Croon Elektrotechniek B.V.

What Croon Elektrotechniek B.V. does

Croon Elektrotechniek B.V., operating commercially as Croonwolter&dros, is a Netherlands-headquartered technical engineering and systems integration company founded in 1875, with approximately 3,000 professionals distributed across five regional offices (Rotterdam HQ plus Amsterdam, Apeldoorn, Dordrecht, and Eindhoven). The firm is privately held under TBI Holdings B.V., a collective of technical companies whose sole shareholder is an independent foundation, which means profits are reinvested rather than distributed externally. The company operates exclusively within the Dutch market.

The company designs, develops, implements, manages, and maintains intelligent technical systems for buildings and infrastructure, spanning electrical installations, mechanical (HVAC) systems, high-voltage substations (up to 380 kV), tunnel systems, and smart building automation, supported by a dedicated asset management brand (4AMS). Core vertical markets include energy transmission and new energy, healthcare, civil infrastructure (tunnels, bridges, water), data centers, commercial real estate, leisure, education, water, public sector, and utility housing. Notable delivered projects include the TenneT Tilburg 380 kV high-voltage station, the Papendrechtsebrug for Rijkswaterstaat, the Binnenhof renovation, Keolis electric bus charging infrastructure, and Radboud UMC technical installations. The company holds the CO2 Prestatieladder Niveau 5 certification (highest level, valid through January 2028), positioning it favorably on sustainability-weighted Dutch public tenders.

Croonwolter&dros monetizes through project-based installation contracts won via competitive tendering, supplemented by recurring service and maintenance agreements under the 4AMS umbrella and project management services. Go-to-market is direct enterprise field sales targeting government, semi-government, utility, healthcare, and large private clients, with no public or SMB distribution channel and no disclosed productized pricing. Mark van Wordragen assumed the role of statutory director/chairman on May 18, 2026, succeeding Piet Jan Heijboer.

Name

Croon Elektrotechniek B.V.

Legal name

Croonwolter&dros B.V.

Website

https://croonwolterendros.nl

Company type

Private

Founded year

1875

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Croon Elektrotechniek B.V. (operating as Croonwolter&dros) is a Netherlands-based technical engineering firm with 3,000+ professionals, founded in 1875, that designs, installs, and maintains integrated electrical, mechanical, and high-voltage systems for energy, healthcare, data center, infrastructure, and public-sector clients across the Netherlands.

Ownership category

akta.pro rank

Product category

Technical Engineering and Installation Services

NAICS

Power and Communication Line and Related Structures Construction (237130), Computer Systems Design and Related Services (54151), Electric Power Distribution (221122)

SIC

Services-Computer Integrated Systems Design (7373), Switchgear & Switchboard Apparatus (3613), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Building Management & Facility Control Systems (BMS/BAS, Power Monitoring, EPMS) (EUAEAFAJ)

akta.pro secondary industries

Control Room HMI/Visualization, Alarm & Event Management (EUADAEAJ), DER Management Systems (DERMS) & Virtual Power Plants (VPP) (EUADAPAD)

Keywords

• Electrotechnical installations
• Building technical systems
• High-voltage infrastructure
• Mechanical installations
• Asset management services

Headquarters

HQ city

Rotterdam

HQ country

Netherlands

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Installation Projects: Design, development, implementation, and maintenance of complex technical installations for buildings and infrastructure including electrical systems, mechanical installations, and high-voltage stations
2. Service and Maintenance Contracts: Ongoing maintenance, asset management, and service contracts ensuring continued operation and optimization of installed technical systems
3. Project Management Services: Technical project management for complex infrastructure and building projects from conception through completion

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

Croonwolter&dros designs, develops, implements, manages, and maintains intelligent technical systems for buildings and infrastructure. Its services span electrical installations (power distribution, lighting, high-voltage substations up to 380 kV), mechanical (HVAC) installations, smart building automation and asset management (4AMS), tunnel and infrastructure systems, and energy transition solutions. Offerings are delivered as end-to-end project contracts and ongoing service and maintenance agreements for enterprise and government clients.

Product overview

Croonwolter&dros operates as a technical engineering services company offering integrated electrotechnical and mechanical installation solutions. The portfolio includes technical building installations, high-voltage systems, smart building/asset management (4AMS), tunnel systems, and energy transition solutions. Services span design, development, implementation, management, and maintenance phases. The company serves diverse markets including commercial real estate, data centers, energy, healthcare, infrastructure, and public sector.

Differentiator

Problem solved

Functional benefit

Products and services

• Technical Building Installations Design, development, implementation, management, and maintenance of intelligent technical systems for buildings and infrastructure, combining electrical and mechanical engineering into integrated solutions for enterprise, government, and healthcare clients.
• Electrotechnical Systems Electrical installation services covering power distribution, lighting, and electrical infrastructure for commercial, industrial, healthcare, and infrastructure applications.
• Mechanical Installations (Werktuigbouwkundige Installaties) HVAC and mechanical installation services for buildings and industrial facilities, including climate control and mechanical infrastructure.
• High Voltage Systems High-voltage electrical systems including substations up to 380 kV and power transmission infrastructure for energy sector clients such as TenneT and grid-strengthening programs.
• Smart Buildings & 4AMS Asset Management & Services Intelligent building systems and asset management services, including the proprietary 4AMS program, designed to optimize performance, longevity, and energy use of installed technical systems across the building lifecycle.
• Tunnel and Civil Infrastructure Systems Technical systems for tunnels, bridges, and other civil infrastructure, including safety systems, control systems, and energy-neutral solutions for projects such as the Papendrechtsebrug.
• Energy Transition Solutions Solutions supporting the energy transition, including sustainable energy sources, smart energy systems, and grid-strengthening projects such as the Zuidplaspolder high-voltage substation program in South-Holland.

Quantifiable outcome

• 49% CO2 reduction target by 2030 compared to 2017 baseline
• +1 more outcomes

Named customers6 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

Feature3 records

Partnerships

One partnership is on record.

• TBI Holdings B.V.coreStrategic or Co-development PartnerCroonwolter&dros is part of TBI, a collective of technical companies with an independent foundation as sole shareholder. Profits are largely reinvested in innovation, talent development, and societal projects. TBI provides shared services including ICT, HR, and learning management systems.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Alewijnse: Alewijnse is a Dutch electrical systems integrator delivering industrial automation, electrical installations and marine/industrial power systems — comparable to Croonwolter&dros' electrotechnical and high-voltage offerings.
• Unica: Unica is a large Dutch technical services and installation company offering electrical, mechanical, security and building automation solutions — direct, head-to-head competitor for Croonwolter&dros across most of the same Dutch sectors (commercial real estate, healthcare, data centers, public).
• SPIE Nederland: SPIE's Dutch operation delivers multi-technical services (electrical, HVAC, fire safety, instrumentation) for buildings and infrastructure — comparable in service breadth, customer type and project-based delivery to Croonwolter&dros in the Netherlands.
• BAM Bouw en Techniek: BAM's installatiebedrijf division is one of the largest Dutch technical installers for buildings and infrastructure, including electrical, mechanical and high-voltage work — directly comparable to Croonwolter&dros on customer mix, scale, and sustainability-driven tenders.
• Van Dorp: Van Dorp is a Dutch technical installation and facility services company with nationwide coverage in electrical, mechanical and building services — closely comparable to Croonwolter&dros on mid- and large-scale building and infrastructure installations.
• Kropman Installatietechniek: Kropman is a Netherlands-based technical installer for electrical, mechanical and building automation systems — overlapping with Croonwolter&dros across healthcare, commercial real estate and industrial clients.
• A. Hak: A. Hak is a Dutch infrastructure specialist focused on cables, pipelines and electrical systems, including high-voltage and grid connections — directly comparable for Croonwolter&dros' energy and high-voltage substation line of work.

Broad incumbents

• EQUANS Nederland: EQUANS (Bouygues group) provides multi-technical services across buildings and energy infrastructure in the Netherlands — comparable in scope but as a multinational incumbent covering building and energy transitions markets where Croonwolter&dros also competes.
• ENGIE Services Nederland: ENGIE Services operates a broad technical services portfolio in the Netherlands covering HVAC, electrical, facility management and energy solutions — overlaps with Croonwolter&dros across most verticals but at a broader, multinational scale rather than a Dutch specialist footprint.
• Heijmans: Heijmans is a Dutch construction and infrastructure group with a substantial technical installations arm — competes with Croonwolter&dros on integrated building and infrastructure tenders in the Netherlands, especially public works.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

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Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Croon Elektrotechniek B.V.