Company lists · Data refreshed September 2026

Top 17 Energy infrastructure consultants based in Slovenia

RevenueBase identified 31 energy infrastructure consultants headquartered in Slovenia as of September 2026 and tracks 356 professional contacts across them, including 210 with verified work emails. Ljubljana is the largest hub.

This list covers energy infrastructure consultants 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 16, 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 16, 2026 86% judged on-target in blind review
31Companies
356Contacts tracked
210Verified emails
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The 17 largest energy infrastructure consultants based in Slovenia

Ranked by team size
Top 17 of 31 energy infrastructure consultants based in Slovenia, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy infrastructure consultants: 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
1Strong evidenceLjubljana, SloveniaHQ checked Sep 16, 202651-20058 contacts →

Strong evidence

“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: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceLjubljana, SloveniaHQ checked Sep 16, 2026201-50057 contacts →

Indirect evidence

“DRI upravljanje investicij, d.”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceLjubljana, SloveniaHQ checked Sep 16, 202651-20024 contacts →

Partial evidence

“We are a specialized provider of secondary systems for medium and high voltage energy networks.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceMaribor, SloveniaHQ checked Sep 16, 202651-20023 contacts →

Indirect evidence

“Excellent in consulting, engineering and construction.”

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceLjubljana, SloveniaHQ checked Sep 16, 202611-5020 contacts →

Partial evidence

“The main objective of Kolektor sETup is to plan and enable a seamless integration of advanced and multifaceted technological solutions into smart infrastructure environments.”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceLogatec, SloveniaHQ checked Sep 16, 202611-5019 contacts →

Partial evidence

“At Acinel d.o.o, we are dedicated to providing comprehensive solutions in the energy sector.”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceLjubljana Črnuče, SloveniaHQ checked Sep 16, 202611-5017 contacts →

Indirect evidence

“Elsing is an engineering company providing consulting, contracting and maintenance services since 1993.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceLjubljana, SloveniaHQ checked Sep 16, 202611-5015 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceKrsko, SloveniaHQ checked Sep 16, 202611-5012 contacts →

Indirect evidence

“SIPRO Inženiring (SIPRO Engineering) provides design, engineering, consulting, supervision, and site services in the fields of nuclear power generation, as well as other power…”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceJesenice Na Dolenjskem, SloveniaHQ checked Sep 16, 202611-5011 contacts →

Partial evidence

“We are a company whose main industry field is energetics.”

Source: RevenueBase Database · checked Sep 16, 2026
11Strong evidenceLjubljana, SloveniaHQ checked Sep 16, 202651-2009 contacts →

Strong evidence

“Complete Energy Solutions C&G is a forward-looking engineering, innovative, development and marketing-oriented company with a long tradition in energy infrastructure.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceLjubljana, SloveniaHQ checked Sep 16, 20261-105 contacts →

Indirect evidence

“IEM Engineering and planning Ltd, is one of the oldest engineering, consulting and planning companies in Slovenia.”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceLjubljana, SloveniaHQ checked Sep 16, 202611-504 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceMaribor, SloveniaHQ checked Sep 16, 20261-103 contacts →

Indirect evidence

“INOVEA, Innovative Strategic Solutions is one of the leading companies in the area of sustainability.”

Source: RevenueBase Database · checked Sep 16, 2026
15Partial evidenceLjubljana, SloveniaHQ checked Sep 16, 202611-502 contacts →

Partial evidence

“We belive in quality construction of energy facilities, reconstruction and maintenance of electricity facilities to the satisfaction of our costumers,partners and employees and…”

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceLjubljana, SloveniaHQ checked Sep 16, 20261-101 contacts →

Partial evidence

“Elektro Ljubljana OVE d.o.o, renewable energy engineering, is a subsidiary of Elektro Ljubljana d.d, and a legal successor of the enterprise MHE Elektro Ljubljana d.o.o…”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceLjubljana, SloveniaHQ checked Sep 16, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026

Showing 17 of 31 energy infrastructure consultants based in Slovenia

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Energy infrastructure consultants based in Slovenia at a glance

As of Sep 16, 2026
59.0%Verified-email coverage
11.5Average contacts per company
1-10Median size (employees)
48.4%Largest-city concentration · Ljubljana
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
16
11-50
8
51-200
5
201-500
1
501-1,000
1

Email recency for this list is measured worldwide rather than for Slovenia, so it is reported there. Company counts and contact totals on this page are exact for Slovenia, over 31 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 energy infrastructure consultants, 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 “energy infrastructure consultants”. 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 energy infrastructure consultants), 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 energy infrastructure consultants, 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, 210 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 16, 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 energy infrastructure consultants, 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 energy infrastructure consultants are there based in Slovenia?

RevenueBase identified 31 energy infrastructure consultants 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?

IBE D.D, headquartered in Ljubljana, tops this list with the largest team on record.

Which city has the most energy infrastructure consultants?

Ljubljana leads with 15 headquartered companies, followed by Ljubljana Ljubljana (2) and Maribor (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 210 verified decision-maker contacts tracked across these 31 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 16, 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.