What VSF does

VSF (Volker Staal en Funderingen) is a Dutch specialist foundation engineering contractor headquartered in Dordrecht and operating as an integral subsidiary of Van Hattum en Blankevoort within the VolkerWessels group. With approximately 120 specialized professionals and a modern equipment fleet, the company delivers deep foundation, soil-retaining, and water-retaining solutions for large public infrastructure, water-safety, and inner-city construction projects in the Netherlands, and has executed at least one cross-border assignment (Fehmarnbelt Tunnel, Denmark, January-February 2023).

The company's technical offering is built around an integrated portfolio of foundation techniques—diepwanden (diaphragm walls), CSM (Cutter Soil Mixing) walls, jetgrouten (jet grouting), bodeminjectie (soil injection), ankerpalen (anchor piles), damwanden (sheet piles) and combiwanden (combi walls), buispalen (pipe piles), caissons, and verankeringen—executed using proprietary equipment including the Quattro Piler and Silent Piler (vibration-free, low-noise sheet piling systems) and a hydrogen-powered foundation crane under development with Van den Heuvel - Werkendam. VSF positions itself as one of the few Dutch contractors able to combine these techniques integrally, a capability demonstrated on projects such as the Prinses Margriettunnel emergency repair, the SIF Maasvlakte offshore-wind quay, the 10.5km KIJK dike reinforcement, the Paleis Het Loo underground museum expansion, and the IJboulevard Amsterdam bicycle parking facility (a first-of-its-kind sinking-tunnel-on-piles technique).

VSF's business model is B2B and project-based. Revenue is generated through professional-services contracts for specialist foundation works, won via competitive public tendering, design-build (Design & Construct), or bouwteam arrangements with government clients such as Rijkswaterstaat, ProRail, Hoogheemraadschappen, Havenbedrijf Rotterdam, provinces, and municipalities, alongside selected private developers and cultural institutions. VSF frequently operates as the specialist foundation arm within larger VolkerWessels-led consortia and alliances (Zuidasdok, Alliantie Vught Verdiept, Bouwcombinatie Wonderwoods, KIJK). Pricing is contract-specific and not publicly disclosed; the company has no consumer-facing channel, app, or software platform. Its recognized work areas are water safety, mobility infrastructure, and inner-city (underground) construction.

Name

VSF

Legal name

Volker Staal en Funderingen (VSF)

Website

https://vsf.nl

Company type

Private

Founded year

1900

Operating status

Operating

Headcount range

101–250 employees

Short description

VSF is a Dutch specialist foundation engineering company with approximately 120 professionals, part of the VolkerWessels group. It delivers deep foundation techniques—diaphragm walls, jet grouting, CSM walls, sheet piling, and anchoring—for government infrastructure, water-safety, and urban construction projects in the Netherlands.

Ownership category

akta.pro rank

Headquarters

HQ city

Dordrecht

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Specialist Foundation Engineering Services: VSF generates revenue through specialist foundation engineering services for large infrastructure, civil engineering, and construction projects. Revenue is project-based, derived from contracts as a direct contractor or specialist subcontractor within larger consortia. Projects are won through competitive tendering and design-build/bouwteam arrangements with government and private clients.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

VSF (Volker Staal en Funderingen) is a Dutch specialist contractor that designs and executes complex foundation engineering works for civil infrastructure, water-safety, and building projects. The firm delivers techniques including diaphragm walls, anchor piles, combi walls, sheet piling, pipe piles, cutter soil mixing walls, jet grouting, soil injection, anchoring systems, and compensation grouting. It primarily serves Dutch public-sector infrastructure clients and private developers.

Product overview

VSF (Volker Staal en Funderingen) is a specialized foundation construction company with approximately 120 professionals and modern equipment. The company operates as an integral part of Van Hattum en Blankevoort within the VolkerWessels group. VSF's product portfolio consists of specialized foundation and construction techniques rather than a unified software platform. The core offerings include deep wall systems (diepwanden), anchor piles (ankerpalen), combi walls (combiwanden), sheet piles (damwanden), pipe piles (buispalen), cutter soil mixing walls (CSM-wanden), jet grouting (jetgrouten), soil injection (bodeminjectie), anchoring systems (verankeringen), and compensation grouting (compenserend grouten). These techniques are applied across three main work areas: water safety (waterveiligheid), mobility infrastructure (mobiliteit), and urban construction (binnenstedelijk bouwen). The company provides complete solutions from design to execution for foundation challenges.

Differentiator

Problem solved

Functional benefit

Products and services

• Diepwanden (Diaphragm Walls) Cast-in-situ reinforced concrete diaphragm walls used for deep basement construction, retaining structures, and cut-off walls on infrastructure and building projects; delivered for public-sector infrastructure clients and private developers.
• Ankerpalen (Anchor Piles) Drilled or driven anchor piles that transfer structural loads into deeper, load-bearing soil layers; used to secure retaining walls, quay structures, and foundation pits.
• Combiwanden (Combi Walls) Combined retaining wall systems that pair primary structural elements with intermediate sheet piles; used where heavy loads or deep excavations require robust earth- and water-retaining solutions.
• Damwanden (Sheet Pile Walls) Driven or pressed sheet pile walls used for temporary excavation support and permanent retaining structures in infrastructure, port, and building projects.
• Buispalen (Pipe Piles) Steel pipe piles driven or drilled into the ground to carry foundation loads for bridges, quays, and buildings where soil conditions require deep foundation transfer.
• CSM-wanden (Cutter Soil Mixing Walls) Cutter Soil Mixing walls constructed by in-situ mixing of soil with a cementitious binder, forming low-vibration structural and cut-off walls for urban foundation projects.
• Jetgrouten (Jet Grouting) Soil improvement technique in which a cementitious grout is injected at high pressure to create in-situ columns or panels of improved soil for foundation support and groundwater control.
• Bodeminjectie (Soil Injection) Grout injection into the ground to seal voids, stabilise soils, or compensate for ground movement; used on tunnelling and infrastructure projects to mitigate settlement risk.
• Verankeringen (Anchoring Systems) Ground anchor and tie-back systems installed to restrain retaining walls, diaphragm walls, and sheet pile structures against earth and water pressures.
• Compenserend Grouten (Compensation Grouting) Targeted grout injection executed during tunnelling or excavation to offset settlement and protect adjacent buildings, utilities, and infrastructure from ground movement.

Quantifiable outcome

• The Prinses Margriettunnel was fully reopened for traffic in September 2025, following emergency foundation repair using 1,176 anchor piles (18-30m) and 236 wall anchors.
• +4 more outcomes

Named customers10 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

Nine partnerships are on record, tiered core, strategic and minor.

• VolkerWessels Infra (Van Hattum en Blankevoort, KWS, VSF, Vialis)coreStrategic or Co-development Partner · 4 September 2024VolkerWessels Infra, a collaboration of VolkerWessels companies including Van Hattum en Blankevoort, KWS, VSF, and Vialis, won the Zuidasdok tunnel design and construction contract. VSF contributes specialist foundation techniques and wall/roof methods under compressed air for the A10 Zuid tunnel project.
• Van Hattum en BlankevoortcoreStrategic or Co-development PartnerVSF is an integral part of Van Hattum en Blankevoort, which itself is part of the VolkerWessels group. Van Hattum en Blankevoort is the primary operating entity through which VSF engages in larger projects. VSF functions as the specialist foundation arm within the larger VolkerWessels Infra collaboration, contributing specialized foundation techniques to shared infrastructure projects.
• Boskalis NederlandcoreStrategic or Co-development PartnerVSF works with Boskalis Nederland within Alliantie Vught Verdiept (AVV), alongside ProRail and Van Hattum en Blankevoort, for the PHS Den Bosch – Vught project. This alliance combines the specialized foundation expertise of VSF with Boskalis's maritime and civil engineering capabilities.
• ProRailcoreStrategic or Co-development PartnerProRail is the national railway infrastructure manager and key client for VSF in railway-related foundation projects. VSF participates in ProRail projects through various contractual arrangements including Alliantie Vught Verdiept and PHS program projects.
• Alliantie Vught Verdiept (ProRail, Van Hattum en Blankevoort, Boskalis)coreStrategic or Co-development PartnerAlliantie Vught Verdiept (AVV) is the formal project alliance for the PHS Den Bosch – Vught Verdiepte ligging. The alliance comprises ProRail (client/owner), Van Hattum en Blankevoort (main contractor), Boskalis Nederland (civil engineering), and VSF (specialist foundation engineering).
• Wonderwoods Development (Bouwwcombinatie Wonderwoods v.o.f.)coreStrategic or Co-development PartnerVSF served as the foundation and excavation pit specialist for the Wonderwoods Utrecht project, working in construction combination with Boele & van Eesteren and Kondor Wessels Amsterdam. VSF was responsible for CSM walls, soil injection, bored piles, and excavation pit waterproofing.
• Van Hattum en Blankevoort, Boskalis, Gebr. De Koning, KWS, Witteveen+Bos, Royal HaskoningDHVcoreStrategic or Co-development PartnerFor the KIJK project (Krachtige IJsseldijken Krimpenerwaard), VSF works within a broad partnership including Van Hattum en Blankevoort, Boskalis, Gebr. De Koning, KWS, Witteveen+Bos, and Royal HaskoningDHV, with the Hoogheemraadschap van Schieland en de Krimpenerwaard as the client.
• Van den Heuvel - WerkendamstrategicTechnology or IntegrationVSF is collaborating with Van den Heuvel - Werkendam (builder of foundation machines) on the conversion of a foundation crane to hydrogen propulsion — the world's first fully emission-free deep wall construction crane. Van den Heuvel performs the conversion work.
• Gebr. Van KesselminorImplementation/ SI/ Consulting PartnerGebr. Van Kessel is a sister VolkerWessels company that was involved alongside VSF in several projects, including IJboulevard fietsenstalling Amsterdam, providing additional construction capabilities.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Market position

Competitive moat5 records

Key highlights6 records

Customer concentration

• Xx.com/VolkerSF
• YouTubeyoutube.com/channel/UCuhF4sM5u_DEPebOFgyeLUg
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• Instagraminstagram.com/volkerstaalfunderingen

Revenue estimate

Valuation estimate

Number of profiles

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 VSF