Company lists · Data refreshed September 2026

Top 15 Structural engineering companies based in Zagreb, Croatia

RevenueBase identified 46 structural engineering companies headquartered in Zagreb, Croatia as of September 2026 and tracks 640 professional contacts across them, including 150 with verified work emails and 5 with mobile numbers. Zagreb is the largest hub.

This list covers structural engineering 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 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
46Companies
640Contacts tracked
150Verified emails
5Mobile numbers
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The 15 largest structural engineering companies based in Zagreb, Croatia

Ranked by team size
Top 15 of 46 structural engineering companies 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 structural engineering 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 13, 2026501-1,000261 contacts →

Indirect evidence

“Institut IGH d.d.”

Source: RevenueBase Database · checked Sep 13, 2026
2Indirect evidenceZagreb, CroatiaHQ checked Sep 13, 202651-20041 contacts →

Indirect evidence

“INVESTINŽENJERING d.o.o.”

Source: RevenueBase Database · checked Sep 13, 2026
3Partial evidenceZagreb, CroatiaHQ checked Sep 13, 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 13, 2026
4Indirect evidenceZagreb, CroatiaHQ checked Sep 13, 202611-5023 contacts →

Indirect evidence

“Tvrtka je utemeljena 1967.g.”

Source: RevenueBase Database · checked Sep 13, 2026
5Partial evidenceZagreb, CroatiaHQ checked Sep 13, 202651-20023 contacts →

Partial evidence

“INP Oil & Gas Engineering Ltd.(Inženjering za naftu i plin d.o.o.) is a leading engineering, design and consultancy company founded 1952.”

Source: RevenueBase Database · checked Sep 13, 2026
6Indirect evidenceZagreb, CroatiaHQ checked Sep 13, 202611-5019 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 13, 2026
7Partial evidenceZagreb, CroatiaHQ checked Sep 13, 202651-20016 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 13, 2026
8Partial evidenceZagreb, CroatiaHQ checked Sep 13, 20261-1011 contacts →

Partial evidence

Structural design in steelwork, concrete, timber and masonry • Special structures • Building performance • Assessment and renovation • Refurbishment, re-modelling and renovation…”

Source: RevenueBase Database · checked Sep 13, 2026
9Strong evidenceZagreb, CroatiaHQ checked Sep 13, 20261-1010 contacts →

Strong evidence

“We deal with architectural design, small scale planning, structural engineering, civil engineering covering all phases of project, from the early start to the finished product.”

Source: RevenueBase Database · checked Sep 13, 2026
10Partial evidenceZagreb, CroatiaHQ checked Sep 13, 202611-509 contacts →

Partial evidence

“UPI-2M is a design company that provides architectural, structural and consulting services.”

Source: RevenueBase Database · checked Sep 13, 2026
11Indirect evidenceZagreb, CroatiaHQ checked Sep 13, 202611-508 contacts →

Indirect evidence

“The company KARST Ltd.”

Source: RevenueBase Database · checked Sep 13, 2026
12Indirect evidenceZagreb, CroatiaHQ checked Sep 13, 20261-106 contacts →

Indirect evidence

“Official account of Hidroinzenjering d.o.o.”

Source: RevenueBase Database · checked Sep 13, 2026
13Indirect evidenceZagreb, CroatiaHQ checked Sep 13, 202611-505 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 13, 2026
14Indirect evidenceZagreb, CroatiaHQ checked Sep 13, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 13, 2026
15Partial evidenceZagreb, CroatiaHQ checked Sep 13, 20261-101 contacts →

Partial evidence

“Architectural Design and Engineering

Source: RevenueBase Database · checked Sep 13, 2026

Showing 15 of 46 structural engineering companies based in Zagreb, Croatia

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Structural engineering companies based in Zagreb, Croatia at a glance

As of Sep 13, 2026
23.4%Verified-email coverage
0.8%Mobile-number coverage
13.9Average contacts per company
1-10Median size (employees)
100.0%Largest-city concentration · Zagreb
Sep 13, 2026Page data refreshed

Companies by employee count

1-10
27
11-50
12
51-200
6
501-1,000
1

Freshness & accuracy

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

Email last verified

Median 16.0d

Company record updated

Median 78.0d

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 structural engineering 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 “structural engineering 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 structural engineering 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 structural engineering 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, 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 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.

Structural engineering companies by metro in Croatia

  • Structural engineering companies in Zagreb46

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 structural engineering 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 structural engineering companies are there based in Zagreb, Croatia?

RevenueBase identified 46 structural engineering 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?

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

Which city has the most structural engineering companies?

Zagreb leads with 46 headquartered companies, followed by Osijek (11) and Zadar (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 150 verified decision-maker contacts tracked across these 46 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.