ASTRA TOPCO LIMITED
ASTRA TOPCO LIMITED is a Private limited company (Ltd.) registered in United Kingdom under 13674689, and its current status with Companies House is active. The company was incorporated on 12 October 2021 and lists its registered address as Abingdon, United Kingdom. 5 shareholders are on record for ASTRA TOPCO LIMITED, including at least one natural person recorded as a direct holder; the filing carries no beneficial-ownership flag, so that holder is noted here as a recorded shareholder rather than a confirmed ultimate beneficial owner (UBO). This profile is sourced directly from Companies House and was last updated on 6 October 2026.
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Shareholders
5
Five shareholders are currently on record for ASTRA TOPCO LIMITED, held on the Confirmation Statement (CS01), filed under the Companies Act 2006.
The largest of these is G SQUARE CAPITAL (GP) IV LLP, holding 88.4% — a majority holding — followed by THE MICHAEL O'BYRNE 2021 UK TRUST at 14.5%; the remaining 3 shareholders shown hold smaller stakes.
The register reports 56 shareholders in total, though only the top 5 by holding are shown in this view.
3 shareholders shown are companies, so the ownership chain continues above this level for those holdings; the other 2 are recorded as direct individual holders, though the record carries no UBO/PSC flag confirming beneficial-owner status.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| G SQUARE CAPITAL (GP) IV LLP | 88.4% | Companies House | |
| THE MICHAEL O'BYRNE 2021 UK TRUST | 14.5% | Companies House | |
| MICHAEL ANTHONY O'BYRNE | 7.3% | Companies House | |
| JOHN O'BYRNE | 7.1% | Companies House | |
| O'BYRNE DISCRETIONARY TRUST | 2.1% | Companies House |
Officers
5
Four of the 5 officer records shown for ASTRA TOPCO LIMITED are current appointments, filed with Companies House. Richard Hoenich (appointed 2021-10-12), Laurent Gerard Ganem (appointed 2021-10-12), John O'Byrne (appointed 2025-02-17) and Andrew Reeves (appointed 2025-11-05) all serve as Director. The record also shows 1 earlier, since-resigned appointment held by an officer who currently serves.
The register reports 8 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at ASTRA TOPCO LIMITED sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
The source filing doesn't specify representation authority — whether officers can act individually or must sign jointly to bind the company — so that detail isn't available here.
Group Structure
ASTRA TOPCO LIMITED sits 1 level below its ultimate parent, G SQUARE CAPITAL (GP) IV LLP, registered in United Kingdom. 1 subsidiary is recorded beneath it, across 1 jurisdiction. Immediately above ASTRA TOPCO LIMITED is G SQUARE CAPITAL (GP) IV LLP, holding 88.4% as filed in ASTRA TOPCO LIMITED's own shareholder record with Companies House. Each of these downward relationships is derived rather than filed: resolved by matching entities across the registry network, not stated directly in a single document.
Those 1 subsidiary spans United Kingdom jurisdiction, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. One of the 1 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
G SQUARE CAPITAL (GP) IV LLP
United Kingdom
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Frequently Asked Questions
Who owns ASTRA TOPCO LIMITED?
Five shareholders are currently on record for ASTRA TOPCO LIMITED, held on the Confirmation Statement (CS01), filed under the Companies Act 2006. The largest of these is G SQUARE CAPITAL (GP) IV LLP, holding 88.4% — a majority holding — followed by THE MICHAEL O'BYRNE 2021 UK TRUST at 14.5%; the remaining 3 shareholders shown hold smaller stakes. 3 shareholders shown are companies, so the ownership chain continues above this level for those holdings; the other 2 are recorded as direct individual holders, though the record carries no UBO/PSC flag confirming beneficial-owner status.
Who is ASTRA TOPCO LIMITED's UBO (Ultimate Beneficial Owner)?
At least one shareholder recorded for ASTRA TOPCO LIMITED is a natural person. The record carries no dedicated UBO/PSC flag, so that holder is stated here as a recorded shareholder rather than a confirmed Ultimate Beneficial Owner (UBO).
How many shareholders does ASTRA TOPCO LIMITED have on record?
5 shareholders are shown on record for ASTRA TOPCO LIMITED. The register reports 56 in total; only the top 5 by holding are shown here.
What is ASTRA TOPCO LIMITED's company registration number?
ASTRA TOPCO LIMITED's registration number is 13674689, filed with Companies House in United Kingdom. Its current status on the register is active.
Is ASTRA TOPCO LIMITED still an active company?
ASTRA TOPCO LIMITED's status on Companies House is listed as active.
When was ASTRA TOPCO LIMITED incorporated?
ASTRA TOPCO LIMITED was incorporated on 12 October 2021, according to Companies House.
What is ASTRA TOPCO LIMITED's registered address?
The registered address on file for ASTRA TOPCO LIMITED is Abingdon, United Kingdom.
What legal structure is ASTRA TOPCO LIMITED registered as?
ASTRA TOPCO LIMITED is registered as a Private limited company (Ltd.) in United Kingdom.
Who are the officers/directors of ASTRA TOPCO LIMITED?
Four of the 5 officer records shown for ASTRA TOPCO LIMITED are current appointments, filed with Companies House. Richard Hoenich (appointed 2021-10-12), Laurent Gerard Ganem (appointed 2021-10-12), John O'Byrne (appointed 2025-02-17) and Andrew Reeves (appointed 2025-11-05) all serve as Director. The record also shows 1 earlier, since-resigned appointment held by an officer who currently serves. Management authority at ASTRA TOPCO LIMITED sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does ASTRA TOPCO LIMITED have a parent company or subsidiaries?
ASTRA TOPCO LIMITED sits 1 level below its ultimate parent, G SQUARE CAPITAL (GP) IV LLP, registered in United Kingdom. 1 subsidiary is recorded beneath it, across 1 jurisdiction. Those 1 subsidiary spans United Kingdom jurisdiction, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. One of the 1 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
Can Zavia monitor changes to ASTRA TOPCO LIMITED's ownership over time?
This profile reflects a point-in-time snapshot from Companies House. Zavia's monitoring API can track changes to ASTRA TOPCO LIMITED's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access ASTRA TOPCO LIMITED's data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including United Kingdom, so records like ASTRA TOPCO LIMITED'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 Companies House and was last synced on 6 October 2026.