Company lists · Data refreshed September 2026

Top 25 Systems software contractors based in Zagreb, Croatia

Name: Systems software contractors based in Zagreb, Croatia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 58 companies tracked

RevenueBase identified 58 systems software contractors headquartered in Zagreb, Croatia as of September 2026 and tracks 1,186 professional contacts across them, including 498 with verified work emails and 17 with mobile numbers. Zagreb is the largest hub.

This list covers systems software contractors headquartered in Zagreb, Croatia, 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

58Companies

1,186Contacts tracked

498Verified emails

17Mobile numbers

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The 25 largest systems software contractors based in Zagreb, Croatia

Ranked by team size

Top 25 of 58 systems software contractors based in Zagreb, Croatia, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to systems software contractors: 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	In2 Group	Indirect evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	501-1,000	270 contacts →
	Indirect evidence “More than 30 years with you.” Source: RevenueBase Database · checked Sep 13, 2026
2	Mstart Plus D.O.O	Partial evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	201-500	264 contacts →
	Partial evidence “mStart is a B2B IT company focused on development, implementation, integration and support of business information systems and solutions.” Source: RevenueBase Database · checked Sep 13, 2026
3	BTB	Indirect evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	n/a	158 contacts →
	Indirect evidence “Beta Tau Beta or BTB focuses on delivering leading IT services to companies that have merged information technology into their business processes.” Source: RevenueBase Database · checked Sep 13, 2026
4	Integra Group	Indirect evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	11-50	87 contacts →
	Indirect evidence “Integra Group was founded in 1990 as a service oriented company.” Source: RevenueBase Database · checked Sep 13, 2026
5	Rest ART	Indirect evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	11-50	72 contacts →
	Indirect evidence “Combining innovation with expertise, Rest Art offers end-to-end business IT solutions that include analysis, design and implementation, delivering measurable value to businesses…” Source: RevenueBase Database · checked Sep 13, 2026
6	NOTUS	Indirect evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	11-50	24 contacts →
	Indirect evidence “Tvrtka Notus je IT tvrtka koja razvija i implementira cjelokupna poslovna rješenja kojima transformiramo poslovanje svojih klijenata.” Source: RevenueBase Database · checked Sep 13, 2026
7	Unifiedpost Solutions D.O.O	Partial evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	11-50	22 contacts →
	Partial evidence “WE ANALYZE, CREATE AND IMPLEMENT Software development and consulting are our playgrounds.” Source: RevenueBase Database · checked Sep 13, 2026
8	Inducta D.O.O	Partial evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	11-50	15 contacts →
	Partial evidence “Inducta is the software factory that is, with related services, providing a Solution Excellence to the Customers from various industries all over the World.” Source: RevenueBase Database · checked Sep 13, 2026
9	3mi LAB	Indirect evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	11-50	15 contacts →
	Indirect evidence “The core business of 3MI lab d.o.o.” Source: RevenueBase Database · checked Sep 13, 2026
10	Zagreb Data D.O.O	Partial evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	11-50	13 contacts →
	Partial evidence “The main activity of Zagreb Data is designing and developing software solutions to the client's request as a result of their special needs and requirements.” Source: RevenueBase Database · checked Sep 13, 2026
11	Centar MCS	Indirect evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	11-50	12 contacts →
	Indirect evidence “Centar MCS je poduzeće s dugogodišnjom tradicijom u programerskom poslovanju.” Source: RevenueBase Database · checked Sep 13, 2026
12	End2end	Strong evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	1-10	11 contacts →
	Strong evidence “END2END is a company that specializes in information system design and software development.” Source: RevenueBase Database · checked Sep 13, 2026
13	Aliquantum Idea	Indirect evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	11-50	11 contacts →
	Indirect evidence “Aliquantum Idea is an information technology company that specializes in implementing and maintenance of business IT solutions, costumer support, creating specific solutions to…” Source: RevenueBase Database · checked Sep 13, 2026
14	Infranet	Indirect evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	11-50	11 contacts →
	Indirect evidence “Integrated ICT solutions for clients, development tools for the ICT industry, and the development of products constitute the main pillars of Infranet’s activities.” Source: RevenueBase Database · checked Sep 13, 2026
15	Shipshape Solutions	Indirect evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	1-10	11 contacts →
	Indirect evidence “Shipshape Solutions is an IT company specialized in eCommerce development.” Source: RevenueBase Database · checked Sep 13, 2026
16	4it Solutions	Partial evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	1-10	10 contacts →
	Partial evidence “We are covering complete software development lifecycle and providing full pallet of IT services including business, functional and IT architecture design, software development…” Source: RevenueBase Database · checked Sep 13, 2026
17	H&d Info	Indirect evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	1-10	10 contacts →
	Indirect evidence “H&D INFO posluje od 2006.” Source: RevenueBase Database · checked Sep 13, 2026
18	Inter Solutio D.O.O	Partial evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	1-10	9 contacts →
	Partial evidence “Inter Solutio is a propulsive company with the primary destination of creating optimal information systems and solutions that improve business processes of our customers and allow…” Source: RevenueBase Database · checked Sep 13, 2026
19	Visoka Razina D.O.O	Indirect evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	1-10	8 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 13, 2026
20	Fortis Labor	Indirect evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	1-10	8 contacts →
	Indirect evidence “Fortis labor je tvrtka u privatnom vlasništvu koja se bavi izradom projekata za informacijske sustave prilagođene potrebama korisnika.” Source: RevenueBase Database · checked Sep 13, 2026
21	Info-Impero D.O.O	Partial evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	11-50	6 contacts →
	Partial evidence “Even though it's young, our company is has a team of experienced professionals, mostly software engineers, certified to work with the newest technologies.” Source: RevenueBase Database · checked Sep 13, 2026
22	Combis D.O.O	Indirect evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	201-500	6 contacts →
	Indirect evidence “Combis is one of the leading ICT company in the Adriatic region in the segment of services, established in 1990, and a member of HT Group since 2010.” Source: RevenueBase Database · checked Sep 13, 2026
23	Avalon Soft	Indirect evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	51-200	6 contacts →
	Indirect evidence “Welcome to Avalon Soft - a powerhouse of IT professionals, dedicated to developing tailor-made solutions that align perfectly with your business goals.” Source: RevenueBase Database · checked Sep 13, 2026
24	Conscius Information Technologies	Indirect evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	11-50	6 contacts →
	Indirect evidence “What we do?” Source: RevenueBase Database · checked Sep 13, 2026
25	Business Solutions Hrvatska D.O.O	Indirect evidence	Zagreb, CroatiaHQ checked Sep 13, 2026	11-50	4 contacts →
	Indirect evidence “Svi članovi tima doprinose rastu, razvoju i dugoročnom uspjehu naših klijenata.” 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: systems software contractors. 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 systems software contractors.
Partial evidence: Its own public description names part of systems software contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name systems software contractors. 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 58 systems software contractors based in Zagreb, Croatia

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Systems software contractors based in Zagreb, Croatia at a glance

As of Sep 13, 2026

42.0%Verified-email coverage

1.4%Mobile-number coverage

20.4Average contacts per company

1-10Median size (employees)

148.3%Largest-city concentration · Zagreb

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Freshness & accuracy

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

Email last verified

Median 15.0d

3950–30

9731–60

361–90

090–180

3180+

Company record updated

Median 78.0d

00–30

37131–60

62561–90

15390–180

37180+

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 systems software contractors, 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 Zagreb, Croatia whose own description of what they do matches “systems software contractors”. 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 systems software contractors), 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 systems software contractors, and records with no verified work email. Companies headquartered outside Zagreb 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, 498 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.

Systems software contractors by metro in Croatia

Systems software contractors in Zagreb86

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 systems software contractors, 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 systems software contractors are there based in Zagreb, Croatia?

RevenueBase identified 58 systems software contractors headquartered in Zagreb, Croatia 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?

In2 Group, headquartered in Zagreb, tops this list with the largest team on record.

Which city has the most systems software contractors?

Zagreb leads with 86 headquartered companies, followed by Osijek (10) and Varazdin (7).

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 498 verified decision-maker contacts tracked across these 58 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.