B2B Contact Data in Estonia: The Complete Guide
Updated 2026-08-14 · 8 min read
B2B contact data is business information about a company — its name, registry code, field of activity, location, general email, phone number, and board members. Unlike personal data, most of this is public information in Estonia, sourced from companies' own public channels.
In this guide we look at what separates a usable dataset from a plain oversized file, how to evaluate quality before buying, and what Estonian law says about sending cold emails.
What B2B contact data actually includes
A usable B2B record is more than just a name and an email. A sales team needs enough context to decide whether a company even fits the target audience.
- Company name and registry code — lets you update records in your CRM later and avoid duplicates
- EMTAK activity code — the most important basis for segmentation in Estonia
- Legal form (OÜ, AS, MTÜ, sole proprietor, general partnership) — filters out forms you don't sell to
- County or city — for regional campaigns
- Employee count and revenue range — to gauge company size
- General email and phone — the contact channel
- Board member names — for personalization and call preparation
Where the data comes from
Company name, registry code, activity field, address, legal form and board members are official public information. Revenue and employee-count figures come from annual reports.
Contact data — the general email and phone number — comes from companies' own public sources: website contact pages, business register contact fields, and public directories. No trustworthy database should contain personal emails or numbers of private individuals.
Kontabase compiles its datasets from exactly these sources and marks which fields are filled in for each record and which are missing. This matters: roughly a third of Estonian companies have no public revenue or employee-count figure, and an honest database says so directly rather than filling the gap with a guessed number.
Quality checklist before you buy
Ask the seller these seven questions before paying. If you don't get answers, don't buy.
- What source does the data come from and when was it last updated?
- What share of records include an email address, and what share a phone number?
- Can I get a free sample from the exact dataset before buying, not a generic demo?
- Are records deduplicated by registry code?
- Have deleted and liquidated companies been removed?
- Can I filter by activity, region, and size before paying?
- What file format will I get, and can I download it immediately?
Legal use: what's allowed in Estonia
A legal entity's general contact (info@, sales@, the company phone number) is not personal data in the same sense as an individual's data. Sending a business offer to a general company contact is allowed in Estonia if the offer is related to the recipient's economic activity, the sender is clearly identifiable, and every email includes a working opt-out.
A named work email (firstname.lastname@company.ee) counts as personal data. Using it requires a legitimate interest, which must be documented, and the person must be able to opt out. Opt-out requests must be honored immediately and permanently — keep a separate suppression list and check it before every new campaign.
How to actually get results from a dataset
A large list doesn't sell. A narrow list sells. In practice, 400 carefully filtered companies from one industry outperform 40,000 random rows.
Start with one EMTAK sector and one size range, write a specific offer for that segment, send a sequence of 3–4 emails, and measure the response rate. If the segment works, expand to an adjacent sector. If it doesn't, change the offer — not the list size.
Frequently Asked Questions
- Is buying B2B contact data legal in Estonia?
- Yes. The data is public, and companies' general contacts are published for the purpose of business communication. What matters is that the offer you send relates to the recipient's economic activity and every email includes an opt-out.
- How quickly does contact data become outdated?
- Expect about 20–30% change per year: companies close, change domains, or replace board members. A dataset should be refreshed at least every six months.
- Can I get a sample before buying?
- Yes. Kontabase provides a free 25-row sample from exactly the filters you've chosen, so you see real data quality, not a marketing demo.
Build your list and try it for free
Choose an industry, county, and company size, see the record count and price instantly, and download a free 25-row sample.