With over 20 years of experience, Director of Sales Callum Marshall is dedicated to delivering client-focused solutions that drive long-term value. He takes the time to understand each client’s unique needs, ensuring every engagement is tailored, strategic, and results-driven.

Callum is known for building strong, lasting relationships grounded in trust, responsiveness, and accountability. By leading high-performing teams, he brings together the right expertise to support clients efficiently and effectively. His data-driven approach enables informed decision-making, improved outcomes, and consistent delivery on commitments.

Clients who work with Callum gain a trusted partner committed to supporting their growth and long-term success.

With over 40 years of experience in financial management, Shauna Hall has been a foundational part of OCI Group since its inception in 1991. As Manager of Finance, she oversees Accounts Payable, Accounts Receivable, and financial reporting with precision and dedication. Her deep institutional knowledge and meticulous attention to detail have played a key role in ensuring the company’s financial integrity and operational success for more than three decades.

Luana is Head of our Marketing Department at OCI Group, driving the development and execution of strategic brand and marketing initiatives across the organization.  With over 25 years of leadership in the food, technology, and telecommunications industries, she brings a proven track record of both B2B and B2C expertise in collaboration with some of North America’s leading creative and media agencies. At OCI Group, Luana is passionate about leading her team to create high-impact marketing experiences that strengthen connections with our business partners, prospective clients and loyal customers who rely on our innovative engineering solutions.