Company lists · Data refreshed September 2026

Top 9 Enterprise AI software startups based in Ljubljana, Slovenia

RevenueBase identified 27 enterprise AI software startups headquartered in Ljubljana, Slovenia as of September 2026 and tracks 203 professional contacts across them, including 115 with verified work emails. Across Slovenia, Ljubljana is the largest hub for this category.

This list covers enterprise AI software startups headquartered in Ljubljana, 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 29, 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 29, 2026 86% judged on-target in blind review
27Companies
203Contacts tracked
115Verified emails
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The 9 largest enterprise AI software startups based in Ljubljana, Slovenia

Ranked by team size
Top 9 of 27 enterprise AI software startups based in Ljubljana, Slovenia, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise AI software startups: 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
1Indirect evidenceLjubljana, SloveniaHQ checked Sep 29, 202651-20054 contacts →

Indirect evidence

“At ADD we build the digital foundations that turn data into decisions, and ideas into action.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceLjubljana, SloveniaHQ checked Sep 29, 202611-5037 contacts →

Indirect evidence

“Verjamemo v moč tehnologije za dobro vseh.”

Source: RevenueBase Database · checked Sep 29, 2026
3Strong evidenceLjubljana, SloveniaHQ checked Sep 29, 202611-5023 contacts →

Strong evidence

“Medius is an award-winning software engineering company that helps medium size and enterprise companies achieve higher business impact when it comes to implementing data-driven…”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceLjubljana, SloveniaHQ checked Sep 29, 202611-5022 contacts →

Partial evidence

“QLECTOR Ltd is developing artificial intelligence-based solutions for manufacturing, logistics, and other industries powered by the QLECTOR LEAP AI Platform.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceLjubljana, SloveniaHQ checked Sep 29, 20261-109 contacts →

Partial evidence

“zerodays is a software development team specializing in end-to-end custom solutions.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceLjubljana, SloveniaHQ checked Sep 29, 20261-107 contacts →

Indirect evidence

“Avior is an artificial intelligence solution provider, specialized in advanced machine learning.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceLjubljana, SloveniaHQ checked Sep 29, 20261-103 contacts →

Partial evidence

“A data science and AI consulting agency.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceLjubljana, SloveniaHQ checked Sep 29, 20261-101 contacts →

Partial evidence

“Agital podjetjem pomaga razumeti in vpeljati AI v realne poslovne procese, podatke in sisteme, od osebnih pomočnikov do procesno vpetih AI rešitev.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceLjubljana, SloveniaHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

“Naše podjetje se ukvarja s ponujanjem rešitev umetne inteligence za delo in osebno življenje.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 9 of 27 enterprise AI software startups based in Ljubljana, Slovenia

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Enterprise AI software startups based in Ljubljana, Slovenia at a glance

As of Sep 29, 2026
56.7%Verified-email coverage
7.5Average contacts per company
1-10Median size (employees)
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
21
11-50
5
51-200
1

Email recency for this list is measured across the whole Slovenia list rather than for Ljubljana, so it is reported there. Company counts and contact totals on this page are exact for Ljubljana, over 27 companies.

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 enterprise AI software startups, 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 Ljubljana, Slovenia whose own description of what they do matches “enterprise AI software startups”. 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 enterprise AI software startups), 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 enterprise AI software startups, and records with no verified work email. Companies headquartered outside Ljubljana 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, 115 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 29, 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.

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 enterprise AI software startups, 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 enterprise AI software startups are there based in Ljubljana, Slovenia?

RevenueBase identified 27 enterprise AI software startups headquartered in Ljubljana, 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?

ADD D.O.O, headquartered in Ljubljana, tops this list with the largest team on record.

Which city in Slovenia has the most enterprise AI software startups?

Ljubljana leads Slovenia with 27 headquartered companies, followed by Maribor (6) and Ljubljana Ljubljana (3).

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 115 verified decision-maker contacts tracked across these 27 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 29, 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.