Company lists · Data refreshed September 2026

Top 24 Custom enterprise software development companies based in Zagreb, Croatia

Name: Custom enterprise software development companies based in Zagreb, Croatia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 109 companies tracked

RevenueBase identified 109 custom enterprise software development companies headquartered in Zagreb, Croatia as of September 2026 and tracks 1,611 professional contacts across them, including 750 with verified work emails. Across Croatia, Zagreb is the largest hub for this category.

This list covers custom enterprise software development companies 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 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

109Companies

1,611Contacts tracked

750Verified emails

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The 24 largest custom enterprise software development companies based in Zagreb, Croatia

Ranked by team size

Top 24 of 109 custom enterprise software development companies based in Zagreb, Croatia, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to custom enterprise software development companies: 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 29, 2026	501-1,000	270 contacts →
	Indirect evidence “More than 30 years with you.” Source: RevenueBase Database · checked Sep 29, 2026
2	Q Agency	Strong evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	201-500	263 contacts →
	Strong evidence “Q is a tech consulting and software engineering company that delivers custom software projects, enterprise AI solutions, and builds long-lasting delivery teams.” Source: RevenueBase Database · checked Sep 29, 2026
3	Decode	Strong evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	51-200	97 contacts →
	Strong evidence “DECODE is an EU-based, full-service software development partner for growing tech companies and established mid-market businesses, with offices in Zagreb and Düsseldorf.” Source: RevenueBase Database · checked Sep 29, 2026
4	Omega Software	Partial evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	51-200	82 contacts →
	Partial evidence “Although there are thousands of independent software vendors in the world, Omega software is unlike most of them.” Source: RevenueBase Database · checked Sep 29, 2026
5	Ingemark	Strong evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	51-200	76 contacts →
	Strong evidence “We’re an innovative software company with over 30 years of experience, driven by a mission to support businesses through custom solutions that help hit targets, cut operation…” Source: RevenueBase Database · checked Sep 29, 2026
6	Rest ART	Indirect evidence	Zagreb, CroatiaHQ checked Sep 29, 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 29, 2026
7	Enterwell	Strong evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	11-50	26 contacts →
	Strong evidence “Every company that wants to optimize their operations, engage with customers and increase revenue, uses software.” Source: RevenueBase Database · checked Sep 29, 2026
8	Tomsoft D.O.O	Indirect evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	11-50	25 contacts →
	Indirect evidence “Od osnutka, davne 1994.” Source: RevenueBase Database · checked Sep 29, 2026
9	NOTUS	Indirect evidence	Zagreb, CroatiaHQ checked Sep 29, 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 29, 2026
10	Undabot	Partial evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	51-200	22 contacts →
	Partial evidence “We are a technology company specialising in creating custom, end-to-end mobile & web solutions which set our clients ahead of the curve.” Source: RevenueBase Database · checked Sep 29, 2026
11	Unifiedpost Solutions D.O.O	Strong evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	11-50	22 contacts →
	Strong evidence “WE ANALYZE, CREATE AND IMPLEMENT Software development and consulting are our playgrounds.” Source: RevenueBase Database · checked Sep 29, 2026
12	INIT	Strong evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	11-50	18 contacts →
	Strong evidence “At INIT Agency, we are your trusted software development partner, dedicated to crafting innovative solutions that seamlessly blend technology and expertise for businesses of all…” Source: RevenueBase Database · checked Sep 29, 2026
13	WEB Marketing	Partial evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	11-50	17 contacts →
	Partial evidence “Some people call us “the pioneers of web development in Croatia.” Our story began in the late 1990s when the Internet came to our part of the world.” Source: RevenueBase Database · checked Sep 29, 2026
14	Zagreb Data D.O.O	Partial evidence	Zagreb, CroatiaHQ checked Sep 29, 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 29, 2026
15	Stack-Wizard	Strong evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	11-50	12 contacts →
	Strong evidence “We build highly scalable custom software solutions to assist in business problem-solving and achieving business goals.” Source: RevenueBase Database · checked Sep 29, 2026
16	Centar MCS	Indirect evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	11-50	12 contacts →
	Indirect evidence “Centar MCS je poduzeće s dugogodišnjom tradicijom u programerskom poslovanju.” Source: RevenueBase Database · checked Sep 29, 2026
17	Zeraxo	Strong evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	11-50	12 contacts →
	Strong evidence “Zeraxo is an international software development agency based in Zagreb, Croatia.” Source: RevenueBase Database · checked Sep 29, 2026
18	Aliquantum Idea	Indirect evidence	Zagreb, CroatiaHQ checked Sep 29, 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 29, 2026
19	Shipshape Solutions	Partial evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	1-10	11 contacts →
	Partial evidence “Shipshape Solutions is an IT company specialized in eCommerce development.” Source: RevenueBase Database · checked Sep 29, 2026
20	Codebooq	Strong evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	11-50	10 contacts →
	Strong evidence “Codebooq is an EU-based software development company focused on creating custom software solutions using.NET, Angular, React, Xamarin, and utilizing the full range of services of…” Source: RevenueBase Database · checked Sep 29, 2026
21	4it Solutions	Strong evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	1-10	10 contacts →
	Strong 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 29, 2026
22	Axion Solutions	Strong evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	11-50	9 contacts →
	Strong evidence “We offer our clients a full-service approach in all phases of software development and IT operations.” Source: RevenueBase Database · checked Sep 29, 2026
23	Upheave Technologies	Indirect evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	1-10	9 contacts →
	Indirect evidence “We create innovative solutions that drive rapid increase of value for our clients.” Source: RevenueBase Database · checked Sep 29, 2026
24	Viagemit	Indirect evidence	Zagreb, CroatiaHQ checked Sep 29, 2026	11-50	9 contacts →
	Indirect evidence “We are tech and product experts in delivering AI and business-powered solutions.” Source: RevenueBase Database · checked Sep 29, 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: custom enterprise software development companies. 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 custom enterprise software development companies.
Partial evidence: Its own public description names part of custom enterprise software development companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom enterprise software development companies. 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 24 of 109 custom enterprise software development companies based in Zagreb, Croatia

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Custom enterprise software development companies based in Zagreb, Croatia at a glance

As of Sep 29, 2026

46.6%Verified-email coverage

14.8Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole Croatia list rather than for Zagreb, so it is reported there. Company counts and contact totals on this page are exact for Zagreb, over 109 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 custom enterprise software development companies, 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 “custom enterprise software development companies”. 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 custom enterprise software development companies), 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 custom enterprise software development companies, 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, 750 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 custom enterprise software development companies, 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 custom enterprise software development companies are there based in Zagreb, Croatia?

RevenueBase identified 109 custom enterprise software development companies 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 in Croatia has the most custom enterprise software development companies?

Zagreb leads Croatia with 109 headquartered companies, followed by Osijek (14) and Split (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 750 verified decision-maker contacts tracked across these 109 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.