ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED
ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED is a Private limited company (Ltd.) registered in United Kingdom under 03148098, and its current status with Companies House is active. The company was incorporated on 18 January 1996 and lists its registered address as Bolton, United Kingdom. 1 shareholder is on record for ASSYSTEM ENERGY & INFRASTRUCTURE 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 ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED, held on the Confirmation Statement (CS01), filed under the Companies Act 2006.
The largest of these is ASSYSTEM SA, 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 |
|---|---|---|---|
| ASSYSTEM SA | 100% | Companies House |
Officers
5
Four of the 5 officer records shown for ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED are current appointments, filed with Companies House. Christian Olivier Jeanneau (appointed 2018-04-05), Damien Chabert D'Hieres De Seguin De Reynies (appointed 2020-06-08) and Simon Barber (appointed 2020-11-02) all serve as Director; Natalie Ormerod (appointed 2026-06-02) serves as Company Secretary. The remaining 1 record shown (Karen Mason) is a former appointment that has since been resigned.
The register reports 15 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at ASSYSTEM ENERGY & INFRASTRUCTURE 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
ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED sits 3 levels below its ultimate parent, H.D.L., registered in France. 2 subsidiaries are recorded beneath it, across 1 jurisdiction. The full chain up to H.D.L. is derived by walking shareholder filings across jurisdictions; no link in it is independently corroborated by ASSYSTEM ENERGY & INFRASTRUCTURE 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 2 subsidiaries span 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.
H.D.L.
France
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Frequently Asked Questions
Who owns ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED?
One shareholder is currently on record for ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED, held on the Confirmation Statement (CS01), filed under the Companies Act 2006. The largest of these is ASSYSTEM SA, 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 ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED's UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for ASSYSTEM ENERGY & INFRASTRUCTURE 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 ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED have on record?
1 shareholder is shown on record for ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED.
What is ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED's company registration number?
ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED's registration number is 03148098, filed with Companies House in United Kingdom. Its current status on the register is active.
Is ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED still an active company?
ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED's status on Companies House is listed as active.
When was ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED incorporated?
ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED was incorporated on 18 January 1996, according to Companies House.
What is ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED's registered address?
The registered address on file for ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED is Bolton, United Kingdom.
What legal structure is ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED registered as?
ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED is registered as a Private limited company (Ltd.) in United Kingdom.
Who are the officers/directors of ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED?
Four of the 5 officer records shown for ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED are current appointments, filed with Companies House. Christian Olivier Jeanneau (appointed 2018-04-05), Damien Chabert D'Hieres De Seguin De Reynies (appointed 2020-06-08) and Simon Barber (appointed 2020-11-02) all serve as Director; Natalie Ormerod (appointed 2026-06-02) serves as Company Secretary. The remaining 1 record shown (Karen Mason) is a former appointment that has since been resigned. Management authority at ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED have a parent company or subsidiaries?
ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED sits 3 levels below its ultimate parent, H.D.L., registered in France. 2 subsidiaries are recorded beneath it, across 1 jurisdiction. Those 2 subsidiaries span 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 ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED's ownership over time?
This profile reflects a point-in-time snapshot from Companies House. Zavia's monitoring API can track changes to ASSYSTEM ENERGY & INFRASTRUCTURE 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 ASSYSTEM ENERGY & INFRASTRUCTURE 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 ASSYSTEM ENERGY & INFRASTRUCTURE 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.