Best B2B Database for Poland 2026 (Comparison)

Introduction: Poland is the sixth largest economy in the EU. Which database will open doors for you?

Poland is one of the fastest-growing B2B markets in Europe. In 2025, nearly 360,000 new companies were added. The digital maturity of many companies still lags behind — which means there is a huge demand for services like marketing, IT, automation, and accounting.

However, reaching out to Polish companies requires the right database — and the right Polish language skills. Polish registries (KRS, CEIDG) lack usable contacts, and global tools have shallow Polish data. This article compares the best B2B databases for the Polish market.

1. DataSend.ai — best for the Polish market (all-in-one)

DataSend.ai covers the Polish market with 2.58 million companies and combines the database with campaigns and CRM.

What it offers for Poland: 2.58M companies with verified contacts — emails, phones, websites with a bounce rate below 5%. Filtering by all 16 voivodeships, industry, revenue, and size. Registration data (KRS, NIP, REGON).

And most importantly — outreach tools: Email campaigns with AI personalization in Polish. AI Grammar Variables — correct declension: "w Warszawie," "z Krakowa," "w branży budowlanej." For Polish with 7 cases, this is crucial. Automatic follow-ups, Unibox with AI classification, built-in CRM, and warmup.

Why it's the best: The deepest coverage of the Polish market among all-in-one platforms. The only one that automatically handles Polish grammar with 7 cases. Database and outreach in one place.

Price: Free ($0), Freelancer ($89/month), Founder ($199/month).

2. KRS and CEIDG — official registries (free)

KRS (business companies) and CEIDG (entrepreneurs) are official state registries.

Strengths: Free and official. Registration data, KRS/NIP/REGON numbers, PKD codes.

Where it falls short: KRS lacks contacts. CEIDG has partial data, but ~80% is unusable. No outreach tools. Technical limits on bulk downloads.

For whom: Company verification, not client acquisition.

3. BizMachine — sales intelligence for CEE

BizMachine covers Poland as part of the CEE region.

Strengths: Poland is part of a 5-country coverage. 55+ business signals. In-depth segment data.

Where it falls short: Lacks built-in outreach sequences. Custom pricing. Focus on larger teams.

For whom: Larger teams working with signals.

4. Apollo.io — global tool

Apollo has Polish data as part of a global database.

Strengths: Built-in sequences. Freemium. Large database.

Where it falls short: Accuracy of Polish data is lower. Bounce rate 15–25% in Europe. No Polish grammatical personalization. Per-seat + credits.

For whom: Teams combining Poland with the US market.

5. Local Polish data providers

There are local providers in the Polish market that aggregate data from KRS, CEIDG, and REGON.

Strengths: Local Polish data. Market knowledge.

Where it falls short: Mostly just data, no built-in campaigns. You export and handle outreach elsewhere. No AI personalization.

For whom: Teams that want just data and have their own outreach.

How to choose for the Polish market

For client acquisition (all-in-one): DataSend.ai — 2.58M companies, campaigns, and AI personalization in Polish. For company verification (free): KRS and CEIDG. For signals (larger teams): BizMachine. For a global mix: Apollo.

Why grammar matters in the Polish market

Polish is one of the most grammatically complex languages in the world — 7 cases, different forms based on gender and number. An email with grammatical errors in Polish looks immediately unprofessional and reveals a mass campaign.

"W Warszawie" (not "w Warszawa"). "Dla branży IT" (not "dla IT branża"). "Z Krakowa" (not "z Kraków"). AI Grammar Variables in DataSend.ai generate these forms automatically — so your emails sound natural even when sending hundreds of messages.

Conclusion

The Polish market is a huge opportunity — rapidly growing, with low digital maturity and high demand for services. But reaching out to Polish companies requires local data and the right Polish language skills.

DataSend.ai covers 2.58 million Polish companies, providing you with campaigns with AI personalization in Polish, all in one place.

Want to reach out to Polish companies? DataSend.ai — 2.58M companies, AI personalization in Polish, campaigns, and CRM all in one.

Try DataSend.ai for free →