Company lists · Data verified August 2026

Top 18 Enterprise IT infrastructure companies based in Estonia

Name: Enterprise IT infrastructure companies based in Estonia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 38 companies tracked

There are 38 enterprise IT infrastructure companies headquartered in Estonia (RevenueBase, August 2026). RevenueBase tracks 252 professional contacts across them, including 127 with verified work emails and 1 with mobile numbers. Tallinn is the largest hub.

This list covers enterprise IT infrastructure companies 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.

38Companies

252Contacts tracked

127Verified emails

1Mobile numbers

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The 18 largest enterprise IT infrastructure companies based in Estonia

Ranked by team size

Top 18 of 38 enterprise IT infrastructure companies 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	Oixio IT	Tallinn	51-200	77	31
2	Atea Eesti	Tallinn	51-200	39	30
3	Datafox OÜ	Tallinn	11-50	32	28
4	Dcsolution	Tallinn	51-200	12	5
5	Wavecom AS	Tallinn	11-50	10	8
6	Skarcon LTD	Tallinn	11-50	6	3
7	Visioline Infra OÜ	Rakvere	11-50	6	1
8	Serman	Tartu	1-10	5	2
9	Server Simply	Tallinn	1-10	5	2
10	5d Vision	Tartu	1-10	4	4
11	Arvutiämblik	Tallinn	1-10	4	3
12	Diaway	Tallinn	1-10	3	1
13	Greip IT	Tallinn	11-50	2	2
14	Green IT LTD	Tallinn	11-50	1	1
15	Calm Technologies	Tallinn	1-10	1	1
16	Ghost IT	Tallinn	1-10	1	1
17	NEX	Parnu	1-10	1	1
18	Reval IT OÜ	Tallinn	1-10	1	1

Showing 18 of 38 enterprise IT infrastructure companies based in Estonia

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Enterprise IT infrastructure companies based in Estonia at a glance

As of Aug 28, 2026

1-10Median size (employees)

TallinnLargest hub · 29 HQs

1Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Enterprise IT infrastructure companies by metro

Metro	Companies
Enterprise IT infrastructure companies in Tallinn	29
Enterprise IT infrastructure companies in Tartu	3
Enterprise IT infrastructure companies in Parnu	2
Enterprise IT infrastructure companies in Rakvere	1
Enterprise IT infrastructure companies in Kuressaare	1
Enterprise IT infrastructure companies in Peetri	1
Enterprise IT infrastructure companies in Tallin	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 “enterprise IT infrastructure companies”, 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 enterprise IT infrastructure companies are there based in Estonia?

There are 38 enterprise IT infrastructure companies headquartered in Estonia as of August 2026 (RevenueBase).

What is the largest company on this list?

Oixio IT, headquartered in Tallinn, tops this list with the largest team on record.

Which city has the most enterprise IT infrastructure companies?

Tallinn leads with 29 headquartered companies, followed by Tartu (3) and Parnu (2).

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 127 verified decision-maker contacts tracked across these 38 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.