De Klerk Werkendam
De Klerk Werkendam is a privately held Dutch civil engineering contractor founded in 1859 that delivers hydraulic, steel, and mechanical engineering services for water infrastructure and port projects, serving government agencies and port authorities in the Netherlands via competitive tenders and consortiums.
- Company typePrivate
- Founded1859
- HeadquartersWerkendam, Netherlands
- Headcount51–100
- GTM typeB2B
- OfferingServices
What De Klerk Werkendam does
De Klerk Werkendam is a privately held Dutch civil engineering contractor founded in 1859, headquartered in Werkendam, Netherlands, operating through two wholly-owned divisions: De Klerk Waterbouw (hydraulic engineering) and De Klerk Staalbouw (steel construction), with an additional mechanical engineering (Werktuigbouw) discipline and a manufacturing workshop in Kruiningen. The company delivers water infrastructure, steel structures, and heavy mechanical components for quay walls, locks, flood barriers, harbors, sluices, and industrial applications, executing projects end-to-end with its own workforce and equipment. Its primary customers are Dutch public-sector and regulated entities, including Rijkswaterstaat, provincial authorities, and port operators such as the Port of Rotterdam Authority, with revenue generated via competitive tendering and consortium arrangements with partners such as Hakkers and Van Oord on large-scale port-expansion projects like the Yangtzekanaal widening.
The business model is project-based and contract-driven: revenue is derived from one-off construction contracts and consortium-based professional services engagements, with pricing determined through competitive tendering rather than published rates. De Klerk pursues an enterprise field-sales motion, engaging directly with project owners and consortium partners for large infrastructure works, and maintains a modest digital presence (corporate website, Instagram) primarily for employer branding. Notable project references include maintenance of the Stormvloedkering Ramspol guide roll system, the Zee en Delta sluice maintenance program, the Oosterscheldekering sluice adjustment Phase 1, renovation of the Snelle Sluis Moordrecht, and fabrication of a main girder for Nedcranes container cranes. The company is privately held with no identified parent, private equity, or venture capital backing, consistent with its long-standing founder/family-controlled character.
De Klerk Werkendam firmographics
Firmographics- Name
- De Klerk Werkendam
- Legal name
- De Klerk Werkendam
- Website
- https://deklerkbv.nl
- Company type
- Private
- Founded year
- 1859
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- De Klerk Werkendam is a privately held Dutch civil engineering contractor founded in 1859 that delivers hydraulic, steel, and mechanical engineering services for water infrastructure and port projects, serving government agencies and port authorities in the Netherlands via competitive tenders and consortiums.
- Ownership category
- akta.pro rank
De Klerk Werkendam industry classification
Industry- Product category
- Hydraulic Engineering and Marine Construction Services
- NAICS
- Water and Sewer Line and Related Structures Construction (237110), Water and Sewer Line and Related Structures Construction (23711), Heavy and Civil Engineering Construction (237)
- SIC
- Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Heavy Construction Other Than Bldg Const - Contractors (1600)
- akta.pro primary industry
- Stormwater & Drainage Infrastructure Construction (Sewer, Detention, Outfalls) (IMAFAGAF)
- akta.pro secondary industries
- Intake/Outfall & Raw Water Abstraction Works (River/Sea Intakes, Outfalls) (IMAFAGAI), Construction Management & Delivery (EPCM/CMAR/Design-Build Oversight) (EUANALAE), Design & Engineering for Renewal/Expansion (Pipelines, Pump Stations, Treatment Plants) (EUANALAD), Storage & Conveyance Structures (Reservoirs, Tanks, Culverts, Tunnels) (IMAFAGAE)
Keywords
Where De Klerk Werkendam is headquartered
LocationHeadquarters
- HQ city
- Werkendam
- HQ country
- Netherlands
- HQ region
- Europe
Offices2 records
Markets served
De Klerk Werkendam business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Supply Chain
Revenue model
- Infrastructure Construction Services: De Klerk generates revenue through direct project contracts for water infrastructure, steel construction, and mechanical engineering projects. Revenue is project-based and derived from competitive tendering with government agencies and port authorities.
- Consortium Projects: Participation in consortium arrangements with partners such as Hakkers and Van Oord for large-scale port infrastructure projects, dividing scope and revenue responsibilities.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels2 records
De Klerk Werkendam product offering
Product offeringCore offering
De Klerk Werkendam is a Dutch civil engineering contractor that delivers hydraulic engineering, steel construction, and mechanical engineering services for water and port infrastructure. The company executes projects from planning to completion using its own people and equipment across three disciplines: waterbouw (quays, locks, flood barriers, harbors, coastal works), staalbouw (structural steel for container cranes and industrial frames), and werktuigbouw (maintenance and renovation of heavy mechanical systems such as sluice mechanisms and guide roll systems).
Product overview
De Klerk Werkendam is a Dutch civil engineering contractor founded in 1859, operating as a single unified company with three integrated disciplines. The company delivers projects from planning to completion using their own people and equipment. Waterbouw (hydraulic engineering) handles quay walls, locks, flood barriers, and harbor infrastructure. Staalbouw (steel construction) fabricates structural components including container cranes and industrial frames. Werktuigbouw (mechanical engineering) maintains and renovates heavy mechanical systems and large industrial components. Projects span flood protection infrastructure, maritime facilities, and industrial mechanical systems across the Netherlands.
Differentiator
Problem solved
Functional benefit
Products and services
- Waterbouw (Hydraulic Engineering)
Companies that use De Klerk Werkendam
Customer profileNamed customers1 record
Segments2 records
Ideal customer profiles2 records
De Klerk Werkendam technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature2 records
De Klerk Werkendam partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core.
- HakkerscoreHakkers is a consortium partner with De Klerk and Van Oord on the Port of Rotterdam Yangtzekanaal widening project. The consortium delivered phase one (tugboat quay with 12 berths and shore power) and is executing phase two involving 1,450 metres of quay wall construction.
- Van OordcoreVan Oord is a consortium partner with De Klerk and Hakkers on the Port of Rotterdam Yangtzekanaal widening project. The consortium handles major port infrastructure expansion including dredging of approximately 1.4 million cubic metres of sand.
Scale indicators2 records
Recent moves5 records
Expansion highlights4 records
De Klerk Werkendam competitors and assessment
Company assessmentBroad incumbents
- Strukton: Dutch infrastructure contractor with civil engineering, water works, and asset-management capabilities. Comparable as a competitor in Dutch hydraulic, sluice, and civil infrastructure tenders.
- Van Oord: Major Dutch marine contractor and consortium partner with De Klerk on the Port of Rotterdam Yangtzekanaal widening. Operates broadly across dredging, offshore wind, and land reclamation; relevant as both a partner and a competing bidder for large Dutch hydraulic tenders.
- DEME: Belgian marine contractor with strong dredging, land reclamation, and coastal-defense capabilities. Comparable as a European incumbent competing for Dutch and Northwest European hydraulic infrastructure tenders.
- Jan De Nul: Large Belgian marine contractor with dredging, marine construction, and offshore capabilities. Comparable as a competing bidder on large-scale port expansion and coastal-defense projects across Northwest Europe.
- Heijmans: Major Dutch general contractor with infrastructure, water, and civil engineering operations. Comparable as a competitor in Dutch public-works tenders, including civil and water-related scopes where De Klerk operates.
- Boskalis: Large Dutch-listed marine contractor and dredging heavyweight operating globally in port construction, coastal defense, and offshore services. Comparable as a competing bidder for major Dutch hydraulic and port-infrastructure tenders.
- TBI Holdings: Diversified Dutch construction group operating across civil infrastructure, water, and technical services. Comparable as a parent-style incumbent competing in Dutch civil and water infrastructure tenders.
Others
- Royal HaskoningDHV: Dutch engineering consultancy with strong water, maritime, and Delta expertise. Comparable as a partner/consultant ecosystem participant on Dutch hydraulic projects and as a potential upstream advisor to De Klerk's clients.
Direct peers
- Mourik: Dutch industrial services and civil contractor with activities in environmental works, dredging, and industrial maintenance. Comparable to De Klerk as a Netherlands-based mid-market specialist pursuing industrial and infrastructure contracts.
- Hakkers: Dutch waterbouw specialist and consortium partner with De Klerk and Van Oord on Yangtzekanaal. Directly comparable as a Netherlands-based hydraulic engineering contractor of similar size and capability profile, competing for the same waterbouw tenders.
Market position
Strengths4 records
Weaknesses5 records
Competitive moat3 records
Key risks6 records
Key highlights6 records
Customer concentration
De Klerk Werkendam social profiles
Digital presenceDe Klerk Werkendam financial estimates
Financial estimateRevenue estimate
Valuation estimate
De Klerk Werkendam leadership team
Management profileNumber of profiles
De Klerk Werkendam subsidiaries and ownership
Company hierarchySubsidiaries2 records
De Klerk Werkendam funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
De Klerk Werkendam 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 De Klerk Werkendam
What does De Klerk Werkendam do?
De Klerk Werkendam is a Dutch civil engineering contractor that delivers hydraulic engineering, steel construction, and mechanical engineering services for water and port infrastructure. The company executes projects from planning to completion using its own people and equipment across three disciplines: waterbouw (quays, locks, flood barriers, harbors, coastal works), staalbouw (structural steel for container cranes and industrial frames), and werktuigbouw (maintenance and renovation of heavy mechanical systems such as sluice mechanisms and guide roll systems).
Is De Klerk Werkendam a public or private company?
De Klerk Werkendam is a private company. It is classified as family owned and is currently operating.
When was De Klerk Werkendam founded?
De Klerk Werkendam was founded in 1859. It employs 51 to 100 people.
Where is De Klerk Werkendam based?
De Klerk Werkendam is headquartered in Werkendam, Netherlands, in the Europe region.
How does De Klerk Werkendam make money?
Two revenue lines are on record. Infrastructure Construction Services are the primary driver. The others are consortium Projects.
Who are De Klerk Werkendam's main competitors?
Broad incumbents on record are Strukton, Van Oord, DEME, Jan De Nul, Heijmans, Boskalis and TBI Holdings. Royal HaskoningDHV is listed as an others. Direct peers are Mourik and Hakkers.
Does De Klerk Werkendam have an API?
No public API is recorded for De Klerk Werkendam.
What industry is De Klerk Werkendam in?
De Klerk Werkendam's product category is Hydraulic Engineering and Marine Construction Services. Its primary akta.pro industry code is IMAFAGAF, Stormwater & Drainage Infrastructure Construction (Sewer, Detention, Outfalls), with a secondary code of IMAFAGAI, Intake/Outfall & Raw Water Abstraction Works (River/Sea Intakes, Outfalls). Its NAICS code is 237110 and its SIC code is 1623.