Company lists · Data refreshed September 2026

Top 13 Information security consulting firms based in Croatia

RevenueBase identified 38 information security consulting firms headquartered in Croatia as of September 2026 and tracks 280 professional contacts across them, including 150 with verified work emails and 3 with mobile numbers. Zagreb is the largest hub.

This list covers information security consulting firms headquartered in 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review
38Companies
280Contacts tracked
150Verified emails
3Mobile numbers
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The 13 largest information security consulting firms based in Croatia

Ranked by team size
Top 13 of 38 information security consulting firms based in Croatia, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names information security consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Infigo ISIndirect evidence
Zagreb, CroatiaHQ checked Sep 3, 202651-20083

“Every day INFIGO IS' products protect thousands of organizations, hundreds of thousands of their employees and users.”

Source: company website · checked Sep 3, 2026
2
Insig2 LTDPartial evidence
Zagreb, CroatiaHQ checked Sep 3, 202651-20069

“INsig2 has developed its expertise in three main business segments: digital forensics, integrated corporate security, and software development What is digital forensics?”

Source: company website · checked Sep 3, 2026
3
DivertoStrong evidence
Zagreb, CroatiaHQ checked Sep 3, 202651-20046

“Diverto are experienced security professionals, ensuring the highest level of information security in companies, institutions and other organisations.”

Source: company website · checked Sep 3, 2026
4
Ostendo ConsultingStrong evidence
Ugljan, CroatiaHQ checked Sep 3, 20261-108

“OSTENDO CONSULTING is family owned information security and risk management consulting company founded by Biljana and Stanko Cerin in 2011.”

Source: company website · checked Sep 3, 2026
5
Prospectus D.O.OIndirect evidence
Zagreb, CroatiaHQ checked Sep 3, 202611-507

“Company Prospectus Ltd.”

Source: company website · checked Sep 3, 2026
6
Synnefo Systems LTDIndirect evidence
Zagreb, CroatiaHQ checked Sep 3, 202611-504

“Being in IT business for over 13 years, with more than 450 projects and more than solved tickets, we are a company you can trust to deliver quality and results when it matters!”

Source: company website · checked Sep 3, 2026
7
Binary ShadowPartial evidence
CroatiaHQ checked Sep 3, 202611-504

“Binary Shadow is a privately-held international company that provides various information technology related services.”

Source: company website · checked Sep 3, 2026
8
Dot.Bit D.O.OStrong evidence
Zagreb, CroatiaHQ checked Sep 3, 20261-104

“Dot.Bit is privately owned (Ltd.) information security company based in Zagreb, Croatia.”

Source: company website · checked Sep 3, 2026
9
Borea D.O.OIndirect evidence
Zagreb, CroatiaHQ checked Sep 3, 20261-103
Source: company website · checked Sep 3, 2026
10
SecureblockIndirect evidence
Zagreb, CroatiaHQ checked Sep 3, 20261-103

“We specialize in advanced penetration testing, vulnerability assessments, and threat analysis.”

Source: company website · checked Sep 3, 2026
11
Mindmint SolutionsIndirect evidence
CroatiaHQ checked Sep 3, 20261-102

“MindMint Solutions Ltd.”

Source: company website · checked Sep 3, 2026
12
Genesis Block D.O.OPartial evidence
Rijeka, CroatiaHQ checked Sep 3, 20261-101

“IT Consulting Services”

Source: company website · checked Sep 3, 2026
13
PuresecurityIndirect evidence
Zagreb, CroatiaHQ checked Sep 3, 20261-101

“In today’s world of rising regulations and cyber threats, we help you build systems and processes that make your organization safer, more resilient, and future-ready.”

Source: company website · checked Sep 3, 2026

Showing 13 of 38 information security consulting firms based in Croatia

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Information security consulting firms based in Croatia at a glance

As of Sep 3, 2026
1-10Median size (employees)
ZagrebLargest hub · 23 HQs
3Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
29
11-50
6
51-200
3

Verified emails by last verification

0–30
0
31–60
14
61–90
90
90–180
46
180+
0

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 information security consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Croatia whose own description of what they do matches “information security consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among information security consulting firms, and records with no verified work email. Companies headquartered outside Croatia 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 an evidence 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, 150 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 3, 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

How many information security consulting firms are there based in Croatia?

RevenueBase identified 38 information security consulting firms headquartered in 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?

Infigo IS, headquartered in Zagreb, tops this list with the largest team on record.

Which city has the most information security consulting firms?

Zagreb leads with 23 headquartered companies, followed by Osijek (2) and Bjelovar (1).

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 150 verified decision-maker contacts tracked across these 38 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 3, 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 SmartSearch, 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.