ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA
ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA is a Private limited company (Ltd.) registered in Spain under A28004885, and its current status with Colegio de Registradores / Registro Mercantil Central is active. The company was incorporated on 1 January 1942 and lists its registered address as Madrid, Spain. 5 shareholders are on record for ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA, 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 Colegio de Registradores / Registro Mercantil Central and was last updated on 22 September 2026.
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Shareholders
5
Shareholders of ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA
Five shareholders are currently on record for ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA, reflecting the Libro Registro de Socios (shareholder registry book) maintained under Article 104 of the Ley de Sociedades de Capital rather than a public filing. The largest of these is VANGUARD TAX-MANAGED FUNDS-Vanguard Developed Markets Index Fund, holding 18% — the largest recorded stake — followed by iShares Trust-iShares Core MSCI EAFE ETF at 13.8%; the remaining 3 shareholders shown hold smaller stakes. Because every 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.
Data availability
The register reports 13 shareholders in total, though only the top 5 by holding are shown in this view.
Officers
5
Directors and officers of ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA
The Chairman & Ceo Of Flatiron of ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA on record is Adolfo Valderas Martinez M.b.a.; 5 officers are shown here, filed with Colegio de Registradores / Registro Mercantil Central. Management authority at ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA 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.
Data availability
The register reports 35 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Group Structure
Group structure of ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA
ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA has no recorded parent company — it sits at the top of its own group structure, with 17 subsidiaries recorded beneath it across 7 jurisdictions. 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.
- ACS BNA Holdco Inc (Canada)
- ACS BNA O&M GP Inc (Canada)
- ACS RTF Partner Inc (Canada)
- ACS Thermosolar Plants, Inc. (United States)
- Flatiron Dragados Usa, Inc. (United States)
- NEXPLORE SA. (Spain)
- FTG O&M Solutions ACS GP Ltd (Canada)
- CARIATIDE SA (Spain)
- ACS SERVICIOS Y CONCESIONES SL (Spain)
- CIMIC GROUP LIMITED (Australia)
Data availability
Those 17 subsidiaries span Spain, Canada, United States, Australia, Dominican Republic, Mexico, and 1 more jurisdictions, 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. Five of the 17 go a level deeper still, with their own further subsidiaries recorded beneath them — additional ownership layers this view doesn't expand.
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Frequently Asked Questions
Who owns ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA?
Five shareholders are currently on record for ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA, reflecting the Libro Registro de Socios (shareholder registry book) maintained under Article 104 of the Ley de Sociedades de Capital rather than a public filing. The largest of these is VANGUARD TAX-MANAGED FUNDS-Vanguard Developed Markets Index Fund, holding 18% — the largest recorded stake — followed by iShares Trust-iShares Core MSCI EAFE ETF at 13.8%; the remaining 3 shareholders shown hold smaller stakes. Because every 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 ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA's UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA 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 ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA have on record?
5 shareholders are shown on record for ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA. The register reports 13 in total; only the top 5 by holding are shown here.
What is ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA's company registration number?
ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA's registration number is A28004885, filed with Colegio de Registradores / Registro Mercantil Central in Spain. Its current status on the register is active.
Is ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA still an active company?
ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA's status on Colegio de Registradores / Registro Mercantil Central is listed as active.
When was ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA incorporated?
ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA was incorporated on 1 January 1942, according to Colegio de Registradores / Registro Mercantil Central.
What is ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA's registered address?
The registered address on file for ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA is Madrid, Spain.
What legal structure is ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA registered as?
ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA is registered as a Private limited company (Ltd.) in Spain.
Who are the officers/directors of ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA?
The Chairman & Ceo Of Flatiron of ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA on record is Adolfo Valderas Martinez M.b.a.; 5 officers are shown here, filed with Colegio de Registradores / Registro Mercantil Central. Management authority at ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA have a parent company or subsidiaries?
ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA has no recorded parent company — it sits at the top of its own group structure, with 17 subsidiaries recorded beneath it across 7 jurisdictions. Those 17 subsidiaries span Spain, Canada, United States, Australia, Dominican Republic, Mexico, and 1 more jurisdictions, 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. Five of the 17 go a level deeper still, with their own further subsidiaries recorded beneath them — additional ownership layers this view doesn't expand.
Can Zavia monitor changes to ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA's ownership over time?
This profile reflects a point-in-time snapshot from Colegio de Registradores / Registro Mercantil Central. Zavia's monitoring API can track changes to ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA's data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including Spain, so records like ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS SA'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 Colegio de Registradores / Registro Mercantil Central and was last synced on 22 September 2026.