About Us
Who We Are
Mahmut Harem and Umut Serin founded TSR Marine, merging vast experience in shipyard management, maritime navigation, flag registration, ship classification, and operations.
About us – Founding Expertise
With over 15 years in the industry, Mahmut’s expertise in managing shipyard projects and ship classification roles has shaped our ship repair, maintenance, and refurbishment approach.
Umut Serin, with 15+ years in maritime, excels in navigation, engine roles, and ship classification. His practical experience enriches his navigational expertise, offering diverse insights into maintenance and repair
Mahmut Harem’s expertise in shipyard management and ship classification, combined with Umut Serin’s maritime navigation and operational experience, establish TSR Marine’s foundation. Our goal is to lead the maritime industry with customer-focused solutions for ship repair, maintenance, and refurbishment.
Evolution of TSR Marine
Founded on the expertise of engineers with 15+ years of experience, we enhanced our capabilities through international engineering, Project Management, assuming key roles in quality control Management and marine inspections.
We contributed to the sector by assuming important positions in renowned classification societies like Turkish Lloyd and INSB.
Afterward, we specialized in ship repair, maintenance, and refurbishment, providing technical inspection services and port repairs to leading companies worldwide
To broaden our influence, we assumed ship flag and class registration duties as Turkey’s representative for key societies like International Register of Shipping (INTLREG). By recruiting talented young engineers, we’ve built a skilled workforce.
In 2025,
We took an exciting new step in the maritime sector by establishing Global Ship Certification (GSC), an organization authorized for the registration of St. Kitts & Nevis and Sierra Leone flags, CE Certification, and Flag State inspections. With this initiative, we aim to combine our expertise in ship repair, maintenance, classification, vessel flag registration, and CE certification to provide our clients with comprehensive and reliable solutions.
At TSR Marine, we aspire to lead and excel in the maritime sector, offering reliable, innovative, and high-quality services to our clients. We remain committed to strengthening our presence in the industry and being your solution partner in the maritime domain.
To meet our team and learn more about each member, please visit our Meet Our Team page.
Why Choose Us
At TSR Marine, we understand that selecting the right partner for your maritime needs is crucial. Here are several compelling reasons why you should choose us:
Expertise and Experience: With over 15 years of experience in the maritime industry, our team brings a wealth of knowledge and expertise to every project. From shipyard management to maritime navigation, flag registration to ship classification, our diverse backgrounds enable us to provide comprehensive solutions tailored to your specific requirements.
Quality and Reliability:
We are committed to delivering high-quality services and solutions that meet and exceed industry standards. Our commitment to excellence guarantees meticulous care for your vessels, enhancing performance and longevity.
Customer-Focused Approach:
At TSR Marine, customer satisfaction is our top priority. We take the time to understand your needs and preferences, providing personalized solutions that align with your goals and objectives. Our responsive team is always available to address any concerns and provide ongoing support throughout the project lifecycle.
Comprehensive Services:
Offering ship repair, maintenance, technical inspection, and flag registration services, we provide to diverse maritime needs. Whether routine maintenance or complex refurbishment, our experienced team handles projects of any scale.
Global Reach:
With a strong presence in the maritime sector and partnerships with top classification societies, we possess a global network to serve clients worldwide. Whether local or international, trust TSR Marine for dependable solutions wherever you are.
Innovation and Adaptability:
We stay at the forefront of industry trends and technology advancements to deliver innovative solutions that drive efficiency and performance. Our flexible approach enables us to customize services to changing market demands and regulatory needs, keeping your vessels compliant and competitive.
Proven Track Record:
Over the years, we have built a solid reputation for excellence and integrity in the maritime industry. Our track record of successful projects and satisfied clients speaks volumes about our commitment to quality and professionalism.
When you choose TSR Marine, you are choosing a trusted partner dedicated to delivering exceptional results and exceeding your expectations. Contact us today to learn more about how we can support your maritime needs.
At TSR Marine, our goal is to be the top choice for maritime solutions. We offer exceptional services tailored to client needs. Dedicated to excellence in ship repair, maintenance, and refurbishment, we exceed global expectations with expertise, experience, and quality commitment. With a focus on customers and innovation, we build lasting industry relationships
Our goal at TSR Marine is to lead the maritime sector with innovative solutions and expertise, setting excellence standards in ship repair, maintenance, and refurbishment. We aim to be the preferred partner for shipowners seeking reliable, high-quality services. Embracing technology and industry trends, we continuously improve to meet client needs, positioning TSR Marine as a global leader.
At TSR Marine, our values serve as the foundation of everything we do. They guide our actions, decisions, and interactions with clients, partners, and stakeholders:
Integrity:
We uphold the highest ethical standards in all our dealings, fostering trust, transparency, and accountability.
Excellence:
We are committed to delivering superior quality and craftsmanship in every project, striving for perfection and continuous improvement.
Customer Focus:
We prioritize customer satisfaction and aim to exceed expectations by understanding and addressing the unique needs of each client.
Innovation:
We embrace innovation and creativity, seeking out new ideas and technologies to drive efficiency, productivity, and value for our clients.
Collaboration:
We value teamwork and collaboration, recognizing that our collective efforts yield the best results for our clients and the company.
Safety:
We prioritize the safety and well-being of our employees, clients, and the environment, adhering to strict safety standards and practices in all our operations.
Sustainability:
We are committed to environmental responsibility and sustainability, minimizing our impact on the planet and promoting eco-friendly practices throughout our operations.
English