What Janssen de Jong does

Janssen de Jong, operating under the JAJO brand since a 2020 rebranding, is a privately held Dutch construction and real estate group headquartered in 's-Hertogenbosch, Netherlands. Founded in 1939, the group operates as a holding entity for approximately 35 wholly-owned subsidiaries and employs 1,219 people across 8 countries, including the Netherlands, Poland, and several Caribbean markets (Curaçao, Aruba, Bonaire, Sint Maarten, Saba, Sint Eustatius, and Anguilla). The group organizes its offering into five integrated service pillars — Develops, Constructs, Maintains, Restores, and Harvests — that span the entire real estate lifecycle, from greenfield project development and turnkey construction through maintenance, heritage restoration, and circular material harvesting (urban mining).

The group's technological core is its circular construction stack, which includes 3D concrete printing (3D Concrete / Betonindustrie Brievengat, the first such operation in the Caribbean), proprietary circular concrete (developed jointly by Hercuton and Preco), urban mining capability through subsidiary New Horizon, and a 360-degree building scan technology used to map reusable materials. It also operates timber and bio-based construction lines (Woody Builders, REVOLVE, Houtlab, and the carpentry factory Timmerfabriek Gebrs Bos). Revenue is generated project-by-project through fixed-price construction contracts, public tenders, and private commissions across four primary verticals: housing corporations, government and public sector, commercial and industrial real estate, and a secondary residential segment for private individuals. Customer acquisition combines enterprise field sales with tender-driven bidding, while channel visibility is supported by event presence at PROVADA and MIPIM, LinkedIn-driven content marketing, sailing sponsorships, and an internal talent development program (JAJO Academy).

Name

Janssen de Jong

Legal name

JAJO B.V.

Website

https://jajo.com

Company type

Private

Founded year

1939

Operating status

Operating

Headcount range

11–50 employees

Short description

Janssen de Jong (JAJO) is a privately held Dutch construction and real estate group of approximately 35 subsidiaries and 1,219 employees, providing circular development, construction, maintenance, restoration, and material harvesting services across the Netherlands, Poland, and the Caribbean.

Ownership category

akta.pro rank

Product category

Construction and Real Estate Services

NAICS

Corporate, Subsidiary, and Regional Managing Offices (551114), Real Estate Property Managers (53131)

SIC

General Bldg Contractors - Residential Bldgs (1520), Land Subdividers & Developers (No Cemeteries) (6552)

akta.pro primary industry

Circularity Consulting & Program Management (EPR, Design-for-Circularity, LCA) (EUAIANAH)

akta.pro secondary industry

Building Information Modeling (BIM) & Digital Design Services (BPAHAKAK)

Keywords

• Sustainable construction services
• Real estate development
• Property maintenance and renovation
• Circular construction solutions
• Building restoration services

Headquarters

HQ city

Son En Breugel

HQ country

Netherlands

HQ region

Europe

Offices11 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Infrastructure, Marketing or Sales

Revenue model

1. Construction and Real Estate Development: JAJO's subsidiaries engage in project development, construction, renovation, restoration, and maintenance of residential and commercial real estate. Revenue is generated through fixed-price project contracts, public tenders, and private commissions. The group covers the entire real estate lifecycle from development and construction to maintenance, restoration, and material harvesting (circular demolition).

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

JAJO is a construction and real estate group providing five integrated lifecycle services — Develops, Constructs, Maintains, Restores, and Harvests — for residential, commercial, industrial, and infrastructure projects. The group delivers these services through 35 wholly-owned subsidiaries operating in the Netherlands, Poland, and Caribbean, focusing on circular, sustainable construction practices including 3D concrete printing, urban mining, circular concrete, and timber building systems for housing corporations, governments, and commercial real estate clients.

Product overview

JAJO is a construction group comprising five integrated service pillars (Develops, Constructs, Maintains, Restores, and Harvests) supported by over 35 subsidiary brands operating across the Netherlands, Poland, and Caribbean. The group employs approximately 1,219 people across 8 countries and has been operating since 1939. Core brands include Janssen de Jong (residential housing), Blink (real estate development), Hercuton (commercial construction), OnderhoudPlus (maintenance), Koninklijke Woudenberg (heritage restoration), New Horizon (circular harvesting), REVOLVE (sustainable concept development), Woody Builders (wooden construction), Meesters In (stone restoration), Van der Vegt (metal restoration), Ocmer (Poland industrial construction), Van Zanten (Rotterdam residential), Windward Roads (Caribbean infrastructure), Realconomy (area development), and 3D Concrete (3D printing). The group also offers innovation tools such as the Duurzaamheidsconfigurator and Circulaire Menukaart. Services span the entire real estate lifecycle from development through construction, maintenance, restoration, and material harvesting, unified under the 'Closing the Circle Together' mission focused on circular economy principles.

Differentiator

Problem solved

Functional benefit

Products and services

• JAJO Ontwikkelt (JAJO Develops) Sustainable real estate development service covering residential and commercial projects, from initial concept through design thinking processes involving clients, stakeholders, and communities to achieve 100% happiness and 0% CO2 goals. Targets housing corporations, municipalities, and investors through subsidiaries Blink, Realconomy, and REVOLVE.
• JAJO Bouwt (JAJO Constructs) Construction services spanning residential (row houses, semi-detached, detached) and commercial buildings (warehouses, logistics halls) across the Netherlands, Poland, and Caribbean, emphasizing sustainable and circular construction with materials reuse. Delivered by construction subsidiaries including Janssen de Jong, Hercuton, Ocmer, Van Zanten, and Woody Builders.
• JAJO Onderhoudt (JAJO Maintains) Property maintenance services including preventive and corrective maintenance, renovation, sustainability upgrades, and building transformation for housing corporations, healthcare institutions, and commercial real estate managers. Delivered primarily through OnderhoudPlus with national coverage in the Netherlands and 150+ professionals.
• JAJO Herstelt (JAJO Restores) Restoration and renovation services specializing in cultural heritage monuments and historical buildings, preserving characteristic elements while upgrading to modern standards. Delivered via subsidiaries Koninklijke Woudenberg (over 225 years of heritage restoration), Meesters In (stone restoration and reproduction), and Van der Vegt (over 100 years of steel and metalwork restoration).
• JAJO Oogst (JAJO Harvests) Circular material harvesting service that recovers reusable materials from demolition sites, promoting urban mining and sustainable material reuse in new construction projects. Delivered by New Horizon using proprietary 360-degree building scan technology, the Harvest Collective supplier network, and exclusive collaboration with Urban Mine (Rutte Groep) extended to 2030.
• Ocmer Industrial Construction (Poland) One of the 10 largest industrial construction companies in Poland, realizing high-quality business premises with steel, concrete, or hybrid construction since 1994. Offers total solution packages from design through turnkey delivery, handling all permits and official formalities for industrial construction clients from its Łódź base.
• Windward Roads Caribbean Infrastructure Infrastructure and civil engineering company operating in St. Maarten, Saba, and St. Eustatius since 1987, offering complete infrastructure, hydraulic engineering, buildings, and concrete/asphalt production. The first company in its sector to be ISO-NEN 9001-2015 certified on Sint Maarten.
• 3D Concrete Printing (Caribbean) 3D concrete printing services introduced in the Caribbean (first deployment of the technology in the region), bringing innovative solutions and affordable housing to the market through Betonindustrie Brievengat in Curaçao. Targets Caribbean housing shortages with additive concrete manufacturing.
• Woody Builders Sustainable Wooden Buildings Sustainable wooden business premises specialist creating CO2-storing buildings from sustainable forestry timber, covering the entire process from design to realization. Supported by Houtlab with CSC (Certified Sustainable Chains) certification.
• New Horizon Circular Harvesting Advisory Circular harvesting knowledge partner and catalyst, providing advice, connections, and market influence to make construction material reuse measurable, feasible, and profitable. Offers the proprietary 360-degree building scan that creates detailed reports and impact analyses mapping available materials and their value for circular harvesting scenarios, and produces Urban Mining Concrete toward CO2-neutral concrete.

Quantifiable outcome

• JAJO aims for CO2 neutrality by 2028 (CO2-neutraal in 2028)
• +2 more outcomes

Named customers12 records

Segments5 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

Eleven partnerships are on record, tiered core and minor.

• PROVADAcoreGTM or Marketing PartnerPROVADA is a major Dutch real estate trade fair. JAJO has been a participant and sponsor, and the partnership has been extended through 2028. JAJO uses PROVADA for customer acquisition, brand visibility, and industry networking.
• Kingspan UnidekcoreStrategic or Co-development PartnerPreferred Supplier Agreement between JAJO and Kingspan Unidek, a manufacturer of roof and wall systems. The partnership supports JAJO's sustainable construction initiatives with high-performance building envelope solutions.
• Van Zanten BouwcoreStrategic or Co-development PartnerJanssen de Jong Bouw and Van Zanten Bouw (both JAJO subsidiaries) have strengthened their cooperation, coordinating more closely on residential construction projects in the Netherlands.
• BCI GebouwcoreStrategic or Co-development PartnerJAJO and BCI Gebouw have bundled their forces for CO2-free real estate. The partnership focuses on sustainable development and circular construction to achieve CO2-neutral building outcomes.
• Urban Mine (Rutte Groep)coreStrategic or Co-development PartnerNew Horizon Urban Mining (a JAJO company) extended its exclusive collaboration with Urban Mine (Rutte Groep) until 2030. This partnership is central to JAJO's circular economy model for harvesting and reusing construction materials.
• WienerbergercoreStrategic or Co-development PartnerThe collaboration between Wienerberger and New Horizon led to the development of the circular CicloBrick, a brick product made from recycled materials. This represents a product innovation in circular building materials.
• PreZerocoreStrategic or Co-development PartnerJAJO and PreZero (a waste management company) have partnered to help JAJO achieve its waste reduction and circular economy goals, specifically targeting afvaldoelstellingen (waste reduction targets).
• PrecocoreStrategic or Co-development PartnerSubsidiary Hercuton and Preco (precast concrete producer) have partnered on sustainable ambition with circular concrete, working together on projects that utilize recycled concrete materials.
• KNRM (Koninklijke Nederlandse Redding Maatschappij)minorGTM or Marketing PartnerJAJO has a multi-year partnership with the KNRM, the Dutch lifeboat organization. This is a sponsorship/partnership supporting maritime safety and JAJO's connection to the ocean (reflected in the group's sailing sponsorships).
• StihominorStrategic or Co-development PartnerJAJO and Stiho have taken the next step in the sustainability challenge, collaborating on sustainable building materials and practices in the construction supply chain.
• SKOOBminorStrategic or Co-development PartnerJAJO has a partnership with SKOOB (Schade Keurmerk voor Onderhoud en Ondersteunende Bouw), a quality mark for maintenance and construction, supporting quality assurance across JAJO's maintenance operations.

Scale indicators7 records

Recent moves8 records

Expansion highlights7 records

Broad incumbents

• Besix: Besix is a Belgian-headquartered international construction group with operations across Europe, Middle East, and Africa, active in buildings, infrastructure, and marine works. Comparable to JAJO on multi-geography construction services and ambition for sustainable building methods.
• VolkerWessels: VolkerWessels is a large Dutch construction group with operating companies across construction, real estate development, and infrastructure including telecom and energy networks. The Reggeborgh-owned group competes with JAJO across residential development, property, and infrastructure segments in the Netherlands.
• Royal BAM Group: Royal BAM Group is a major Dutch construction and engineering company operating across construction, property, and infrastructure with a strong sustainability agenda. It is comparable to JAJO as a Dutch-headquartered construction platform, though substantially larger and more diversified across public infrastructure and PPP concessions.

Direct peers

• Heijmans: Heijmans is a Dutch listed construction company with operations in property development, residential construction, non-residential construction, and infrastructure/installation. Heijmans is JAJO's closest comparable on residential housing corporation relationships, sustainability positioning, and integrated Dutch construction services.
• TBI Holdings: TBI Holdings is a Dutch private construction and development holding with operating subsidiaries focused on residential construction, technical installations, and infrastructure. Its multi-subsidiary holding structure and Dutch housing corporation exposure make it structurally similar to JAJO's model.
• Dura Vermeer: Dura Vermeer is a Dutch family-owned construction and real estate development group active in residential, commercial, and civil construction. It competes with JAJO on Dutch housing development, woningcorporatie renovation, and circular construction innovation.
• Ballast Nedam: Ballast Nedam is a Dutch construction and development company focused on residential, commercial, and infrastructure projects with growing emphasis on circularity and modular construction. Comparable to JAJO on mid-sized Dutch construction scale, housing development, and circular ambition.

Emerging players

• KWS Infra (VolkerWessels subsidiary): KWS Infra is a Dutch road construction and asphalt production specialist, comparable to JAJO's Caribbean infrastructure subsidiaries (Windward Roads, Statia Roads & Construction, Asfalt Centrale Curaçao) for road and asphalt capabilities in small/medium markets.
• Mecalac (formerly Ahlborg Construction / Skanskasverige peers not applicable): Ocmer is JAJO's own Polish industrial construction subsidiary (top-10 in Poland), illustrating the type of regional industrial construction player JAJO competes with and has acquired. Comparable regional European industrial construction firms include Unibep and Erbud.

Regional players

• Strukton: Strukton is a Dutch construction and infrastructure group focused on civil engineering, rail, and buildings, with sustainability as a strategic theme. It is comparable to JAJO's infrastructure-oriented subsidiaries (Windward Roads, Statia Roads & Construction, Saba Roads & Construction) and competes for Dutch infrastructure tenders.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCpXOP1scicfYk1tnfYnh9vg
• Facebookfacebook.com/jajogroep
• LinkedInlinkedin.com/company/janssen-de-jong-groep
• Instagraminstagram.com/jajogroep
• Xx.com/jajogroep

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 records

Subsidiaries35 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 Janssen de Jong