Company lists · Data verified August 2026

Top 13 Cybersecurity consulting firms based in Estonia

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 45 companies tracked

There are 45 cybersecurity consulting firms headquartered in Estonia (RevenueBase, August 2026). RevenueBase tracks 242 professional contacts across them, including 50 with verified work emails and 4 with mobile numbers. Tallinn is the largest hub.

This list covers cybersecurity consulting firms 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.

45Companies

242Contacts tracked

50Verified emails

4Mobile numbers

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The 13 largest cybersecurity consulting firms based in Estonia

Ranked by team size

Top 13 of 45 cybersecurity consulting firms 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	Nordis Global	Tallinn	1-10	15	6
4	Astarios Labs	Tallinn	11-50	13	5
5	Sekurno Cybersecurity	Tallinn	1-10	11	4
6	Octicode	Tallinn	1-10	7	2
7	cybertech.global	Tartu	1-10	6	2
8	Insodus Technologies	Tallinn	11-50	5	3
9	Cybertex Security	Tallinn	1-10	3	2
10	Cybers	City Centre	51-200	3	1
11	Cyberross OU	Tallinn	11-50	3	1
12	Foxworx OÜ	Viimsi Vald	1-10	2	1
13	cyberwise.space	Tallinn	1-10	1	1

Showing 13 of 45 cybersecurity consulting firms based in Estonia

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Cybersecurity consulting firms based in Estonia at a glance

As of Aug 28, 2026

1-10Median size (employees)

TallinnLargest hub · 35 HQs

4Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Cybersecurity consulting firms by metro

Metro	Companies
Cybersecurity consulting firms in Tallinn	35
Cybersecurity consulting firms in Tallin	2
Cybersecurity consulting firms in Tartu Linn	1
Cybersecurity consulting firms in Peetri	1
Cybersecurity consulting firms in Viimsi Vald	1
Cybersecurity consulting firms in Tartu	1
Cybersecurity consulting firms in Lasnamae Linnaosa	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 consulting firms”, 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 consulting firms are there based in Estonia?

There are 45 cybersecurity consulting firms 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 consulting firms?

Tallinn leads with 35 headquartered companies, followed by Tallin (2) and Tartu Linn (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 50 verified decision-maker contacts tracked across these 45 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.