Slovenia— SI

Telecom companies in Slovenia — browse 463 records

Browse 463 telecom companies in Slovenia — registry-sourced from official Slovenia business registry, scoped to NACE 61. Each record carries up to up to 500 firmographic attributes — from Matična številka and registered address to revenue, headcount and corporate group structure. The largest by revenue are TELEKOM SLOVENIJE, d.d. ($753M), Telemach Slovenija d.o.o. ($320M) and A1 Slovenija, d. d. ($243M).

463

Telecom companies

NACE codes

Group-linked records

Top companies

Largest telecom companies in Slovenia (2026)

The largest telecom companies in Slovenia by revenue are TELEKOM SLOVENIJE, d.d. ($753M), Telemach Slovenija d.o.o. ($320M) and A1 Slovenija, d. d. ($243M). The directory below ranks them — sort any column, or filter by sub-sector, company size and region.

Last updated June 2026.

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Every Slovenian telecom companies record with all attributes, by API, bulk export or CRM enrichment.

Showing 25 of 463 Slovenian telecom companies· click a column to sort, or a company for its full record

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Wired telecommunications activities	Liubliana	Cigaletova ulica 15	3,127	$753M	1993	5014018	Corporation	3,003
Wired telecommunications activities	Liubliana	Brnciceva ulica 49	710	$320M	1992	5692229	Corporation	131
Wired telecommunications activities	Liubliana	Ameriska ulica 4	638	$243M	1998	1196332	Corporation	2,575
Wired telecommunications activities	Liubliana	Verovskova ulica 64	56	$120M	2004	1954598	Corporation	13
Wired telecommunications activities	Liubliana	Dunajska cesta 9	45	$91M	1990	5372798	Corporation	5
Other telecommunications activities	Liubliana	Cesta v Gorice 34	43	$48M	2007	2273004	Corporation	5
Wired telecommunications activities	Liubliana	Letaliska cesta 29	22	$35M	1996	5932203	Corporation	560
Wired telecommunications activities	Nova Gorica	Kidriceva ulica 19	60	$23M	2020	8683131	Corporation	Not available
Other telecommunications activities	Domžale	Kidriceva ulica 22	30	$18M	2022	9066829	Corporation	3
Wired telecommunications activities	Liubliana	Smartinska cesta 106	5	$14M	2016	7124872	Corporation	3
Other telecommunications activities	Liubliana	Vodovodna cesta 100	5	$14M	2022	9222006	Corporation	3
Wired telecommunications activities	Liubliana	Smartinska cesta 106	9	$13M	2016	7053398	Corporation	3
Other telecommunications activities	Liubliana	Italijanska ulica 8	7	$13M	2022	9222375	Corporation	11
Wired telecommunications activities	Liubliana	Tomacevska cesta 46	72	$12M	2019	8542368	Corporation	Not available
Wired telecommunications activities	Liubliana	Leskoskova cesta 6	56	$10M	2019	8439087	Corporation	7
Other telecommunications activities	Celje	Bukovzlak 101	16	$10M	2008	3359948	Corporation	Not available
Wired telecommunications activities	Liubliana	Tehnoloski park 18	5	$7M	1992	5618100	Non profit organization	3,003
Other telecommunications activities	Celje	Teharje 7	44	$6M	1990	5296145	Corporation	2
Wired telecommunications activities	Trzin	Spruha 19	25	$6M	2003	1807099	Corporation	Not available
Other telecommunications activities	Trzin	Borovec 2	23	$6M	1996	5970814	Corporation	3
Other telecommunications activities	Velenje	Rudarska cesta 6	29	$6M	2002	1707973	Corporation	Not available
Wired telecommunications activities	Celje	Ulica XIV. divizije 8	1	$6M	2021	8996407	Corporation	Not available
Other telecommunications activities	Celje	Ulica XIV. divizije 8	7	$5M	2023	9546383	Corporation	2
Wired telecommunications activities	Liubliana	Cigaletova ulica 10	5	$5M	2016	7167008	Corporation	3,003
Wired telecommunications activities	Selnica ob Dravi	Mariborska cesta 25	3	$3M	2002	1775502	Corporation	2

This is a sample. The full database holds 463 Slovenian telecom companies, each with every attribute in the dictionary below.

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Database overview

Telecom companies in Slovenia — database overview

Distributions across all 463 telecom companies in Slovenia — registry-sourced from official Slovenia business registry and refreshed daily.

Company size (by employee band)

1–9
92%
10–49
5%
50–199
2%
200–999
0%
1,000+
0%

Sub-sector breakdown (NACE)

Wired telecommunications activities78%
Other telecommunications activities22%

Regional distribution

Osrednjeslovenska
52%
Savinjska
10%
Gorenjska
9%
Podravska
8%
Obalno-kraška
5%
Goriška
4%
Other
12%

Revenue (USD)

Less than $100K
35%
$100K – $1M
53%
$1M – $10M
8%
$10M – $100M
3%
$100M+
1%

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These distributions are computed from the full Slovenian telecom companies database, not the sample above.

Data coverage

What data is available on telecom companies in Slovenia

Slovenia business database

Firmographics

Legal name, registered address, NACE sub-sector, legal form, founding year and website. Every record is keyed to its Matična številka — the stable official Slovenia business registry identifier that survives name changes and rebrands, making it the most reliable CRM deduplication key for Slovenia data.

Points of interest

Each company is geocoded to GPS coordinates covering its registered seat and operating locations across Slovenia, with a precision level on every point — useful for territory planning and proximity targeting.

Tax IDs

Records carry the Matična številka and, where applicable, the VAT registration number, with a flag for when the two coincide. These are the cleanest match keys for enriching lists and cross-referencing against the national tax authority and your CRM.

Group structure

InfobelPRO resolves the corporate hierarchy — parent, subsidiaries and the size of the worldwide corporate family — so sales and compliance teams can see who controls an entity before engaging or onboarding it.

Financials

Annual revenue in local currency, EUR and USD, employee headcount and founding year, with multi-year history where filed. Figures are sourced from official Slovenia business registry filings and carry an Actual-or-Modeled reliability flag.

Data dictionary

Every attribute in the Slovenian telecom companies dataset

The full field catalogue behind each record. Contact data (email, phone, executives) is part of the licensed dataset but is never displayed on this page.

Identity

companyName: Registered legal name.
businessName: Trading / commercial name where it differs from the legal name.
tradeName: Additional registered trade name.
nationalID: Matična številka — the official official Slovenia business registry company identifier.
nationalIDIsVat: Flag indicating whether the national ID doubles as the VAT number.

Location

addressStreet: Registered street address.
postCode: Postal code.
city: City / locality.
province: Region / province / county.
country: Country (ISO).
longitude / latitude: Geocoded coordinates of the location.
geoLevel: Precision level of the geocode.

Web

website: Primary corporate URL.
webDomain: Normalised root domain.
websiteStatusFlag: Live / dead / redirect status from the last crawl.
websiteCrawlDate: Date the website was last checked.

Activity

altInternationalCode01–06: Up to six NACE Rev. 2 activity codes plus labels.
internationalCode: US SIC code.
localCode: National activity code.
infobelCode: Proprietary Infobel activity code.

Size

employeesHere: Headcount at this location.
employeesTotal: Total headcount across the entity (with Actual / Modeled flag).

Financials

salesVolume: Annual revenue in local currency.
salesVolumeEuros: Annual revenue converted to EUR.
salesVolumeDollars: Annual revenue converted to USD — shown in the table.
currency: Reporting currency.
yearStarted: Year the company was founded.
financialHistory: Multi-year revenue history where filed.

Status & legal

statusCodeName: HQ, branch or single-location indicator.
legalStatusCodeDescription: Legal form (e.g. limited company / corporation).

Group structure

familyMembers: Number of entities in the worldwide corporate family.
subsidiaryIndicator: Whether the entity is a subsidiary.
parentLinkage: Link to the parent company.
domesticLinkage / globalLinkage: Domestic and global ownership links.
hierarchyCode: Position within the corporate hierarchy.

Source comparison

official Slovenia business registry vs InfobelPRO

Official Slovenia business registry gives you legal registration data. InfobelPRO adds the commercial intelligence sales, marketing and compliance teams actually need.

Attribute	official Slovenia business registryFree official registry	InfobelPRO
Matična številka	Yes	Yes — on 99.9% of records
Legal name & registered address	Yes	Yes
Company status (HQ / branch)	Yes	Yes — daily sync
NACE sub-sector classification	Yes	Yes — up to 6 codes
Annual revenue (local / EUR / USD)	Filings only	Yes — multi-currency
Employee count	No	Yes
Decision-maker contacts	No	Yes — licensed
Geocoded coordinates	No	Yes
Corporate group structure	Filings only	Yes — full hierarchy
API access	No	Yes — REST API
Bulk export (CSV / JSON / Parquet)	No	Yes
Update frequency	Periodic (filings)	Daily sync

FAQ

Frequently asked questions

By the revenue shown in the directory above, the largest telecom companies in Slovenia include TELEKOM SLOVENIJE, d.d. ($753M), Telemach Slovenija d.o.o. ($320M) and A1 Slovenija, d. d. ($243M). Sort the Revenue column or filter by sub-sector, size and region to explore the full ranking.

InfobelPRO lists 463 telecom companies registered in Slovenia, classified under NACE 61, sourced from official Slovenia business registry. The directory covers all registered entities in scope, not a sampled subset.

Osrednjeslovenska holds the largest share with 52% of Slovenia's telecom companies, followed by Savinjska (10%) and Gorenjska (9%). The region chart above shows the full distribution.

Telecom companies in Slovenia are classified under NACE 61 — 2 sub-sector codes appear in this segment. Each record can carry up to six NACE Rev. 2 activity codes, plus a US SIC code and the national activity code.

Core firmographics come directly from official Slovenia business registry and are refreshed daily — new incorporations, address changes and status updates flow through within 24 hours of publication. Revenue and employee figures track annual report filings and carry an Actual-or-Modeled reliability flag.

Yes. InfobelPRO combines registry-sourced firmographics with licensed contact data, processed under GDPR Article 6(1)(f) — legitimate interest. Individual opt-outs are honoured and compliance documentation is available on request.

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API access, bulk export or CRM enrichment — 463 records with up to up to 500 attributes each.

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Explore more

Discover more segments in Slovenia

Related directories

See all company directories in Slovenia, explore the full Slovenia business database In the US classification, related SIC codes include SIC 4813 — Telephone Communications, Except Radiotelephone, SIC 4812 — Radiotelephone Communications and SIC 4899 — Communications Services, Not Elsewhere Classified., or see how Slovenia fits into the wider Europe business database.