Company lists · Data refreshed September 2026

Top 18 Structural engineering companies based in Slovenia

RevenueBase identified 46 structural engineering companies headquartered in Slovenia as of September 2026 and tracks 436 professional contacts across them, including 245 with verified work emails and 5 with mobile numbers. Ljubljana is the largest hub.

This list covers structural engineering companies headquartered in Slovenia, 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 6, 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 6, 2026 86% judged on-target in blind review
46Companies
436Contacts tracked
245Verified emails
5Mobile numbers
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The 18 largest structural engineering companies based in Slovenia

Ranked by team size
Top 18 of 46 structural engineering companies based in Slovenia, ranked by team size, largest first. Data refreshed Sep 6, 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 evidenceLjubljana, SloveniaHQ checked Sep 6, 202651-20090 contacts →

“Elea iC is one of the largest interdisciplinary providers of intellectual services in Slovenia.”

Source: company website · checked Sep 6, 2026
2Partial evidenceLjubljana, SloveniaHQ checked Sep 6, 202651-20058 contacts →

“In IBE we see our mission as providing CONSULTING, DESIGN and ENGINEERING services in the areas of ENERGY, INDUSTRY, INFRASTRUCTURE, PUBLIC and COMMERCIAL SECTOR and ENVIRONMENTAL…”

Source: company website · checked Sep 6, 2026
3Indirect evidenceLjubljana, SloveniaHQ checked Sep 6, 2026201-50057 contacts →

“DRI upravljanje investicij, d.”

Source: company website · checked Sep 6, 2026
4Indirect evidenceMaribor, SloveniaHQ checked Sep 6, 202651-20032 contacts →
Source: company website · checked Sep 6, 2026
5Indirect evidenceLjubljana, SloveniaHQ checked Sep 6, 202611-5029 contacts →

“SINCE 1953 PNZ is one of the leading project design companies in Slovenia.”

Source: company website · checked Sep 6, 2026
6Indirect evidenceLjubljana, SloveniaHQ checked Sep 6, 202611-5015 contacts →

“Smo mlado in hitro rastoče podjetje, ki s svojim znanjem in profesionalnim odnosom opravljamo kakovostne storitve.”

Source: company website · checked Sep 6, 2026
7Indirect evidenceLjubljana, SloveniaHQ checked Sep 6, 202611-508 contacts →

“In taking a fully integrated and holistic approach to investigating and evaluating geotechnical, geological and environmental factors influencing ground related risks we are able…”

Source: company website · checked Sep 6, 2026
8Indirect evidenceŠempeter Pri Gorici, SloveniaHQ checked Sep 6, 202611-507 contacts →

“Družba Freyssinet Adria SI, d.o.o.”

Source: company website · checked Sep 6, 2026
9Indirect evidenceAjdovščina, SloveniaHQ checked Sep 6, 20261-106 contacts →

“We are a company specializing in the planning of complex infrastructure and other projects requiring an intensive multidisciplinary approach.”

Source: company website · checked Sep 6, 2026
10Partial evidenceMaribor, SloveniaHQ checked Sep 6, 202611-505 contacts →

“Civil engineering company based in Maribor, Slovenia.”

Source: company website · checked Sep 6, 2026
11Indirect evidencePoljčane, SloveniaHQ checked Sep 6, 20261-104 contacts →

“infrastructure project design”

Source: company website · checked Sep 6, 2026
12Indirect evidenceMaribor, SloveniaHQ checked Sep 6, 20261-104 contacts →

“Podjetje se ukvarja z izdelavo projektne dokumentacije, prometnih in okoljskih študij, svetovalnega inženiringa in strokovnega nadzora na področju inženirskih objektov.”

Source: company website · checked Sep 6, 2026
13Indirect evidenceLjubljana, SloveniaHQ checked Sep 6, 20261-104 contacts →

“SUPERVISION Transport infrastructure (roads, railways, ports, airports) Communal infrastructure Water and water management infrastructure High-rise buildings (public buildings and…”

Source: company website · checked Sep 6, 2026
14Strong evidenceLjubljana, SloveniaHQ checked Sep 6, 20261-103 contacts →

“The structural engineering and consulting company Spektral was established with the aim of introducing advanced solutions for structural design and seismic engineering into the…”

Source: company website · checked Sep 6, 2026
15Partial evidenceŠempeter Pri Gorici, SloveniaHQ checked Sep 6, 20261-103 contacts →

“We are a leading construction company specializing in an integrated approach to the design of building structures, building control, geological geomechanical surveys, high-rise…”

Source: company website · checked Sep 6, 2026
16Indirect evidenceKranj, SloveniaHQ checked Sep 6, 20261-103 contacts →

“Studio 20-20 is a design company of architects and engineers that offers consulting, project management and BIM related services.”

Source: company website · checked Sep 6, 2026
17Partial evidenceMaribor, SloveniaHQ checked Sep 6, 20261-101 contacts →

Engineering, Design, Consulting and Supervision”

Source: company website · checked Sep 6, 2026
18Partial evidenceKranj, SloveniaHQ checked Sep 6, 20261-101 contacts →

“Our company provides comprehensive services in architecture and engineering, planning and interior design for new facilities, both residential and commercial, as well as…”

Source: company website · checked Sep 6, 2026

Showing 18 of 46 structural engineering companies based in Slovenia

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Structural engineering companies based in Slovenia at a glance

As of Sep 6, 2026
56.2%Verified-email coverage
1.1%Mobile-number coverage
9.5Average contacts per company
1-10Median size (employees)
37.0%Largest-city concentration · Ljubljana
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
29
11-50
12
51-200
4
201-500
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 Slovenia 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 Slovenia 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, 245 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 6, 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 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 Slovenia?

RevenueBase identified 46 structural engineering companies headquartered in Slovenia 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?

Elea IC D.O.O, headquartered in Ljubljana, tops this list with the largest team on record.

Which city has the most structural engineering companies?

Ljubljana leads with 17 headquartered companies, followed by Maribor (7) and Celje (2).

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 245 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 6, 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.