What KlaassenGroep BV does

KlaassenGroep BV is a Dutch construction and real estate development firm founded in 1851, headquartered in Dinxperlo with a second regional office in Arnhem. The company develops and constructs residential, healthcare, educational, and commercial buildings, and provides renovation and maintenance services, with approximately 100 own employees and a network of subcontractors. Projects are secured primarily through public procurement, design & build selections, and long-term bouwteam (construction team) arrangements with institutional clients including housing corporations (Plavei, Sité Woondiensten, Veenvesters, Vryleve), healthcare operators (Woonzorg Nederland, Elver, Zorggroep Charim, Azora), and municipal governments. The firm also acts as an own-developer on select projects such as Stadsdok Doetinchem, where 61 units were pre-sold prior to completion.

Core technology centers on BIM-based design coordination (3D modeling, clash detection, lean planning) and prefab timber-frame (HSB) construction, complemented by sustainable building systems including geothermal heat, aquifer thermal energy storage (WKO), heat pumps, and the first-in-Netherlands deployment of SoundEnergy thermo-acoustic cooling at IKC Magenta in Delden. Circular/losmaakbaar (demountable) construction methods and NOM (Nul-op-de-Meter) expertise are positioned as differentiators in Dutch public tenders.

The business model is project-based and B2B-driven: revenue is earned through one-time construction contracts (design & build and bouwteam) plus developer-margin on own-developed units sold to private buyers or housing corporations. KlaassenGroep is privately held by the fifth generation of the Klaassen family with no external funding, no subsidiaries, and no disclosed M&A activity. Certifications include ISO 9001:2015, VCA** safety, Woningborg, BouwGarant, FSC, PEFC, and SBB Erkend Leerbedrijf, supporting eligibility for Dutch institutional tenders and quality guarantees to end buyers.

Name

KlaassenGroep BV

Legal name

KlaassenGroep B.V.

Website

https://klaassen.com

Company type

Private

Founded year

1851

Operating status

Operating

Short description

KlaassenGroep BV is a fifth-generation, family-owned Dutch construction and development firm founded in 1851, headquartered in Dinxperlo with a second office in Arnhem. It builds and renovates residential, healthcare, educational, and commercial buildings for housing corporations, care operators, and municipalities, with ~100 employees.

Ownership category

akta.pro rank

Headquarters

HQ city

Dinxperlo

HQ country

Netherlands

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction and Design & Build Contracts: KlaassenGroep generates revenue through project-based construction contracts, including design & build engagements where the company is responsible for both the architectural design and physical construction. Projects span residential (social housing, owner-occupied apartments, family homes), healthcare facilities, educational buildings, and commercial/industrial properties. Revenue is earned through one-time project fees, with projects ranging from small-scale renovations to large multi-unit developments.
2. Development and Own-Developed Projects: The company also acts as a real estate developer on certain projects (e.g., Stadsdok Doetinchem), investing in land acquisition and development and generating revenue through the sale of completed units. All 61 units in the Stadsdok project were sold prior to completion.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

KlaassenGroep BV is a construction and real estate development firm that develops and builds residential, healthcare, educational, and commercial buildings, and provides renovation and maintenance services across the Netherlands. The company delivers projects ranging from single-family homes and social housing developments to large healthcare facilities, schools, and commercial buildings, primarily serving housing corporations, healthcare organizations, educational institutions, and government bodies through Design & Build and bouwteam arrangements.

Product overview

KlaassenGroep BV is a construction and real estate development company offering integrated building services across multiple sectors. The company operates as a single unified offering under the KlaassenGroep brand rather than a platform-plus-modules architecture. Core service divisions include: Woningbouw (residential housing development), Zorg (healthcare construction), Onderwijs (education construction), Bedrijfshuisvesting (business facilities), and Renovatie (renovation services). Projects range from individual residential homes to large-scale mixed-use developments, healthcare complexes, schools, and commercial buildings. Notable named projects and concepts include GeWOON Groen Didam (sustainable wooden starter homes), Stadsdok Doetinchem (luxury apartments and villas), and Casa Vita Energieneutraal (energy-neutral housing concept). The company has approximately 100 employees with offices in Dinxperlo and Arnhem.

Differentiator

Problem solved

Functional benefit

Brands

• Klaassen Particuliere Woningbouw: A specialized division focused on private residential construction, with its own contact page at klaassenparticulierewoningbouw.com

Products and services

• Woningbouw (Residential Housing Development) Development and construction of residential housing including serial housing (seriematige woningbouw), housing concepts (woonconcepten), and private residential construction (particuliere woningbouw). Projects include apartments, single-family homes, and mixed-use developments across the Netherlands. Targeted at housing corporations, developer-investors, and private buyers.
• Zorg (Healthcare Construction) Construction of healthcare facilities including residential care centers, nursing homes, and specialized care housing for elderly, dementia, intellectual disability, and psychiatric care populations. Targeted at healthcare organizations and elderly care providers such as Woonzorg Nederland, Elver, Zorggroep Charim, Azora, Careaz, GGNet, and Bartiméus.
• Onderwijs (Education Construction) Construction and renovation of educational institutions including primary schools, secondary schools, kindergartens, and multifunctional educational centers (IKC/Integraal Kind Centrum). Targeted at municipalities, school boards, and educational organizations, with projects meeting Frisse Scholen (Fresh Schools) standards.
• Bedrijfshuisvesting (Business Facilities) Development and construction of commercial buildings, offices, warehouses, and business parks for private companies. Targeted at commercial and industrial clients such as Nathan, SABA, Decathlon, Mapei, Van Raam, and Contour.
• Renovatie (Renovation Services) Renovation and modernization of existing buildings, including utility building renovation (renovatie utiliteitsbouw) and residential renovation (renovatie woningen). Services include sustainability upgrades, energy label improvement (e.g., D to B label upgrades), and restoration of historic properties. Targeted at owners of aging building stock across housing, healthcare, education, and commercial sectors.
• Casa Vita Energieneutraal (Energy-Neutral Housing Concept) A reusable energy-neutral housing concept applied to residential developments, where each home generates its own energy on-site through integrated solar PV, heat pumps, balanced ventilation with heat recovery, and high-performance insulation. Targeted at housing corporations and developer-investors seeking net-zero operational cost housing.
• Stadsdok Doetinchem (Self-Developed Residential Project) Self-developed luxury residential project combining 45 apartments and 16 urban villas with approximately 300 m² of commercial space in a modern industrial design. KlaassenGroep acts as developer-investor, handling land acquisition, development, construction, and direct sale of completed units to private buyers and developer-investors.

Quantifiable outcome

• IKC Magenta Delden achieved Frisse Scholen Klasse A, EPC of -0.002, GPR of 9.1, and energy label A++++. The project cost €1,650/m² BVO excl. VAT (excluding innovations), demonstrating that top sustainability scores can be achieved within a tight budget.
• +4 more outcomes

Named customers10 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

14 partnerships are on record, tiered core and minor.

• Architectengroep GelderlandcoreStrategic or Co-development PartnerPart of the consortium that won the Design & Build contract for 34 homes at Bloemenbuurt Didam for housing corporation Plavei. Architectengroep Gelderland provides architectural design services within the consortium alongside KlaassenGroep (construction) and Rouweler Installatietechniek (installations).
• Rouweler InstallatietechniekcoreStrategic or Co-development PartnerInstallation engineering partner in multiple bouwteam and Design & Build projects. Works alongside KlaassenGroep in the consortium for the Bloemenbuurt Didam project, providing mechanical and electrical installation expertise.
• PremoduminorStrategic or Co-development PartnerDevelopment partner for the GeWOON Groen Didam project, a sustainable housing development of 15 prefab starter homes. Premodu contributes to the development of the project alongside KlaassenGroep and SACON Architecten.
• SACON ArchitectenminorStrategic or Co-development PartnerArchitectural design partner for the GeWOON Groen Didam project, contributing to the design of 15 sustainable prefab starter homes with SACON providing architectural services.
• Hooiland GroepcoreStrategic or Co-development PartnerDevelopment and construction partner for the Stationskwartier Doetinchem project, a joint venture with KlaassenGroep to develop 93 homes including a 10-story residential tower adjacent to Doetinchem station.
• Bouwkundig teken- en adviesburo MILOminorStrategic or Co-development PartnerArchitectural partner for the 15 Casa Vita homes at De Wegwijzer in Dinxperlo. MILO provided building design and advisory services for the project incorporating design elements from the former primary school.
• IAA ArchitectencoreStrategic or Co-development PartnerArchitectural design partner on multiple major healthcare projects including De Bettekamp (Varsseveld) for Azora and various Elver care facilities. IAA Architecten provides architectural design in close collaboration with KlaassenGroep.
• Wassink InstallatiecoreStrategic or Co-development PartnerInstallation engineering partner on multiple healthcare projects including De Bettekamp (Varsseveld) and Elver facilities in Nieuw-Wehl and Arnhem. Wassink Installatie provides mechanical and electrical design and installation services in bouwteam arrangements with KlaassenGroep.
• Op Zoom ArchitectenminorStrategic or Co-development PartnerArchitectural design partner for the 22 apartments at Lookwartier Doetinchem (Ruimzichtlaan project for Sité) and for the Saronix location under the same Sité commission.
• SAB (Adviseurs in Ruimtelijke Ontwikkeling)minorStrategic or Co-development PartnerSpatial planning advisors for the Design & Build commission of 56 homes at Saronix and Lookwartier in Doetinchem for Sité Woondiensten. SAB provided advisory services in the winning selection procedure.
• RoosRos ArchitectencoreStrategic or Co-development PartnerArchitectural design partner for IKC Magenta in Delden, one of the most sustainable children's centers in Europe. RoosRos designed the award-winning NOM building alongside KlaassenGroep and Rouweler Installateurs.
• CNB Climate Neutral BuildingminorStrategic or Co-development PartnerAdvisory partner for IKC Magenta Delden, providing guidance on climate-neutral building practices as part of the first innovation partnership in European utility construction.
• Zorggroep CharimcoreStrategic or Co-development PartnerClient and strategic partner for the Amandelpark project in Zeist (136 apartments for intensive care). The project is being delivered under a bouwteamovereenkomst (construction team agreement) with Charim.
• Woonzorg NederlandcoreStrategic or Co-development PartnerClient and strategic partner for Vitaal Centrum Duiven (41 apartments and commercial spaces). The project is commissioned by Woonzorg Nederland, with whom KlaassenGroep collaborates closely on design and execution.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Market position

Weaknesses5 records

Competitive moat5 records

Customer concentration

• LinkedInlinkedin.com/company/klaassengroep-bv

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 KlaassenGroep BV