Company lists · Data verified August 2026

Top 12 Ad tech software companies based in Tallinn, Estonia

Name: Ad tech software companies based in Tallinn, Estonia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 32 companies tracked

There are 32 ad tech software companies headquartered in Tallinn, Estonia (RevenueBase, August 2026). RevenueBase tracks 258 professional contacts across them, including 53 with verified work emails and 3 with mobile numbers. Tallinn is the largest hub.

This list covers ad tech software companies headquartered in Tallinn, 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.

32Companies

258Contacts tracked

53Verified emails

3Mobile numbers

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The 12 largest ad tech software companies based in Tallinn, Estonia

Ranked by team size

Top 12 of 32 ad tech software companies based in Tallinn, 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	Attekmi	Tallinn	11-50	29	11
2	NEXD	Tallinn	11-50	22	13
3	Shuttle99	Tallinn	11-50	15	6
4	ALL Media Digital	Tallinn	11-50	13	2
5	Ejecutivo Comercial	Tallinn	1-10	12	1
6	Waardex	Tallinn	11-50	10	3
7	Mesh ADS	Tallinn	11-50	8	8
8	Primax Digital	Tallinn	11-50	8	3
9	Adhit Media	Tallinn	1-10	5	2
10	Keston Digital Advertising	Tallinn	1-10	3	2
11	SKRO	Tallinn	1-10	1	1
12	Flyads	Tallinn	1-10	1	1

Showing 12 of 32 ad tech software companies based in Tallinn, Estonia

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Ad tech software companies based in Tallinn, Estonia at a glance

As of Aug 28, 2026

11-50Median size (employees)

TallinnLargest hub · 32 HQs

3Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Ad tech software companies by metro in Estonia

Metro	Companies
Ad tech software companies in Tallinn	32
Ad tech software companies in Tallin	2
Ad tech software companies in Kristiine	1
Ad tech software companies in Lasnamae	1
Ad tech software companies in Maakri	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 “ad tech software companies”, with match quality audited by blind human judging, and headquartered in Tallinn, 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 ad tech software companies are there based in Tallinn, Estonia?

There are 32 ad tech software companies headquartered in Tallinn, Estonia as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most ad tech software companies?

Tallinn leads with 32 headquartered companies, followed by Tallin (2) and Kristiine (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 53 verified decision-maker contacts tracked across these 32 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.