Company lists · Data verified August 2026

Top 12 Cybersecurity staffing based in Estonia

Name: Cybersecurity staffing based in Estonia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 33 companies tracked

There are 33 cybersecurity staffing headquartered in Estonia (RevenueBase, August 2026). RevenueBase tracks 210 professional contacts across them, including 46 with verified work emails and 4 with mobile numbers. Tallinn is the largest hub.

This list covers cybersecurity staffing headquartered in Estonia, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

33Companies

210Contacts tracked

46Verified emails

4Mobile numbers

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The 12 largest cybersecurity staffing based in Estonia

Ranked by team size

Top 12 of 33 cybersecurity staffing based in Estonia, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Datami Cybersecurity Services	Tallinn	11-50	24	3
2	Clarified Security OÜ	Tallinn	11-50	21	18
3	Astarios Labs	Tallinn	11-50	13	5
4	Sekurno Cybersecurity	Tallinn	1-10	11	4
5	Talgen Cybersecurity	Tallinn	11-50	9	4
6	Octicode	Tallinn	1-10	7	2
7	cybertech.global	Tartu	1-10	6	2
8	Cybertex Security	Tallinn	1-10	3	2
9	Cybers	City Centre	51-200	3	1
10	Cyberross OU	Tallinn	11-50	3	1
11	Instar Talent	Tallinn	1-10	2	2
12	cyberwise.space	Tallinn	1-10	1	1

Showing 12 of 33 cybersecurity staffing based in Estonia

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Cybersecurity staffing based in Estonia at a glance

As of Aug 28, 2026

1-10Median size (employees)

TallinnLargest hub · 27 HQs

4Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Cybersecurity staffing by metro

Metro	Companies
Cybersecurity staffing in Tallinn	27
Cybersecurity staffing in Peetri	1
Cybersecurity staffing in Tartu	1
Cybersecurity staffing in Tallin	1
Cybersecurity staffing in City Centre	1

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “cybersecurity staffing”, with match quality audited by blind human judging, and headquartered in Estonia.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many cybersecurity staffing are there based in Estonia?

There are 33 cybersecurity staffing headquartered in Estonia as of August 2026 (RevenueBase).

What is the largest company on this list?

Datami Cybersecurity Services, headquartered in Tallinn, tops this list with the largest team on record.

Which city has the most cybersecurity staffing?

Tallinn leads with 27 headquartered companies, followed by Peetri (1) and Tartu (1).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 46 verified decision-maker contacts tracked across these 33 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph, the same data that powers RevenueBase's B2B data products and the free research portal.