Company lists · Data refreshed September 2026

Top 24 B2B digital advertising agencies based in Slovenia

RevenueBase identified 86 B2B digital advertising agencies headquartered in Slovenia as of September 2026 and tracks 418 professional contacts across them, including 114 with verified work emails and 19 with mobile numbers. Ljubljana is the largest hub.

This list covers B2B digital advertising agencies headquartered in Slovenia, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 23, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 23, 2026 86% judged on-target in blind review
86Companies
418Contacts tracked
114Verified emails
19Mobile numbers
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The 24 largest B2B digital advertising agencies based in Slovenia

Ranked by team size
Top 24 of 86 B2B digital advertising agencies based in Slovenia, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to B2B digital advertising agencies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceLjubljana, SloveniaHQ checked Sep 23, 202651-20037 contacts →

Partial evidence

“Digital done differently.”

Source: RevenueBase Database · checked Sep 23, 2026
2Partial evidenceLjubljana, SloveniaHQ checked Sep 23, 202611-5021 contacts →

Partial evidence

“Flat Circle is a Performance Advertising specialized agency.”

Source: RevenueBase Database · checked Sep 23, 2026
3Partial evidenceLjubljana, SloveniaHQ checked Sep 23, 202611-5019 contacts →

Partial evidence

“Sonce.net launched in as one of the first digital creative shops in Slovenia, preceding the rise of social media, Gmail, 24/7 touch-points and 360 engagements.”

Source: RevenueBase Database · checked Sep 23, 2026
4Partial evidenceLjubljana, SloveniaHQ checked Sep 23, 202611-5018 contacts →

Partial evidence

“Red Orbit is a digital marketing agency specialized in search engine marketing and web analytics.”

Source: RevenueBase Database · checked Sep 23, 2026
5Partial evidenceRadovljica, SloveniaHQ checked Sep 23, 20261-1014 contacts →

Partial evidence

“We are a marketing agency that helps you enter the digital world with a marketing review of your webpage.”

Source: RevenueBase Database · checked Sep 23, 2026
6Indirect evidenceLjubljana, SloveniaHQ checked Sep 23, 20261-1014 contacts →

Indirect evidence

“Epic.”

Source: RevenueBase Database · checked Sep 23, 2026
7Partial evidenceLjubljana, SloveniaHQ checked Sep 23, 202611-5013 contacts →

Partial evidence

“We are a full service digital marketing agency, with a digital-first approach.”

Source: RevenueBase Database · checked Sep 23, 2026
8Partial evidenceLjubljana, SloveniaHQ checked Sep 23, 202611-5010 contacts →

Partial evidence

“Bid Bid provides Digital marketing solutions, tailor-made for your needs & business goals.”

Source: RevenueBase Database · checked Sep 23, 2026
9Partial evidenceŽalec, SloveniaHQ checked Sep 23, 20261-109 contacts →

Partial evidence

“Dinetix Team features top experts, skilled and extremely creative, with tons of experiences and an unstoppable drive for digital marketing.”

Source: RevenueBase Database · checked Sep 23, 2026
10Strong evidenceLjubljana, SloveniaHQ checked Sep 23, 20261-105 contacts →

Strong evidence

“AS Digital Services is a Ljubljana-based digital marketing business, which specializes in digital advertising.”

Source: RevenueBase Database · checked Sep 23, 2026
11Indirect evidenceLjubljana, SloveniaHQ checked Sep 23, 20261-105 contacts →

Indirect evidence

“PIKA.”

Source: RevenueBase Database · checked Sep 23, 2026
12Strong evidenceLjubljana, SloveniaHQ checked Sep 23, 20261-104 contacts →

Strong evidence

“Medialog is a media marketing agency that features a holistic approach towards media & creative planning, digital advertising and strategy implementation.”

Source: RevenueBase Database · checked Sep 23, 2026
13Partial evidenceLjubljana, SloveniaHQ checked Sep 23, 202611-504 contacts →

Partial evidence

“WE LIVE TO CREATE.* We love local - since we are a full-service advertising agency in Ljubljana.* We think regional - since we are part of the most awarded agency in the Balkans…”

Source: RevenueBase Database · checked Sep 23, 2026
14Partial evidenceLjubljana, SloveniaHQ checked Sep 23, 20261-104 contacts →

Partial evidence

“Nudimo celostne spletne rešitve Stojimo vam ob strani pri pomembnih odločitvah v sodobnem času – pri prvih korakih vašega posla v digitalni prostor.”

Source: RevenueBase Database · checked Sep 23, 2026
15Indirect evidenceSempeter Pri Gorici, SloveniaHQ checked Sep 23, 20261-104 contacts →

Indirect evidence

“Web business?”

Source: RevenueBase Database · checked Sep 23, 2026
16Partial evidenceLjubljana, SloveniaHQ checked Sep 23, 20261-104 contacts →

Partial evidence

“We Scale Your Business ULTIMO IMPERIO is an international digital marketing agency Our ability to move digital marketing boundaries and challenge the status quo lies in a deep…”

Source: RevenueBase Database · checked Sep 23, 2026
17Partial evidenceLjubljana, SloveniaHQ checked Sep 23, 20261-103 contacts →

Partial evidence

“Website: GR8 Marketing Agency is a paid advertising agency headquartered in Ljubljana, Slovenia.”

Source: RevenueBase Database · checked Sep 23, 2026
18Partial evidenceŠkofljica, SloveniaHQ checked Sep 23, 20261-102 contacts →

Partial evidence

“At MASS DATA, we empower marketing agencies with scalable, white-label digital solutions designed to help them grow, without increasing overhead.”

Source: RevenueBase Database · checked Sep 23, 2026
19Indirect evidenceMaribor, SloveniaHQ checked Sep 23, 20261-102 contacts →

Indirect evidence

“AD ON, oglaševanje in marketinške storitve po meri.”

Source: RevenueBase Database · checked Sep 23, 2026
20Strong evidenceMaribor, SloveniaHQ checked Sep 23, 20261-102 contacts →

Strong evidence

“Adverta has a complete digital solution with innovative advertising formats and business model that will bring the money back to publishers.”

Source: RevenueBase Database · checked Sep 23, 2026
21Strong evidenceKoper, SloveniaHQ checked Sep 23, 20261-101 contacts →

Strong evidence

“Mobiuu delivers advertising campaigns all sizes of enterprises by using digital media - mobile, web, social media and other advanced technologies that provide interaction between…”

Source: RevenueBase Database · checked Sep 23, 2026
22Indirect evidenceMetlika, SloveniaHQ checked Sep 23, 20261-101 contacts →

Indirect evidence

“Most Ecommerce brands waste ad spend without even realizing it.”

Source: RevenueBase Database · checked Sep 23, 2026
23Partial evidenceNovo Mesto, SloveniaHQ checked Sep 23, 20261-101 contacts →

Partial evidence

“Poesis je agencija digitalnega marketinga.”

Source: RevenueBase Database · checked Sep 23, 2026
24Partial evidenceLjubljana, SloveniaHQ checked Sep 23, 20261-101 contacts →

Partial evidence

“Newillis is an innovative company leveraging business models with the power of digital- We help Startups to create a growth strategy and find the right communication to reach the…”

Source: RevenueBase Database · checked Sep 23, 2026

Showing 24 of 86 B2B digital advertising agencies based in Slovenia

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B2B digital advertising agencies based in Slovenia at a glance

As of Sep 23, 2026
27.3%Verified-email coverage
4.5%Mobile-number coverage
4.9Average contacts per company
1-10Median size (employees)
40.7%Largest-city concentration · Ljubljana
Sep 23, 2026Page data refreshed

Companies by employee count

1-10
67
11-50
16
51-200
1
1,001-5,000
1
5,001-10,000
1

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

Company record updated

Median 78.0d

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among B2B digital advertising agencies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Slovenia whose own description of what they do matches “B2B digital advertising agencies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names B2B digital advertising agencies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among B2B digital advertising agencies, and records with no verified work email. Companies headquartered outside Slovenia are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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
Every listed company carries at least one verified work email, 114 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 23, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

B2B digital advertising agencies by metro

  • B2B digital advertising agencies in Ljubljana35

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names B2B digital advertising agencies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many B2B digital advertising agencies are there based in Slovenia?

RevenueBase identified 86 B2B digital advertising agencies headquartered in Slovenia as of September 2026, matched on each company's own description of what it does rather than its industry code.

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 B2B digital advertising agencies?

Ljubljana leads with 35 headquartered companies, followed by Maribor (11) and Ljubljana Ljubljana (5).

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 114 verified decision-maker contacts tracked across these 86 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 23, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.