International Marine And Dredging Consultants

What International Marine And Dredging Consultants does

International Marine And Dredging Consultants (IMDC), founded in 1982 and headquartered in Antwerp, Belgium, is a specialized civil and environmental engineering consultancy operating as a wholly-owned subsidiary of Tractebel (part of the ENGIE group). The firm delivers nine interconnected service lines — Marine/Dredging & Port Engineering, Monitoring, Hydro-Environmental Services, Digital Water Solutions, Water Computing, Blue Energy, Coasts & Estuaries, Water Resources Management, and Innovation — to government agencies, port authorities, offshore wind developers, and transmission grid operators across Europe, Africa, the Americas, and Asia. Notable engagements include the 487 MW SeaMade offshore wind farm, the metocean campaign for Elia's Princess Elisabeth Energy Island, the 908 km Magdalena River navigability restoration in Colombia, and a cloud-hosted Flood Early Warning System for Met Eireann (Ireland).

IMDC's technical core is advanced numerical modeling and simulation, centered on the TELEMAC/MASCARET suite and OpenFOAM CFD setups, layered with proprietary digital tooling (Synapps platform, Meetnet data platform, EcoPAM) and metocean monitoring instruments (ADCP, Aquadopp, LISST-AOBS, SiltProfiler). The company has published peer-reviewed research, including a two-way coupled Lagrangian near-field and TELEMAC-3D model in Nature Communications for deep-sea mining sediment plume dispersion. GTM is enterprise field sales and consortium-led bids; delivery is project-based professional services with a growing subscription/recurring digital revenue stream. Marketing relies on industry conferences (IAHR, TELEMAC/MASCARET User Conference) and professional networks rather than broad digital campaigns. The firm is privately held with 51-100 employees, operates from Antwerp, and reports into Tractebel, leveraging the parent's global engineering resources while retaining domain specialization in water and marine engineering.

Name

International Marine And Dredging Consultants

Legal name

International Marine And Dredging Consultants

Website

https://imdc.be

Company type

Private

Founded year

1982

Operating status

Operating

Headcount range

51–100 employees

Short description

IMDC is a Belgian engineering consultancy and Tractebel subsidiary founded in 1982, providing specialized water, marine, dredging, and offshore energy services to governments, port authorities, and energy developers across 13+ countries via nine product lines and a proprietary Synapps digital platform.

Ownership category

akta.pro rank

Product category

Water Engineering Services

NAICS

Environmental Consulting Services (54162), Port and Harbor Operations (488310), Navigational Services to Shipping (48833), Geophysical Surveying and Mapping Services (541360)

SIC

Services-Commercial Physical & Biological Research (8731), Water Transportation (4400), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Nautical Safety, Navigation Aids & Hydrographic Services (TLAHAFAE)

akta.pro secondary industries

Sustainability & Environmental Compliance Digital Solutions (Emissions, MRV, Waste, Noise) (TLAHAOAN), Subsea & Nearshore Civil Works (Trenching, Rock Placement, Mattressing) (IMAFAJAI)

Keywords

• Marine engineering consultancy
• Dredging and port engineering
• Hydro-environmental services
• Offshore wind consulting
• Water resources management

Headquarters

HQ city

Antwerpen

HQ country

Belgium

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales

Revenue model

1. Engineering Consulting Services: Professional consulting services for water-related engineering projects including feasibility studies, design, environmental impact assessments, and technical assistance. Revenue is generated through project-based contracts with government agencies, port authorities, and private developers.
2. Digital Water Solutions: Custom software applications and digital products for water resource management, flood early warning systems, and environmental monitoring. Delivered through the Synapps platform or complete custom software solutions.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

IMDC provides specialized water and marine engineering consulting services spanning dredging, port design, hydrodynamic modeling, offshore wind, coastal and estuarine management, environmental impact assessment, and digital water solutions. The firm combines numerical modeling (TELEMAC/MASCARET, OpenFOAM), metocean monitoring, and its proprietary Synapps digital platform to deliver feasibility studies, design, environmental assessment, and technical assistance to governments, port authorities, and offshore energy developers.

Product overview

IMDC offers a portfolio of nine interconnected water engineering consultancy services spanning the full project lifecycle. The core offerings include Marine/Dredging & Port Engineering, Monitoring, Hydro-Environmental Services, Digital Water Solutions (powered by the Synapps platform), Water Computing, Blue Energy, Coasts & Estuaries, Water Resources Management, and Innovation. The services are complementary: Digital Water Solutions and Water Computing provide the analytical and numerical modelling capabilities that support the engineering, coastal, and environmental services. The Synapps platform serves as the digital backbone for data collection and visualization across Monitoring and other service lines.

Differentiator

Problem solved

Functional benefit

Brands

• Synapps: Digital water solutions platform for data visualization, calculation and prediction of water processes
• EcoPAM
• Meetnet

Products and services

• Monitoring Advanced metocean and geotechnical monitoring services delivering reliable data for water management decisions, infrastructure design, and environmental protection, including bathymetry, ADCP current profiling, Aquadopp seabed measurements, LISST-AOBS and SiltProfiler turbidity profiling, and water sampling, supported by the Synapps/Meetnet data platform.
• Marine, Dredging & Port Engineering Design and delivery of climate-resilient marine and port infrastructure including masterplanning, dredging works, navigation studies, and offshore energy terminals. Multidisciplinary team combines marine, civil, and energy expertise with advanced digital and physical modelling.
• Hydro-Environmental Services

Quantifiable outcome

• SeaMade offshore wind farm generates 487 MW, enough power for 485,000 Belgian households
• +2 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature5 records

Partnerships

Eight partnerships are on record, tiered minor and core.

• TREASURE Project ConsortiumminorStrategic or Co-development Partner · 1 January 2023Interreg North Sea project consortium including partners from Belgium, The Netherlands, Germany, France and Denmark focused on avoiding plastic waste flux towards the sea. IMDC deploying MARC plastic catcher prototype.
• ReefyminorStrategic or Co-development Partner · 1 January 2022Collaboration with Reefy in development of Reefy Nature Based Solution for artificial reef structures. IMDC provides in-kind expertise and numerical CFD modeling of the Reef Enhancement Breakwater (REB).
• Nelen & SchuurmanscoreImplementation/ SI/ Consulting Partner · 1 January 2021Partnership for the Flood Early Warning System project in Ireland. IMDC and Tractebel collaborated with Nelen & Schuurmans to configure the Delft Flood Early Warning System (FEWS) integrator system using detailed hydrological models.
• Coastal Vision ConsortiumcoreStrategic or Co-development Partner · 1 January 2021IMDC leads a consortium (with ORG, Arcadis, Common Ground, An Luyten, Connect, Econopolis, LDR, BAAC and Tractebel) awarded framework contract for Flemish government's Coastal Vision complex project on sustainable coastal management.
• University of Porto / INEGIminorStrategic or Co-development Partner · 1 January 2020R&D partners for WEC4Ports project developing hybrid Wave Energy Converters for port breakwaters. IMDC leads the consortium with University of Porto and Institute of Science and Innovation in Mechanical and Industrial Engineering (INEGI).
• Eire Composites Teo (ECT)minorStrategic or Co-development Partner · 1 January 2020R&D partner for WEC4Ports project focused on hybrid wave energy converter development and reliability assessment.
• Tractebel, IDEV-ic, BET-GPcoreStrategic or Co-development Partner · 1 January 2016Consortium for Senegal River navigation channel design including IMDC, Tractebel, IDEV-ic of Senegal and BET-GP of Mauritania. IMDC led the consortium for detailed preliminary design and tender document preparation.
• TractebelcoreStrategic or Co-development PartnerIMDC is a subsidiary company of Tractebel, a global engineering consultancy. The company endorses Tractebel's ethics, environmental, and health & safety policies. Tractebel provides corporate backing and resources while IMDC maintains specialized focus on water and marine engineering.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Deltares: Dutch applied research institute for water, subsurface, and infrastructure. Closely comparable to IMDC on coastal engineering, flood risk, and numerical modeling expertise; differs as a non-profit knowledge organization but competes for similar talent and project funding.
• Witteveen+Bos: Dutch engineering consultancy specializing in water, coastal, and maritime infrastructure. Directly comparable to IMDC in dredging, port engineering, hydrodynamic modeling, and nature-based coastal solutions, with similar project-based professional services model and Benelux anchor.
• HR Wallingford: UK-based civil engineering and environmental hydraulics research consultancy. Closely comparable to IMDC's Water Computing and Coasts & Estuaries lines, with overlapping expertise in TELEMAC modeling, metocean, coastal resilience, and applied maritime research.
• Royal HaskoningDHV: Dutch-headquartered global engineering consultancy with deep water, maritime, and coastal practices. Highly comparable to IMDC in offering port design, hydrodynamic modeling, flood resilience, and water management consulting to government and enterprise clients across Europe and emerging markets.
• Fugro: Netherlands-based geo-data and offshore site characterization specialist. Comparable to IMDC on metocean monitoring, seabed surveys, and offshore wind site characterization, though Fugro is more capital-intensive with its own survey vessels and geotechnical equipment.

Broad incumbents

• Arcadis: Global design and engineering consultancy with a significant Water and Maritime practice. Overlaps with IMDC across coastal resilience, port design, and environmental services, but operates at much larger scale and broader sector coverage.
• Sweco: Nordic-headquartered European engineering consultancy with water, environment, and infrastructure practices. Overlaps with IMDC on water management, coastal engineering, and environmental impact assessment, particularly across Northern Europe.
• Antea Group: International engineering and environmental consulting firm with significant water and infrastructure practices. Comparable to IMDC across environmental consulting, water resources, and coastal/maritime engineering, with broader geographic and sector footprint.
• Artelia: France-based multidisciplinary engineering consultancy with water, energy, and infrastructure practices. Comparable to IMDC on hydraulic modeling, port and maritime engineering, and environmental services, with deeper EPC-adjacent delivery capabilities.

Emerging players

• Svašek Hydraulics: Smaller Dutch coastal and hydraulic engineering consultancy. Directly comparable niche to IMDC's Water Computing and Coasts & Estuaries practices, operating with similar numerical modeling expertise (including TELEMAC) but at smaller scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/imdc/?originalSubdomain=nl

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about International Marine And Dredging Consultants