/ Who are we? / Headquarters Zagreb, HR

In the heart of Zagreb.

Concept Render · Currently Under Renovation
001 / The building Currently under renovation

Inside the former Brodarski Institut.

MARBLE's headquarters spans 3,500 square metres within the former Brodarski Institut complex, a historic naval research facility being transformed into Croatia's first dedicated maritime robotics centre.

The building is currently undergoing extensive renovation. When complete, it will house four specialised laboratories, a 30-metre circular basin for experimental validation in controlled indoor environments, a mobile field-deployment unit, open collaborative workspaces, and a remote command and control centre for our three Adriatic pilot sites.

Concept render of MARBLE's headquarters complex in Zagreb after renovation, aerial view at golden hour with the historic domed hall, experimental pool building, and glass laboratoriesConcept Render · Currently Under Renovation
002 / Inside HQ

A lab for every phase. All under one roof.

Each laboratory supports a specific phase of maritime technology development, from rapid prototyping and system integration to aerial and underwater testing and digital-twin validation.

MARBLE hardware prototyping lab with engineers assembling robotics at benches, a netted UAV test bay, and glass-walled officesConcept Render · Hardware Prototyping Room
01Hardware Prototyping

Where concepts become hardware.

Equipped with CNC machines, 3D printers, soldering stations, and full mechanical and electronic assembly instrumentation. Built to move designs from sketch to working prototype in days, not months.

What it enables
  • Custom maritime hardware fabrication
  • Electronics assembly and PCB integration
  • Mechanical iteration on sensor housings and vehicle components
  • Rapid turnaround between design and physical test
MARBLE UAV test range, a net-enclosed hall with UAVs flying above a test pool, ground robots, and an engineer at a control stationConcept Render · UAV Test Range
02UAV Test Range

Net-enclosed UAV testing environment.

Hardware-in-the-loop experiments simulate real-world maritime scenarios (takeoffs and landings on moving platforms, obstacle navigation, multi-UAV coordination) in a controlled, safety-first environment.

What it enables
  • UAV autonomy testing under simulated maritime conditions
  • Multi-vehicle coordination trials (aerial + surface + underwater stack)
  • Landing-on-moving-platform research
  • Iterative tuning before open-water deployment
MARBLE underwater basin beneath the historic dome, with surface and underwater vehicles on the circular pool and the Marine Robotics Lab behind glassConcept Render · Underwater Basin
03Underwater Basin

30-metre circular test basin for underwater and surface vehicles.

Fully instrumented with a vision-based localisation system and acoustic localisation systems. The pool gives MARBLE a fully controlled environment to validate autonomous underwater behaviour before vehicles are committed to open-water trials.

What it enables
  • Sensor calibration and integration validation
  • Aerial and underwater positioning research in controlled conditions
  • Navigation testing
  • Docking manoeuvre validation
MARBLE mission control room, glass-walled offices over two levels with engineers at workstations and a stepped breakout seating areaConcept Render · Mission Control Room
04Mission Control Room

The operational command centre.

A high-tech operational hub that connects engineers in Zagreb directly to MARBLE's three Adriatic pilot sites. Real-time data monitoring, remote equipment control, and comprehensive mission simulations all run from here, using digital-twin technology to mirror operations as they unfold at sea.

What it enables
  • Real-time monitoring of pilot site operations
  • Remote control of deployed equipment
  • Digital-twin simulation of missions at sea
  • Coordinated experiments across multiple sites simultaneously
003 / Field deployment

Field research, anywhere.

A fully self-contained control room designed for experiments in remote coastal and island environments, with the same instrumentation MARBLE uses at HQ.

The mobile lab brings the workshop to the field. Designed for deployment beyond our pilot sites, it enables experiments and technical work at any location with suitable access. The unit provides electronics workstations, 3D-printing capabilities, equipment storage and communications infrastructure, allowing teams to conduct and support field experiments directly on site.

MARBLE mobile laboratory deployed at a remote coastal site at dusk with solar panel, satellite dish, and an engineer at the workstationConcept Render · Field Deployment

Renewable power

Solar panels and battery storage for off-grid operation, with diesel backup for extended deployments.

Networked comms

Wi-Fi, 4G/5G, and satellite uplinks. Continuous data flow back to MARBLE HQ.

Full prototyping

Electronics workstations, 3D printing, and equipment storage on board.

Designed for transport

Easily transported and rapidly deployed wherever it is needed.

005 / Location

Find us.

Froudeova ulica 13
Zagreb, Croatia

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006 / Get in touch

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