About us

Seaworthy Partner

De Naval was established in 1995 in Rijeka, Croatia and is running continuously ever since, providing tech and staff support for numerous domestic and foreign partners. We are experienced in all phases of a ship project cycle, from a concept development and basic design to the delivery of production drawings and documentation.

We are expert with wide range of vessels types. Most of our recent projects include offshore support vessels aqaculture and fish vessels. With our well qualified professionals, we ensure right managment and technical solutions for the project.

Since December 2015, we are part of Adriatic Engieneering Solution, AES group, a group of few companies which have pooled their resources working closely together in marine, offshore and process industry projects.


We can offer full package and deliver a complete project or provide specific services you need. Our capabilities cover but are not limited to:

  • Naval Architectural design

    Naval Architectural design

    Main particulars estimates, lines design, general arrangements, weight and capacity estimates, 3D visualizations. Calculations: hydrostatic, stability, motions, ship resistance and powering prediction, CFD optimization…

  • Structural design

    Structural design

    Basic class design: structural analysis by class rules, analytical, as well finite element structural analyses, class drawings, 3D hull modeling, workshop and lofting documentation.

  • Machinery and equipment arrangements and outfittings

    Machinery and equipment arrangements and outfittings

  • Yard assessment and onsite support

    Yard assessment and onsite support

    We can ensure our client to get best possible service from a local shipyard of choice and provide follow up of a new building or a refit onsite.

  • Marine operations

    Marine operations

    Docking and undocking calculations, sea lunching and lifting operations, mooring analyses… you name it. Our engineers can deal with those specific actions.

  • Project management and consultancy

    Project management and consultancy

    Ask our experts for guidance and advice, we are finding right people and establishing competent team for your needs.

  • Aquaculture Workboats

    Aquaculture Workboats

  • Purse Seiner 15m

    Purse Seiner 15m

  • Wellboat 3500m³

    Wellboat 3500m³

  • MachoCat 25

    MachoCat 25

  • Wellboat 3500m³

    Wellboat 3500m³

  • Macho 40

    Macho 40

  • DIVE/ROV Support Vessel

    DIVE/ROV Support Vessel

  • Macho 36

    Macho 36

  • Macho 25

    Macho 25

  • Wellboat 3000m³

    Wellboat 3000m³

  • Planing Boat 6m

    Planing Boat 6m

  • OSV 70

    OSV 70

  • Semidisplacement Boat 8m

    Semidisplacement Boat 8m


From the year 2006, De Naval most closely cooperates with More Maritime AS, located in Kristiansund, Norway, providing support on development of their fishery and aquaculture vessels design.

In years of our practice we have cooperated with many partners locally and internationally:

  • More Maritime AS
  • 3. maj
  • Marin Teknikk
  • Viktor Lenac

News & Careers

SSI's Certified Training - SSI' ShipConstructor  software

SSI's Certified Training

By the end of September nine of our staff completed SSI's Certified Training, obtaining Professional and Specialist level of SSI's ShipConstructor2018.

SSI Press Release

Atlantic Navigator - A Conversion

Atlantic Navigator

As a part of AES, we started a cooperation with Viktor Lenac on conversion of the vessel Atlantic Navigator.

A new project

We just started new project, MACHO CAT 25, an aquaculture support vessel


Please send your CV for open application to:
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De Naval d.o.o.

Krimeja 5, 51000 Rijeka
Office Address:
Kumičićeva 46, 51000 Rijeka
Tel: +385 51 400 044
Fax: +385 51 218 772
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Board Member
Davor Valerjev
+385 98 326 990
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Board Member
General Manager
Marin Valerjev
+385 98 356 494
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Board Member
Technical Manager
Andrej Golac
+385 98 510 164
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Company info

De Naval, limited liability company for ship design, engineering and consulting

Registred at Commercial Court, Rijeka (Croatia)
MBS: 040063221
OIB: 36845256976
Share Capital: 40.000,00 HRK
PBZ, HR1223400091117013213