Company lists · Data refreshed September 2026

Top 15 Automotive supplier companies based in Slovenia

RevenueBase identified 25 automotive supplier companies headquartered in Slovenia as of September 2026 and tracks 1,120 professional contacts across them, including 523 with verified work emails. Ljubljana is the largest hub.

This list covers automotive supplier 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 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
25Companies
1,120Contacts tracked
523Verified emails
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The 15 largest automotive supplier companies based in Slovenia

Ranked by team size
Top 15 of 25 automotive supplier companies 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 automotive supplier 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 evidenceSpodnja Idrija, SloveniaHQ checked Sep 16, 20261,001-5,000374 contacts →

Indirect evidence

“Hidria, an international global Slovenian company, is co-creating and enabling the green, emission free mobility of the future by providing the related global breakthrough…”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceKoper, SloveniaHQ checked Sep 16, 20261,001-5,000254 contacts →

Indirect evidence

“Cimos consists of two divisions – Air Compression and E-Transportation and currently produces in 8 plants certified with IATF 16949 located in Slovenia, Croatia, Bosnia and…”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceVrhnika, SloveniaHQ checked Sep 16, 2026501-1,000102 contacts →

Indirect evidence

“Siliko is a family owned business with 630 employees in two countries- HQ with Development and production in Vrhnika, Slovenia - Main production site in Sevnica, Slovenia -…”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceIdrija, SloveniaHQ checked Sep 16, 20265,001-10,00052 contacts →

Indirect evidence

“We are one of the leading global players in mobility Long tradition and experience in the field of development and production of mobility components and systems place us among the…”

Source: RevenueBase Database · checked Sep 16, 2026
5Strong evidenceKoper, SloveniaHQ checked Sep 16, 20261,001-5,00036 contacts →

Strong evidence

“AK Automotive is part of Küçükoğlu Holding, a leading automotive supplier with decades of manufacturing excellence.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceLjubno Ob Savinji, SloveniaHQ checked Sep 16, 2026201-50029 contacts →

Indirect evidence

“KLS je pomemben globalni dobavitelj avtomobilske industrije z več kot 15-odstotnim svetovnim tržnim deležem.”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceŠentrupert, SloveniaHQ checked Sep 16, 202651-20025 contacts →

Indirect evidence

“Since we have been a trusted partner to car body shops worldwide, providing high-quality, innovative products tailored to our customers’ needs.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceMurska Sobota, SloveniaHQ checked Sep 16, 2026201-50022 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceLjubečna, SloveniaHQ checked Sep 16, 2026201-50017 contacts →

Indirect evidence

“Šumer d.o.o is a multigenerational family company with long tradition of enterpreneurship and trade.”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceVišnja Gora, SloveniaHQ checked Sep 16, 2026201-50015 contacts →

Partial evidence

“ELVEZ is a European manufacturing company producing plastic injection components, decorative metallised parts and cable harness assemblies for OEM and Tier-1 suppliers across…”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceLogatec, SloveniaHQ checked Sep 16, 202611-508 contacts →

Indirect evidence

“Manufacturer and distributor.”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceLjubljana, SloveniaHQ checked Sep 16, 202651-2006 contacts →

Partial evidence

“CIAK Auto, with over 25 years of successful operation, is among the largest distributors of automotive parts and service equipment in the region.”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceLjubljana, SloveniaHQ checked Sep 16, 20261-104 contacts →

Partial evidence

Automotive

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

Indirect evidence

“REMA TIP TOP – first class products and top service worldwide For decades the name REMA TIP TOP stands for highest quality.”

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

Partial evidence

“Tier 2 Automotive interior laminator.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 15 of 25 automotive supplier companies based in Slovenia

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Automotive supplier companies based in Slovenia at a glance

As of Sep 16, 2026
46.7%Verified-email coverage
44.8Average contacts per company
51-200Median size (employees)
16.0%Largest-city concentration · Ljubljana
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
7
11-50
3
51-200
5
201-500
4
501-1,000
1
1,001-5,000
4
5,001-10,000
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 25 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 automotive supplier 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 “automotive supplier 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 automotive supplier 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 automotive supplier 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, 523 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 automotive supplier 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 automotive supplier companies are there based in Slovenia?

RevenueBase identified 25 automotive supplier 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?

Hidria, headquartered in Spodnja Idrija, tops this list with the largest team on record.

Which city has the most automotive supplier companies?

Ljubljana leads with 4 headquartered companies, followed by Ajdovscina (2) and Koper (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 523 verified decision-maker contacts tracked across these 25 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.