Marc Wahba
Co-founder & CTO
TL;DR
We reviewed the leading B2B data providers for Spain across data volume, GDPR/AEPD compliance, and use case fit. InfobelPRO leads with comprehensive Spanish company records and pan-European coverage. Use the comparison tool below to compare up to 3 providers side by side. For a full breakdown of verified Spain company records, see our Spain business database. To browse the full Spain company directory by industry, see our Spain company directory. Or browse the Spain company directory.
Company data in Spain is anchored to Spain’s Registro Mercantil, which records incorporations, registered addresses and directors for every registered company. Each business carries a CIF/NIF that stays stable through rebrands and ownership changes, and that identifier is the backbone most Spain B2B data providers build on — it ties firmographics, contacts and corporate-group links back to a verifiable source rather than a scraped profile.
Coverage is where providers separate. InfobelPRO's dataset covers 5.3M companies in Spain, each keyed to its registry identity and enriched with sector, size, revenue and contact attributes. Treat that figure as one provider's addressable universe rather than a national headcount — vendors set their boundaries differently, which is why record counts are worth comparing directly rather than taking at face value.
Compliance is the third factor. Spain sits under the EU General Data Protection Regulation (GDPR), so the practical checks for a buyer stay consistent: confirm the provider processes business contact data on a documented lawful basis, request a Data Processing Agreement, and verify that opt-out requests are honoured. A provider that can point to registry sourcing and a documented compliance posture carries less risk than one that cannot.
Companies needing the widest Spanish B2B coverage with deep firmographic, technographic, and contact data
6.6M+ Spanish companies · 380M worldwide
Spanish and Latin American businesses needing data quality, marketing data, and decision-making intelligence
3.9M+ Spanish companies
Businesses needing commercial, financial, and risk intelligence on Spanish companies
3.7M+ Spanish companies (incl. self-employed)
Credit insurance and risk-aware companies needing Spanish and international corporate data
4.1M+ Spanish companies · 380M worldwide
Spanish businesses needing detailed financial data, payment history, and commercial reports on local companies
3M+ Spanish companies
Businesses needing credit risk management and fraud detection data on Spanish companies
3M+ Spanish companies
Companies seeking international trade connections and B2B directory services in Spain
Not publicly specified
All 7 Spanish B2B data providers at a glance. Use the “Add to compare” feature above for a side-by-side deep dive.
| Provider | Data volume | Coverage | GDPR |
|---|---|---|---|
| #1InfobelPRO | 6.6M+ Spanish companies · 380M worldwide | Spain + Global (205 markets) | GDPR ✓ · CCPA ✓ · EU-based provider |
| Deyde Datacentric | 3.9M+ Spanish companies | Spain · Latin America · Europe | GDPR ✓ |
| Informa D&B | 3.7M+ Spanish companies (incl. self-employed) | Spain + D&B Worldwide Network | GDPR ✓ |
| Iberinform | 4.1M+ Spanish companies · 380M worldwide | Spain + Global (380M worldwide) | GDPR ✓ |
| Economia3 Infocif | 3M+ Spanish companies | Spain | GDPR ✓ |
| Axesor | 3M+ Spanish companies | Spain (Experian network) | GDPR ✓ |
| Kompass Spain | Not publicly specified | Spain + Global Kompass Network | GDPR ✓ |
Choosing between Spain providers comes down to four questions.
Start with sourcing. Does the data trace back to Registro Mercantil, or is it assembled by scraping websites and directories? Registry-sourced records carry a verifiable CIF/NIF; scraped records do not, and they go stale faster. Ask each provider where its fields originate before anything else.
Next, match attribute depth to the job. Prospecting needs contacts and firmographics; CRM enrichment needs a stable match key and broad coverage; risk and compliance work needs corporate linkage, financials and directorships. InfobelPRO leads on registry-sourced firmographic depth, while the other providers profiled below weight contact data and niche coverage differently — strength in one area does not imply strength in another.
Third, treat compliance as a buying criterion, not an afterthought. Your provider should process business contact data under the EU General Data Protection Regulation (GDPR) on a documented lawful basis, supply a Data Processing Agreement, and honour opt-out requests — settle that in writing before you commit.
Finally, weigh scope. A local specialist can go deeper on Spain records and edge cases; a multi-country platform fits better when you sell across borders and want one schema, one contract and consistent coverage beyond Spain. Neither wins outright — it depends on whether Spain is your entire market or one territory among many.
These four questions are the lens we applied when ranking the providers above; the methodology below sets out exactly how we weighed them.
To build this ranking, we evaluated B2B data providers for Spain across: volume and accuracy of Spanish company records, Registro Mercantil integration, firmographic and contact data depth, GDPR compliance under AEPD guidelines, delivery flexibility, and fit for Spanish and Iberian market use cases.
Spain has a large and diverse business market with approximately 3–4 million registered companies. The Registro Mercantil (Commercial Registry) is the official source for company registration data, and the NIF/CIF number serves as the primary business identifier. Key sectors for B2B prospecting include tourism and hospitality, construction, financial services, retail, and a growing tech ecosystem concentrated in Madrid and Barcelona.
Spain follows EU GDPR, enforced domestically by AEPD (Agencia Española de Protección de Datos). Spain also has the LOPDGDD (Organic Law on Data Protection and Guarantee of Digital Rights) which supplements GDPR with additional national provisions. For B2B data, legitimate interest is the standard lawful basis for commercial outreach. Always verify that your provider has an AEPD-compliant data processing agreement.
Spain has approximately 3–4 million registered businesses per the Registro Mercantil and Directorio Central de Empresas (DIRCE). The addressable B2B market for companies with employees is typically 500,000–1,000,000 enterprises. Major providers like InfobelPRO offer comprehensive Spanish company coverage with firmographic enrichment.
Spain's strongest B2B sectors include tourism and hospitality (Spain is the world's second most visited country), construction and real estate, financial services and fintech (Madrid is a major FinTech hub), food and agribusiness, retail and e-commerce, and a growing software and tech scene. CNAE codes (Spanish equivalent of NACE) are essential for sector-based filtering.
Local Spanish providers (like Axesor or Informa D&B Spain) offer deep integration with Registro Mercantil data and local financial intelligence. Global providers (InfobelPRO, ZoomInfo, Cognism) provide Spanish data alongside broader European and global coverage — ideal if Spain is one of several target markets. For purely Spanish campaigns, a local provider may offer richer legal and financial enrichment.
InfobelPRO maintains a dedicated dataset of verified Spain company records sourced from official registries. You can explore coverage, attributes, and request a free sample on the Spain B2B data page.
Browse the company directory for this market:
Or explore the underlying dataset on our Spain business database page.
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