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Comprehensive Marine
Solutions

End-to-end capabilities for complex maritime operations across the Indian Ocean and East Africa.

Subsea Construction

Seanergy delivers comprehensive underwater projects across the Indian Ocean, leveraging certified diving teams and high-performance ROVs capable of operating at depths of up to 200 meters. We execute the most complex operations with precision and safety, fully compliant with international standards.

From pipeline installation to structural repairs, our experts ensure reliable and long-lasting results.

  • Pipeline installation and maintenance
  • Structural repairs and marine foundations
  • Underwater welding and cutting
  • Hull, subsea infrastructure inspections, and ROV interventions (up to 200 m)
  • Supply and installation of cathodic protection systems
Commercial diver in helmet during subsea construction operation

Dredging & Reclamation

Seanergy performs dredging and reclamation operations to ensure navigability of waterways, expand ports and channels, and create new land using specialized equipment. We handle maintenance and development projects across the region, combining efficiency with environmental responsibility.

With decades of expertise, every operation is conducted with rigor and accountability.

  • Seabed and port maintenance dredging
  • Land reclamation and fill operations
  • Port and channel widening
  • Coastal protection works
  • Environmental dredging
Dredging vessel with crane and material barge offshore

Marine Civil Works

Seanergy builds and maintains critical port infrastructure across the Indian Ocean. From quay walls to breakwaters, our marine civil teams deliver durable structures engineered for the harshest maritime conditions.

Each project is managed end-to-end with strict quality control and adherence to international construction standards.

  • Port infrastructure construction
  • Quay wall & dock construction
  • Breakwater installation
  • Jetty & pontoon assembly
  • Coastal defence structures
Marine civil works

Hydrographic Surveys

Precision survey data is the foundation of every marine project. Seanergy provides state-of-the-art hydrographic survey services using multibeam and single-beam systems for accurate seabed mapping.

Our survey teams deliver reliable data for dredging planning, construction verification and environmental monitoring.

  • Multibeam bathymetric surveys
  • Single-beam echo sounding
  • Seabed mapping & classification
  • Pre/post-dredge analysis
  • As-built & compliance surveys
Hydrographic surveys

EPCM Contracting

Full Engineering, Procurement, Construction and Management services for turnkey marine projects. Seanergy manages every phase from feasibility studies through to final handover.

Our integrated EPCM approach ensures cost efficiency, quality control and timely delivery across complex multi-disciplinary projects.

  • Feasibility studies & engineering design
  • Procurement & supply chain management
  • Construction management
  • Quality assurance & commissioning
  • Project handover & documentation
Vintage commercial diving helmet on coiled umbilical hoses

Maritime Logistics

Seanergy provides comprehensive maritime logistics solutions including vessel chartering, heavy lift operations and transport coordination across the Indian Ocean and East Africa.

Our logistics network ensures equipment, materials and personnel reach even the most remote project sites on schedule.

  • Vessel chartering & management
  • Heavy lift operations
  • Transport coordination
  • Equipment mobilization
  • Supply chain & port logistics
Mobile crane loading marine equipment with buoys on rocky coast
Our Fleet

Equipment Built for
Extreme Conditions

A fleet of specialized vessels and machinery, maintained to the highest standards and ready for deployment across the Indian Ocean.

Propelled Jack Up Barge Survey & Support

Propelled Jack Up Barge

Self-propelled jack-up platform for geotechnical surveys, CPT testing, drilling operations and dive support in shallow waters.

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Propelled Jack Up Barge

Survey & Support

Dimensions

Length (HT/PP)19.10m / 17.50m
Width8m
Draught (no piles)1.40m
Draught (with piles)2.81m

Capacity

Fuel3,000 L
Water2,000 L
Deck cargo20 tons
Crew2 + 8 staff
Seawork Vessel Marine Work

Seawork Vessel

Multi-role marine work and survey vessel equipped with a 2-ton crane, ideal for coastal operations and equipment deployment.

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Seawork Vessel

Marine Work

Dimensions

Length overall11.85m
Breadth4.30m
Hollow1.35m
Draft (loaded)1.1m

Performance

Power350 CV diesel
Speed15 knots
Crane2 tons

Weight

Lightship7.5 T
Max load13 T
Fuel700 L
Dive Support Vessel Diving

Dive Support Vessel — Defender

Dedicated dive support platform with surface-supplied diving systems, KMB27 helmets and USBL positioning for IMCA-standard operations.

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Dive Support Vessel

Diving

Diving Systems

Sets20 (Hookah)
Depth rated120m
HelmetsKMB27 + 1080p cam
PositioningUSBL acoustic
StandardIMCA compliant

Fleet

Vessels2× Defender
Transfer2× Nouvelle Aurore
Pax capacity10 passengers
ROV System Subsea

ROV System

Remotely operated vehicle for deep underwater inspections, measurements, bathymetry and dive assistance, rated to 300m depth.

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ROV System

Subsea

Performance

Operating depth300 msw (1000 psw)
VideoHD camera

Capabilities

InspectionsVisual + measurements
SensorsTemp, position, bathy
Dive assistanceYes
Bathymetry Equipment Survey

Bathymetry Suite

Complete hydrographic survey package with multibeam sonar, single-beam echo sounder, RTK GNSS and inertial navigation for precision seabed mapping.

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Bathymetry Suite

Survey

Sonar Systems

MultibeamSeabat 8125
MB rated depth1,500m
MB nominal70m
Single beamValeport Surveyor

Navigation

GNSSGPS RTK GS 10 Leica
IMUOctans 1000
CelerimeterValeport
ROV mountableYes
Hyperbaric Chamber Safety

Hyperbaric Chambers

Dual recompression chambers for emergency treatment and saturation decompression, fully equipped with oxygen delivery and communication systems.

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Hyperbaric Chambers

Safety

Specifications

Units2× chambers
Capacity4–6 persons
Diameter1,600 mm
Weight800 kg each

Equipment

Oxygen masksIncluded
Comms systemBuilt-in
LightingInternal
Emergency BIBSYes
Our Process

How We Work

A proven methodology refined over decades of complex marine operations, ensuring every project is delivered safely, on time and within budget.

1

Site Assessment & Feasibility

Every project begins with a thorough site survey and feasibility study. Our engineers assess environmental conditions, seabed characteristics and logistical constraints to define the optimal approach before any equipment is mobilised.

2

Engineering & Planning

Our multidisciplinary team develops detailed engineering plans, method statements and risk assessments. Every operation is modelled and reviewed to ensure compliance with international maritime standards and local regulations.

3

Mobilisation & Logistics

We coordinate the deployment of vessels, equipment and specialist personnel to site. Our logistics network across the Indian Ocean ensures rapid mobilisation, even to the most remote locations in Madagascar, Mozambique or the Comoros.

4

Execution & Quality Control

Operations are carried out under strict HSE protocols with real-time monitoring. Dedicated project managers ensure milestones are met while our QA teams verify every deliverable against the agreed specifications.

5

Handover & Reporting

Upon completion, we deliver comprehensive as-built documentation, survey reports and compliance certificates. Our post-project support includes warranty management and maintenance recommendations for long-term asset integrity.