AMPER SA
AMPER SA is a Public Limited Company registered in Spain under A28079226, and its current status with Colegio de Registradores / Registro Mercantil Central is active. Its registered address on file is Madrid, Spain. 5 shareholders are on record for AMPER 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 24 September 2026.
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Shareholders
5
Shareholders of AMPER SA
Five shareholders are currently on record for AMPER 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 SPDR INDEX SHARES FUNDS-SPDR Portfolio Developed World ex-US ETF, holding 21.9% — the largest recorded stake — followed by DFA INVESTMENT TRUST CO-The Continental Small Company Series at 20.1%; 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 12 shareholders in total, though only the top 5 by holding are shown in this view.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| SPDR INDEX SHARES FUNDS-SPDR Portfolio Developed World ex-US ETF | 21.9% | Colegio de Registradores / Registro Mercantil Central | |
| DFA INVESTMENT TRUST CO-The Continental Small Company Series | 20.1% | Colegio de Registradores / Registro Mercantil Central | |
| SPDR Portfolio Developed World ex-US ETF | 11.3% | Colegio de Registradores / Registro Mercantil Central | |
| DFA International Core Equity Portfolio | 7.2% | Colegio de Registradores / Registro Mercantil Central | |
| DFA International Vector Equity Port | 1.2% | Colegio de Registradores / Registro Mercantil Central |
Officers
5
Directors and officers of AMPER SA
The Chief Executive Officer of AMPER SA currently on record is Cesar Revenga Buigues; five officers are currently on record for AMPER SA, filed with Colegio de Registradores / Registro Mercantil Central. Management authority at AMPER 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.
Group Structure
Group structure of AMPER SA
AMPER SA has no recorded parent company — it sits at the top of its own group structure, with 13 subsidiaries recorded beneath it across 5 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.
- ELECTROTECNICA INDUSTRIAL Y NAVAL SL (Spain)
- PROES CONSULTORES SA (Spain)
- AIOTWAVES SL. (Spain)
- WIRELESS WATTS SL. (Spain)
- MATERINTE SL. (Spain)
- WEDEFENCE PORTUGAL, LDA (Portugal)
- Elandia International Inc. (United States)
- SIGNAL INTELIGENCE CONSULTANTCY S.L. (Spain)
- NERVION AMPER INDUSTRIAL SOCIEDAD LIMITADA. (Spain)
- Desca Perú S.A.C. (Peru)
Data availability
Those 13 subsidiaries span Spain, Portugal, United States, Peru, Argentina 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 13 go a level deeper still, with their own further subsidiaries recorded beneath them — additional ownership layers this view doesn't expand.
AMPER SA
Spain
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Frequently Asked Questions
Who owns AMPER SA?
Five shareholders are currently on record for AMPER 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 SPDR INDEX SHARES FUNDS-SPDR Portfolio Developed World ex-US ETF, holding 21.9% — the largest recorded stake — followed by DFA INVESTMENT TRUST CO-The Continental Small Company Series at 20.1%; 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 AMPER SA's UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for AMPER 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 AMPER SA have on record?
5 shareholders are shown on record for AMPER SA. The register reports 12 in total; only the top 5 by holding are shown here.
What is AMPER SA's company registration number?
AMPER SA's registration number is A28079226, filed with Colegio de Registradores / Registro Mercantil Central in Spain. Its current status on the register is active.
Is AMPER SA still an active company?
AMPER SA's status on Colegio de Registradores / Registro Mercantil Central is listed as active.
What is AMPER SA's registered address?
The registered address on file for AMPER SA is Madrid, Spain.
What legal structure is AMPER SA registered as?
AMPER SA is registered as a Public Limited Company in Spain.
Who are the officers/directors of AMPER SA?
The Chief Executive Officer of AMPER SA currently on record is Cesar Revenga Buigues; five officers are currently on record for AMPER SA, filed with Colegio de Registradores / Registro Mercantil Central. Management authority at AMPER SA sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does AMPER SA have a parent company or subsidiaries?
AMPER SA has no recorded parent company — it sits at the top of its own group structure, with 13 subsidiaries recorded beneath it across 5 jurisdictions. Those 13 subsidiaries span Spain, Portugal, United States, Peru, Argentina 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 13 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 AMPER 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 AMPER 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 AMPER 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 AMPER 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 24 September 2026.