Company lists · Data refreshed September 2026

Top 14 Infrastructure construction companies based in Croatia

RevenueBase identified 47 infrastructure construction companies headquartered in Croatia as of September 2026 and tracks 782 professional contacts across them, including 144 with verified work emails. Zagreb is the largest hub.

This list covers infrastructure construction companies 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 15, 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 15, 2026 86% judged on-target in blind review
47Companies
782Contacts tracked
144Verified emails
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The 14 largest infrastructure construction companies based in Croatia

Ranked by team size
Top 14 of 47 infrastructure construction companies based in Croatia, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure construction 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceZagreb, CroatiaHQ checked Sep 15, 2026501-1,000261 contacts →

Indirect evidence

“Institut IGH d.d.”

Source: RevenueBase Database · checked Sep 15, 2026
2Indirect evidenceBuzin, CroatiaHQ checked Sep 15, 2026201-50095 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 15, 2026
3Partial evidenceZagreb, CroatiaHQ checked Sep 15, 20261,001-5,00094 contacts →

Partial evidence

“Zagreb Montaža Group is one of the leading construction companies in Croatia with approximately 1,400 employees and an annual income of over EUR 120 million.”

Source: RevenueBase Database · checked Sep 15, 2026
4Indirect evidenceZagreb, CroatiaHQ checked Sep 15, 202651-20042 contacts →

Indirect evidence

“INGRA je u više od 70 godina svog djelovanja izvela 800 kapitalnih investicijskih projekata u više od 30 zemalja svijeta – od velikih energetskih i industrijskih postrojenja do…”

Source: RevenueBase Database · checked Sep 15, 2026
5Indirect evidenceGornja Vrba, CroatiaHQ checked Sep 15, 2026201-50032 contacts →

Indirect evidence

“Projektgradnja plus Ltd.”

Source: RevenueBase Database · checked Sep 15, 2026
6Partial evidenceZagreb, CroatiaHQ checked Sep 15, 202651-20030 contacts →

Partial evidence

“IPZ (en.The Engineering Design Institute) is a joint-stock company specializing in design and consulting services, operating independently and without any ties to construction…”

Source: RevenueBase Database · checked Sep 15, 2026
7Partial evidenceSelca, CroatiaHQ checked Sep 15, 202651-20021 contacts →

Partial evidence

“We have established a reputation for providing high-quality and professional services in the field of civil engineering works, building construction works, and structural repairs.”

Source: RevenueBase Database · checked Sep 15, 2026
8Indirect evidenceZagreb, CroatiaHQ checked Sep 15, 2026201-50019 contacts →

Indirect evidence

“Franc Mont je tvrtka koja se bavi svim vrstama građevinskih radova i graditeljstvom, a specijalizirana je u strojarskom segmentu ove djelatnosti, u kojem zauzima poziciju tržišnog…”

Source: RevenueBase Database · checked Sep 15, 2026
9Strong evidenceZagreb, CroatiaHQ checked Sep 15, 202651-20016 contacts →

Strong evidence

“We are civil engineering company founded in 1986 for the construction and energy works on the infrastructure facilities.”

Source: RevenueBase Database · checked Sep 15, 2026
10Indirect evidenceKriževci, CroatiaHQ checked Sep 15, 202611-5012 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 15, 2026
11Indirect evidenceSplit, CroatiaHQ checked Sep 15, 2026201-5007 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 15, 2026
12Indirect evidenceVrbanja, CroatiaHQ checked Sep 15, 202651-2004 contacts →

Indirect evidence

“The company was founded in 1995.”

Source: RevenueBase Database · checked Sep 15, 2026
13Indirect evidencePodsused – Vrapče, CroatiaHQ checked Sep 15, 202611-504 contacts →

Indirect evidence

“Tvrtka SYNTEKS d.o.o.”

Source: RevenueBase Database · checked Sep 15, 2026
14Partial evidenceZaprešić, CroatiaHQ checked Sep 15, 20261-102 contacts →

Partial evidence

“With a wealth of experience and a commitment to employing cutting-edge technologies, we specialize in providing comprehensive services throughout the design and construction…”

Source: RevenueBase Database · checked Sep 15, 2026

Showing 14 of 47 infrastructure construction companies based in Croatia

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Infrastructure construction companies based in Croatia at a glance

As of Sep 15, 2026
18.4%Verified-email coverage
16.6Average contacts per company
11-50Median size (employees)
38.3%Largest-city concentration · Zagreb
Sep 15, 2026Page data refreshed

Companies by employee count

1-10
20
11-50
7
51-200
12
201-500
6
501-1,000
1
1,001-5,000
1

Email recency for this list is measured worldwide rather than for Croatia, so it is reported there. Company counts and contact totals on this page are exact for Croatia, over 47 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 infrastructure construction 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 Croatia whose own description of what they do matches “infrastructure construction 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 infrastructure construction 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 infrastructure construction companies, 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 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, 144 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 15, 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 infrastructure construction 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 infrastructure construction companies are there based in Croatia?

RevenueBase identified 47 infrastructure construction companies 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?

Institut Igh, D.D, headquartered in Zagreb, tops this list with the largest team on record.

Which city has the most infrastructure construction companies?

Zagreb leads with 18 headquartered companies, followed by Osijek (4) and Zadar (3).

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 144 verified decision-maker contacts tracked across these 47 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 15, 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.