What Harsveld Apparatenbouw does

Harsveld Apparatenbouw B.V. is a privately held Dutch industrial fabrication company founded in 1945 and headquartered at Leeghwaterweg 3, Velsen-Noord, Netherlands, operating from a single 6,000 m2 production facility. The company designs, manufactures, assembles, and maintains custom process installations — including large-scale piping, pressure vessels, tanks, heat exchangers, plate constructions, and modular skids — for heavy industry, petrochemical, chemical, energy, water, and steel clients, with named customers including Exxon, Tata, Danieli Corus, and Ketjen. Core technical differentiators are an exceptionally broad portfolio of welding Product Qualification Records covering chromium/nickel alloys, stainless steel, aluminium, titanium, (super) duplex, and heat/wear-resistant metals; Pressure Equipment Directive (PED 2014/68/EU) Module H and H1 certification enabling self-certification without notified-body inspections at each step; and 3D laser scanning for as-built documentation and integration design. All engineering, fabrication, testing, transport, and installation are executed in-house under one roof, supported by ISO 9001, ISO 3834, VCA**, CPR 305, and DNV certifications.

The business operates an enterprise field-sales go-to-market with direct engagement from design through installation; pricing is quote-based and project-specific, with revenue generated primarily through one-time custom-fabrication contracts and supplemented by recurring maintenance and repair services. Beyond its traditional petrochemical and steel base, Harsveld has extended into sustainability and renewable-energy verticals, notably the ARN diaper-recycling reactor system (15,000 tonnes / 60 million diapers per year at 40 bar and 250°C) and the Symphony Wave Power buoy manufacturing partnership with Teamwork Technology, partly funded by the EU Just Transition Fund IJmond programme. The company employs over 50 workers (essentially flat from 55 in 2016), and in January 2024 transitioned ownership via a Management Buy Out to Paul Welp, Robin 't Hart, Pierre Jonker, and Jurjen Brekeveld, with former owners Aart Kramers and Rob de Visser retained in specialist advisory roles.

Name

Harsveld Apparatenbouw

Legal name

Harsveld Apparatenbouw B.V.

Website

https://harsveld.com

Company type

Private

Founded year

1945

Operating status

Operating

Headcount range

101–250 employees

Short description

Harsveld Apparatenbouw is a privately held Dutch industrial fabricator, founded 1945 and based in Velsen-Noord, that designs, manufactures, assembles, and maintains custom process installations — including piping, pressure vessels, heat exchangers, and modular skids — for heavy industry and petrochemical clients such as Exxon, Tata, and Danieli Corus.

Ownership category

akta.pro rank

Headquarters

HQ city

Velsen-noord

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Fabrication of Process Installations: Harsveld designs, manufactures, assembles, and maintains custom process installations including piping, pressure vessels, tanks, heat exchangers, plate constructions, and skids. Revenue is generated through project-based contracts with heavy industry and petrochemical clients, encompassing engineering, fabrication, and on-site installation services. This is the primary revenue stream.
2. Maintenance and Repair Services: The company provides ongoing maintenance, repair, and improvement services for existing process installations, with a focus on replacement and optimization of existing systems from a sustainability perspective. This generates recurring service revenue from established client relationships.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Harsveld Apparatenbouw designs, fabricates, assembles, installs and maintains custom industrial process installations, including large-scale piping, pressure vessels, tanks, heat exchangers, plate/structural constructions and modular skid-mounted process units. All work is executed at its 6,000 m² production facility in Velsen-Noord and on-site at clients' heavy-industry and petrochemical locations, supported by specialized industrial welding, 3D laser scanning and certified custom engineering.

Product overview

Harsveld Apparatenbouw is an industrial fabrication company offering a comprehensive portfolio of process installation services and products. The core offerings include Leidingwerk (large-scale piping), Tank- en Drukvaten (pressure vessels and tanks), Warmtewisselaars (heat exchangers), Plaat- en Constructiewerk (plate and structural work), and Skidbouw (modular skid systems) — all manufactured in-house at their 6000 m2 production facility in Velsen-Noord. Supporting services include 3D Laser Scannen (3D laser scanning for digital documentation), Lassen (specialized welding), Montage (on-site assembly), and Maatwerk (custom engineering). The company specializes in replacement and improvement of existing installations from a sustainability perspective, serving the chemical, petrochemical, energy, water, and steel industries.

Differentiator

Problem solved

Functional benefit

Products and services

• Leidingwerk (Large-scale Piping Systems) Large-scale piping systems for heavy industry, prefabricated in Harsveld's in-house fabrication hall and installed on-site at customer locations; serves industrial operators in heavy industry, petrochemical and chemical sectors.
• Tank- en Drukvaten (Tanks and Pressure Vessels) Manufacture of pressure vessels, (steam) boilers and tanks in many types, sizes and materials, produced under CE marking for pressure equipment according to PED 2014/68/EU Modules H and H1; serves petrochemical, chemical and energy operators.
• Plaat- en Constructiewerk (Plate and Structural Work) Plate and construction work in steel, stainless steel, aluminium and high-performance alloys, including transport of loads up to 100 tonnes; serves heavy-industry construction and structural projects.
• Warmtewisselaars (Heat Exchangers) Heat exchangers — including Shell and Tube, Plate, Air, and Gas-water types — for the chemical, petrochemical, energy, water and steel industries.
• Skidbouw (Modular Skid Systems) Modular skid systems built to client specifications at Harsveld's own production facility in Velsen-Noord, covering design, engineering, fabrication, testing, transport and installation of mechanical and electrical components under one roof.
• 3D Laser Scannen (3D Laser Scanning Service) 3D laser scanning service producing detailed digital models of industrial environments, structures, pipelines and machinery for as-built documentation, installation planning and maintenance, enabling integration of new equipment into existing installations with near-zero error margin.
• Lassen (Industrial Welding Service) Industrial welding services covering chromium/nickel alloys, stainless steel (RVS), aluminium, titanium, (super) duplex, heat-resistant and wear-resistant metals, performed under an extensive PQR portfolio at international quality level.
• Montage (On-site Assembly and Installation) Full on-site installation services including delivery, hoisting, alignment, connection, testing and preventive maintenance, performed by certified fitters and welders at customer industrial sites.
• Maatwerk (Custom Engineering) Custom engineering solutions designed to client specifications, covering innovative one-off projects such as high-pressure/high-temperature diaper recycling reactors for ARN and wave-energy components for Symphony Wave Power.

Quantifiable outcome

• 15,000 tonnes of diapers processed annually, equivalent to 60,000,000 diapers per year, producing green gas, plastic, fertilizer, and biomass
• +3 more outcomes

Named customers8 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core.

• TechportcoreGTM or Marketing Partner · 26 November 2020Techport's Innovation Tribe initiative connected Teamwork Technology with Harsveld Apparatenbouw to accelerate the Symphony Wave Power project. Techport functions as a regional innovation accelerator, facilitating introductions between technology developers and industrial partners.
• Teamwork TechnologycoreStrategic or Co-development Partner · 1 January 2020Teamwork Technology is the developer of the Symphony Wave Power system, a point-absorbing wave energy technology that converts wave motion into electricity. Harsveld Apparatenbouw is the manufacturing partner producing the components and assembling the wave energy devices. The partnership has enabled the project to move from concept to dry testing and towards sea trials.
• ARN (Afvalenergiecentrale ARN)coreStrategic or Co-development Partner · 1 January 2014ARN (Afvalenergiecentrale) in Weurt operates the waste energy facility and partnered with Harsveld and Elsinga Beleidsplanning & Innovatie to develop the diaper recycling system. Harsveld designed, produced, and installed the test reactor and three production reactors that process 15,000 tonnes (60 million diapers) per year.
• Elsinga Beleidsplanning & InnovatiecoreStrategic or Co-development Partner · 1 January 2014Elsinga Beleidsplanning & Innovatie collaborated with Harsveld and ARN to develop the diaper recycling reactor technology. The company provided policy planning and innovation expertise for the project.

Scale indicators7 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Stork (A Fluor Company): Larger Dutch-originated industrial services provider (now part of Fluor) offering maintenance, modification, and asset integrity services across oil & gas, chemical, and power sectors. Comparable to Harsveld in serving the same enterprise petrochemical clients with industrial services, though at significantly greater scale and breadth.
• Spie Nederland: Dutch subsidiary of French technical services group Spie, providing industrial services including mechanical work, piping, and process installations for petrochemical and energy clients. Comparable to Harsveld in serving Dutch heavy industry with industrial mechanical services, though as part of a much broader multi-service portfolio.
• Bilfinger Industrial Services: German-headquartered industrial services provider operating across process industries in the Netherlands and wider Europe, offering mechanical services, piping, and process equipment support. Comparable to Harsveld in serving petrochemical and heavy industry clients with mechanical contracting and process installation services, though at much larger scale.

Direct peers

• Mourik: Dutch industrial services and contracting company providing mechanical, piping, and maintenance services for petrochemical, chemical, and energy clients. Comparable to Harsveld in delivering industrial piping, process equipment installation, and ongoing maintenance services to heavy industry customers in the Netherlands.
• Frames Process Technology: Dutch-based specialist in modular process skid systems and integrated process packages for oil & gas, petrochemical, and energy industries. Closely comparable to Harsveld in delivering custom-engineered modular process units, with similar focus on high-spec pressure equipment and skid-based delivery for heavy industry clients.
• Koninklijke Brink Groep: Netherlands-based industrial construction and contracting firm with capabilities in mechanical engineering, piping, steel construction, and process installations. Comparable to Harsveld in providing custom-engineered industrial fabrication and construction services for Dutch heavy industry clients.
• Stamicarbon: Dutch engineering company and licensor for urea and melamine process technology, with in-house capability to design and supply high-pressure process equipment. Comparable to Harsveld in serving petrochemical clients with specialised pressure equipment, process vessels, and custom-engineered fabrication.
• VDL Industrial Modules: Netherlands-based industrial module and skid builder serving process industries, including high-spec fabrication, piping, and mechanical assembly. Comparable to Harsveld in providing modular process solutions and integrated fabrication services from a single facility, with similar enterprise customer base in heavy industry.

Regional players

• Tebodin (Bureau Veritas): Dutch engineering consultancy (now part of Bureau Veritas) providing process engineering, pressure vessel design, and plant engineering services to industrial clients. Comparable to Harsveld in the engineering and process equipment design dimension, though primarily a consultancy without the in-house fabrication footprint.
• Comprimo (Sulzer): Dutch-licensed process technology provider (now part of Sulzer) specialising in refinery and petrochemical process design, including proprietary equipment for hydroprocessing. Comparable to Harsveld in serving petrochemical clients with specialised pressure equipment, though primarily focused on technology licensing rather than custom fabrication.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

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Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 Harsveld Apparatenbouw