Greg Toornman

Greg Toornman is an award-winning senior-level global supply chain executive known for leading large-scale transformation across complex, multinational organizations. He is a strategic advisor at Nexus Supply Chain & 4flow. With more than 25 years of progressive leadership experience, he has driven strategic optimization, operational excellence, and cross-functional integration across the automotive, heavy truck, agricultural, and high-tech electronics industries.

Throughout his career, Toornman has built and executed global strategies spanning enterprise S&OP, logistics transformation, global purchasing, lean logistics, materials and inventory optimization, aftermarket distribution, supplier quality and development, and new product introduction (NPI). He is recognized for aligning supply chain operations with long-term corporate vision while delivering measurable improvements in performance, cost, service, and resilience.

A transformational leader and enterprise change agent, Toornman specializes in developing and implementing functional strategies that support both short- and long-term business objectives. He has led complex, multi-region ERP, TMS, and DRP implementations, driving digital enablement and leveraging AI and emerging technologies to modernize supply chain capabilities.

With extensive international experience, Toornman has negotiated global sourcing agreements, led cross-border integrations and restructurings, and built strategic partnerships worldwide. His leadership style combines visionary thinking with disciplined execution, enabling organizations to navigate complexity while fostering innovation and collaboration across global teams.

Committed to leadership development, Toornman is also a dedicated mentor and coach, focused on unlocking high-potential talent and building sustainable organizational capability. His entrepreneurial spirit, global perspective, and expertise in enterprise transformation position him as a trusted executive leader in today’s rapidly evolving supply chain landscape.