Douna Machinery

What Douna Machinery does

Douna Machinery B.V. is a Dutch privately held precision engineering and custom machine builder headquartered in Leeuwarden, Northern Netherlands. Founded in 1924 as a blacksmith firm, the company has evolved over 98 years into a one-stop-shop manufacturer offering integrated engineering design (concept, FEM/ANSYS analysis, mechatronics), CNC machining (3-axis and 5-axis milling, turning), KIWA-certified welding (EN 1090-1, ISO 3834-2), 3D metal printing, cleanroom (ISO Class 100,000) assembly, and a conditioned measuring room — all co-located at a single site with 7.80m production halls and 13 overhead cranes.

The company operates a project-based custom machine building model, taking ownership of technical problems from concept through assembly and field service. It serves six named primary verticals: defence, hydrogen, subsea & offshore, semiconductor, process industry, and water industry. Named enterprise clients include Stork Turbo Blading, Daniëli Corus, ESMER, Mokveld Valves, Optime, XEL, HSD, and Folkertsma Ginnum GWW. Revenue is generated through one-time project contracts governed by Metaalunievoorwaarden terms, supplemented by recurring field service and maintenance engagements with VCA-certified technicians.

The current strategic direction is a pivot toward hydrogen and energy transition, anchored by the Douna Hydrogen sub-brand and the €3.5 million WAviatER consortium project (led by Demcon) developing a 1 MW electrolyser for the Northern Netherlands Hydrogen Valley. The company is also expanding into additive manufacturing and academic R&D collaborations (University of Groningen, TNO, Fachhochschule Münster). All operations have been consolidated under sole owner Ale Procee since 2019, with subsidiary entities Douna Hydrogen, Douna Projects, and the historical Zaanse Precisie Machinefabriek.

Name

Douna Machinery

Legal name

Douna Machinery B.V.

Website

https://douna.nl

Company type

Private

Founded year

1924

Operating status

Operating

Headcount range

11–50 employees

Short description

Douna Machinery is a Dutch precision engineering and custom machine builder offering integrated engineering, CNC machining, certified welding, 3D metal printing, and cleanroom assembly to enterprise clients in defence, hydrogen, subsea, semiconductor, process, and water industries.

Ownership category

akta.pro rank

Product category

Precision Machining & Custom Machine Building

NAICS

Industrial Machinery Manufacturing (3332), Machinery Manufacturing (333)

SIC

Special Industry Machinery (No Metalworking Machinery) (3550), Special Industry Machinery, Nec (3559)

akta.pro primary industry

Welding, Fabrication & Field Machining Services (On-site) (IMAIACAD)

Keywords

• Precision machining services
• Custom machine building
• CNC turning milling
• Certified welding fabrication
• Hydrogen electrolyzer systems

Headquarters

HQ city

Leeuwarden

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Machine Manufacturing: Design, engineering, and fabrication of custom machines and critical mechanical components for industrial clients across defence, hydrogen, offshore, semiconductor, and process industries.
2. Precision Machining Services: CNC turning, milling (3-axis and 5-axis), and conventional machining of precision components, including pre-machined open die forgings.
3. Certified Welding Services: Industrial welding services including MIG/MAG, TIG, autogenous, and electric welding for various metal types, certified to EN 1090 and ISO 3834-2 standards.
4. Assembly Services: Disassembly and assembly services for mechanical installations, both in-house and at customer locations.
5. Field Service and Maintenance: On-site service and maintenance with fully equipped service van and BE truck, including repair, preventive maintenance, revision, and parts machining.
6. Hydrogen Technology Solutions: Manufacturing and engineering for electrolyser components and educational hydrogen systems as part of energy transition projects.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels8 records

Core offering

Douna Machinery is a precision engineering and custom machine builder operating as a one-stop-shop manufacturer. The company designs, engineers, CNC machines, welds, 3D prints, and assembles critical mechanical components and complete machines for industrial clients across defence, hydrogen, offshore, semiconductor, process, and water industries. They take ownership of technical problems from concept through finished assembly and provide certified welding, cleanroom assembly, and conditioned measuring room services under one roof.

Product overview

Douna Machinery operates as a one-stop-shop for precision engineering and manufacturing, offering integrated services from concept engineering through finished product assembly. The core portfolio includes Douna Engineering (concept/detail engineering, FEM analysis using ANSYS, mechatronics), precision CNC machining (turning and 5-axis milling), certified welding (KIWA certified for EN 1090-1 and ISO 3834-2), 3D metal printing (additive manufacturing in metals including Inconel, Titanium, and Stainless Steel), and hydrogen technology/electrolyzer systems. Additional services include casting and forging specialization, (dis-)assembly specialties, field service with VCA-certified technicians, cleanroom assembly (ISO Class 100,000), and conditioned measuring room facilities. The company serves demanding industries including defence, subsea/offshore, semiconductor, process industry, water industry, and hydrogen/energy transition applications.

Differentiator

Problem solved

Functional benefit

Brands

• Douna Hydrogen: Dedicated hydrogen business focused on electrolyzer technology, educational hydrogen systems, and green hydrogen production. Has its own website at dounahydrogen.com.

Products and services

• Douna Engineering
• Precision Machining
• Welding Specialties
• One-Stop-Shop Manufacturing
• Casting and Forging Specialist
• (Dis-)Assembly Specialties
• 3D Metal Printing
• Hydrogen Technology / Electrolyzer
• Douna Service

Quantifiable outcome

• 3.5 million euro WAviatER project demonstrating capability in major hydrogen infrastructure development
• +2 more outcomes

Named customers8 records

Segments6 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

13 partnerships are on record, tiered core and supporting.

• DemconcoreStrategic or Co-development Partner · 1 January 2022Demcon leads the WAviatER consortium developing green hydrogen technology for aviation and energy applications. The project has a 3.5 million euro budget, with Douna responsible for stack development, leakage research, measurements, control systems, and assembly support.
• JB BesturingstechniekcoreStrategic or Co-development PartnerTechnology partner in the WAviatER hydrogen project consortium, contributing expertise in control technology for electrolyser systems.
• REDStackcoreStrategic or Co-development PartnerWAviatER consortium partner specializing in energy technology, contributing to the development of hydrogen production technology for regional smart grids.
• Groningen Airport EeldecoreStrategic or Co-development PartnerProject host for the WAviatER demonstration facility at 'Hydrogen Valley Airport' where the electrolyser produces green hydrogen for light aircraft, drones, and ground equipment using electricity from on-site solar power.
• New Energy CoalitioncoreStrategic or Co-development PartnerEnergy transition organization supporting the WAviatER project, with the project's electrolyser unveiled by Director Marieke Abbink.
• University of GroningencoreStrategic or Co-development PartnerAcademic partner in the WAviatER consortium providing research expertise for hydrogen technology development.
• TNOsupportingStrategic or Co-development PartnerSupporting research organization for the WAviatER project, contributing technical expertise in hydrogen technology.
• VONKsupportingStrategic or Co-development PartnerSupporting partner in the WAviatER hydrogen project consortium.
• Groene Waterstof BoostercoreStrategic or Co-development PartnerDutch Green Hydrogen Booster organization providing voucher program support and collaboration for hydrogen technology projects, including electrolyzer design work by interns.
• EnTranCe - Centre of Expertise EnergysupportingStrategic or Co-development PartnerCentre of Expertise Energy collaborating on hydrogen technology projects including electrolyzer design through educational programs and student internships.
• Fachhochschule MünstersupportingStrategic or Co-development PartnerGerman university of applied sciences collaborating with Douna on 3D metal printing research for hydraulic blocks, improving flow and reducing pressure loss for hydrogen technology applications.
• VNO-NCWsupportingStrategic or Co-development PartnerDutch employers' organization for trade and industry participating in the Hydrogreenn networking event supporting hydrogen ecosystem development.
• Provincie FryslânsupportingStrategic or Co-development PartnerProvince of Friesland government supporting the Hydrogreenn networking event and hydrogen ecosystem development in Northern Netherlands.

Scale indicators4 records

Recent moves10 records

Expansion highlights7 records

Direct peers

• KMWE: Eindhoven-based precision machining and mechatronics specialist serving aerospace, semiconductor, and medical OEMs. Comparable to Douna in offering tight-tolerance CNC machining, assembly, and engineering under one roof for demanding industrial customers.
• NTS Group: Dutch precision mechatronics systems supplier operating from multiple sites in the Netherlands and internationally. NTS offers integrated design, precision machining, and assembly for semiconductor, analytical, and industrial customers, overlapping directly with Douna's high-precision engineering services.
• Tebulo Industrial Robotics: Dutch engineering firm specializing in custom machine building, automation, and precision mechanical engineering for industrial customers. Tebulo's product portfolio and project-based delivery model closely mirror Douna's custom machine and precision components business.
• Demcon: Dutch high-tech systems supplier and lead partner of the WAviatER hydrogen consortium in which Douna participates. Demcon provides integrated mechatronics, engineering, and manufacturing services across similar industrial and energy-transition verticals, making it the closest large-scale Dutch peer to Douna.

Regional players

• Huisman Equipment: Dutch manufacturer of heavy lifting, offshore, and marine equipment including cranes and winches. Comparable to Douna as a Netherlands-based precision heavy-equipment builder serving offshore and energy customers.
• Royal IHC: Dutch shipbuilder and supplier of equipment for dredging, offshore, and subsea markets. Royal IHC's demand for precision subsea and offshore components overlaps with Douna's Subsea & Offshore vertical.

Broad incumbents

• VDL Groep: Large Dutch industrial conglomerate with subsidiaries in precision machining, automotive, and bus/chassis. VDL's machining and subcontracting divisions serve overlapping customer segments (defence-adjacent, semiconductor, energy) at much greater scale than Douna.
• Aalberts Industries: Dutch-listed industrial technology group with operations in precision machining, flow control, and specialty components for semiconductor, aerospace, and process industries. Aalberts' mechanical components and precision services compete for the same regulated-industry customers as Douna.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/Douna.Machinery
• LinkedInlinkedin.com/company/douna-group

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries3 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 Douna Machinery