Company lists · Data refreshed September 2026

Top 25 Software engineering firms based in Ljubljana, Slovenia

Name: Software engineering firms based in Ljubljana, Slovenia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 76 companies tracked

RevenueBase identified 76 software engineering firms headquartered in Ljubljana, Slovenia as of September 2026 and tracks 1,656 professional contacts across them, including 729 with verified work emails and 26 with mobile numbers. Ljubljana is the largest hub.

This list covers software engineering firms 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 13, 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 13, 2026 86% judged on-target in blind review

76Companies

1,656Contacts tracked

729Verified emails

26Mobile numbers

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The 25 largest software engineering firms based in Ljubljana, Slovenia

Ranked by team size

Top 25 of 76 software engineering firms based in Ljubljana, Slovenia, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to software engineering firms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	CREA	Partial evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	n/a	227 contacts →
	Partial evidence “CREA is a consulting and software developing firm focused comprehensively on business process management, business web applications, secure e-business and related technologies.” Source: RevenueBase Database · checked Sep 13, 2026
2	SRC	Indirect evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	201-500	214 contacts →
	Indirect evidence “SRC is an information technology company that digitally transforms corporations, financial institutions and the public administration.” Source: RevenueBase Database · checked Sep 13, 2026
3	Agitavit Solutions	Partial evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	51-200	90 contacts →
	Partial evidence “Agitavit Solutions is a software development company specialized in consulting and software development for business customers.” Source: RevenueBase Database · checked Sep 13, 2026
4	Smartis	Indirect evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	51-200	68 contacts →
	Indirect evidence “We are IT service provider for different industry and public sectors.” Source: RevenueBase Database · checked Sep 13, 2026
5	Setronica	Partial evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	51-200	64 contacts →
	Partial evidence “With more than two decades of experience, Setronica delivers world-class custom software development to organizations ranging from start-ups to Fortune 100 companies.” Source: RevenueBase Database · checked Sep 13, 2026
6	Ixtlan Team	Indirect evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	51-200	63 contacts →
	Indirect evidence “Izdelujemo tehnološko moderne informacijske sisteme, prilagojene potrebam naročnika.” Source: RevenueBase Database · checked Sep 13, 2026
7	Unistar LC D.O.O., Ljubljana	Indirect evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	51-200	57 contacts →
	Indirect evidence “Unistar LC is a company with extensive experience in the field of IT, since early 1989.” Source: RevenueBase Database · checked Sep 13, 2026
8	Marand D.O.O	Partial evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	51-200	55 contacts →
	Partial evidence “Marand is a customer-centric software development company providing flexible, standard-based products & solutions for communication service providers and insurers.” Source: RevenueBase Database · checked Sep 13, 2026
9	ADD D.O.O	Indirect evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	51-200	54 contacts →
	Indirect evidence “At ADD we build the digital foundations that turn data into decisions, and ideas into action.” Source: RevenueBase Database · checked Sep 13, 2026
10	Biosistemika	Partial evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	11-50	49 contacts →
	Partial evidence “BioSistemika specializes in custom software development, digitalization consulting, and development of laboratory software products.” Source: RevenueBase Database · checked Sep 13, 2026
11	Engineering Insights	Partial evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	11-50	37 contacts →
	Partial evidence “We focus on delivering complex software solutions for our clients.” Source: RevenueBase Database · checked Sep 13, 2026
12	Clever Craft D.O.O	Indirect evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	51-200	37 contacts →
	Indirect evidence “We are an IT Solution Provider specializing in building tailored applications that address capability gaps and solve complex challenges across the technology stack, empowering…” Source: RevenueBase Database · checked Sep 13, 2026
13	CRMT	Indirect evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	11-50	33 contacts →
	Indirect evidence “CRMT is a leading regional consulting company specializing in Data Management, Corporate Performance Management, and Regulatory Reporting.” Source: RevenueBase Database · checked Sep 13, 2026
14	Osir-Erpis	Partial evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	11-50	33 contacts →
	Partial evidence “OSIR-ERPIS is a business consulting and software development company founded in 2003.” Source: RevenueBase Database · checked Sep 13, 2026
15	Perftech D.O.O	Partial evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	51-200	30 contacts →
	Partial evidence “The company’s main activities are: Providing IT solutions, development of application software, planning information systems, selling computer and communications equipment…” Source: RevenueBase Database · checked Sep 13, 2026
16	Aldia D.O.O	Indirect evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	11-50	26 contacts →
	Indirect evidence “Aldia ltd.” Source: RevenueBase Database · checked Sep 13, 2026
17	Maop Computer Engineering D.O.O	Partial evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	11-50	23 contacts →
	Partial evidence “MAOP is one of major software developers in the region with the team of over 30 experts, over 30 years of expertise and a strong network of clients and business partners.” Source: RevenueBase Database · checked Sep 13, 2026
18	Wagalabs	Partial evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	11-50	23 contacts →
	Partial evidence “WagaLabs is a trusted Advisory & Technology partner for your digital ventures across verticals, company sizes, and geographies with its own Software Accelerators to fast-track…” Source: RevenueBase Database · checked Sep 13, 2026
19	Lucis D.O.O	Indirect evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	11-50	23 contacts →
	Indirect evidence “Welcome to Lucis!” Source: RevenueBase Database · checked Sep 13, 2026
20	medius.si	Strong evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	11-50	23 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 13, 2026
21	RRC Računalniške Storitve D.O.O	Indirect evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	11-50	22 contacts →
	Indirect evidence “Development of information systems tailored to the user (MS, Oracle and SAP technologies) Maintenance and upgrading of information systems Consulting” Source: RevenueBase Database · checked Sep 13, 2026
22	INDEN	Indirect evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	11-50	21 contacts →
	Indirect evidence “Inden, d.o.o.” Source: RevenueBase Database · checked Sep 13, 2026
23	Telprom	Indirect evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	11-50	19 contacts →
	Indirect evidence “Telprom is an ICT company, that supports its clients on their path to efficient and secure digital offices.” Source: RevenueBase Database · checked Sep 13, 2026
24	CNJ Digital	Partial evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	11-50	18 contacts →
	Partial evidence “At our digital agency, we place your needs at the forefront of our partnership, ensuring that our expertise in Digital Engineering and Enterprise Digitalization empowers you to…” Source: RevenueBase Database · checked Sep 13, 2026
25	Integralis, Sistemske Rešitve D.O.O	Indirect evidence	Ljubljana, SloveniaHQ checked Sep 13, 2026	11-50	13 contacts →
	Indirect evidence “Odlikuje nas 30 letna tradicija in zvestoba naših strank.” Source: RevenueBase Database · checked Sep 13, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: software engineering firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names software engineering firms.
Partial evidence: Its own public description names part of software engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name software engineering firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 76 software engineering firms based in Ljubljana, Slovenia

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Software engineering firms based in Ljubljana, Slovenia at a glance

As of Sep 13, 2026

44.0%Verified-email coverage

1.6%Mobile-number coverage

21.8Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Ljubljana

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Freshness & accuracy

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

Email last verified

Median 15.0d

5840–30

14031–60

361–90

090–180

2180+

Company record updated

Median 78.0d

00–30

56631–60

84561–90

19190–180

54180+

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 software engineering firms, 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 “software engineering firms”. 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 software engineering firms), 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 software engineering firms, 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, 729 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 13, 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.

Software engineering firms by metro in Slovenia

Software engineering firms in Ljubljana76

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 software engineering firms, 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 software engineering firms are there based in Ljubljana, Slovenia?

RevenueBase identified 76 software engineering firms 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?

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

Which city has the most software engineering firms?

Ljubljana leads with 76 headquartered companies, followed by Maribor (19) and Ljubljana Ljubljana (6).

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 729 verified decision-maker contacts tracked across these 76 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 13, 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.