Company lists · Data verified August 2026

Top 12 Ad tech consulting firms based in Slovenia

Name: Ad tech consulting firms based in Slovenia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 29 companies tracked

There are 29 ad tech consulting firms headquartered in Slovenia (RevenueBase, August 2026). RevenueBase tracks 174 professional contacts across them, including 70 with verified work emails and 7 with mobile numbers. Ljubljana is the largest hub.

This list covers ad tech consulting firms headquartered in Slovenia, 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.

29Companies

174Contacts tracked

70Verified emails

7Mobile numbers

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The 12 largest ad tech consulting firms based in Slovenia

Ranked by team size

Top 12 of 29 ad tech consulting firms based in Slovenia, 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	IPROM	Ljubljana	51-200	37	29
2	sonce.net	n/a	11-50	19	6
3	Asteriosoft	Ljubljana	11-50	17	7
4	Agencija Epic	Ljubljana Ljubljana	1-10	15	8
5	Castoola	Murska Sobota	11-50	8	7
6	AS Digital Services	Ljubljana	1-10	5	3
7	Unanana, Digitalna Produkcija	Ljubljana	1-10	4	3
8	Mass Data Digital Consulting	Skofljica	1-10	3	3
9	23agency	Kamnik	1-10	2	1
10	Adverta	Maribor	1-10	2	1
11	Newillis Business Consulting	Ljubljana	1-10	1	1
12	Clicky Climbers	Metlika	1-10	1	1

Showing 12 of 29 ad tech consulting firms based in Slovenia

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Ad tech consulting firms based in Slovenia at a glance

As of Aug 28, 2026

1-10Median size (employees)

LjubljanaLargest hub · 12 HQs

7Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Ad tech consulting firms by metro

Metro	Companies
Ad tech consulting firms in Ljubljana	12
Ad tech consulting firms in Ljubljana Ljubljana	2
Ad tech consulting firms in Maribor	2
Ad tech consulting firms in Nova Gorica Nova Gorica	1
Ad tech consulting firms in Trzin Domzale	1
Ad tech consulting firms in Metlika	1
Ad tech consulting firms in Skofljica	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 consulting firms”, with match quality audited by blind human judging, and headquartered in Slovenia.
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 consulting firms are there based in Slovenia?

There are 29 ad tech consulting firms headquartered in Slovenia as of August 2026 (RevenueBase).

What is the largest company on this list?

IPROM, headquartered in Ljubljana, tops this list with the largest team on record.

Which city has the most ad tech consulting firms?

Ljubljana leads with 12 headquartered companies, followed by Ljubljana Ljubljana (2) and Maribor (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 70 verified decision-maker contacts tracked across these 29 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.