Company lists · Data refreshed September 2026

Top 25 Telecommunications companies based in Czechia

Name: Telecommunications companies based in Czechia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 76 companies tracked

RevenueBase identified 76 company matches for telecommunications companies associated with Czechia as of September 2026 and tracks 3,124 professional contacts across them, including 1,517 with verified work emails and 43 with mobile numbers. Prague is the largest hub.

This list covers company matches for telecommunications companies associated with Czechia, 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 6, 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 6, 2026 How this list was built

76Companies

3,124Contacts tracked

1,517Verified emails

43Mobile numbers

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The 25 largest telecommunications companies based in Czechia

Ranked by team size

Top 25 of 76 company matches for telecommunications companies based in Czechia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 6, 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	T-Mobile Czech Republic A.S	Exact match	Praha 4, Czech RepublicHQ recorded Sep 6, 2026	1,001-5,000	1,807 contacts →
	Exact match “T-Mobile Czech Republic, člen mezinárodní telekomunikační skupiny Deutsche Telekom, je téměř se 6,6 milionu mobilních zákazníků jedničkou na českém trhu.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
2	CRA	Exact match	Prague 6, Czech RepublicHQ recorded Sep 6, 2026	201-500	297 contacts →
	Exact match “České Radiokomunikace (CRA) has been at the heart of television and radio broadcasting in the Czech Republic since 1963.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
3	ČD - Telematika	Exact match	Prague, Czech RepublicHQ recorded Sep 6, 2026	501-1,000	207 contacts →
	Exact match “ČD - Telematika a.s.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
4	Poda A.S	Exact match	Ostrava, Czech RepublicHQ recorded Sep 6, 2026	201-500	80 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
5	Infotel, Spol. S R.O	Exact match	Brno, Czech RepublicHQ recorded Sep 6, 2026	201-500	56 contacts →
	Exact match “InfoTel, spol.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
6	Suntel S.R.O	Exact match	Nupaky, Czech RepublicHQ recorded Sep 6, 2026	201-500	52 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
7	Gity, A.S	Exact match	Brno, Czech RepublicHQ recorded Sep 6, 2026	51-200	50 contacts →
	Exact match “Akciová společnost GiTy poskytuje služby efektivní správy IT a komunikačního prostředí zákazníkům v podnikové sféře a státní správě.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
8	Avonet, S.R.O	Exact match	Zlín, Czech RepublicHQ recorded Sep 6, 2026	11-50	33 contacts →
	Exact match “AVONET je přední poskytovatel internetových služeb ve Zlínském kraji.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
9	Čeznet S.R.O	Exact match	Liberec - Liberec Iii-jeřáb, Czech RepublicHQ recorded Sep 6, 2026	201-500	21 contacts →
	Exact match “ČEZNET, s.r.o.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
10	Pe3ny NET S.R.O	Exact match	Prague 6, Czech RepublicHQ recorded Sep 6, 2026	51-200	18 contacts →
	Exact match “Regional ISP Member of RIPE and NIX.CZ Autonomous system - AS48926 Established in 2005 Leader of wifi revolution in Czech Republic Operate optical network across Prague Builder of…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
11	Internext 2000	Exact match	Zlín, Czech RepublicHQ recorded Sep 6, 2026	11-50	16 contacts →
	Exact match “INTERNEXT s.r.o.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
12	T-Mobile Infra CZ S.R.O	Exact match	Praha 11, Czech RepublicHQ recorded Sep 6, 2026	11-50	11 contacts →
	Exact match “Naší vášní je rozvíjet spojení po celé České republice.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
13	ÚVT Internet S.R.O	Exact match	Jesenice - Zdiměřice, Czech RepublicHQ recorded Sep 6, 2026	11-50	11 contacts →
	Exact match “Vítejte na profilu společnosti ÚVT Internet s.r.o.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
14	Telco PRO Services, A.S	Exact match	Prague, Czech RepublicHQ recorded Sep 6, 2026	11-50	9 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
15	Sychrovnet S.R.O	Exact match	Vsetín, Czech RepublicHQ recorded Sep 6, 2026	11-50	8 contacts →
	Exact match “Jsme telekomunikační společnost.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
16	Effective Invention, S.R.O	Exact match	Praha 10, Czech RepublicHQ recorded Sep 6, 2026	11-50	7 contacts →
	Exact match “Oficiální certifikovaný partner společnosti Vodafone Czech republic a.s.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
17	NGN CZ S.R.O	Exact match	Prague, Czech RepublicHQ recorded Sep 6, 2026	11-50	6 contacts →
	Exact match “Zaměřujeme se výhradně na poskytování profesionálních služeb pro firemní zákazníky a zajišťujeme komplexní telekomunikační a IT řešení- Profesionální připojení na míru vašeho…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
18	TC Servis, S.R.O	Exact match	Otrokovice, Czech RepublicHQ recorded Sep 6, 2026	11-50	6 contacts →
	Exact match “Společnost TC servis, s.r.o.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
19	jon.cz	Exact match	Kolín Iv, Czech RepublicHQ recorded Sep 6, 2026	51-200	5 contacts →
	Exact match “Spolehlivý a bezpečný internet, moderní IPTV a firemní telekomunikační řešení – s osobním přístupem a lokální péčí.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
20	Avonet Works, S.R.O	Exact match	Zlín, Czech RepublicHQ recorded Sep 6, 2026	1-10	4 contacts →
	Exact match “Jsme tým zkušených profesionálů s mnohaletou praxí Máme bohaté zkušenosti s výstavbou optických, metalických i bezdrátových sítí.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
21	Zlín Net, A.S	Exact match	Zlín, Czech RepublicHQ recorded Sep 6, 2026	11-50	3 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
22	Telco VNT S.R.O	Exact match	Vestec, Czech RepublicHQ recorded Sep 6, 2026	1-10	3 contacts →
	Exact match “Vítejte na webových stránkách společnosti Telco VNT s.r.o.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
23	Altel Czech S.R.O	Exact match	Plzeň 4, Czech RepublicHQ recorded Sep 6, 2026	1-10	3 contacts →
	Exact match “The company ALTEL Czech s.r.o.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
24	Artemis NET S.R.O	Exact match	Liberec, Czech RepublicHQ recorded Sep 6, 2026	1-10	2 contacts →
	Exact match “Jsme dodavatelem vysokorychlostního internetu, televize v HD kvalitě a moderních telekomunikačních služeb na bázi VoIP.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
25	Mtel Communications S.R.O	Exact match	Olomouc, Czech RepublicHQ recorded Sep 6, 2026	1-10	2 contacts →
	Exact match “Společnost MTEL Communications vznikla v roce 1995 a je zaměřena na výstavbu optických telekomunikačních a datových sítí.” Recorded in the RevenueBase company graph · Sep 6, 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 “telecommunications companies”. 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 76 telecommunications companies based in Czechia

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Telecommunications companies based in Czechia at a glance

As of Sep 6, 2026

48.6%Verified-email coverage

1.4%Mobile-number coverage

41.1Average contacts per company

11-50Median size (employees)

13.2%Largest-city concentration · Prague

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

1,3950–30

11331–60

061–90

090–180

9180+

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 Czechia whose business descriptions match “telecommunications companies” 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 1,517 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 6, 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.

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 “telecommunications companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecommunications companies are there based in Czechia?

RevenueBase identified 76 company matches for telecommunications companies associated with Czechia 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?

T-Mobile Czech Republic A.S tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most telecommunications companies?

Prague leads with 10 company records, followed by Brno (6) and Zlin (6).

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 1,517 professional contacts with verified work emails tracked across these 76 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 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 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.