Dolderman
- Company typePrivate
- Founded1922
- HeadquartersDordrecht, Netherlands
- Headcount—
- GTM typeB2B
- OfferingServices
Dolderman firmographics
Firmographics- Name
- Dolderman
- Legal name
- Dolderman B.V.
- Website
- https://dolderman.nl
- Company type
- Private
- Founded year
- 1922
- Operating status
- Operating
- Ownership category
- akta.pro rank
Dolderman industry classification
Industry- Product category
- Marine Engineering Services
- NAICS
- Ship Building and Repairing (336611), Ship and Boat Building (3366), Ship and Boat Building (33661)
- SIC
- Ship & Boat Building & Repairing (3730), Engines & Turbines (3510)
- akta.pro primary industry
- Propulsion MRO, Spares & Field Service (Overhauls, retrofits, upgrades) (IMAJAHAN)
- akta.pro secondary industries
- Propulsion, Shafting & Rudder Repair (Engines, Gearboxes, Thrusters) (IMAJAFAC), Commercial Ship Repair & Drydocking (TLAKAKAA), Propulsion Drives, Gearboxes & Shaftlines (IMAJAHAD), Marine MRO Parts & Consumables Distribution (TLAKAOAJ)
Keywords
Where Dolderman is headquartered
LocationHeadquarters
- HQ city
- Dordrecht
- HQ country
- Netherlands
- HQ region
- Europe
Offices1 record
Markets served
Dolderman business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Infrastructure, Supply Chain, Operations, Others
Revenue model
- New Build Completion (Afbouw): Complete turn-key delivery of new build inland navigation vessels. As main contractor, coordinates entire process from design through trial run with network of specialized subcontractors and suppliers. Delivers various vessel types including dry cargo ships, container ships, tank ships, passenger ships and push boats. Revenue from project-based contracts for new casco completion.
- Motor Replacement and Retrofitting (Hermotorisering): Replacement of propulsion installations and upgrades to meet latest exhaust emission standards. Includes removal of old engines, foundation modifications, pipework adaptation or renewal, alignment and grouting of engines and reverse gears.
- Maintenance and Service: Maintenance, repair and revision of Caterpillar, Hatz and John Deere diesel motors. Includes preventive maintenance contracts (T.A.M. and S.O.S.) providing regular inspection and oil analysis services.
- Parts and Filters Sales: Sale of original parts and filters for Caterpillar, John Deere and Hatz motors. Extensive parts inventory for diesel, electro and reverse gear service departments. Includes additional parts such as starters, batteries, chargers, motor controls, dashboards, and fuel consumption meters.
- Reverse Gear (Keerkoppeling) Service: Revision, repair and delivery of new reverse gears including installation, alignment for all common brands including Masson, Reintjes, ZF and Twin Disc. Supply and installation of new reverse gears, maintenance, repair and revision services.
- Used and Refurbished Reverse Gear Sales: Stock of used and refurbished reverse gears with associated components and parts, including models no longer in production or with very long delivery times.
- Electrical Service: Repair, maintenance and renewal of electrical and electronic components and systems. Troubleshooting and installation/replacement of motor controls, dashboards, batteries. Work on electrical systems of inland navigation vessels.
- Inspection Contracts (OPI): Annual preventive inspection contracts for reverse gears with comprehensive inspection report. Report shows condition of reverse gear and can serve as demonstrable proof of maintenance.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | T.A.M. Contract - Preventive Motor Inspection |
| Subscription | Annual | S.O.S. Contract - Oil Analysis Based Preventive Inspection |
| Subscription | Annual | Combined T.A.M. and S.O.S. Contract |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels4 records
Dolderman product offering
Product offeringCore offering
Dolderman sells, installs and services marine propulsion engines, generatorsets, reverse gears and associated electrical systems for inland navigation (binnenvaart) vessels. The company operates as an Official Marine Dealer for Caterpillar and John Deere, delivering turn-key new ship construction, propulsion repowering, preventive maintenance contracts (T.A.M. and S.O.S.), electrical service, reverse gear overhaul, and parts sales from a purpose-built facility in Dordrecht with 24/7 service availability across Europe.
Product overview
Dolderman provides a comprehensive suite of marine propulsion and vessel services for the inland navigation industry. The core offering consists of Afbouw en Hermotorisering (ship construction and repowering), Motorenservice, Elektroservice, and Keerkoppelingservice as the four main service departments, supported by a parts and filters sales operation. Dolderman is an official Marine Dealer for Caterpillar and John Deere engines and sells complete DOLPOWER generatorsets. Services range from turn-key new vessel construction and propulsion system upgrades to 24/7 maintenance contracts (T.A.M. and S.O.S.), electrical systems, and reverse gear services, all backed by an extensive parts inventory.
Differentiator
Problem solved
Functional benefit
Products and services
- Afbouw en Hermotorisering (New Build Completion & Repowering)
Quantifiable outcome
- 5% discount on maintenance costs when combining T.A.M. and S.O.S. contracts
- +3 more outcomes
Companies that use Dolderman
Customer profileNamed customers1 record
Segments5 records
Ideal customer profiles4 records
Dolderman technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Dolderman partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core and minor.
- CaterpillarcoreOfficial Marine Dealer of Caterpillar, a leading motor manufacturer. Dolderman is authorized to sell, install and maintain Caterpillar marine propulsion motors, generatorsets, and associated systems. Provides exclusive dealer access to Caterpillar parts, technical support, and training.
- John DeerecoreOfficial Marine Dealer of John Deere, a leading motor manufacturer. Dolderman is authorized to sell, install and maintain John Deere marine propulsion motors, generatorsets, and associated systems. Provides dealer access to John Deere parts, technical support, and training.
- DOLPowercoreRelated company for generatorsets. Dolderman facilitates sales of complete generatorsets including frame, silencers, cooler, pipes and start/stop cabinet through their facilities. DOLPower provides the generatorset products while Dolderman handles sales and installation for inland navigation customers.
- BOVAGminorIndustry association membership for automotive and transport companies. Dolderman is a member, indicating professional standards and industry standing.
- WetechminorIndustry association membership for technical companies. Dolderman is a member.
- MetaalunieminorDutch metal industry association. Dolderman is a member and applies Metaalunie general terms and conditions (Metaalunievoorwaarden). Also affiliated with the Metaal en Techniek collective labor agreement (CAO Metaal & Techniek).
- Da Vinci College (Dordrecht)minorRegional technical college with which Dolderman collaborates for training of technicians. Dolderman's internal instructors maintain good contacts with the college for student placements and apprenticeship programs.
- Gilde Vakcollege Techniek (Gorinchem)minorRegional technical college with which Dolderman collaborates for training of technicians. Dolderman's internal instructors maintain good contacts with the college for student placements and apprenticeship programs.
Scale indicators5 records
Recent moves3 records
Expansion highlights5 records
Dolderman competitors and assessment
Company assessmentDirect peers
- Niestern Sander Reparatie en Nieuwbouw: Dutch shipyard specialized in repair, maintenance, and new build of inland vessels. Competes directly for the same Dutch ship owner customers on both service work and complete vessel delivery projects.
- Concordia Damen: Dutch shipyard group offering new build, refit, and lifecycle service for inland and coastal workboats. Comparable in offering complete vessel delivery plus propulsion and mechanical service to commercial operators.
- Kooiman De Vries Scheepswerf: Dutch inland shipyard and vessel service provider based in Zwijndrecht, near Dordrecht. Offers new build, refit, and propulsion service for the same binnenvaart customer base with overlapping aft engine installation and lifecycle service capabilities.
- Royal Bodewes Scheepswerf: Dutch shipyard building and servicing inland cargo vessels, with overlapping afbouw, motor service, and refit capabilities. Operates in the same Dutch inland ship owner market segment.
- Padmos Scheepswerf: Long-established Dutch inland shipyard with new build and refit capabilities for cargo and tank vessels. Directly comparable customer base and overlapping propulsion/marine engineering services for the binnenvaart market.
- De Bunschoten Scheepswerf: Dutch inland shipyard focused on new build and repair of cargo vessels for the binnenvaart sector, directly competing for ship owner maintenance and propulsion upgrade work.
Broad incumbents
- ZF Marine Technology: Global manufacturer of marine transmissions and reverse gears — one of the brands Dolderman services. Competes indirectly by offering direct service programs and parts supply for marine gears in commercial vessels.
- Pon Power: Largest Caterpillar industrial and marine dealer in the Netherlands. Competes on engine sales, parts, and service for both marine and industrial customers with broader scale and multi-region coverage.
- Volvo Penta: Major global marine diesel engine OEM with an independent marine dealer/service network. Competes for marine engine service business in European commercial and inland markets and represents a dealer alternative to Caterpillar/John Deere.
- Caterpillar Marine Power Systems: Global OEM of marine propulsion engines and the principal brand Dolderman distributes and services. Sets the technical, parts, and warranty framework that governs Dolderman's service operations.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
Dolderman social profiles
Digital presenceDolderman financial estimates
Financial estimateRevenue estimate
Valuation estimate
Dolderman leadership team
Management profileNumber of profiles
Profiles6 records
Dolderman funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Dolderman 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
What does Dolderman do?
Dolderman sells, installs and services marine propulsion engines, generatorsets, reverse gears and associated electrical systems for inland navigation (binnenvaart) vessels. The company operates as an Official Marine Dealer for Caterpillar and John Deere, delivering turn-key new ship construction, propulsion repowering, preventive maintenance contracts (T.A.M. and S.O.S.), electrical service, reverse gear overhaul, and parts sales from a purpose-built facility in Dordrecht with 24/7 service availability across Europe.
Is Dolderman a public or private company?
Dolderman is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Dolderman founded?
Dolderman was founded in 1922.
Where is Dolderman based?
Dolderman is headquartered in Dordrecht, Netherlands, in the Europe region.
How does Dolderman make money?
Eight revenue lines are on record. New Build Completion (Afbouw) is the primary driver. The others are motor Replacement and Retrofitting (Hermotorisering), maintenance and Service, parts and Filters Sales, reverse Gear (Keerkoppeling) Service, used and Refurbished Reverse Gear Sales, electrical Service and inspection Contracts (OPI).
Who are Dolderman's main competitors?
Direct peers on record are Niestern Sander Reparatie en Nieuwbouw, Concordia Damen, Kooiman De Vries Scheepswerf, Royal Bodewes Scheepswerf, Padmos Scheepswerf and De Bunschoten Scheepswerf. Broad incumbents are ZF Marine Technology, Pon Power, Volvo Penta and Caterpillar Marine Power Systems.
Does Dolderman have an API?
No public API is recorded for Dolderman.
What industry is Dolderman in?
Dolderman's product category is Marine Engineering Services. Its primary akta.pro industry code is IMAJAHAN, Propulsion MRO, Spares & Field Service (Overhauls, retrofits, upgrades), with a secondary code of IMAJAFAC, Propulsion, Shafting & Rudder Repair (Engines, Gearboxes, Thrusters). Its NAICS code is 336611 and its SIC code is 3730.