- Advisory services, incorporating asset management, program management, and long-term infrastructure planning.
- Sustainability solutions, emphasizing climate resilience, green engineering, and environmental impact mitigation.
- Security and reliability, ensuring that critical infrastructure systems maintain operational integrity under increasing environmental and operational pressures.
Consor’s ability to integrate engineering excellence with advisory insight has helped position the company as a leader in both traditional and next-generation infrastructure solutions. The organization’s partner-led operating model fosters a culture of collaboration, technical rigor, and client-focused innovation—values that Cassity has been selected to champion.
A Leadership Vision Grounded in People, Culture, and Innovation
As Cassity steps into his new role, Consor is poised to build on its strong foundation and pursue strategic initiatives that expand its capabilities, geographic footprint, and technological integration. Cassity emphasized the importance of sustaining Consor’s unique culture—one defined by empowerment, collaboration, and a deep commitment to client success.
“Culture, technical excellence, and partnerships are at the heart of what makes Consor special,” Cassity said. “As we move into this next chapter, my focus will be on supporting our teams, investing in innovation, and strengthening our relationships with clients who rely on us to deliver safe, resilient, and forward-thinking infrastructure.”
With Cassity as CEO and Dr. Mahmoud continuing as Executive Chairman, Consor benefits from a leadership structure that combines continuity with fresh perspective. The firm is entering a period of considerable opportunity, driven by federal and regional investment in infrastructure, climate-resilient design, digital engineering tools, and sustainability-centered solutions.
As Consor continues to expand its presence and capabilities across North America, the appointment of Patrick Cassity signals a confident step toward accelerated growth, deeper client engagement, and enhanced impact across the infrastructure sector.
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