Muller Dordrecht

What Muller Dordrecht does

Muller Dordrecht, legally Muller Groep B.V., is a family-owned Dutch maritime services company founded in 1918 by Teun Muller. The company operates an integrated fleet of 11 seagoing and hybrid tugs (12T to 120T bollard pull) including the EN AVANT series built by Damen, Astilleros Armon, and Concordia Damen, plus two pushboats (ZODIAC and SIRIUS) and a diversified fleet of flat-top Ro/Ro barges ranging from 190T to 16,500T capacity, several of which double as load-test pontoons up to 5,500T. Core technology centres on ASD (Azimuth Stern Drive) propulsion, FiFi-class firefighting capability (up to FiFi-2, 3,600 m³/h), and dual-classification (inland and seagoing) barges enabling direct river-to-ocean transport without transshipment.

The company generates revenue through eight service lines: harbour towage at the ports of Dordrecht, Moerdijk, and Rotterdam; sea and coastal towage; offshore support including rig moves and anchor handling (anchored by EN AVANT 30); heavy transport and lifting using tugs and Ro/Ro barges; emergency response and salvage (24/7 across the North Sea and British Channel); crane ship load testing up to 5,500T; ice breaking under a long-term Rijkswaterstaat contract on the Markermeer and IJsselmeer; and transport engineering (AutoCAD, stability, and sea-fastening calculations). Customers span port operators, offshore wind and oil-and-gas contractors, infrastructure projects (notably the Fehmarnbelt Tunnel between Denmark and Germany), and Dutch waterway authorities.

Go-to-market is direct sales-led with dedicated account management and a one-stop-shop approach from offer to invoice. Distribution is entirely direct via the owned fleet, supplemented by a single external channel — Capnor-Maritime — representing the company in France (Jullouville office). The company is certified to ISO 14001 and the CO2-Performance Ladder 3.1, and its offshore tugs are vetted under OCIMF OVID and IMCA CMID, with 27% of self-propelled vessels already IMO Tier III compliant and active fleet renewal underway. Marketing is relationship-based, anchored by the 100-year brand, the company website, 24/7 phone availability, and selective sponsorship of Dutch maritime and cultural organisations.

Name

Muller Dordrecht

Legal name

Muller Groep B.V.

Website

https://muller-dordrecht.nl

Company type

Private

Founded year

1918

Operating status

Operating

Short description

Family-owned Dutch maritime services company (founded 1918) operating 11 tugs, 2 pushboats, and 11+ barges providing harbour towage, offshore support, heavy transport, salvage, load testing, and ice breaking across European waters to port operators, offshore energy contractors, and government agencies.

Ownership category

akta.pro rank

Product category

Maritime Towage and Heavy Transport Services

NAICS

Deep Sea Freight Transportation (483111)

SIC

Deep Sea Foreign Transportation Of Freight (4412)

akta.pro primary industry

Salvage Support Towage (Refloating/Wreck Removal Assistance) (TLAHAHAH)

Keywords

• Maritime towage services
• Harbour towage operations
• Offshore support services
• Heavy transport shipping
• Maritime salvage operations

Headquarters

HQ city

Dordrecht

HQ country

Netherlands

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Supply Chain, Technology or R&D, Marketing or Sales, Others

Revenue model

1. Harbour Towage Services: Towage services provided around the ports of Dordrecht, Moerdijk, and Rotterdam. Revenue is generated through service contracts and per-operation fees for vessel maneuvering, docking, and undocking assistance.
2. Offshore Operations: Offshore towage, rig moves, anchor handling, and integrated support services for offshore energy and infrastructure sectors across Europe. Includes involvement in major projects such as the Fehmarnbelt Tunnel and offshore wind installations.
3. Heavy Transport & Lifting: Maritime transport of oversized cargo, offshore structures, and civil engineering components using a fleet of tugs and flat-top Ro/Ro barges. Project-based revenue with full turnkey project management from offer to execution.
4. Sea Towage: Long-distance sea and coastal towage of seagoing vessels, offshore equipment, heavy-lift barges, floating cranes, and dry docks. 24/7 standby availability for immediate deployment.
5. Transport Engineering: Engineering services including AutoCAD drawings, trim, stability, and strength calculations, sea-fastening plans, and technical project support. Provided as part of heavy transport project delivery.
6. Load Testing Services: Load testing services for crane ships using mobilisable testlift barges up to 5,500T. Services provided at the client's port or at company locations.
7. Ice Breaking Contract: Long-term contract with Rijkswaterstaat (Dutch Ministry of Infrastructure and Water Management) to keep Markermeer and IJsselmeer ice-free during winter season.
8. Emergency Response & Salvage: 24/7 emergency response and maritime salvage services covering the North Sea and British Channel coastline. Always-ready tugs deployed on short notice.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Muller Dordrecht is a family-owned maritime services company delivering harbour towage, offshore support, sea towage, heavy transport and lifting, emergency response and salvage, load testing, ice breaking, and transport engineering services. It operates an owned fleet of 12 modern ASD tugs (12T to 120T bollard pull), 2 pushboats, and 11 heavy-duty flat-top Ro/Ro barges (190T to 16,500T capacity), serving Dutch ports and offshore energy and infrastructure projects across Europe.

Product overview

Muller Dordrecht is a family-owned maritime services company offering an integrated portfolio of vessels and specialized services for the towage, offshore, and heavy transport industries. The core product portfolio consists of: (1) A fleet of 12 modern tugs ranging from 12T to 120T bollard pull, including seagoing ASD tugs (EN AVANT 30, 26, 25, 20, 19, 10), harbour and seagoing tugs (EN AVANT 1, 9, 7, 4), and pushboats (ZODIAC, SIRIUS); (2) A diverse fleet of 11 heavy-duty flat-top Ro/Ro barges (seagoing and inland) ranging from 190T to 16,500T capacity, including dedicated loadtest barges; and (3) Eight maritime service offerings: Offshore, Sea Towage, Harbour Towage, Heavy Transport & Lifting, Emergency Response & Salvage, Load Testing, Ice Breaking, and Transport Engineering. The company operates primarily from Dordrecht, Moerdijk, and Rotterdam ports in the Netherlands, serving European offshore energy, infrastructure, and maritime transport sectors.

Differentiator

Problem solved

Functional benefit

Brands

• En Avant: Tugboat brand name used for the fleet of tugs (e.g., EN AVANT 30, EN AVANT 26, EN AVANT 25, etc.)

Products and services

• EN AVANT 30 Seagoing Tug Seagoing FiFi2 ASD Tug with 120 tons bollard pull, built at Astilleros Armon Vigo in Spain. Equipped for fire fighting (FIFI-2) at 3600 m3/h, designed for towing, anchor handling and rig moves in the offshore sector.
• EN AVANT 26 Seagoing Tug Seagoing FiFi1 ASD Tug with 90 tons bollard pull, built by Damen in Vietnam. Equipped for fire fighting (FIFI-1) at 2400 m3/h, designed for offshore operations and port assistance.
• EN AVANT 25 Seagoing Tug Seagoing FiFi1 ASD Tug with 90 tons bollard pull, built by Damen in Vietnam. Equipped for fire fighting (FIFI-1) at 2400 m3/h, with towing pins, tuggers, wooden deck and crashrails for demanding offshore operations.
• EN AVANT 20 Harbour & Seagoing Tug Harbour and seagoing ASD Tug with 70 tons bollard pull, built in Kiel, Germany. Gross tonnage of 448T and deadweight of approximately 255 tonnes, suited for port assistance and offshore wind, oil and gas industry work.
• EN AVANT 19 Harbour & Seagoing Tug Harbour and seagoing ASD Tug with 65 tons bollard pull, built at Damen in Vietnam. Designed for towing and support operations both offshore and in ports like Dordrecht and Moerdijk.
• EN AVANT 10 Harbour & Seagoing Tug Harbour and seagoing ASD Tug with 60 tons bollard pull, built at Astilleros Armon S.A. in Vigo, Spain. Gross tonnage of 358T with total power of 4,000 hp from two Caterpillar main engines.
• EN AVANT 1 Harbour & Seagoing Tug Harbour and seagoing Tug with 52 tons bollard pull, built at Damen Shipyards in Gorinchem. Gross tonnage of 186T with total power of 3,500 hp from two Caterpillar main engines.
• EN AVANT 9 Harbour & Seagoing Tug Harbour and seagoing Tug with 31 tons bollard pull, built at Damen Shipyards in Gorinchem. Gross tonnage of 134T with total power of 2,100 hp from two Caterpillar main engines.
• EN AVANT 7 Harbour & Seagoing Tug Harbour and seagoing Tug with 21 tons bollard pull, built at Damen Shipyards in Gorinchem. Gross tonnage of 108T with total power of 1,622 hp from two Mitsubishi main engines.
• EN AVANT 4 Harbour Tug Harbour Tug with 12 tons bollard pull, built at Wilton-Fijenoord in Schiedam. The oldest harbour tug in the fleet, still in active service in the ports of Rotterdam, Dordrecht and Moerdijk.
• ZODIAC Pushboat ASD Pushboat with 19.75 metres overall length, 9.90 metres beam, and maximum draught of 2.40 metres. Built at Concordia Damen in Werkendam, equipped with Z-Drive (Veth) propulsion of 2 x 725HP, designed for harbour and river work with 12 metres viewheight.
• SIRIUS Tug & Pushboat (Ice Breaking) Tug & Pushboat with 9.5 metres viewheight, 23.23 metres overall length, 6.35 metres beam, and 2.70 metres maximum draught. Built at shipyard Voorwaarts in W-Graftdijk, specifically equipped for ice breaking on rivers and canals.
• Flat-Top Ro/Ro Barges (Pontoon series) Heavy-duty flat-top Ro/Ro barges with dual classification (inland and seagoing) enabling direct loading at river-side locations and overseas transport without transshipment. The fleet includes Pontoon 10033-1 (100.23m x 33.36m x 7.6m, 16,500T), Pontoon 9127 (91.5m x 27.4m x 6.1m, 9,900T), Pontoon 6619 (66.04m x 19.1m x 4.25m, 3,500T, also as loadtest up to 5,500T 8-point), Pontoon 6615-1/6615-2 (66.04m x 15.5m x 4m, 2,500T each), Pontoon 6515 (65.28m x 15m x 3.3m, 1,800T), Pontoon 6022 (60m x 22m x 4m, 3,260T), Pontoon 5511 (55.04m x 11.4m x 3m, 1,200T, also as loadtest 1,300T 4-point), Pontoon 5019 (50m x 18.8m x 3m, 1,730T), and Pontoon 256-1/256-2 (25.03m/26.24m x 6.52m x 1.82m, 190T/200T, also as loadtest 292T/297T 4-point).
• Offshore Services Offshore towage, rig moves, anchor handling, and integrated offshore support services for offshore energy and infrastructure projects across Europe, including offshore wind construction and major projects such as the Fehmarnbelt Tunnel.
• Sea Towage Services Long-distance sea and coastal towage of seagoing vessels, offshore equipment, heavy-lift barges, floating cranes and dry docks, including project support for the renewables sector, with 24/7 standby availability.
• Harbour Towage Services Harbour towage services around the ports of Dordrecht, Moerdijk, and Rotterdam, including vessel maneuvering, docking and undocking of seagoing carriers.
• Heavy Transport & Lifting Services Maritime heavy transport and lifting solutions for oversized cargo, offshore structures, and civil engineering components, using the modern tug fleet and versatile flat-top Ro/Ro barges with full turnkey project management from offer to execution.
• Emergency Response & Salvage Services 24/7 emergency response and maritime salvage services covering the larger North Sea and British Channel coastline, with seagoing tugs available on short notice for vessels in distress.
• Load Testing Services Load testing services for crane ships using tailor-made testlift barges up to 5,500T with rigging equipment, mobilisable rapidly to any port or to company locations.
• Ice Breaking Services Professional ice breaking services keeping main inland waterways and ports open for the shipping industry, performed under a long-term contract with Rijkswaterstaat for Markermeer and IJsselmeer navigation routes.
• Transport Engineering Services High-quality transport engineering solutions including AutoCAD drawings, trim, stability and strength calculations, sea-fastening plans, and technical project support for heavy transport execution.

Quantifiable outcome

• 20,000+ projects completed over the company's history
• +3 more outcomes

Named customers4 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Capnor-MaritimecoreChannel Partner/ Reseller/ DistributorCapnor-Maritime, represented by Mr. Alexandre Masurel in Jullouville, France, serves as Muller Dordrecht's local representative for all tailor-made French maritime activities. This partnership leverages local expertise and maritime heritage to serve the French market.
• Concordia Damen (shipbuilder)coreTechnology or IntegrationConcordia Damen in Werkendam built the ZODIAC pushboat — a 19.75-metre Z-Drive pushboat certified for inland navigation, designed for harbour and river work, registered in Dordrecht.
• Damen Shipyards (Gorinchem)coreTechnology or IntegrationDamen Shipyards in Gorinchem built multiple tugs in the Muller fleet including EN AVANT 7 (21T BP), EN AVANT 9 (31T BP), and EN AVANT 1 (52T BP). Damen Shipyards Vietnam built EN AVANT 25, EN AVANT 26 (90T BP), and EN AVANT 19 (65T BP).
• Astilleros Armon S.A., Vigo, SpaincoreTechnology or IntegrationAstilleros Armon S.A. in Vigo, Spain built the EN AVANT 10 seagoing ASD tug (60T BP, 358 GT). The company also built EN AVANT 30 at Astilleros Armon Vigo (120T BP, FiFi2 tug).
• Rijkswaterstaat (Dutch Ministry of Infrastructure and Water Management)coreStrategic or Co-development PartnerRijkswaterstaat holds a long-term contract with Muller Dordrecht for ice breaking services on the Markermeer and IJsselmeer. Under this contract, Muller keeps key Dutch navigation routes ice-free throughout the winter season, supporting uninterrupted maritime traffic.
• Bureau VeritascoreOthersClassification society for multiple tugs in the Muller fleet including EN AVANT 4, EN AVANT 7, EN AVANT 9, EN AVANT 1, EN AVANT 10, and EN AVANT 20. Provides vessel classification and compliance certification under the Dutch flag.
• SI (Società Italiana) — Classification SocietyminorOthersSI (Società Italiana) provides classification certification for the ZODIAC pushboat and SIRIUS tug. Both vessels sail under the Dutch flag with Dordrecht as port of registry.

Scale indicators8 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Svitzer: Global towage leader owned by A.P. Moller-Maersk, operating a fleet of ~400 vessels across harbour towage, terminal towage, offshore support, and salvage. Comparable to Muller as a towage incumbent, but with vastly broader geographic footprint and integrated shipping group backing.
• Heerema Marine Contractors: Dutch offshore installation contractor operating semi-submersible crane vessels for heavy lifting in oil & gas and offshore wind. Comparable to Muller on offshore wind installation support and heavy marine transport, but at substantially larger scale.
• Boskalis (Dockwise): Global maritime services major operating Dockwise-style heavy marine transport, offshore support, and salvage. Comparable to Muller on heavy-lift Ro/Ro barge transport and salvage, but with much larger fleet and broader scope.
• Boluda Towage: European and Latin American towage operator with a fleet of harbour tugs, offshore support vessels, and salvage tugs. Comparable to Muller on tugboat services and salvage towage, with broader geographic coverage.

Direct peers

• BigLift Shipping: Dutch-headquartered heavy-transport and project cargo operator focused on breakbulk and oversized shipments via specialized vessels. Comparable to Muller on heavy transport of oversized cargo and offshore structures.
• Wagenborg: Dutch family-owned shipping and logistics group with multipurpose vessels, heavy-lift, and towage services. Comparable to Muller in its family ownership, Dutch heritage, and integrated maritime service portfolio including heavy transport.
• Saam Smit Towage: Joint venture between SAAM and Royal Boskalis serving harbour towage and offshore support in Europe, the Americas, and Asia. Closely comparable to Muller on harbour towage, offshore vessel support, and the mix of recurring port contracts and project work.
• Fairplay Towage: European harbour and terminal towage provider with operations in the Netherlands, Germany, Belgium, Spain, and Poland. Direct comparable to Muller on harbour towage service offering and European port customer base.
• KOTUG: Dutch-headquartered international towage operator with harbour towage, terminal towage, and offshore support services across Europe, the Americas, and Asia-Pacific. Most direct Dutch comparable to Muller, both serving harbour towage and offshore/SAR-adjacent work.
• ALP Maritime: Specialist in ocean towage and heavy-lift marine transport using a fleet of high-bollard-pull tugs and modular barges. Comparable to Muller on sea/coastal towage, rig moves, and project cargo ocean transport.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@mullerdordrecht
• Facebookfacebook.com/mullerdordrecht
• LinkedInlinkedin.com/company/muller-dordrecht
• Instagraminstagram.com/muller_dordrecht

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Muller Dordrecht