Bonarius Service B.V.
Bonarius Service B.V. is a Dutch private limited company (besloten vennootschap) registered with the Netherlands Chamber of Commerce (KvK) under number 34057780. The company is registered at Zwanenburgerdijk 291, 1161 NL Zwanenburg, in the municipality of Haarlemmermeer, Netherlands, and KvK-linked registry data shows an incorporation date of 9 August 1984. The company’s KvK status is listed as active.
Bonarius Service B.V. is classified under SBI code 43222 (installation of heating and air-handling equipment) and provides servicing, maintenance and inspection of central heating installations. It trades under several registered names, including Bonarius Bedrijven, Bonarius Midden-Nederland and Bonarius Oost-Nederland. Within the Dutch heating and building-installation sector, the company services central heating systems under long-term maintenance contracts for housing corporations, property investors and private homeowners.
Bonarius Service B.V. operates from its registered office in Zwanenburg and is part of a wider group of installation businesses trading under the Bonarius name, with additional service locations reported in Den Haag, Utrecht and Arnhem. The company is not listed on any stock exchange.
Commercial company-data providers report Bonarius Service B.V.’s workforce at between 21 and 99 employees, with figures varying by source and retrieval date; no officially filed employee count was located for the legal entity itself. The company’s website is bonarius.com.
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Shareholders
Shareholders of Bonarius Service B.V.
Company-registry data aggregated from the Netherlands Chamber of Commerce (KvK) identifies Bonarius Holding B.V. (KvK 34249656), registered at the same address (Zwanenburgerdijk 291, Zwanenburg), as the disclosed shareholder of Bonarius Service B.V. No shareholding percentage is publicly disclosed for this holding, and no other direct shareholders were identified in the sources reviewed. This information was retrieved on 24 September 2026 and reflects the current KvK-linked commercial record rather than a dated shareholder filing, so an exact "as of" date for the holding itself could not be confirmed.
Data availability
Shareholder disclosure for Bonarius Service B.V. is major shareholders only: a parent company is identified through a commercial KvK data reseller, but the underlying KvK extract, shareholding percentage and share class are not publicly available. Ultimate beneficial ownership information could not be independently verified, since public access to the Dutch UBO register has been restricted to authorised parties since the Court of Justice of the EU’s November 2022 ruling; company press materials separately describe individuals as owners of the wider "Bonarius" business, but this could not be confirmed as a formal UBO determination for this specific legal entity.
Sources
- Company.info, "Bonarius Service B.V." (companyinfo.nl), retrieved 24 September 2026
- Company.info, "Bonarius Holding B.V." (companyinfo.nl), retrieved 24 September 2026
- Drimble.nl, "Bonarius Holding B.V." company profile, retrieved 24 September 2026
Officers
Directors and officers of Bonarius Service B.V.
Company-registry aggregator records linked to the KvK show one currently active authorised representative (gevolmachtigde) of Bonarius Service B.V., Robin de Haan, appointed 1 June 2023, and two former authorised representatives: Arjan Wierenga (appointed 1 November 2015, authorisation ended 1 June 2018) and Leo Engelhardt (appointed 1 November 2015, authorisation ended 22 February 2023). A gevolmachtigde is an authorised signatory role under Dutch company law and is distinct from a statutory managing director (bestuurder); no statutory director record could be independently verified for this specific legal entity in the sources reviewed. Nationality is not disclosed in any source reviewed. The underlying registry extract date could not be confirmed, so the information should be treated as current to the retrieval date of 24 September 2026.
Recent officer changes
- Robin de Haan appointed as authorised representative (gevolmachtigde), effective 1 June 2023, coinciding with a company announcement naming him Chief Technology Officer within the group’s management team (source: bonarius.com).
- Leo Engelhardt’s authorisation ended 22 February 2023, following his death; trade press reported Bob Heil taking on the related commercial-director role within the group (source: Installatie.nl).
- Arjan Wierenga’s authorisation ended 1 June 2018.
Data availability
Officer information for Dutch companies is drawn from the KvK trade register; the sources reviewed here are commercial aggregators of that register and show only authorised representatives, not a complete statutory director history. Nationality and country of residence are not disclosed in any source reviewed.
Sources
- Bonarius.com, "Robin de Haan aangesteld als CTO van Bonarius", retrieved 24 September 2026
- Installatie.nl, "Nieuwe directieleden voor Bonarius", retrieved 24 September 2026
- Aggregated KvK-linked officer records (search-indexed company registry data), retrieved 24 September 2026
Group Structure
Group structure of Bonarius Service B.V.
Bonarius Service B.V. is not an independent company. Company.info’s KvK-linked registry data identifies its immediate parent as Bonarius Holding B.V. (KvK 34249656), a financial holding company (SBI 64210) registered at the same address in Zwanenburg. Bonarius Holding B.V.’s own KvK-linked record shows Bonarius Vastgoed B.V. as its general director (algemeen directeur) since 2006; however, evidence of a verified ultimate parent above Bonarius Holding B.V. was not found. Company.info’s profile of Bonarius Holding B.V. lists Bonarius Vastgoed B.V. (KvK 34222673) among its group companies alongside Bonarius Service B.V., supporting a sister-company relationship between the two. Ownership and voting percentages are not disclosed in any source reviewed. Data as retrieved 24 September 2026.
Verified corporate relationships
| Entity | Country | Registration number | Relationship | Ownership | Status | Information date |
|---|---|---|---|---|---|---|
| Bonarius Holding B.V. | NL | 34249656 | Immediate parent | Not disclosed | Active | 2026-09-24 |
| Bonarius Vastgoed B.V. | NL | 34222673 | Sister company | Not disclosed | Active | 2026-09-24 |
Data availability
Corporate-linkage information for Bonarius Service B.V. is partial: the immediate parent is identified through a commercial KvK data reseller without ownership percentages or a filing date, and no reliable evidence of an ultimate parent beyond Bonarius Holding B.V. was located.
Sources
- Company.info, "Bonarius Service B.V." (companyinfo.nl), retrieved 24 September 2026
- Company.info, "Bonarius Holding B.V." (companyinfo.nl), retrieved 24 September 2026
Registry feed — rows exactly as filed with Netherlands Chamber of Commerce (KvK), including entries the profile above does not cover.
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Frequently Asked Questions
What does Bonarius Service B.V. do?
Bonarius Service B.V. (KvK 34057780) is a Dutch installation company based in Zwanenburg that services, maintains and inspects central heating installations, trading as Bonarius Bedrijven.
Who owns Bonarius Service B.V.?
Bonarius Holding B.V. is disclosed as the company's parent/shareholder; the exact shareholding percentage is not publicly disclosed.
Who is Bonarius Service B.V.'s UBO (Ultimate Beneficial Owner)?
No Ultimate Beneficial Owner (UBO) data is recorded for Bonarius Service B.V.; access to beneficial-ownership data in this jurisdiction is governed by its own register rules.
What is Bonarius Service B.V.'s company registration number?
Bonarius Service B.V.'s registration number is 34057780, filed with Netherlands Chamber of Commerce (KvK) in Netherlands. Its current status on the register is active.
Is Bonarius Service B.V. still an active company?
Bonarius Service B.V.'s status on Netherlands Chamber of Commerce (KvK) is listed as active.
What is Bonarius Service B.V.'s registered address?
The registered address on file for Bonarius Service B.V. is Zwanenburg, Netherlands.
What legal structure is Bonarius Service B.V. registered as?
Bonarius Service B.V. is registered as a Private limited company (Ltd.) in Netherlands.
Is Bonarius Service B.V. listed on a stock exchange?
Bonarius Service B.V. is a privately held company and is not listed on any stock exchange.
Who are the officers/directors of Bonarius Service B.V.?
The company's disclosed authorised representative (gevolmachtigde) is Robin de Haan, appointed 1 June 2023; predecessors Arjan Wierenga and Leo Engelhardt left the role in 2018 and 2023 respectively.
Does Bonarius Service B.V. have a parent company or subsidiaries?
Bonarius Service B.V. is part of the Bonarius group; its immediate parent is Bonarius Holding B.V., with Bonarius Vastgoed B.V. identified as a related sister company.
Can Zavia monitor changes to Bonarius Service B.V.'s ownership over time?
This profile reflects a point-in-time snapshot from Netherlands Chamber of Commerce (KvK). Zavia's monitoring API can track changes to Bonarius Service B.V.'s registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access Bonarius Service B.V.'s data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including Netherlands, so records like Bonarius Service B.V.'s registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from Netherlands Chamber of Commerce (KvK) and was last synced on 25 September 2026.