Kalweit ITS GmbH
Kalweit ITS GmbH is a private limited company (GmbH) registered in Germany under HRB 149782 at the Amtsgericht Hamburg (Hamburg Commercial Register). The company was incorporated on 18 January 2018 and is recorded with active status. Its registered office is at Rathausstr. 3, 20095 Hamburg.
Kalweit ITS GmbH provides independent IT security consulting, auditing and penetration-testing services. Its registered business purpose is the provision of services in the field of information security, including consulting, training and lectures, and security audits, together with the acquisition of and participation in companies active in information security and information technology.
Operating under the brand KALWEIT ITS, the company serves corporate groups, operators of critical infrastructure and small and medium-sized enterprises across regulated sectors including healthcare, finance and banking, and energy, according to its official website. It states that it works exclusively with permanently employed, certified security specialists rather than subcontractors, and holds ISO/IEC 27001 certification.
Registered share capital was initially EUR 36,000 at incorporation and was increased to EUR 51,424 by a filing recorded 21 May 2024, according to Handelsregister data cited by North Data. No stock-exchange listing was identified, and no independently verified company-level revenue or headcount figures were located in accessible public sources at the time of research.
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Shareholders
3
Shareholders of Kalweit ITS GmbH
Three shareholders are disclosed in registry-sourced data dated 4 September 2026, together accounting for the full 36,000 ordinary shares of nominal EUR 1 each: Sven Philipp Kalweit holds 60% (21,600 shares), Timo Lehne holds 20% (7,200 shares), and Boschenhof Verwaltungs GmbH holds the remaining 20% (7,200 shares). Boschenhof Verwaltungs GmbH is itself a registered German company (HRB 26115, Amtsgericht Traunstein, based in Prien am Chiemsee) whose stated business purpose is managing its own assets, in particular company participations. As all three known holdings sum to 100% of registered capital, disclosure appears full for the current share structure, though no independent Transparenzregister filing was reviewed to confirm this beyond the underlying registry data.
Ultimate beneficial ownership
Sven Philipp Kalweit holds a direct 60% shareholding, which exceeds the 25% threshold typically used to identify beneficial owners under German transparency rules. This reflects a direct holding rather than a calculated indirect chain, and no separate Transparenzregister filing was independently reviewed to confirm his status as a registered UBO.
Data availability
Shareholder information for this GmbH is drawn from a shareholder list dated 4 September 2026 and appears complete for the current share capital; no historical shareholder changes prior to that date were reviewed.
Sources
- Registry-sourced shareholder data, verified_at 2026-09-04 (internal registry data feed)
- North Data, Kalweit ITS GmbH HRB 149782, https://www.northdata.com/Kalweit%20ITS%20GmbH,%20Hamburg/HRB%20149782, retrieved 2026-09-22
- WebValid, Boschenhof Verwaltungs GmbH HRB 26115, https://www.webvalid.de/company/Boschenhof+Verwaltungs+GmbH,+Prien/HRB+26115, retrieved 2026-09-22
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| Sven Philipp Kalweit | 60% | Handelsregister (Commercial Register) | |
| Timo Lehne | 20% | Handelsregister (Commercial Register) | |
| Boschenhof Verwaltungs GmbH | 20% | Handelsregister (Commercial Register) |
Officers
4
Directors and officers of Kalweit ITS GmbH
Two active Managing Directors (Geschaeftsfuehrer) are disclosed as of registry data dated 4 September 2026: Sven Philipp Kalweit, appointed to this role on 22 August 2018 (having previously held a different registered officer role between 18 January 2018 and 22 August 2018), and Gunther Rudolf Paprocki, confirmed via the company’s official website as Managing Partner responsible for Operations and HR since 2024, though his exact Handelsregister appointment date is not disclosed in the reviewed source. One former Managing Director, Enno Rey, is recorded as having served from incorporation on 18 January 2018 until his resignation on 22 August 2018. Nationality is not disclosed for any officer in the available registry data.
Recent officer changes
- Sven Philipp Kalweit: role changed from an earlier registered officer position to Managing Director, effective 22 August 2018 (registry data).
- Enno Rey: resigned as Managing Director, effective 22 August 2018 (registry data).
- Gunther Rudolf Paprocki: became Managing Partner (Operations & HR), reported effective 2024 (company website; Handelsregister filing date not independently confirmed).
Data availability
German Handelsregister filings publish the names, roles and appointment or resignation dates of managing directors but do not publish nationality or country of residence; these fields are marked as not disclosed rather than inferred.
Sources
- Registry-sourced officer data (internal registry data feed)
- KALWEIT ITS official website, About Us, https://kalweit-its.de/en/about-us/, retrieved 2026-09-22
- North Data, Kalweit ITS GmbH HRB 149782, https://www.northdata.com/Kalweit%20ITS%20GmbH,%20Hamburg/HRB%20149782, retrieved 2026-09-22
Group Structure
Group structure of Kalweit ITS GmbH
No verified parent company, subsidiary or sister-company relationship was identified for Kalweit ITS GmbH. Registry-linkage data dated 4 September 2026 explicitly records no parent, subsidiary or ownership linkage for the company. One of its three disclosed shareholders, Boschenhof Verwaltungs GmbH (HRB 26115, Amtsgericht Traunstein), is itself a German holding company whose registered purpose is managing its own assets and company participations; however it holds only a 20% minority stake in Kalweit ITS GmbH, alongside two individual shareholders holding a combined 80%, so it does not represent a controlling parent relationship. It is therefore described here as a minority corporate shareholder rather than a verified parent company. No subsidiaries of Kalweit ITS GmbH were identified in the sources reviewed.
Data availability
Beyond the minority corporate shareholding noted above, no further corporate-linkage information was found; based on available registry data, Kalweit ITS GmbH appears to operate as an independently owned entity rather than part of a verified corporate group.
Sources
- Registry-sourced corporate-linkage data, https://www.handelsregister.de, retrieved 2026-09-22
- North Data, Kalweit ITS GmbH HRB 149782, https://www.northdata.com/Kalweit%20ITS%20GmbH,%20Hamburg/HRB%20149782, retrieved 2026-09-22
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Frequently Asked Questions
What does Kalweit ITS GmbH do?
IT security consulting, auditing and penetration-testing services, headquartered in Hamburg, Germany, serving regulated sectors including healthcare, finance and energy.
Who owns Kalweit ITS GmbH?
Three disclosed shareholders as of Sep 2026: Sven Philipp Kalweit (60%), Timo Lehne (20%), and Boschenhof Verwaltungs GmbH (20%).
Who is Kalweit ITS GmbH's UBO (Ultimate Beneficial Owner)?
Sven Philipp Kalweit holds a direct 60% shareholding, above the typical 25% beneficial-ownership threshold; no independent Transparenzregister filing reviewed.
What is Kalweit ITS GmbH's company registration number?
Kalweit ITS GmbH's registration number is HRB 149782 Hamburg, filed with Handelsregister (Commercial Register) in Germany. Its current status on the register is active.
Is Kalweit ITS GmbH still an active company?
Kalweit ITS GmbH's status on Handelsregister (Commercial Register) is listed as active.
When was Kalweit ITS GmbH incorporated?
Kalweit ITS GmbH was incorporated on 18 January 2018, according to Handelsregister (Commercial Register).
What is Kalweit ITS GmbH's registered address?
The registered address on file for Kalweit ITS GmbH is Hamburg, Germany.
Who are the officers/directors of Kalweit ITS GmbH?
Two active Managing Directors: Sven Philipp Kalweit and Gunther Rudolf Paprocki. One former Managing Director, Enno Rey, resigned 22 August 2018.
Does Kalweit ITS GmbH have a parent company or subsidiaries?
No verified parent or subsidiary relationships; Boschenhof Verwaltungs GmbH is a 20% minority corporate shareholder, not a controlling parent.
Can Zavia monitor changes to Kalweit ITS GmbH's ownership over time?
This profile reflects a point-in-time snapshot from Handelsregister (Commercial Register). Zavia's monitoring API can track changes to Kalweit ITS GmbH's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access Kalweit ITS GmbH's data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including Germany, so records like Kalweit ITS GmbH'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 Handelsregister (Commercial Register) and was last synced on 22 September 2026.