The EU has over 24 million enterprises — but only a fraction are the large, online-visible firms that stored databases are built around. Apollo and ZoomInfo assemble their data from that online footprint. This is a transparent, evidence-based estimate of how much of the European market falls outside it — and why.
According to Eurostat, the EU's non-financial business economy contains more than 24 million enterprises. Of these, around 93% are micro-enterprises employing fewer than ten people, and 99.8% are SMEs. Large companies — the ones with international visibility, English-language sites and well-maintained LinkedIn pages — make up roughly 0.2%.
That structure has a direct consequence for B2B data: the overwhelming majority of European companies are small, local and non-English-speaking. Their decision-makers are exactly the people who do not maintain the public online profiles that aggregator databases harvest — yet every one of these firms is fully recorded in a national company register.
Databases like Apollo and ZoomInfo do not "know" companies. They assemble records from three sources: contributory networks (users sharing their contacts), purchased lists, and web scraping. Each of these is biased toward firms with a strong, English-language, public online footprint — which in practice means the US technology and SaaS sector.
A 9-person logistics firm in Lyon, a family-owned machine shop near Stuttgart, or a local accountancy in Tampere rarely enters any of those pipelines. But each is fully documented in Infogreffe, the Handelsregister or the PRH and on its own website. The data exists — it simply is not in the database.
We do not claim to know exactly how many European companies each database holds — vendors do not publish country-level coverage. Instead we offer a transparent estimate based on the market's structure:
| Segment | Share of EU firms | Online-footprint coverage |
|---|---|---|
| Large + mid (50+ employees) | ~1–2% | Good — usually in databases |
| Small (10–49 employees) | ~5–6% | Variable — often partial |
| Micro (1–9) + sole traders | ~92–93% | Weak — systematically under-represented |
Shares: Eurostat EU enterprise size distribution (rounded). Coverage column: AtlasForgeX's reading of the stored-database collection model.
are likely under-represented or entirely absent from online-footprint B2B databases — because they are small, local and non-English-speaking. This is an estimate, not a measured figure: it follows from the fact that micro-enterprises (~93% of all EU firms) are precisely the segment the collection model skips. The exact share varies by database, country and industry.
Enterprise counts and size distribution: Eurostat, Structural Business Statistics and the EU SME annual report (ec.europa.eu/eurostat). Figures rounded; they vary slightly by year and definition of the business economy.
Coverage estimate: AtlasForgeX's analysis of the publicly described collection model of stored databases (contributory networks, purchased lists, scraping) against the EU enterprise size distribution. "20 million+" is a structure-based estimate, not a figure measured from any database.
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