Marine Systems

Sedni is a leader company specialized in the design of dedicated marine electronics and software for monitoring and control. We have contributed to the development of maritime ship systems for over 25 years using state of the art-technology, our experience and innovation. Our safe, reliable and friendly solutions are designed to meet the challenging demands of shipyard and shipowners, covering most ship types and applications. A range of engineering services, simulation tools, technical support and training courses are provided world-wide through our network of agents and partners. Our main products are:

  • DIAMAR marine automation system. Distributed Integrated Alarm Monitoring and Control system, including PMS, cargo & ballast monitoring and control.
  • NEREIDA loading calculator. Software for loading & stability calculations.
  • NEREIDA CONTAINERS management software of containers. Application to manage container carriers.
  • ECONOMIZER ship performance analysis. Software that enables the operator to manage the vessel in the most economical way.
Calidad Sedni

DIAMAR® Marine Automation System

The DIAMAR marine automation system of Sedni is a distributed integrated alarm monitoring and control system (IAMCS), which was designed to meet the most demanding requirements of shipyards and shipowners. DIAMAR is built from modular hardware components to provide an optimal solution to all types of vessels, under the highest standards of safety and reliability.


NEREIDA Loading Calculator

Maximizing load while minimizing stress and assuring ship stability at all times is an advantage from the point of view of safety and economical performance. NEREIDA is an application developed by Sedni, that allows the user to calculate an optimal load and ballast distribution for every type of vessel, making the work of the captain and deck officers easier and faster. Developed in a graphical and intuitive environment, NEREIDA calculates the stability and longitudinal strength of the ship.

Noticias Nereida


NEREIDA CONTAINERS is a software application mainly oriented to shipping companies, brokers and container terminals which allows the management of one or several container carriers from the offices.



ECONOMIZER is a tool designed to work both on board and in offices, which allows control of the main factors influencing the consumption of our fleet. ECONOMIZER allows the planning of travel costs, dock entry for maintenance and comparison of different ships to see which ones are most suitable.

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