Company lists · Data refreshed September 2026

Top 25 Custom software development companies based in Zagreb, Croatia

Name: Custom 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 9, 2026 174 companies tracked

RevenueBase identified 174 custom software development companies headquartered in Zagreb, Croatia as of September 2026 and tracks 2,068 professional contacts across them, including 821 with verified work emails and 35 with mobile numbers. Zagreb is the largest hub.

This list covers custom 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 9, 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 9, 2026 86% judged on-target in blind review

174Companies

2,068Contacts tracked

821Verified emails

35Mobile numbers

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The 25 largest custom software development companies based in Zagreb, Croatia

Ranked by team size

Top 25 of 174 custom software development companies based in Zagreb, Croatia, ranked by team size, largest first. Data refreshed Sep 9, 2026. RevenueBase Smart Search rates how each company's information relates to custom 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	Q Agency	Strong evidence	Zagreb, CroatiaHQ checked Sep 9, 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 9, 2026
2	BTB	Indirect evidence	Zagreb, CroatiaHQ checked Sep 9, 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 9, 2026
3	Decode	Strong evidence	Zagreb, CroatiaHQ checked Sep 9, 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 9, 2026
4	Pontis Technology	Strong evidence	Zagreb, CroatiaHQ checked Sep 9, 2026	51-200	96 contacts →
	Strong evidence “Pontis Technology, a Ponteva company, is a software development and AI engineering partner helping businesses scale, innovate and grow.” Source: RevenueBase Database · checked Sep 9, 2026
5	Ingemark	Strong evidence	Zagreb, CroatiaHQ checked Sep 9, 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 9, 2026
6	Rest ART	Indirect evidence	Zagreb, CroatiaHQ checked Sep 9, 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 9, 2026
7	ARS Futura	Partial evidence	Zagreb, CroatiaHQ checked Sep 9, 2026	11-50	38 contacts →
	Partial evidence “An award-winning design and development agency founded in 2013, in Zagreb, Croatia.” Source: RevenueBase Database · checked Sep 9, 2026
8	Intellexi	Partial evidence	Zagreb, CroatiaHQ checked Sep 9, 2026	11-50	36 contacts →
	Partial evidence “Intellexi is a software agency that helps businesses build, scale, and launch digital products through flexible, high-performing engineering teams.” Source: RevenueBase Database · checked Sep 9, 2026
9	Hivetech LTD	Indirect evidence	Zagreb, CroatiaHQ checked Sep 9, 2026	11-50	30 contacts →
	Indirect evidence “HiveTech is an independent, full service digital agency which is founded as a result of few people with various technology stack who share the same vision of technology solutions.” Source: RevenueBase Database · checked Sep 9, 2026
10	Coreline	Indirect evidence	Zagreb, CroatiaHQ checked Sep 9, 2026	11-50	28 contacts →
	Indirect evidence “Our core business is building award-winning and cutting-edge digital solutions such as mobile apps, smart systems for security agencies, interactive web apps, digital insurance…” Source: RevenueBase Database · checked Sep 9, 2026
11	Enterwell	Strong evidence	Zagreb, CroatiaHQ checked Sep 9, 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 9, 2026
12	Informel	Strong evidence	Zagreb, CroatiaHQ checked Sep 9, 2026	1-10	25 contacts →
	Strong evidence “Informel is a company for custom software development and graphic design.” Source: RevenueBase Database · checked Sep 9, 2026
13	NOTUS	Indirect evidence	Zagreb, CroatiaHQ checked Sep 9, 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 9, 2026
14	Undabot	Partial evidence	Zagreb, CroatiaHQ checked Sep 9, 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 9, 2026
15	Unifiedpost Solutions D.O.O	Strong evidence	Zagreb, CroatiaHQ checked Sep 9, 2026	11-50	22 contacts →
	Strong evidence “WE ANALYZE, CREATE AND IMPLEMENT Software development and consulting are our playgrounds.” Source: RevenueBase Database · checked Sep 9, 2026
16	Triple Innovations	Indirect evidence	Zagreb, CroatiaHQ checked Sep 9, 2026	11-50	19 contacts →
	Indirect evidence “Triple Innovations excels in delivering user-driven, configurable solutions, tailored to specific business cases across multiple industries.” Source: RevenueBase Database · checked Sep 9, 2026
17	INIT	Strong evidence	Zagreb, CroatiaHQ checked Sep 9, 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 9, 2026
18	Calyx Software Development Company	Partial evidence	Zagreb, CroatiaHQ checked Sep 9, 2026	11-50	18 contacts →
	Partial evidence “Calyx is a full service web and mobile design and development company from Zagreb, Croatia.” Source: RevenueBase Database · checked Sep 9, 2026
19	QED LTD	Indirect evidence	Zagreb, CroatiaHQ checked Sep 9, 2026	11-50	17 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 9, 2026
20	WEB Marketing	Partial evidence	Zagreb, CroatiaHQ checked Sep 9, 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 9, 2026
21	Thespian	Partial evidence	Zagreb, CroatiaHQ checked Sep 9, 2026	11-50	17 contacts →
	Partial evidence “Leverage future-proof software, so you don’t just grow but lead.” Source: RevenueBase Database · checked Sep 9, 2026
22	Inducta D.O.O	Strong evidence	Zagreb, CroatiaHQ checked Sep 9, 2026	11-50	15 contacts →
	Strong 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 9, 2026
23	3mi LAB	Indirect evidence	Zagreb, CroatiaHQ checked Sep 9, 2026	11-50	15 contacts →
	Indirect evidence “The core business of 3MI lab d.o.o.” Source: RevenueBase Database · checked Sep 9, 2026
24	Ide3 IT	Partial evidence	Zagreb, CroatiaHQ checked Sep 9, 2026	11-50	14 contacts →
	Partial evidence “We help organize & transform business with IT services and custom business applications to create a stable digital working environment.” Source: RevenueBase Database · checked Sep 9, 2026
25	DREAM	Strong evidence	Zagreb, CroatiaHQ checked Sep 9, 2026	11-50	13 contacts →
	Strong evidence “Creating badass web & mobile products Dream is founded in December 2012 with the goal to offer service of development of software solutions to customers, but also to develop our…” Source: RevenueBase Database · checked Sep 9, 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 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 software development companies.
Partial evidence: Its own public description names part of custom 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 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 25 of 174 custom software development companies based in Zagreb, Croatia

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

As of Sep 9, 2026

39.7%Verified-email coverage

1.7%Mobile-number coverage

11.9Average contacts per company

1-10Median size (employees)

67.2%Largest-city concentration · Zagreb

Sep 9, 2026Page data refreshed

Companies by employee count

1-10

107

11-50

51-200

201-500

Freshness & accuracy

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

Email last verified

Median 12.0d

7570–30

5431–60

361–90

090–180

7180+

Company record updated

Median 69.5d

00–30

84431–60

93161–90

22690–180

67180+

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 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 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 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 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, 821 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 9, 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.

Custom software development companies by metro in Croatia

Custom software development companies in Zagreb117

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 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 software development companies are there based in Zagreb, Croatia?

RevenueBase identified 174 custom 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?

Q Agency, headquartered in Zagreb, tops this list with the largest team on record.

Which city has the most custom software development companies?

Zagreb leads with 117 headquartered companies, followed by Osijek (19) and Split (12).

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 821 verified decision-maker contacts tracked across these 174 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 9, 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.