492,000 Spanish SMEs and sole traders: how they can be reached, province by province (2026 report)

We analysed the 492,043 records of Spanish companies and sole traders in our directory after cleaning them. They all have one thing in common: they received a Kit Digital voucher, Spain's EU-funded SME digitalisation programme. So they are real businesses, active at some point between 2022 and 2025, with an interest in going digital. It's a highly representative sample of Spanish businesses with fewer than 50 employees.

You may cite these figures with attribution: IberiaData, 2026.

Methodology in brief

• Source: IberiaData's own database of Kit Digital beneficiaries (2022-2025 calls), deduplicated by tax ID.
• Cleaning: we removed emails and phones belonging to accounting firms, agencies and operators that filed applications on companies' behalf, non-existent email domains and invalid numbers.
• Province: from the registered postcode.
• Size: from the programme segment (0-2, 3-9, 10-49, 50-99 and 100-249 employees).

Half are sole traders

Type	Records	%
Companies and other entities	246,315	50.1 %
Sole traders (autónomos)	245,728	49.9 %

If you sell to "Spanish SMEs", half your market are individuals, which matters for how you may contact them (Robinson list, legitimate interest).

Two in three have fewer than three employees

Employees	Records	%
0-2	335,679	68.2 %
3-9	99,899	20.3 %
10-49	54,457	11.1 %
50-99	1,308	0.3 %
100-249	700	0.1 %

Among sole traders, 92.6 % are in the 0-2 band. Companies are more varied: 44 % in the smallest band, 34 % with 3-9 and 22 % with 10-49.

Top 15 provinces

Province	Records	% sole traders	% with 0-2 employees
Madrid	70,126	46.5 %	70.9 %
Barcelona	66,153	47.3 %	69.0 %
Valencia	26,931	45.4 %	66.2 %
Alicante	19,299	47.9 %	66.4 %
Seville	18,824	50.1 %	69.2 %
Málaga	16,290	57.8 %	73.9 %
Murcia	15,731	48.6 %	64.4 %
Balearic Islands	12,523	54.7 %	68.7 %
Asturias	11,247	52.7 %	67.8 %
A Coruña	11,195	48.6 %	64.6 %
Pontevedra	11,001	47.8 %	65.1 %
Zaragoza	10,944	41.8 %	63.9 %
Tarragona	10,512	46.9 %	61.8 %
Las Palmas	10,112	65.0 %	74.4 %
Girona	10,039	50.2 %	66.2 %

Where sole traders weigh most

• Highest: Melilla (66 %), Las Palmas (65 %), Ceuta (64.4 %), Santa Cruz de Tenerife (63.5 %), Ávila (63 %), Cáceres (61.6 %).
• Lowest: Álava (34.5 %), Bizkaia (36.5 %), Gipuzkoa (40.8 %), Zaragoza (41.8 %), Huesca (44.2 %).

The Basque Country stands out with more and larger companies: Álava has the lowest share of 0-2 employee businesses (56.5 %). Ávila, Las Palmas, Guadalajara, Málaga and Cáceres exceed 73 %.

How they can be reached

• Phone: 92.9 % of numbers are mobiles. In a Spanish SME, the number that works is the owner's mobile.
• Own-domain email: 43.8 %.
• Gmail: 38.7 %, the norm among sole traders and micro-businesses, usually the owner's own inbox.

What we cleaned (and why it matters)

We started from 535,193 unique tax IDs. Along the way we removed, among others, more than 48,000 emails from accounting firms, agencies and operators, more than 9,000 cases of the same Gmail "disguised" with dots to use it across companies, and more than 50,000 phone numbers repeated across unrelated companies. Uncleaned, a Spanish SME database takes you to accountants, not to businesses.

Takeaways for anyone selling to Spanish SMEs

1. Think mobile. Nine in ten numbers are.
2. Segment by size from day one. 68 % are micro-businesses.
3. Adapt by region. In the Canary Islands, Ceuta and Melilla you'll mostly talk to sole traders; in the Basque Country, to companies.
4. Distrust uncleaned databases.