Who We Are
GateMarine is an engineering-driven offshore and subsea solutions provider established in 2006 by professionals with more than 25 years of combined experience in the maritime, subsea, and telecommunications industries. Today, GateMarine is recognized as Türkiye’s leading company in subsea cable engineering, delivering reliable and field-proven solutions for complex offshore and subsea cable projects.
By combining strong internal engineering expertise with extensive offshore operational experience, GateMarine provides full technical control across engineering, project execution, and lifecycle support. This integrated approach ensures that subsea cable engineering solutions are developed in direct alignment with real offshore conditions, regulatory requirements, and long-term operational performance.
What We Do
GateMarine delivers turnkey solutions for subsea cable projects, covering the entire project lifecycle. Core activities include subsea cable route engineering, marine and subsea survey, subsea cable installation and seabed burial, as well as subsea cable maintenance, repair, and protection services for existing cable systems.
Engineering and offshore operations are supported through close coordination with SonarSea, a group company responsible for the design, development, and manufacturing of subsea cable equipment and systems. This integrated group structure ensures that subsea cable engineering, equipment capabilities, and offshore execution are fully aligned throughout each project phase.
All subsea and offshore activities are carried out with a strong commitment to environmental responsibility, focusing on minimizing seabed impact, optimizing installation methodologies, and applying engineering-driven solutions to reduce environmental footprint across all subsea cable operations.
Why GateMarine
GateMarine’s key strength lies in its ability to combine internal engineering capabilities with hands-on offshore experience, enabling the delivery of project-specific subsea cable engineering solutions rather than standardized approaches. Each project is developed based on seabed conditions, environmental constraints, and operational requirements.
As Türkiye’s leader in subsea cable engineering, GateMarine delivers flexible, sustainable, and long-lasting subsea cable solutions through its integrated engineering model and collaboration with SonarSea. This approach ensures uncompromising standards in quality, safety, reliability, and environmental awareness, positioning GateMarine as a trusted partner for technically demanding offshore and subsea cable projects.
Policies
GateMarine adopts quality as a fundamental corporate principle in subsea cable engineering and offshore operations. All projects are planned and executed in accordance with client requirements, technical specifications, and applicable international standards.
Engineering activities are carried out based on project-specific needs, ensuring technical consistency between design, execution, and offshore operations. GateMarine continuously reviews its processes to improve performance and maintains traceability and control throughout the entire project lifecycle.
GateMarine prioritizes the health and safety of employees, contractors, and all stakeholders involved in marine and subsea operations. Offshore and subsea activities are planned based on risk assessments, and safe working practices are implemented at all times.
Personnel competency, role suitability, and safety awareness form the foundation of operations. GateMarine supports training, awareness, and continuous improvement initiatives to sustain a strong safety culture.
GateMarine considers the minimization of environmental impact as an integral part of subsea cable project engineering. Seabed conditions, environmental factors, and sensitive areas are evaluated during the project planning stage.
Operations are conducted with a focus on controlling environmental risks, minimizing seabed disturbance, and complying with applicable environmental regulations. GateMarine is committed to implementing environmentally responsible and sustainable offshore practices.
GateMarine strives for technical excellence in subsea cable engineering. Engineering solutions are developed by combining theoretical knowledge, field experience, and project-specific requirements.
Each project is evaluated based on seabed conditions, environmental constraints, and operational needs rather than standardized approaches. Through its internal engineering expertise, GateMarine ensures technical integrity from the design phase through offshore execution.
GateMarine recognizes sustainability and long-term value creation as core corporate objectives. Efficient use of resources and the delivery of long-lasting solutions are prioritized across engineering, operations, and project management processes.
The sustainability approach balances environmental responsibility, operational efficiency, and technical reliability. GateMarine remains committed to maintaining this responsibility in future projects.
GateMarine is committed to protecting the confidentiality and integrity of technical, commercial, and operational project data. Information security is managed on an authorization-based access principle, ensuring that data is accessible only to authorized personnel.
Digital and physical data protection measures are implemented in line with legal requirements and contractual obligations. GateMarine recognizes data security as a critical component of project success.
GateMarine conducts all activities in accordance with ethical principles, transparency, and legal compliance. Integrity, fair competition, and professional conduct are fundamental in all business relationships.
Compliance with laws, contractual obligations, and industry regulations is considered a core corporate responsibility. GateMarine is committed to promoting ethical business practices across all stakeholder relationships.
