De Maas

What De Maas does

De Maas BV is a Dutch private limited company (B.V.) founded in 1922 and headquartered at Molenvliet 51, Zwijndrecht, Netherlands. The company operates as an exclusive importer and technical distributor of diesel engines and generators, serving marine/shipping, industrial, firefighting, and infrastructure/offshore customers primarily in the Netherlands with worldwide service coverage delivered through partner networks. Its core brand relationships include HD Hyundai Infracore (exclusive Dutch importer for marine and industrial diesel engines), Lister Petter (100+ year Dutch-market partnership for generator-set engines in the 5.5 to 41.3 kW range), and Mecc Alte (generators from portable units up to 3410 kVA), supplemented by Raywin Powertrain compact off-highway engines and integration of JCB, Mitsubishi, Yanmar, John Deere, and Stamford components into complete generatorsets. The company also markets its own De Maas-branded Fire Fighting Engines, including FM-listed versions for sprinkler installations, and runs a dedicated De Maas Parts webshop for original spare parts across represented brands. Technologically, the portfolio centers on Stage V and IMO Tier III emissions-compliant diesel platforms with SCR and particulate filter systems, supported by an in-house testing facility in Zwijndrecht used for quality control and CCNR-certified marine generatorset assembly.

De Maas runs a sales-led go-to-market model with technical sales engineers providing direct field consultation, custom configuration, and turnkey project delivery to enterprise customers. Revenue is generated through one-time equipment sales (engines, generators, generatorsets), parts sales via the webshop, and recurring professional services including installation, maintenance, repairs, and 24/7 worldwide technical support, with pricing on a custom quote basis and multi-year contract cadence. The customer base spans inland navigation, dredging and fishing fleets, industrial power and backup generation, sprinkler pump installations, and offshore / demanding infrastructure projects, addressing pain points around regulatory emissions compliance, reliability under harsh conditions, fast parts availability, and lifecycle service. The management team is compact — led by General Director Willem Verheij and General Sales Manager John van Maaren, with sales engineers, a Parts Manager, and a Back Office Manager — consistent with a closely-held, family-style operating company that has prioritized stable, long-tenured brand relationships over aggressive scale.

Name

De Maas

Legal name

De Maas B.V.

Website

https://demaasbv.nl

Company type

Private

Founded year

1922

Operating status

Operating

Headcount range

11–50 employees

Short description

De Maas BV is a Dutch exclusive importer and distributor of diesel engines and generators from HD Hyundai Infracore, Lister Petter, and Mecc Alte, serving marine, industrial, and firefighting sectors with custom assembly, parts, and worldwide service.

Ownership category

akta.pro rank

Headquarters

HQ city

Zwijndrecht

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Supply Chain, Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Engine and Generator Sales: Sale of diesel engines (marine, industrial, firefighting) and generators from brand partners including HD Hyundai Infracore, Lister Petter, and Mecc Alte
2. Parts Sales: Sale of replacement parts for all represented brands, with most parts available directly from stock
3. Service and Maintenance: Technical service including maintenance, repairs, and 24/7 emergency support throughout the product lifecycle
4. Generatorset Assembly: Custom assembly and integration of generatorsets according to customer specifications, including CCNR certification for marine applications

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels2 records

Core offering

De Maas BV is the exclusive Dutch importer and distributor of HD Hyundai Infracore marine and industrial diesel engines, Lister Petter engines, and Mecc Alte generators. The company supplies engines and complete generatorsets for marine, industrial, and firefighting applications, complemented by a stocked parts operation (De Maas Parts) and 24/7 technical service, custom assembly, and turnkey project delivery from its Zwijndrecht facility.

Product overview

De Maas BV is a specialized distributor and service provider for engines and generators serving the marine, industrial, and firefighting sectors. The company operates as an exclusive importer of HD Hyundai Infracore engines and maintains a 100+ year partnership with Lister Petter. Their core product portfolio centers on diesel engines (marine and industrial), generators (Mecc Alte), and complete generatorsets, supplemented by fire fighting engines under the De Maas brand and an extensive parts supply operation. The company also provides turnkey solutions, custom assembly at their Zwijndrecht facility, and worldwide technical service support.

Differentiator

Problem solved

Functional benefit

Products and services

• HD Hyundai Infracore Marine Diesel Engines Stage V / IMO Tier III compliant marine diesel engines from HD Hyundai Infracore for onboard power and vessel propulsion, used in inland shipping, dredging, and fisheries.
• HD Hyundai Infracore Industrial Diesel Engines Reliable diesel engines from HD Hyundai Infracore for industrial applications with Stage V emissions compliance, with or without diesel particulate filter (DPF).
• Lister Petter Engines Generator set engines with power ratings from 5.5 to 41.3 kW, supplied in the Dutch market through a partnership with Lister Petter spanning over 100 years.
• Mecc Alte Generators High-quality generators from Mecc Alte ranging from portable units to industrial models up to 2800 kVA (industry) and 2500 kVA (marine), used for emergency and prime power systems.
• Generatorsets Complete generator sets for industrial, infrastructure, and marine applications, available in open execution or sound-attenuated enclosures, integrated from JCB, Mitsubishi, Yanmar, John Deere engines with Mecc Alte or Stamford generators, including CCNR-certified marine generatorsets.
• De Maas Fire Fighting Engines Custom-built diesel engines for sprinkler pump and fire suppression installations, available as FM-Approved (FM-listed) or non-listed versions to meet fire safety and insurance compliance requirements.
• Raywin Motoren Compact off-highway diesel engines from Raywin Powertrain Technology (YUCHAI-RATO joint venture) with 0.5L to 3.3L cylinder displacement, meeting EU Stage III, Stage IIIA, and Stage V emission standards for industrial applications.
• Engine Parts Original spare parts for Lister Petter, Raywin, HD Hyundai Infracore, and Mecc Alte, most available directly from stock, with the parts department also able to source parts from other brands.
• Technical Services Comprehensive technical support including 24/7 service, installation, maintenance, repair, on-site support worldwide, and custom build according to customer-specific technical guidelines.

Quantifiable outcome

• Lister Petter engines for generator sets with power ratings from 5.5 to 41.3 kW

Named customers4 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Six partnerships are on record, tiered core and minor.

• HD Hyundai InfracorecoreChannel Partner/ Reseller/ DistributorDe Maas BV is the exclusive importer of HD Hyundai Infracore marine and industrial diesel engines in the Netherlands. HD Hyundai Infracore provides IMO Tier III and Stage V compliant engines meeting strictest environmental standards. De Maas offers these engines for marine, industrial, and generator applications.
• Lister PettercoreChannel Partner/ Reseller/ DistributorPartnership spanning over 100 years with Lister Petter in the Dutch market. Lister Petter engines are used primarily for generator sets with power ratings from 5.5 to 41.3 kW. This is one of De Maas' longest-standing brand relationships.
• Mecc AltecoreChannel Partner/ Reseller/ DistributorDe Maas distributes high-quality generators from Mecc Alte, ranging from portable generators to industrial units up to 3410 kVA. Mecc Alte is known worldwide for producing high-quality, efficient generators for various applications including marine, industrial, and mobile uses.
• RaywinminorChannel Partner/ Reseller/ DistributorRaywin Powertrain Technology Co., Ltd. is a joint venture between YUCHAI Group and RATO Group in China. Raywin develops modern compact off-highway diesel engines meeting EU Stage III, Stage IIIA and Stage V emission standards for industrial applications.
• JCB, Mitsubishi, Yanmar, John DeereminorChannel Partner/ Reseller/ DistributorDe Maas uses engines from these brands as components in their generatorsets, particularly for marine applications requiring CCNR certification. These are integrated into turnkey generatorset solutions.
• Stamford GeneratorminorChannel Partner/ Reseller/ DistributorStamford generators are used alongside diesel engines in De Maas' marine generatorsets, complementing Mecc Alte offerings for complete power solutions.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Cummins: Global manufacturer of diesel engines and power generation products, including marine, industrial, and generator-set applications. Directly competes in the engine and generatorset categories De Maas distributes and assembles.
• MAN Energy Solutions: Major European manufacturer of large marine diesel engines and turbomachinery, plus industrial power solutions. Provides overlapping propulsion and power-generation equipment to the same shipping and industrial customers De Maas serves.
• Caterpillar Marine: Global manufacturer of marine propulsion and power generation engines. Competes with De Maas's portfolio at the OEM level across commercial shipping, dredging, and offshore, and is the principal brand of comparable distributor Pon Power.
• Volvo Penta: Global manufacturer of marine and industrial diesel engines, including Stage V/IMO Tier III compliant products. Overlaps directly with De Maas's HD Hyundai Infracore marine and industrial offering, but Volvo Penta is the OEM rather than a distributor.
• MTU Rolls-Royce Power Systems: Manufacturer of high-output diesel engines, complete power generation systems, and marine propulsion. Competes with De Maas in the upper end of industrial and marine engines and integrated generator-set solutions.

Direct peers

• Himoinsa: Spanish manufacturer of generator sets and power solutions for industrial, marine, and infrastructure applications. Closely comparable product line to De Maas's generatorset assembly business and competes for similar end-customers.
• Pon Power: Dutch distributor of Caterpillar engines and power systems for marine, industrial, and oil & gas applications. Closest comparable peer: same exclusive-distributor model in the Netherlands, similar end markets, similar reliance on a single principal OEM relationship.
• Denyo: Japanese manufacturer of generator sets and power solutions for marine, industrial, and emergency power applications. Comparable product category to De Maas's Mecc Alte and generatorset offerings.
• FPT Industrial: Manufacturer of diesel and alternative-fuel engines for marine, industrial, and power generation applications. Comparable to De Maas's Raywin and Hyundai Infracore engine offerings for inland shipping, industrial, and generator-set integration.
• Hatz Diesel: German manufacturer of industrial diesel engines and power systems for construction, agricultural, and stationary applications. Comparable in scale and product focus to the industrial side of De Maas's Hyundai Infracore and Lister Petter portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/de-maas-b-v

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries1 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 De Maas