KOOLE Contractors

What KOOLE Contractors does

KOOLE Contractors is a Netherlands-headquartered industrial and maritime services provider operating two integrated divisions: Onshore (industrial demolition, dismantling, decommissioning, industrial cleaning, and hazardous material remediation including asbestos and chromium-6 handling) and Offshore (maritime salvage, wreck removal, maritime construction, and 24/7 emergency response). Founded in 1984 as a family demolition business, the company has grown to over 250 employees and operates from offices in the Netherlands (HQ, Vijfhuizen), Germany (Duisburg), Belgium (Antwerp), the United Kingdom (London), Suriname (Paramaribo), and Dubai (Business Bay) through wholly-owned subsidiaries including Koole NV, Koole GmbH, KMS BV, and KMS Middle East. KOOLE is privately held under parent entity Mason Holding BV.

The company owns and operates a specialized fleet including four anchor handling tug supply vessels — KOOLE 31 (72.3 t bollard pull), KOOLE 32, KOOLE 42, and KOOLE 53 (RINA-certified, 550,000-liter bunker capacity) — plus four crane barges equipped with Liebherr HS-series cranes (K9127, K9128, K10030, H283) offering lifting capacities of 200 to 300 tonnes, the K10031 accommodation barge (120 PAX, 8-point mooring), and multiple deck cargo pontoons. Notable technical methods include the Chisel Method and Cut & Grab technique for wreck removal, 4-point mooring systems for stable offshore lifting, and artificial basin construction (28,000 m² documented on the Lifty Zeebrugge dry dock salvage). The fleet is also offered for third-party charter, providing a secondary utilization channel.

KOOLE generates revenue primarily through project-based professional services contracts won via competitive tendering and direct enterprise relationships in petrochemical, refining, power generation, maritime, and industrial sectors. Named customers include RWE, bp, TotalEnergies, Borealis, Damen, Smit, Thyssenkrupp, Sudzucker, Grande Americano Group, and ProRail. Pricing is quote-based and project-specific with no public rate cards. Marquee emergency response engagements — Fremantle Highway, MV OS 35, Verity, Grande Brasile, Lifty Zeebrugge, and the Voorschoten train accident — have built a reputation-led pipeline that drives subsequent contract wins. Leadership comprises Roy van Riessen (Managing Director, Onshore), Gijs Olsthoorn (General Manager, Offshore), and Rob Vosters (Managing Director, Belgium/France/Luxembourg), with founder Paul Koole retaining ownership involvement.

Name

KOOLE Contractors

Legal name

KOOLE

Website

https://koole.eu

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

51–100 employees

Short description

KOOLE Contractors is a Netherlands-based industrial and maritime services provider specializing in demolition, hazardous material remediation, wreck removal, and 24/7 emergency response for enterprise clients in the petrochemical, refining, maritime, and energy sectors across six countries.

Ownership category

akta.pro rank

Product category

Industrial and Maritime Services

NAICS

Hazardous Waste Collection (562112), Site Preparation Contractors (23891)

SIC

Misc Industrial & Commercial Machinery & Equipment (3590), Refuse Systems (4953)

akta.pro primary industry

Spill Response & Emergency Environmental Services (Oil/Chemical) (IMAIAGAD)

akta.pro secondary industries

Asset Recovery & Decommissioning (Derelict Vessels, Abandoned Property) (IMAJANAI), Pollution Control & Environmental Remediation (Booming, Skimming, Shoreline Cleanup) (TLAHAIAH), Emergency Spill Response & Environmental Cleanup (Oil/Chemical Spills) (BPALAKAM), Environmental, Waste & Emissions Control Systems (Wastewater, VOC Capture, Spill Response) (IMAJALAK)

Keywords

• Industrial demolition services
• Maritime wreck removal
• Hazardous material remediation
• Industrial cleaning services
• Offshore salvage operations

Headquarters

HQ city

Vijfhuizen

HQ country

Netherlands

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Industrial Demolition Services: Project-based revenue from demolition, dismantling, and decommissioning of industrial facilities including refineries, power plants, factories, storage tanks, silos, and associated installations. Revenue earned through competitive bidding on project contracts.
2. Maritime Salvage and Wreck Removal: Revenue from complex maritime operations including salvage operations, wreck removal, maritime construction, and emergency response services worldwide. Projects range from single vessel removals to large-scale emergency responses.
3. Industrial Cleaning Services: Tank and pipeline cleaning, silo/tank cleaning, deep cleaning during product changes, sewer cleaning, hazardous material remediation (asbestos, chromium-6, soil remediation), and 24/7 emergency response services.
4. Fleet Charter and Equipment Hire: Fleet of tug vessels and barges offered for hire to third parties, providing flexible maritime solutions. Vessels include AHTS tugs, crane barges, accommodation barges, and flattop pontoons.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

KOOLE Contractors delivers industrial demolition, dismantling, and decommissioning services for refineries, power plants, storage tanks, and industrial facilities, alongside industrial cleaning, hazardous material remediation (asbestos, chromium-6, soil), and complex maritime salvage, wreck removal, and emergency response operations. The company executes these services through an integrated onshore-offshore model supported by a proprietary fleet of tug vessels, crane barges, and specialized equipment, serving enterprise clients across petrochemical, refining, power generation, maritime, and food/pharmaceutical sectors worldwide.

Product overview

KOOLE is an industrial and maritime services company operating two integrated divisions: Onshore (industrial demolition, dismantling, industrial cleaning, hazardous material remediation) and Offshore (salvage, wreck removal, maritime construction, emergency response). The company maintains a diverse fleet of anchor handling tug supply vessels (KOOLE 31, 32, 42, 53), crane barges (K9127, K9128, K10030, H283 with Liebherr cranes), accommodation barges (K10031), and deck cargo pontoons (K4512, K4512-2, K5213). Services are delivered through specialized project teams executing complex operations including refinery demolition, ship salvage, emergency response, and industrial cleaning across global locations.

Differentiator

Problem solved

Functional benefit

Products and services

• Industrial Demolition Services Complete demolition, dismantling, and decommissioning of industrial facilities including refineries, power plants, factories, storage tanks, silos, and associated installations. Services include hazardous material removal (asbestos, chromium-6, contaminated soil), dry ice cleaning, and 24/7 emergency support. Serves enterprise clients in petrochemical, refining, power generation, and industrial sectors.
• Industrial Cleaning Services Tank and pipeline cleaning using high-pressure techniques, silo and tank cleaning after leaks or shutdowns, deep cleaning during product changes, sewer cleaning and flushing, and remediation of hazardous materials such as asbestos and chromium-6. Serves food production, pharmaceutical, petrochemical, and regulated industrial environments requiring NVWA or ATEX compliance.
• Offshore Salvage & Wreck Removal Complex maritime salvage operations including wreck removal, maritime construction, oil spill management, and emergency response worldwide. Utilizes specialized techniques such as Cut & Grab, Chisel Method, 4-point mooring systems, and artificial basin construction. Serves ship owners, P&I clubs, port authorities, and maritime insurers.
• Emergency Response Services 24/7 emergency response capabilities for hazardous material removal, industrial cleaning emergencies, and urgent maritime situations. Services available for both onshore and offshore incidents with dedicated hotlines for onshore and offshore emergencies.
• Fleet Charter and Equipment Hire Charter/hire of tug vessels, crane barges, accommodation barges, and flattop pontoons to third parties for tugboat services, crane barge operations, and accommodation solutions on inland waters, harbors, and coastal/offshore waters.

Quantifiable outcome

• Successfully removed 33,000+ metric tons of rebar from MV OS 35 vessel
• +4 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Cores EnvironmentcoreStrategic or Co-development Partner · 1 January 2024Environmental notification partner for maritime salvage projects. Cores Environment manages the flow of information to competent authorities, advises on documentation required for export notification consent, and ensures project progression by coordinating communications. Partnership established during Verity wreck removal project and utilized for regulatory compliance on transboundary waste shipments.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Stemat Salvage: Dutch marine contractor with deep experience in wreck removal, salvage, and towage across European waters; directly overlaps with Koole's offshore service portfolio.
• Multraship Salvage & Towage: Dutch towage and salvage operator covering NW European ports; comparable emergency response and wreck-removal offerings to Koole's offshore division.
• Scaldis Salvage & Marine Contractors: Belgian marine salvage and heavy-lift contractor specializing in wreck removal and offshore lifting across the North Sea; the closest direct peer to Koole's offshore salvage division in terms of project type and regional footprint.
• Ardent (formerly Svitzer Salvage): Global emergency-response and wreck-removal operator with comparable 24/7 incident response, salvage engineering, and offshore project execution capabilities.
• Mourik: Dutch industrial services provider with industrial cleaning, tank/silo cleaning, and environmental remediation; closely comparable to Koole's onshore industrial-cleaning and hazmat remediation division.

Broad incumbents

• Heerema Marine Contractors: Major Dutch offshore construction and decommissioning contractor; broader scale and vessel fleet, but directly overlapping in offshore platform removal and heavy-lift salvage.
• Boskalis: Large Dutch maritime services group with salvage, heavy lifting, and offshore capabilities; much larger scale than Koole but overlapping marine salvage and emergency-response positioning.
• DEME: Belgian marine contractor with offshore energy, dredging, and environmental services; adjacent in offshore decommissioning and environmental remediation.
• Mammoet: Dutch heavy-lifting and engineered-transport specialist; overlapping in industrial project heavy lifting (refinery demolition, module removal) though not focused on marine salvage.
• Wagenborg: Dutch maritime logistics and heavy-transport company with offshore support and project-cargo services; overlapping maritime services and heavy-lift capabilities.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/koolecontractor

Compliance16 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries4 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 KOOLE Contractors