COSTAIN OIL, GAS & PROCESS LIMITED
COSTAIN OIL, GAS & PROCESS LIMITED is a Private limited company (Ltd.) registered in United Kingdom under 00786418, and its current status with Companies House is active. Its registered address on file is London, United Kingdom. 1 shareholder is on record for COSTAIN OIL, GAS & PROCESS LIMITED, and since every one of them is a company rather than an individual, this particular filing does not on its own establish an ultimate beneficial owner (UBO) — identifying one would mean tracing the ownership of each shareholding company in turn. This profile is sourced directly from Companies House and was last updated on 6 October 2026.
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Shareholders
1
One shareholder is currently on record for COSTAIN OIL, GAS & PROCESS LIMITED, held on the Confirmation Statement (CS01), filed under the Companies Act 2006.
The largest of these is COSTAIN ENGINEERING & CONSTRUCTION LTD, holding 100% — a majority holding.
Because the shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| COSTAIN ENGINEERING & CONSTRUCTION LTD | 100% | Companies House |
Officers
5
The Director of COSTAIN OIL, GAS & PROCESS LIMITED currently on record is Helen Willis; five officers are currently on record for COSTAIN OIL, GAS & PROCESS LIMITED, filed with Companies House.
The register reports 44 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at COSTAIN OIL, GAS & PROCESS 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
COSTAIN OIL, GAS & PROCESS LIMITED sits 2 levels below its ultimate parent, COSTAIN GROUP PLC, registered in United Kingdom. 1 subsidiary is recorded beneath it, across 1 jurisdiction. The full chain up to COSTAIN GROUP PLC is derived by walking shareholder filings across jurisdictions; no link in it is independently corroborated by COSTAIN OIL, GAS & PROCESS LIMITED's own shareholder record. 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.
COSTAIN GROUP PLC
United Kingdom
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Frequently Asked Questions
Who owns COSTAIN OIL, GAS & PROCESS LIMITED?
One shareholder is currently on record for COSTAIN OIL, GAS & PROCESS LIMITED, held on the Confirmation Statement (CS01), filed under the Companies Act 2006. The largest of these is COSTAIN ENGINEERING & CONSTRUCTION LTD, holding 100% — a majority holding. Because the shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
Who is COSTAIN OIL, GAS & PROCESS LIMITED's UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for COSTAIN OIL, GAS & PROCESS LIMITED is itself a company rather than a natural person, so no Ultimate Beneficial Owner (UBO) is identified at this level; establishing one would require tracing the ownership of each shareholding company in turn.
How many shareholders does COSTAIN OIL, GAS & PROCESS LIMITED have on record?
1 shareholder is shown on record for COSTAIN OIL, GAS & PROCESS LIMITED.
What is COSTAIN OIL, GAS & PROCESS LIMITED's company registration number?
COSTAIN OIL, GAS & PROCESS LIMITED's registration number is 00786418, filed with Companies House in United Kingdom. Its current status on the register is active.
Is COSTAIN OIL, GAS & PROCESS LIMITED still an active company?
COSTAIN OIL, GAS & PROCESS LIMITED's status on Companies House is listed as active.
What is COSTAIN OIL, GAS & PROCESS LIMITED's registered address?
The registered address on file for COSTAIN OIL, GAS & PROCESS LIMITED is London, United Kingdom.
What legal structure is COSTAIN OIL, GAS & PROCESS LIMITED registered as?
COSTAIN OIL, GAS & PROCESS LIMITED is registered as a Private limited company (Ltd.) in United Kingdom.
Who are the officers/directors of COSTAIN OIL, GAS & PROCESS LIMITED?
The Director of COSTAIN OIL, GAS & PROCESS LIMITED currently on record is Helen Willis; five officers are currently on record for COSTAIN OIL, GAS & PROCESS LIMITED, filed with Companies House. Management authority at COSTAIN OIL, GAS & PROCESS LIMITED sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does COSTAIN OIL, GAS & PROCESS LIMITED have a parent company or subsidiaries?
COSTAIN OIL, GAS & PROCESS LIMITED sits 2 levels below its ultimate parent, COSTAIN GROUP PLC, 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.
Can Zavia monitor changes to COSTAIN OIL, GAS & PROCESS LIMITED's ownership over time?
This profile reflects a point-in-time snapshot from Companies House. Zavia's monitoring API can track changes to COSTAIN OIL, GAS & PROCESS 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 COSTAIN OIL, GAS & PROCESS 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 COSTAIN OIL, GAS & PROCESS 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.