B2B Market in the Czech Republic in Numbers — 3.56 Million Entities | DataSend.ai

Introduction: The Largest Register in Central Europe

The Czech Republic has a remarkably vibrant business environment. With nearly 11 million inhabitants, there are over 3.5 million registered economic entities — one of the highest densities in all of Europe.

If you sell services to companies in the Czech Republic, it presents a huge opportunity on one hand, but also a challenge: how do you navigate such a vast number and find the companies that need exactly your service?

This article summarizes specific numbers from the Register of Economic Entities of the Czech Statistical Office and shows how to practically work with them when searching for clients.

1. Total Number: 3.56 Million Entities, of Which 2.94 Million Are Active

According to data from the Register of Economic Entities (RES) of the Czech Statistical Office, aggregated by the open database CzechData.cz, the Czech register contains 3,565,030 economic entities.

Of these, 2,935,937 are active — approximately 82%.

Compare this to Slovakia, where only 47.3% of registered entities are active. The Czech register is significantly "cleaner" — it contains a smaller proportion of non-existent companies. This is good news for data work, but it doesn’t mean that all active entities are reachable.

The register is updated twice a month, which is above average frequency given the volume of 3.5 million records.

2. The Difference Between an Active Entity and a Reachable Company

Here’s a number that might surprise you:

3,565,030 — total number of entities in the register. 2,935,937 — number of active entities. 720,000+ — number of Czech companies with verified contact details in the DataSend.ai database.

Why such a difference? Because an "active entity in the register" and a "company you can email" are not the same.

A large portion of active entities are self-employed individuals running alongside employment without real business activity, homeowners' associations (SVJ), non-profit organizations, or companies without any digital footprint — no website, no corporate email, no phone.

If you were to send a campaign to all "active" entities, most emails would go nowhere. Therefore, when selecting a database, it doesn’t matter how many records it contains, but how many of them have verified and functional contacts.

3. Market Structure: What You Can Find in the Czech Register

The Register of Economic Entities includes for each entity identification (ICO, VAT number, trade name), registered address, classification of activity (CZ-NACE primary and secondary), legal form, employee count category, and date of establishment or dissolution.

Legal forms include limited liability companies (s.r.o.), joint-stock companies (a.s.), self-employed individuals (OSVČ), public trading companies, SVJ, state contribution organizations, organizational components of the state, and others.

Industry classification operates on the basis of CZ-NACE — the Czech version of the European classification of economic activities. Among the most sought-after categories are IT companies, construction, gastronomy, real estate, and the automotive industry.

Geographic distribution is concentrated in three main centers — Prague, Brno, and Ostrava — plus the remaining 27 larger cities.

4. Why the Czech Market Is Attractive for B2B Services

High density of companies. 3.5 million entities for 11 million inhabitants means that even narrow specialization has a sufficient market size. If you focus on "e-shops with a turnover of over 5 million CZK in Prague and surroundings," we are still talking about thousands of potential clients.

Developed digital market. The Czech Republic has one of the strongest e-commerce markets in the region. Companies are accustomed to investing in online presence, which means a higher willingness to pay for marketing and technical services.

A cleaner register than in neighboring countries. 82% of active entities means less dead data and a lower bounce rate in campaigns — provided you work with verified contacts.

Language proximity. For Slovak suppliers, the Czech market is a natural first step in expansion. The same language, similar business culture, no language barrier.

5. How to Work with This Data Practically

Step 1: Narrow down your target group before you start.

With 2.9 million active entities, the strategy of "I will reach out to Czech companies" is not usable. You need a filter for industry, size, region, and ideally also turnover.

Step 2: Distinguish between self-employed individuals and companies.

A large part of the register consists of self-employed individuals. If you sell a service for tens of thousands of crowns a month, target s.r.o. and a.s., not self-employed individuals. The filter for legal form is key here.

Step 3: Choose between Prague and the regions.

Prague has the highest density of companies and the highest budgets — but also the most competition among suppliers. Brno, Ostrava, and regional cities have fewer companies but significantly fewer offers in the inbox.

Step 4: Work with verified contacts.

In DataSend.ai, there are 720,000+ Czech companies with verified emails, phones, and websites. Contacts are checked for deliverability with a bounce rate below 5%, so your campaign doesn’t end up in spam due to dead addresses.

6. Where You Can Verify the Data Yourself

All the numbers mentioned come from public sources and you can check them for free.

CzechData.cz is an open database of Czech economic entities built on data from the Register of Economic Entities of the Czech Statistical Office. It is free, no registration required, updated twice a month, and provided as open data.

You can find a company by ICO, name, or address, browse the register by cities, industries, and legal forms, and verify whether an entity is active or dissolved.

So if you want to verify a specific company before reaching out or signing a contract, you can do it for free. And if you want to not only verify companies but also contact them, that’s what DataSend.ai is for, with verified contact details.

7. The Czech Republic as Part of a Broader Strategy

If you are already operating in Slovakia, the Czech market is a logical next step — it is about three times larger, linguistically accessible, and commercially close.

And if you plan to go further, DataSend.ai covers 7 countries in Central Europe, including Germany, Poland, Austria, Switzerland, and Hungary. The same filters, the same interface, just a different country — including AI personalization that handles grammatically correct forms in each of these languages.

Expansion is therefore not a matter of a new tool, but a change of one filter.

Conclusion: A Large Market Requires Precise Targeting

The Czech register contains 3.56 million entities, of which 2.94 million are active. It is one of the densest business markets in Europe and also one of the cleanest registers in the region.

But the size of the market without precise targeting is a disadvantage, not an advantage. The larger the market, the more important it is to know exactly who you are addressing — and to have data that works.

Do you want to see how many Czech companies match your target group? DataSend.ai — 720,000+ Czech companies with verified contacts, filters by industry, region, turnover, and size.

Try DataSend.ai for free →