ATOM HOLDCO PLC
ATOM HOLDCO PLC is a Public Limited Company registered in United Kingdom under 14129045, and its current status with Companies House is active. The company was incorporated on 24 May 2022 and lists its registered address as Newcastle Upon Tyne, United Kingdom. 5 shareholders are on record for ATOM HOLDCO PLC, 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 ATOM HOLDCO PLC, held on the Confirmation Statement (CS01), filed under the Companies Act 2006.
The largest of these is BANCO BILBAO VIZCAYA ARGENTARIA, SA, holding 50.2% — a majority holding — followed by TOSCA PROTON LP at 20.2%; the remaining 3 shareholders shown hold smaller stakes.
The register reports 298 shareholders in total, though only the top 5 by holding are shown in this view.
4 shareholders shown are companies, so the ownership chain continues above this level for those holdings; the other 1 is recorded as direct individual holder, though the record carries no UBO/PSC flag confirming beneficial-owner status.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| BANCO BILBAO VIZCAYA ARGENTARIA, SA | 50.2% | Companies House | |
| TOSCA PROTON LP | 20.2% | Companies House | |
| TOSCA PROTON LP | 20% | Companies House | |
| TOSCA OPPORTUNITY | 8.9% | Companies House | |
| SCHRODERS CAPITAL GLOBAL INNOVATION TRUST PLC | 7.1% | Companies House |
Officers
5
The Director of ATOM HOLDCO PLC currently on record is Cheryl Millington; five officers are currently on record for ATOM HOLDCO PLC, filed with Companies House.
The register reports 18 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at ATOM HOLDCO PLC 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
ATOM HOLDCO PLC has no recorded parent company — it sits at the top of its own group structure, with 1 subsidiary recorded beneath it across 1 jurisdiction. 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.
ATOM HOLDCO PLC
United Kingdom
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Frequently Asked Questions
Who owns ATOM HOLDCO PLC?
Five shareholders are currently on record for ATOM HOLDCO PLC, held on the Confirmation Statement (CS01), filed under the Companies Act 2006. The largest of these is BANCO BILBAO VIZCAYA ARGENTARIA, SA, holding 50.2% — a majority holding — followed by TOSCA PROTON LP at 20.2%; the remaining 3 shareholders shown hold smaller stakes. 4 shareholders shown are companies, so the ownership chain continues above this level for those holdings; the other 1 is recorded as direct individual holder, though the record carries no UBO/PSC flag confirming beneficial-owner status.
Who is ATOM HOLDCO PLC's UBO (Ultimate Beneficial Owner)?
At least one shareholder recorded for ATOM HOLDCO PLC 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 ATOM HOLDCO PLC have on record?
5 shareholders are shown on record for ATOM HOLDCO PLC. The register reports 298 in total; only the top 5 by holding are shown here.
What is ATOM HOLDCO PLC's company registration number?
ATOM HOLDCO PLC's registration number is 14129045, filed with Companies House in United Kingdom. Its current status on the register is active.
Is ATOM HOLDCO PLC still an active company?
ATOM HOLDCO PLC's status on Companies House is listed as active.
When was ATOM HOLDCO PLC incorporated?
ATOM HOLDCO PLC was incorporated on 24 May 2022, according to Companies House.
What is ATOM HOLDCO PLC's registered address?
The registered address on file for ATOM HOLDCO PLC is Newcastle Upon Tyne, United Kingdom.
What legal structure is ATOM HOLDCO PLC registered as?
ATOM HOLDCO PLC is registered as a Public Limited Company in United Kingdom.
Who are the officers/directors of ATOM HOLDCO PLC?
The Director of ATOM HOLDCO PLC currently on record is Cheryl Millington; five officers are currently on record for ATOM HOLDCO PLC, filed with Companies House. Management authority at ATOM HOLDCO PLC sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does ATOM HOLDCO PLC have a parent company or subsidiaries?
ATOM HOLDCO PLC has no recorded parent company — it sits at the top of its own group structure, with 1 subsidiary 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 ATOM HOLDCO PLC's ownership over time?
This profile reflects a point-in-time snapshot from Companies House. Zavia's monitoring API can track changes to ATOM HOLDCO PLC's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access ATOM HOLDCO PLC'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 ATOM HOLDCO PLC'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.