What Is CEIDG? How to Check Company Data – 2026 Guide

If you work in B2B sales, accounting, or compliance, you quickly discover that CEIDG is one of the most important sources of information about Polish businesses. The Central Registration and Information on Business (Centralna Ewidencja i Informacja o Działalności Gospodarczej) collects data on sole proprietorships, partners in civil partnerships, and entrepreneurs who registered through simplified procedures. In 2026, the register is fully digital, public, and updated continuously — which makes it a foundational tool for contractor verification and prospecting.

In this guide, we explain what CEIDG is, what information you can extract from it, how to check company data step by step, and what to watch out for when you build sales or due diligence processes on top of this data.

1. What Is CEIDG and Who Is Listed There?

CEIDG is a government register maintained by the minister responsible for economic affairs. You will find primarily:

Sole proprietorships (JDG) run by natural persons.
Partners in civil partnerships — their data is also recorded in CEIDG.
Entrepreneurs using simplified registration (for example through Biznes.gov.pl).

You will not find limited liability companies or joint-stock companies there — those entities are registered in the National Court Register (KRS). That is a fundamental distinction you must understand before you start building prospect lists or verifying contractors. Read more about the difference between KRS and CEIDG in our article KRS vs CEIDG – differences and company registry data.

CEIDG plays three roles at once:

Legal register — confirms that a person legally conducts business activity.
Public information source — anyone can check basic company data.
Operational database for authorities — data flows to institutions including ZUS, the tax office, and GUS.

The official register portal is available at ceidg.gov.pl.

2. What Data Does a CEIDG Entry Contain?

Every active CEIDG entry is a set of fields that B2B teams can use for segmentation, offer personalization, and contractor credibility assessment. The most important include:

In 2026, CEIDG also provides information about suspension or resumption of activity, which is critical when assessing whether a company actually operates. A B2B seller who sends an offer to a suspended business wastes budget and sender reputation.

Statistical data on the number of new companies by voivodeship and industry is published by the Central Statistical Office (stat.gov.pl). Combining CEIDG data with GUS reports helps you assess whether a market segment is growing or shrinking — important context when planning prospecting.

3. How to Check Company Data in CEIDG – Step by Step

Verifying a contractor or prospect in CEIDG takes a few minutes if you know what to look for. Here is a proven workflow:

Step 1: Open the search tool

Go to ceidg.gov.pl and open the entity search. You can search by:

NIP,
REGON,
entrepreneur's last name,
company name (if one was assigned).

Step 2: Verify entry status

Make sure the entry status is "Active". Suspended or removed entries are not valid sales targets or credible contractors.

Step 3: Check the business start date

This date tells you how "fresh" the lead is. Companies registered in the last 7–30 days are most open to new suppliers — they have not yet established stable commercial relationships. This is the foundation of a fresh B2B leads strategy.

Step 4: Analyze PKD codes

The main PKD code defines the dominant activity. Additional codes show whether the company plans to expand its offer. If you sell IT services, look for codes from section J (for example 62.01.Z – software-related activity).

Step 5: Compare addresses

CEIDG contains two addresses: correspondence address and place of business. For companies offering local services (cleaning, catering, installation), the place of business matters, not the owner's home address.

Step 6: Cross-check with other registers

CEIDG is a starting point, not the end of verification. Also check the contractor in:

VAT taxpayer list (White List),
REGON in the GUS database (stat.gov.pl),
KRS — if the company operates under a different legal form.

4. CEIDG in B2B Prospecting – Practical Applications

For sales teams, CEIDG is not only a due diligence register. It is a lead generation engine if you know how to read it:

Early contact with new companies. Hundreds of new businesses register in Poland every day. Accounting, marketing, insurance, IT, office furniture — all these industries can reach an entrepreneur before they choose permanent suppliers.

Segmentation by PKD and location. Instead of sending a mass offer to "all companies," you filter by PKD code and voivodeship. Result: higher response rate and shorter sales cycle.

Communication personalization. Knowing that a company registered three days ago in the construction industry in Wrocław, you can write an email with specific context instead of a generic offer.

Verification before signing a contract. Before sending a proforma invoice, check in CEIDG whether the contractor is active, whether the NIP matches, and whether the correspondence address raises concerns.

If you want to turn this data into a concrete sales process, read our guide: How to use new company data in B2B sales.

5. CEIDG Limitations – What the Register Does NOT Contain

Awareness of limitations protects you from prospecting and compliance mistakes:

No phone number or email — these fields are optional. Many companies deliberately omit them to avoid spam.
No capital companies — sp. z o.o., S.A., and limited partnerships are in KRS, not CEIDG.
Delays in external data — aggregators and B2B tools may lag the official register by 24–48 hours.
No financial data — CEIDG does not show revenue, profit, or debt. For that you need KRS, GUS reports, or commercial scoring databases.
False signals — an entry with 15 PKD codes from different industries may indicate lack of strategy, not versatility.

6. CEIDG vs. Commercial Company Databases – When to Use Which?

The official register is free and credible, but not convenient for daily prospecting. Manually searching ceidg.gov.pl every morning kills sales team productivity.

The best strategy in 2026 is combining both approaches: CEIDG as the source of truth for verification, and an aggregating tool as the prospecting engine. See how the new companies database from CEIDG in 2026 works.

7. CEIDG and GUS Statistics – The Full Market Picture

A single CEIDG entry tells you about one company. To understand the broader context — how many similar entities are created in your region, how PKD structure changes in a voivodeship — use data from the Central Statistical Office (stat.gov.pl). GUS reports on entrepreneurship, company demographics, and economic sectors help you assess market potential before you invest budget in prospecting. Combining micro-data from CEIDG (a specific company, a specific NIP) with macro-data from stat.gov.pl (industry trends, registration dynamics) is the approach used by the best B2B analytics teams in Poland.

8. GDPR, Cold Email, and CEIDG Data

Data in CEIDG is public, but that does not mean you can send unlimited spam. For B2B prospecting to sole proprietorships, GDPR rules apply:

Contact based on legitimate interest — your offer must relate to the recipient's business activity.
Provide easy opt-out from further correspondence.
Do not process data in a way that conflicts with the entrepreneur's expectations.

Registry data (NIP, name, address) can be legally used for verification and initial B2B contact. Owner personal data (first name, last name) requires more caution — use it only in a business context.

Summary

CEIDG is a public register of sole proprietorships and civil partnership partners, maintained by the state and available free of charge at ceidg.gov.pl. It contains NIP, REGON, PKD codes, business start date, addresses, and entry status — everything you need to verify a contractor and build a B2B prospect list.

In 2026, the key to success is not just "checking CEIDG," but quickly turning that data into action — before competitors do. Start with daily monitoring of new entries in your niche and combine it with personalized outreach.

FAQ – Frequently Asked Questions

1. What is CEIDG in simple terms? CEIDG is a government online register containing data on sole proprietorships and civil partnership partners in Poland. Anyone can check basic entrepreneur information there.

2. Can I find a limited liability company in CEIDG? No. Limited liability companies, joint-stock companies, and other capital entities are registered in the National Court Register (KRS). CEIDG covers sole proprietorships and civil partnership partners only.

3. Is CEIDG data up to date? Yes. The system processes applications continuously. External tools may have a short delay (usually up to 24 hours).

4. Can I legally use CEIDG data for cold email? Yes, provided you comply with GDPR — the offer must relate to the recipient's business activity, and the recipient must be able to opt out of further contact.

5. Where can I check statistics on new companies in Poland? Macroeconomic data and entrepreneurship statistics are published by the Central Statistical Office at stat.gov.pl. Detailed data on individual entities is available in CEIDG.