Company lists · Data refreshed September 2026

Top 25 Engineering consulting firms based in Slovenia

Name: Engineering consulting firms based in Slovenia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 74 companies tracked

RevenueBase identified 74 company matches for engineering consulting firms associated with Slovenia as of September 2026 and tracks 686 professional contacts across them, including 352 with verified work emails and 10 with mobile numbers. Ljubljana is the largest hub.

This list covers company matches for engineering consulting firms associated with Slovenia, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 2, 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 RevenueBase SmartSearch · Exact Recorded Sep 2, 2026 How this list was built

74Companies

686Contacts tracked

352Verified emails

10Mobile numbers

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The 25 largest engineering consulting firms based in Slovenia

Ranked by team size

Top 25 of 74 company matches for engineering consulting firms based in Slovenia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 2, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Elea IC D.O.O	Exact match	Ljubljana, Slovenia	51-200	89 contacts →
	Exact match “Elea iC is one of the largest interdisciplinary providers of intellectual services in Slovenia.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
2	IBE D.D	Exact match	Ljubljana, Slovenia	51-200	60 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
3	DRI Upravljanje Investicij, D. O. O	Exact match	Ljubljana, Slovenia	201-500	58 contacts →
	Exact match “DRI upravljanje investicij, d.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
4	BEXEL	Exact match	Ljubljana, Slovenia	51-200	33 contacts →
	Exact match “BEXEL Consulting is a modern, high-tech, construction and engineering consultancy company.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
5	PNZ D.O.O	Exact match	Ljubljana, Slovenia	11-50	29 contacts →
	Exact match “SINCE 1953 PNZ is one of the leading project design companies in Slovenia.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
6	HSE Invest D.O.O	Exact match	Maribor, Slovenia	51-200	23 contacts →
	Exact match “Excellent in consulting, engineering and construction.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
7	Štajerski Inženiring D.O.O	Exact match	Maribor, Slovenia	11-50	20 contacts →
	Exact match “Štajerski Inženiring is a civil engineering and project management company committed to delivering high-quality, future-ready solutions for investors across all phases of…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
8	Elsing D.O.O	Exact match	Ljubljana Crnuce, Slovenia	11-50	18 contacts →
	Exact match “Elsing is an engineering company providing consulting, contracting and maintenance services since 1993.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
9	Rudis D.O.O. Trbovlje	Exact match	Trbovlje, Slovenia	51-200	17 contacts →
	Exact match “Rudis is the leading engineering company in Slovenia, specialized in contracting engineering in the field of energetics, ecology, industry and special technologies.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
10	Diming, Inženiring In Projektiranje D.O.O	Exact match	Ljubljana, Slovenia	11-50	15 contacts →
	Exact match “Smo mlado in hitro rastoče podjetje, ki s svojim znanjem in profesionalnim odnosom opravljamo kakovostne storitve.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
11	CBE D.O.O	Exact match	Ljubljana, Slovenia	51-200	15 contacts →
	Exact match “Ustvarjanje učinkovitih inženirskih rešitev je naša strast.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
12	OK Zt-Gmbh	Exact match	Ljubljana Laibach, Slovenia	11-50	12 contacts →
	Exact match “Von der ersten Idee bis zur erfolgreichen Realisierung – wir schaffen Raum für Zukunft.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
13	Savaprojekt D.D	Exact match	Krsko Krsko, Slovenia	51-200	12 contacts →
	Exact match “Company for Development, Planning, Consulting and Engineering Savaprojekt is one of the few companies in Slovenia with its own professionals to provide investors with…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
14	Sipro Inženiring D.O.O	Exact match	Krsko, Slovenia	11-50	11 contacts →
	Exact match “SIPRO Inženiring (SIPRO Engineering) provides design, engineering, consulting, supervision, and site services in the fields of nuclear power generation, as well as other power…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
15	Ipmit D.O.O	Exact match	Ljubljana, Slovenia	11-50	8 contacts →
	Exact match “We are a business and information technology consulting and engineering company that combines unparalleled experience and comprehensive capabilities across multiple business…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
16	Geoinženiring	Exact match	Ljubljana, Slovenia	11-50	8 contacts →
	Exact match “In taking a fully integrated and holistic approach to investigating and evaluating geotechnical, geological and environmental factors influencing ground related risks we are able…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
17	Ac&p Inženirski Biro D.O.O	Exact match	Ajdovscina, Slovenia	1-10	6 contacts →
	Exact match “We are a company specializing in the planning of complex infrastructure and other projects requiring an intensive multidisciplinary approach.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
18	Gradis, BP Maribor D.O.O	Exact match	Maribor, Slovenia	11-50	5 contacts →
	Exact match “Civil engineering company based in Maribor, Slovenia.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
19	Simbased	Exact match	Slovenia	1-10	5 contacts →
	Exact match “SIMBASED is an engineering consulting company specializing in product design and advanced computer simulations.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
20	IEM Inženiring In Projektiranje D.O.O	Exact match	Ljubljana, Slovenia	1-10	5 contacts →
	Exact match “IEM Engineering and planning Ltd, is one of the oldest engineering, consulting and planning companies in Slovenia.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
21	Megalit D.O.O	Exact match	Poljcane, Slovenia	1-10	4 contacts →
	Exact match “infrastructure project design” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
22	Proinfra D.O.O	Exact match	Maribor, Slovenia	1-10	4 contacts →
	Exact match “Podjetje se ukvarja z izdelavo projektne dokumentacije, prometnih in okoljskih študij, svetovalnega inženiringa in strokovnega nadzora na področju inženirskih objektov.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
23	Sloman D.O.O	Exact match	Slovenia	1-10	4 contacts →
	Exact match “SUPERVISION Transport infrastructure (roads, railways, ports, airports) Communal infrastructure Water and water management infrastructure High-rise buildings (public buildings and…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
24	Spektral Engineering	Exact match	Ljubljana, Slovenia	1-10	3 contacts →
	Exact match “The structural engineering and consulting company Spektral was established with the aim of introducing advanced solutions for structural design and seismic engineering into the…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
25	Studio 20-20	Exact match	Kranj, Slovenia	1-10	3 contacts →
	Exact match “Studio 20-20 is a design company of architects and engineers that offers consulting, project management and BIM related services.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “engineering consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 74 engineering consulting firms based in Slovenia

See the full list, filter by size, metro and specialty, and access 352 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Engineering consulting firms based in Slovenia at a glance

As of Sep 2, 2026

51.3%Verified-email coverage

1.5%Mobile-number coverage

9.3Average contacts per company

1-10Median size (employees)

37.8%Largest-city concentration · Ljubljana

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with Slovenia whose business descriptions match “engineering consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 352 professional contacts with verified work emails across the full matched dataset. 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 2, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Engineering consulting firms by metro

Engineering consulting firms in Ljubljana28

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “engineering consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many engineering consulting firms are there based in Slovenia?

RevenueBase identified 74 company matches for engineering consulting firms associated with Slovenia as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Elea IC D.O.O tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most engineering consulting firms?

Ljubljana leads with 28 company records, followed by Maribor (8) and Trbovlje (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 352 professional contacts with verified work emails tracked across these 74 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 2, 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.