Walhout Group

What Walhout Group does

Walhout Group B.V. is a family-owned Dutch strategic consulting and engineering firm that delivers integrated strategy, data, and engineering services for maritime and hydraulic infrastructure. Founded by brothers Korné and Jan Walhout and headquartered in Ridderkerk with offices in Rotterdam, Middelburg, and Alblasserdam, the group operates through three wholly-owned subsidiaries: Walhout Civil (consulting and engineering in geotechnics, port construction, and digital systems), Walhout Projects (monitoring, surveying, and data gathering using ROVs, drones, an Offshore Research & SAR vessel, and a remote-controlled hydrographic survey boat), and Walhout Maritime (hydraulic engineering and project development). Its service portfolio spans port strategy and integrated project consulting, survey and monitoring systems, data analytics, geotechnical and hydraulic engineering, parametric testing, automation, and forensic engineering, with marquee engagements including the MS Costa Concordia wreck removal, Oosterscheldekering maintenance, Zeeland Bridge structural assessment, Tema breakwater design, and Caribbean hurricane reconstruction.

The firm monetizes through project-based consulting and engineering fees, multi-year framework agreements with Dutch public agencies (notably Rijkswaterstaat for waterways, ports, and Delta Works maintenance), and specialized forensic and dispute support for legal and insurance clients. Its go-to-market is sales-led and event-driven: a compact 15-20 person team of specialists maintains direct relationships with enterprise and government buyers, supported by memberships in PIANC, Geotechniek, Energy Port Zeeland, and the Promotion Council North Sea Port, plus a September 2025 MoU with maritime partners in Malaysia. Underlying technology rests on specialized field equipment (ROVs, inspection drones, an RCV survey boat operating at <20cm water-level precision, operation rooms and monitoring containers) combined with OSINT, satellite, and proprietary monitoring analytics; a climbing cofferdam system invented for the North Sea Terminal Antwerp repair has been adopted worldwide for quay wall repair. Walhout holds ISO 9001:2015 certification through LRQA/UKAS and serves port operators, port-based industry, project developers and contractors, government and public corporations, defense and resilience organizations, legal and insurance firms, and NGOs.

Name

Walhout Group

Legal name

Walhout Group B.V.

Website

https://walhoutgroup.com

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

11–50 employees

Short description

Walhout Group is a family-owned Dutch consulting and engineering firm that delivers integrated strategy, data, and engineering services for maritime and hydraulic infrastructure, serving governments, port operators, contractors, and NGOs through three subsidiaries: Walhout Civil, Walhout Projects, and Walhout Maritime.

Ownership category

akta.pro rank

Headquarters

HQ city

Ridderkerk

HQ country

Netherlands

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Strategic Consulting and Engineering Services: Walhout Group generates revenue through project-based consulting and engineering engagements across strategy, data analytics, and engineering disciplines. Services span technical expertise, independent analyses, forensic engineering, design, supervision, and crisis management for maritime infrastructure projects. Revenue is derived from professional services fees on a project-by-project basis, with clients ranging from government agencies to private port operators and contractors.
2. Multi-Year Consultancy Contracts: The firm holds multi-year contracts with major clients such as Rijkswaterstaat (Dutch Directorate-General for Public Works and Water Management) for technical consultancy on maintenance of Dutch waterways, ports, and the Oosterscheldekering. These recurring contractual relationships provide ongoing revenue streams.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels6 records

Core offering

Walhout Group is a strategic consulting and engineering company delivering integrated solutions combining Strategy, Data, and Engineering for the construction and maintenance of waterways, ports, and maritime infrastructure. Through its three entities — Walhout Civil (consulting and engineering), Walhout Projects (monitoring, surveys and data analytics), and Walhout Maritime (project development) — the firm provides technical expertise, independent analyses, forensic engineering, design, supervision, and crisis management for large-scale maritime infrastructure projects worldwide.

Product overview

Walhout Group is a strategic consulting and engineering company comprising three complementary entities: Walhout Civil (consulting firm), Walhout Projects (data specialist), and Walhout Maritime (project developer). The company offers integrated solutions combining Strategy, Data, and Engineering services for maritime infrastructure. Walhout Civil provides consulting and engineering in geotechnics, port constructions, and digital systems; Walhout Projects specializes in monitoring activities, surveys, and data analytics for hydraulic infrastructure; and Walhout Maritime handles project development and management advice.

Differentiator

Problem solved

Functional benefit

Products and services

• Walhout Civil (Consulting and Engineering Services) Consulting and engineering firm specialized in solving and organizing hydraulic engineering challenges, providing services in geotechnics, port constructions, maritime infrastructure and digital systems for government agencies, port operators, and contractors.
• Walhout Projects (Monitoring, Survey and Data Gathering) Data specialist expert in state-of-the-art monitoring activities, surveys and data gathering in hydraulic and maritime infrastructure, developing new methods and monitoring techniques including OSINT, satellite, drone, and monitoring data analytics to support engineers.
• Walhout Maritime (Project Development and Management) Project developer carrying out specialist activities in hydraulic engineering and the maritime sector, providing project development, management advice and business operations support for complex maritime infrastructure programs.
• Strategy Services Strategic consulting including Port Strategy, Integrated Project Consulting, Supervision, Governance, Crisis Management, and Legal & Dispute Services for maritime infrastructure stakeholders.
• Data Services Digital services including Survey, Field Research, Monitoring & Control Systems, Open Source Intelligence (OSINT), Data Analytics, and R&D for maritime infrastructure analysis and engineering support.
• Engineering Services Engineering services including Geotechnical Services, Hydraulic & Port Engineering, Parametric Testing, Automation, and Forensic Engineering for maritime and hydraulic infrastructure projects.

Quantifiable outcome

• Green quays De Nieuwe Mark Breda: >€25M total project value, >€8.3M construction costs for quay elements
• +3 more outcomes

Named customers15 records

Segments6 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature5 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Netherlands Maritime University College Malaysia (NMUC Malaysia)coreStrategic or Co-development Partner · 1 September 2025In September 2025, Walhout Group signed a Memorandum of Understanding with several key maritime partners in Malaysia, including NMUC Malaysia. The agreement strengthens international cooperation in maritime engineering, coastal development, and knowledge exchange within the Southeast Asian maritime sector.
• PIANC (World Association for Waterborne Transport Infrastructure)coreStrategic or Co-development PartnerPIANC is the leading international organization in the field of waterborne transport infrastructure for ports, waterways, and coastal areas, founded in 1885. Walhout Group holds membership, underscoring its commitment to international developments in ports and waterborne infrastructure. PIANC brings together international experts, fosters knowledge exchange, publishes technical guidelines and reports, and organizes world-class conferences.
• GeotechniekminorStrategic or Co-development PartnerWalhout Group is a business member of the Geotechniek knowledge platform, the leading professional journal and knowledge platform for the civil engineering sector in the Netherlands and Belgium for 25 years. In the Netherlands, Geotechniek serves as the official publication of the Royal Netherlands Society of Engineers (KIVI), Department of Geotechnics.
• ecommitminorStrategic or Co-development PartnerEcommit BV is a leading Dutch specialist in the international carbon credit market. Walhout Group offsets carbon emissions from its services, activities, and projects through strategic investments in high-quality carbon credits via ecommit. Carbon offset projects include Mangalam Timber Products Limited in India (14,000 hectares reforestation), GreenTrees ACRE in North America (54,400 hectares), and Paulownia Plantations in Croatia.
• Promotion Council North Sea Port (PCNSP)minorStrategic or Co-development PartnerPCNSP serves as the ambassador of North Sea Port at national and international levels, strengthening public support and stakeholder engagement for the port region. Walhout Group is a member, promoting the port's strategic position and services of its members worldwide.
• Energy Port ZeelandminorStrategic or Co-development PartnerEnergy Port Zeeland is the leading platform connecting industry, government, and education in the offshore wind sector in Zeeland. Walhout Group participates to strengthen Zeeland's position as a hub for offshore wind energy and drive business, innovation, and workforce development.
• LRQA Group Limited (Lloyd's Register Quality Assurance)minorImplementation/ SI/ Consulting PartnerLRQA is the certification body through which Walhout Group holds ISO 9001:2015 certification, accredited by the United Kingdom Accreditation Service (UKAS). This certification reflects Walhout Group's dedication to quality and excellence across all areas of operation.

Scale indicators7 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• Witteveen+Bos: Independent Dutch engineering firm specializing in water, ports, waterways, and delta infrastructure. Highly comparable to Walhout Civil's maritime and hydraulic engineering focus, sharing Dutch public-sector clients like Rijkswaterstaat.
• Movares: Dutch engineering consultancy with established practices in infrastructure, civil structures, and asset management. Competes with Walhout on Dutch public-sector infrastructure and asset validation mandates.
• Royal HaskoningDHV: Large Dutch engineering consultancy with deep maritime, port, hydraulic, and water infrastructure practices — directly overlapping Walhout's core segments of port consulting, hydraulic engineering, and geotechnical services across the same Dutch and NW European client base.
• Iv-Groep (Iv-Infra): Dutch engineering consultancy focused on infrastructure, ports, and waterways with strong hydraulic and structural design capabilities — directly comparable to Walhout Civil's port and quay-wall design work.
• Deltares: Dutch applied research institute specializing in delta, coastal, and offshore engineering that also performs consulting work for the same Rijkswaterstaat and ministry clients. Comparable to Walhout in hydraulic-engineering research, monitoring, and policy advisory.
• Fugro: Dutch-headquartered global geotechnical and survey specialist operating ROVs, offshore vessels, and monitoring systems for marine site investigation — directly comparable to Walhout Projects' data-gathering, monitoring, and ROV/drone survey capabilities.

Broad incumbents

• Arcadis: Amsterdam-based global design, engineering, and management consultancy with a sizable water and maritime infrastructure practice. Overlaps Walhout on Dutch port and waterway work, but operates at vastly larger scale across many other verticals.
• Antea Group: International engineering and environmental consulting firm with a substantial Netherlands presence in infrastructure, water, and environment. Overlaps Walhout on water-related consulting while operating across multiple non-maritime verticals.
• Bureau Veritas: Global testing, inspection, and certification company with marine and offshore asset integrity services. Comparable to Walhout's certification-adjacent and asset-validation work for ports, quay walls, and maritime infrastructure.
• Sweco: European engineering consultancy with strong Dutch and Belgian presence (including acquired Lievense) in water, ports, and geotechnics. Competes with Walhout on Dutch civil and maritime engineering tenders while serving much broader infrastructure segments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/walhoutcivil

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 Walhout Group