A Sociedad Anónima (SA) is Spain's corporation structure for larger companies, where capital is divided into freely transferable shares (acciones). It requires a minimum share capital of EUR 60,000 and is the mandatory form for companies that wish to list on a Spanish stock exchange.
In practice
What Is a Sociedad Anónima?
The Sociedad Anónima (SA) is Spain’s large-company corporate form, equivalent to a UK Public Limited Company (PLC), a US C-Corporation (publicly held), or a German Aktiengesellschaft (AG). Like the SL, it offers limited liability for all shareholders, but it is designed for companies that need freely transferable shares, a broader investor base, or access to the capital markets.
Both the SL and SA are governed by the same Ley de Sociedades de Capital (Real Decreto Legislativo 1/2010), though different provisions apply to each.
Key Characteristics
| Feature | Details |
|---|---|
| Minimum share capital | EUR 60,000 (at least 25% paid up on incorporation) |
| Number of shareholders | 1 (SA unipersonal) to unlimited |
| Shares | Called acciones; freely transferable by default unless restricted by articles |
| Management | Board of directors (consejo de administración) required when >2 directors |
| Audit | Mandatory above statutory size thresholds; always for listed SAs |
| Annual accounts | Filed with the Commercial Registry |
SA vs SL: The Key Differences
| SA | SL | |
|---|---|---|
| Minimum capital | EUR 60,000 | EUR 3,000 |
| Share transferability | Freely transferable | Restricted by law |
| Capital paid up at incorporation | 25% minimum | 100% |
| Bearer shares | Historically possible; now largely abolished | Not applicable |
| Listed on stock exchange | Yes (required for listing) | No |
| Governance complexity | Higher | Lower |
| Preferred for | Listed companies, large investors, capital market access | SMEs, closely held businesses |
Governance Structure
The SA requires more formal governance than the SL:
- General Meeting of Shareholders (Junta General de Accionistas): Must meet at least annually. Extraordinary meetings can be called by the board or by shareholders representing at least 5% of capital.
- Board of Directors (Consejo de Administración): Required when the company has more than two directors. The board typically elects a Chairman and may appoint a Managing Director (Consejero Delegado).
- Auditors: Large SAs and all listed SAs must have their accounts audited by a registered auditor (ROAC).
When to Choose an SA Over an SL
The SA is appropriate when:
- Stock exchange listing is planned — the Spanish stock exchange (BME) requires SA status.
- Employee share option plans require freely tradeable shares.
- Institutional investors (private equity, venture capital) require the SA structure for investment documentation compatibility.
- The company needs to issue bonds or other debt securities in the capital markets.
- The founders anticipate a capital structure with many shareholders and complex shareholding tiers.
For most foreign investors setting up an operational subsidiary or holding company in Spain, the SL is the better choice due to lower capital requirements, simpler governance, and greater flexibility in shareholder arrangements. The SA makes sense primarily when listing or large-scale capital market activity is envisaged.
Incorporation Process
The SA incorporation process mirrors that of the SL (name reservation, bank deposit of capital, notarial deed, tax registration, Commercial Registry filing) but with stricter formalities:
- Articles of association must follow more rigid statutory requirements.
- At least 25% of the minimum EUR 60,000 capital (i.e., EUR 15,000) must be in cash at incorporation; the remainder may be contributed in subsequent capital calls.
- Non-cash contributions require an independent expert valuation.
Listed SAs: Additional Obligations
Companies whose shares are admitted to trading on the Spanish exchanges (Bolsa de Madrid, Barcelona, Bilbao, Valencia, or the BME Growth market for smaller companies) are subject to the securities markets law (Ley del Mercado de Valores), CNMV oversight, and continuous reporting obligations.
How BMC Can Help
We advise on the choice between SL and SA for new investments, manage the incorporation of both structures, assist with conversions from SL to SA, and provide ongoing corporate secretarial services for SAs including board meeting support and commercial registry filings.