Company · Maidenhead
89 Castelnau RTM Company LTD
89 Castelnau RTM Company LTD is an active UK company (number 07190205), incorporated 2010, with 1 current director, Hans Jurgen Blanckenburg. Source: Companies House, updated 18th October 2026.
Management of real estate on a fee or contract basis
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Official record Companies House · updated 18th October 2026 · Sources · Free, no card or password
Network
The large node is 89 Castelnau RTM Company LTD. Red nodes are organisations, white nodes are people. Dashed links are historical or inferred. Click any node to explore.
Who leads it
Previous officers 1
- Catherine Highet 2010-2025 View profile
Directors and secretaries as filed at Companies House.
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About
- What it does
- Management of real estate on a fee or contract basis
- Incorporated
- 16/03/2010
- Registered office
- Maidenhead
Ownership
Owned by (1) iOwned byIndividuals and companies registered as having significant control over this company, from the Companies House PSC (persons with significant control) register. People whose ownership could not be confirmed to one individual are not listed as confirmed owners.
- Hans Jurgen Blanckenburg
25-50% shares, 25-50% voting · notified 2017-03-15
Group
- 89 Castelnau RTM Company LTD
is controlled by Hans Jurgen Blanckenburg
Evidence
active 25-50% shares, 25-50% voting · notified 2017-03-15 · source: Companies House PSC register
Ultimately controlled by Hans Jurgen Blanckenburg.
1 other company in this group
Ownership paths are calculated from Companies House persons-with-significant-control filings. Each step shows the filed nature of control and dates; a step marked "ceased" is historical, not current.
Financials
- Net assets
- -£309
- Employees
- 0
- Turnover
- Not reported (small or micro-entity accounts)
Filed as Micro-entity accounts.
Figures from accounts filed at Companies House (iXBRL), period ending 2025-09-30. Where turnover is absent, small and micro-entity accounts are not required to report it, so it is not shown as zero.
Board analysis
Board DNA
How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.iBoard compositionCounted from the dated Companies House officer record: the current directors only, past directors excluded.
1 directors on the board
- Hans Jurgen Blanckenburg Director · appointed 2010
Directors past 6 years
- Hans Jurgen Blanckenburg Director · appointed 2010
Gaps to watch
- A single director - no second pair of eyes on any decision
Where to look Suggested search: a second director to remove single-point control.
Sources
Official record from Companies House. Governance Register calculates the connections.
Record details
- Company number
- 07190205
- Status
- Active
- Type
- PRI/LTD BY GUAR/NSC (Private, limited by guarantee, no share capital)
- Accounts next due
- 30/06/2027
- Edition
- Register edition compiled 18th October 2026
- Labels
- Official record from Companies House · Calculated derived by Governance Register.
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