Up River Marine is a trusted maritime surveying and consultancy company based in Rosario, Argentina — one of the most strategic ports on the Paraná River. With deep roots in South America’s grain export hub, we deliver top-tier inspection and consulting services to shipowners, charterers, shippers, and maritime agencies worldwide.
Our team specializes in bunker quantity surveys, cargo supervision, audits, and draft surveys across global ports — with a sharp focus on transparency, speed, and regulatory compliance. As we expand internationally, we remain committed to operational excellence, customer trust, and safety at sea.
At Up River Marine, our mission is to deliver world-class maritime inspection and consulting services built on accuracy, transparency, and trust.
We support shipowners, charterers, and agencies with precise surveys, regulatory audits, and on-site supervision—ensuring safety, compliance, and confidence in every port. From Rosario to global terminals, we navigate challenges with professionalism and purpose.
Up River Marine envisions a maritime industry where every operation—whether at port or at sea—is guided by trust, transparency, and technical precision.
Our vision is to become the most respected and reliable maritime surveying partner, not just in South America, but across global ports. We aim to lead the way in accurate reporting, fast turnaround, and regulatory compliance—helping our clients operate confidently in an increasingly complex and competitive shipping environment.
Founder & Director
In the shipping business, time is money-and trust is everything. l’m Martín Ruiz Díaz, Founder and Port Captain of UP RIVER Marine, with over 20 years of experience in the maritime industry, both onboard vessels and now ashore. l help international shipping companies operate smoothly in LATAM ports. We coordinate port operations, supervise cargo, provide technical inspections, and support vessels in complying with local regulations, including
SENASA. With a deep understanding of port dynamics and a hands-on approach, we make sure your operations are handled with precision and reliability.
You can also mention that we work with a specialized team for Draft Surveys and Bunker Surveys, as well as a dedicated team in Zona Común for Bunker Quantity Surveys.
Providing trusted maritime surveying and consulting services across Argentina, Uruguay, and global ports. Specializing in bunker surveys, cargo inspections, and regulatory audits with precision and integrity.
Head Office – Argentina:
US Office:
