People
Sentinel Global Supply is a sourcing partner focused on building reliable, transparent supply chains for agricultural commodities. We work directly at origin with farms, cooperatives, and exporters to verify quality, improve traceability, and reduce risk before shipment. Our approach combines on-site oversight with structured supplier assurance, ensuring alignment between suppliers and buyers across every stage of the supply chain. We don’t just source commodities — we verify them at origin.
John L. Tremblay, Founder
John founded Sentinel Global Supply with a focus on building reliable, transparent supply chains at origin. With a background as a Quality Engineer, he has experience in supplier quality, risk management, and process oversight within regulated and high-reliability environments. His approach is centered on verifying suppliers directly at source—combining on-site evaluation with structured risk management to improve traceability, consistency, and overall supply chain performance. Through Sentinel, John is focused on connecting origin supply with buyers while reducing risk before shipment.
Miguelina M., Director of Sourcing — Caribbean
Miguelina is based in the Dominican Republic and supports Sentinel Global Supply’s sourcing operations at origin. Working directly at the Port of Santo Domingo, she plays a key role in coordinating logistics, monitoring shipments, and supporting supplier interactions at the port level. Her position provides on-the-ground visibility into export operations, helping ensure smooth coordination between suppliers, logistics providers, and shipment processes. Miguelina is fluent in both Spanish and English, enabling effective communication across local and international partners.