Dolderman B.V.
Dolderman B.V. is a Dutch family-owned marine propulsion specialist serving inland shipping vessel operators with turn-key newbuild outfitting, engine maintenance for Caterpillar and John Deere systems, electrical and reverse-gear service, and parts supply. Founded 1922 and headquartered in Dordrecht, the company operates from a 2023-built facility with 24/7 service across Europe.
- Company typePrivate
- Founded1922
- HeadquartersDORDRECHT, Netherlands
- Headcount1–10
- GTM typeB2B
- OfferingServices
What Dolderman B.V. does
Dolderman B.V. is a Dutch private limited company founded in 1922 in Leidschendam and headquartered in Dordrecht, Netherlands, operating as an inland shipping (binnenvaart) marine propulsion specialist. The company serves vessel owners and operators of dry cargo ships, container ships, tank ships, passenger ships, and push boats, and operates as an Official Marine Dealer for Caterpillar and John Deere engines. Its core technology is the integration of OEM diesel propulsion systems, generatorsets, keerkoppelingen (reverse gears, including Masson, Reintjes, ZF, and Twin Disc), and electrical systems into inland vessels, with services delivered through a 24/7 servicedesk and mobile technicians across Europe.
The company operates six interconnected service lines from a purpose-built 2023 facility at Grevelingenweg 1A in Dordrecht, which includes 20,000 m2 of terrain, two inlet harbors, 970m of quays, two tower cranes, 3,200 m2 of workshop halls, and a 1,000 m2 central warehouse. The service lines are Afbouw en Hermotorisering (turn-key newbuild outfitting and repowering), Motorenservice (engine maintenance and repair with bundled T.A.M./S.O.S. preventive contracts), Elektroservice (electrical and electronic systems), Keerkoppelingservice (reverse gear revision, supply, and OPI inspection contracts), parts and filters sales, and DOLPower generatorsets delivered through a partnership. Approximately 80 employees execute project-based newbuild work, recurring maintenance contracts, and dispatch-based repair services; the company is family-owned with no disclosed external funding or institutional investment.
Revenue is generated through professional services (project-based newbuild contracts, recurring maintenance contracts, corrective repairs, and overhauls) and hardware sales (original parts, filters, and DOLPower generatorsets). Go-to-market is direct enterprise field sales targeting inland shipping vessel operators, with no marketplace or reseller channels used for engine service. Pricing is project- and contract-based; the only disclosed commercial lever is a 5% discount on labor and parts when customers combine both T.A.M. and S.O.S. preventive maintenance contracts. The company is privately held with no public ticker, no parent company, and no disclosed revenue figures.
Dolderman B.V. firmographics
Firmographics- Name
- Dolderman B.V.
- Legal name
- Dolderman B.V.
- Website
- https://dolderman.nl
- Company type
- Private
- Founded year
- 1922
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Dolderman B.V. is a Dutch family-owned marine propulsion specialist serving inland shipping vessel operators with turn-key newbuild outfitting, engine maintenance for Caterpillar and John Deere systems, electrical and reverse-gear service, and parts supply. Founded 1922 and headquartered in Dordrecht, the company operates from a 2023-built facility with 24/7 service across Europe.
- Ownership category
- akta.pro rank
Dolderman B.V. industry classification
Industry- Product category
- Marine Engineering Services
- NAICS
- Ship Building and Repairing (336611)
- SIC
- Ship & Boat Building & Repairing (3730)
- akta.pro primary industry
- Commercial Ship Repair & Drydocking (TLAKAKAA)
- akta.pro secondary industries
- Propulsion MRO, Spares & Field Service (Overhauls, retrofits, upgrades) (IMAJAHAN), Propulsion Drives, Gearboxes & Shaftlines (IMAJAHAD)
Keywords
Where Dolderman B.V. is headquartered
LocationHeadquarters
- HQ city
- DORDRECHT
- HQ country
- Netherlands
- HQ region
- Europe
Offices1 record
Markets served
Dolderman B.V. business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Infrastructure, Supply Chain, Operations, Marketing or Sales
Revenue model
- New ship Afbouw and Hermotorisering: Turn-key delivery of newly built cascos for inland navigation. As main contractor, Dolderman coordinates complete propulsion installation, keerkoppeling, electrical systems, and delivers finished vessels including dry cargo ships, container ships, tank ships, passenger ships and push boats. Revenue from project-based contracts with ship owners and operators.
- Engine maintenance and repair: Service and repair of Caterpillar, Hatz and John Deere diesel motors for inland shipping vessels. Includes preventive maintenance contracts (T.A.M., S.O.S.), corrective repairs, and overhauls. Revenue from labor and parts.
- Keerkoppeling service: Revision, repair, delivery, installation and alignment of reverse gears including Masson, Reintjes, ZF and Twin Disc brands. Also offers used and refurbished keerkoppelingen from stock.
- Electro service: Repair, maintenance and renewal of electrical and electronic components and systems on inland vessels. Includes motor controls, dashboards, batteries, and starter motors.
- Parts and filters sales: Sale of original parts and filters for Caterpillar, John Deere and Hatz motors. Extensive parts inventory maintained for rapid 24/7 service delivery.
- Generatorsets (via DOLPower): Sales of complete generatorsets including frame, mufflers, cooler, pipes and start/stop panel through DOLPower partnership.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Monthly | Experienced servicemonteur elektro salary range |
| Other | Monthly | Crediteurenadministrateur salary range |
| Other | Monthly | BBL leerling salary |
| Outcome Based/ Performance | Annual | Maintenance contract discount |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels3 records
Dolderman B.V. product offering
Product offeringCore offering
Dolderman B.V. sells, installs, and maintains propulsion motors, generatorsets, reverse gears (keerkoppelingen), and associated electrical systems for inland waterway vessels. As official Marine Dealer of Caterpillar and John Deere, the company provides turn-key delivery of newly built inland vessels (Afbouw en Hermotorisering), complete machine room refits, 24/7 emergency service, preventive maintenance contracts (T.A.M., S.O.S., OPI), and original parts supply for vessel operators across Europe.
Product overview
Dolderman B.V. is a marine dealer and service provider for inland waterway vessels, offering six interconnected service lines delivered through unified operational infrastructure (central warehouse, mobile service teams, and service application). The portfolio centers on propulsion systems from Caterpillar and John Deere (with Hatz as secondary brand) across the full vessel lifecycle: newbuild outfitting (Afbouw en Hermotorisering), ongoing motor maintenance (Motorenservice), electrical systems (Elektroservice), reverse gear service (Keerkoppelingservice), parts and filters supply (Verkoop onderdelen en filters), and a DOLPOWER partnership for generatorsets. All services are supported by a 24/7 service department and operate from a modern facility in Dordrecht with insteekhavens and workshop halls.
Differentiator
Problem solved
Functional benefit
Products and services
- Afbouw en Hermotorisering Complete outfitting of new ship hulls (casco afbouw) and repowering (hermotorisering) of existing vessels with Caterpillar, John Deere, or Hatz diesel engines. Covers turn-key delivery of new inland waterway vessels or refit of existing ships, including installation of propulsion systems, generatorsets, reverse gears, and associated electrical systems, with project management from design through sea trials.
- Motorenservice Maintenance, repair, and overhaul of Caterpillar, Hatz, and John Deere diesel engines for inland waterway vessels. Includes 24/7 emergency service across Europe, inspection services, and preventive maintenance contracts under the T.A.M. (Technical Analysis Motor) and S.O.S. oil analysis programs.
- Elektroservice Service and maintenance of electrical and electronic systems on inland waterway vessels, including repair and replacement of motor controls, dashboards, batteries, starters, and alternators, plus troubleshooting of electrical faults on Caterpillar and John Deere engines.
- Keerkoppelingservice Revision, repair, supply, installation, and alignment of reverse gears (keerkoppelingen) for inland waterway vessels. Covers Masson, Reintjes, ZF, and Twin Disc brands, plus inspection services and OPI (Onderhoudsinspectie / preventive inspection) contracts.
- Verkoop onderdelen en filters Sale of original parts and filters for Caterpillar, John Deere, and Hatz engines, along with electrical components including starters, batteries, chargers, motor controls, dashboards, and fuel consumption meters. Parts available for pickup at the Grevelingenweg warehouse or delivery via transport service.
- DOLPOWER Generatorsets Complete generatorsets for inland waterway vessel power needs, including frame, silencers (mufflers), cooler, pipes, and start/stop panel, supplied through the DOLPower partnership.
Quantifiable outcome
- 5% discount on maintenance costs when combining T.A.M. and S.O.S. contracts
- +2 more outcomes
Companies that use Dolderman B.V.
Customer profileNamed customers1 record
Segments3 records
Ideal customer profiles2 records
Dolderman B.V. technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Dolderman B.V. partnerships and signals
Strategic signalPartnerships
Six partnerships are on record, tiered core and minor.
- CaterpillarcoreOfficial Marine Dealer of Caterpillar, one of the leading motor manufacturers. Dolderman sells, installs and maintains Caterpillar propulsion motors and generatorsets. Benefits from official dealer status including access to genuine parts, technical support, and brand credibility in the marine propulsion market.
- John DeerecoreOfficial Marine Dealer of John Deere engines for inland shipping applications. Dolderman provides sales, installation and maintenance services for John Deere propulsion motors and associated systems.
- HatzminorSupplier of Hatz motors. Dolderman works with original parts and filters for Hatz engines.
- MetaalunieminorIndustry association membership. Dolderman is member of Metaalunie, an employers organization for the metalworking industry in the Netherlands.
- BOVAGminorIndustry association membership. Dolderman is member of BOVAG, the Dutch trade association for mobility companies.
- WetechminorIndustry association membership in the technology sector. Dolderman is member of Wetech.
Scale indicators5 records
Recent moves9 records
Expansion highlights5 records
Dolderman B.V. competitors and assessment
Company assessmentBroad incumbents
- Pon Power: Pon Power is the Caterpillar dealer for the Netherlands providing marine and industrial engine sales, parts, and service. Directly comparable to Dolderman as another Caterpillar Marine channel partner in the same Dutch market with overlapping customer base among inland operators.
- ZF Marine Technology: ZF Marine is a global manufacturer of marine propulsion systems including reverse gears, a brand Dolderman services. As a global incumbent, ZF operates at much greater scale than Dolderman but competes for the same reverse gear service and replacement business from inland operators.
- Damen Shipyards Group: Damen is the largest Dutch shipbuilder with an inland shipping division covering newbuild, service, and refit across Europe and beyond. A much larger incumbent that competes broadly with Dolderman for inland vessel projects but operates at significantly greater scale and geographic reach.
Direct peers
- Holland Shipyard Group: Holland Shipyard Group operates multiple Dutch shipyards including inland and small commercial vessel newbuild and repair. Comparable to Dolderman in serving inland vessel operators with combined newbuild and MRO offerings across the Netherlands.
- Reintjes GmbH: Reintjes is a German manufacturer and service provider of marine reverse gears (keerkoppelingen), one of the brands Dolderman services. Comparable in addressing the same reverse gear MRO and replacement needs of inland vessel operators across Europe.
- Thecla Bodewes Scheepswerf: Thecla Bodewes is a Dutch inland shipyard building and refitting cargo vessels, tankers, and passenger ships for the European inland shipping market. Closely comparable to Dolderman's turn-key inland vessel delivery and propulsion integration services.
- Concordia Damen: Concordia Damen is a Dutch shipbuilder focused on inland and short-sea commercial vessels, offering newbuild, repair, and outfitting services. Direct overlap with Dolderman's inland afbouw/hermotorisering and service work, serving the same European inland vessel operator base.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Dolderman B.V. social profiles
Digital presenceDolderman B.V. financial estimates
Financial estimateRevenue estimate
Valuation estimate
Dolderman B.V. leadership team
Management profileNumber of profiles
Profiles6 records
Dolderman B.V. funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Dolderman B.V. M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Dolderman B.V.
What does Dolderman B.V. do?
Dolderman B.V. sells, installs, and maintains propulsion motors, generatorsets, reverse gears (keerkoppelingen), and associated electrical systems for inland waterway vessels. As official Marine Dealer of Caterpillar and John Deere, the company provides turn-key delivery of newly built inland vessels (Afbouw en Hermotorisering), complete machine room refits, 24/7 emergency service, preventive maintenance contracts (T.A.M., S.O.S., OPI), and original parts supply for vessel operators across Europe.
Is Dolderman B.V. a public or private company?
Dolderman B.V. is a private company. It is classified as family owned and is currently operating.
When was Dolderman B.V. founded?
Dolderman B.V. was founded in 1922. It employs 1 to 10 people.
Where is Dolderman B.V. based?
Dolderman B.V. is headquartered in DORDRECHT, Netherlands, in the Europe region.
How does Dolderman B.V. make money?
Six revenue lines are on record. New ship Afbouw and Hermotorisering is the primary driver. The others are engine maintenance and repair, keerkoppeling service, electro service, parts and filters sales and generatorsets (via DOLPower).
Who are Dolderman B.V.'s main competitors?
Broad incumbents on record are Pon Power, ZF Marine Technology and Damen Shipyards Group. Direct peers are Holland Shipyard Group, Reintjes GmbH, Thecla Bodewes Scheepswerf and Concordia Damen.
Does Dolderman B.V. have an API?
No public API is recorded for Dolderman B.V..
What industry is Dolderman B.V. in?
Dolderman B.V.'s product category is Marine Engineering Services. Its primary akta.pro industry code is TLAKAKAA, Commercial Ship Repair & Drydocking, with a secondary code of IMAJAHAN, Propulsion MRO, Spares & Field Service (Overhauls, retrofits, upgrades). Its NAICS code is 336611 and its SIC code is 3730.