
The Team
Sunstone Logistics Systems is led by a highly experienced team of professionals across logistics, industrial engineering, technology, and operations. With deep industry knowledge and a proven track record, we deliver intelligent, integrated solutions that enhance efficiency, visibility, and performance throughout the supply chain.
Executive Management Team

Mark Jaffe
Chief Executive Officer
Mark Jaffe is the CEO and founding director of Sunstone Logistics Systems. With a visionary approach to technology and logistics, he has led the company from inception to industry leadership. Mark brings decades of executive experience and a deep understanding of operational ecosystems, driving innovation, strategic growth, and long-term value creation.

Bradley Cline
Executive Director
Bradley Cline is the Executive Director of Sunstone Logistics Systems, providing strategic leadership across the company’s operations and growth initiatives. With a strong background in executive management and commercial development, he plays a key role in shaping long-term vision, building strategic partnerships, and driving sustainable business performance.

Wesley Phillips
Chief Operating Officer
Wesley Phillips is the Chief Operating Officer of Sunstone Logistics Systems. As a qualified industrial engineer, he brings a deep understanding of operational systems, process design, and execution. Wesley leads the day-to-day delivery of logistics solutions, driving efficiency, accuracy, and innovation across warehousing, fleet, and in-field operations.

Elizabeth Sephton
General Manager
Elizabeth Sephton is an experienced industrial engineer and General Manager at Sunstone Logistics Systems. With an MBA and a strong background in operations and strategic planning, she leads cross-functional teams to drive performance, implement scalable systems, and ensure alignment between commercial goals and execution.
