Company lists · Data refreshed September 2026

Top 25 Telecommunications providers based in Ireland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 73 companies tracked

RevenueBase identified 73 telecommunications providers headquartered in Ireland as of September 2026 and tracks 4,496 professional contacts across them, including 1,080 with verified work emails. Dublin is the largest hub.

This list covers telecommunications providers headquartered in Ireland, 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 19, 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 19, 2026 86% judged on-target in blind review

73Companies

4,496Contacts tracked

1,080Verified emails

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The 25 largest telecommunications providers based in Ireland

Ranked by team size

Top 25 of 73 telecommunications providers based in Ireland, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to telecommunications providers: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	EIR Ireland	Strong evidence	St Johns Road West, IrelandHQ checked Sep 19, 2026	1,001-5,000	2,495 contacts →
	Strong evidence “eir is the principal provider of fixed-line and mobile telecommunications services in Ireland with approximately 2 million customers.” Source: RevenueBase Database · checked Sep 19, 2026
2	Entegro	Strong evidence	Kilkenny, IrelandHQ checked Sep 19, 2026	201-500	210 contacts →
	Strong evidence “Entegro is at the forefront of Telecommunications technology, designing and deploying gigabit networks for future generations.” Source: RevenueBase Database · checked Sep 19, 2026
3	EIR Business	Indirect evidence	Dublin 8, IrelandHQ checked Sep 19, 2026	501-1,000	188 contacts →
	Indirect evidence “eir business is Ireland’s trusted provider of secure, managed connectivity, cloud, cybersecurity, workplace, mobile and technology talent solutions.” Source: RevenueBase Database · checked Sep 19, 2026
4	DIDWW	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 2026	51-200	120 contacts →
	Indirect evidence “DIDWW is a fully licensed telecom operator specializing in two-way Voice and Messaging services in 90+ geographies.” Source: RevenueBase Database · checked Sep 19, 2026
5	Magnet	Indirect evidence	Dublin 17, IrelandHQ checked Sep 19, 2026	51-200	87 contacts →
	Indirect evidence “Magnet Plus is Ireland’s leading provider of enterprise level connectivity, cloud-based voice solutions and tailored managed services and a core part of Speed Fibre Group…” Source: RevenueBase Database · checked Sep 19, 2026
6	Vodafone	Indirect evidence	Donegal Town, IrelandHQ checked Sep 19, 2026	51-200	60 contacts →
	Indirect evidence “At Kelco Communications, we’re proud to keep Ireland connected through our network of 18 Vodafone Partner stores and our team of field agents on the ground across the West and…” Source: RevenueBase Database · checked Sep 19, 2026
7	Telcom	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 2026	11-50	60 contacts →
	Indirect evidence “Established in by its current managing director, Liam Tully Snr, Telcom is a privately-owned ISP, unified communications and managed services specialist.” Source: RevenueBase Database · checked Sep 19, 2026
8	King Communications	Indirect evidence	Cavan, IrelandHQ checked Sep 19, 2026	51-200	56 contacts →
	Indirect evidence “Vodafone Preferred Partner providing quality Mobile Phones, TV & Broadband to customers across Ireland!” Source: RevenueBase Database · checked Sep 19, 2026
9	IP Telecom	Indirect evidence	Dublin 12, IrelandHQ checked Sep 19, 2026	11-50	48 contacts →
	Indirect evidence “IP Telecom is Ireland's only dedicated VoIP provider, delivering quality business solutions and unparalleled customer support since 2010.” Source: RevenueBase Database · checked Sep 19, 2026
10	Digiweb	Strong evidence	Dundalk, IrelandHQ checked Sep 19, 2026	51-200	46 contacts →
	Strong evidence “Digiweb is Ireland’s leading independent Telecommunications company.” Source: RevenueBase Database · checked Sep 19, 2026
11	Pure Telecom Ireland	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 2026	51-200	43 contacts →
	Indirect evidence “Pure Telecom, an Irish owned company, has been providing fixed line, broadband and Cloud Telecoms services since 2002.” Source: RevenueBase Database · checked Sep 19, 2026
12	Fastcom	Strong evidence	Co. Sligo, IrelandHQ checked Sep 19, 2026	11-50	36 contacts →
	Strong evidence “Fastcom is Ireland's fastest-growing telecommunications provider, offering the best #fibre and #wireless broadband and phone services available to homes and businesses across…” Source: RevenueBase Database · checked Sep 19, 2026
13	O2 Ireland	Indirect evidence	Dublin 2, IrelandHQ checked Sep 19, 2026	1,001-5,000	32 contacts →
	Indirect evidence “O2 Ireland is now trading as Three Ireland.” Source: RevenueBase Database · checked Sep 19, 2026
14	Towercom	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 2026	11-50	28 contacts →
	Indirect evidence “We are one of Ireland’s longest-established independent wireless infrastructure providers.” Source: RevenueBase Database · checked Sep 19, 2026
15	2rn	Strong evidence	Dublin 24, IrelandHQ checked Sep 19, 2026	51-200	22 contacts →
	Strong evidence “2rn is an infrastructure and service provider to the broadcast transmission and wireless telecommunication markets in Ireland.” Source: RevenueBase Database · checked Sep 19, 2026
16	BBNET	Indirect evidence	Shannon, IrelandHQ checked Sep 19, 2026	11-50	22 contacts →
	Indirect evidence “At BBnet, we’ve been delivering innovative solutions to businesses across Ireland since 2001.” Source: RevenueBase Database · checked Sep 19, 2026
17	Elio Networks	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 2026	11-50	21 contacts →
	Indirect evidence “Say hello to a connectivity provider that aims higher, connects faster, and performs smarter.” Source: RevenueBase Database · checked Sep 19, 2026
18	Network 2000	Strong evidence	County Dublin, IrelandHQ checked Sep 19, 2026	11-50	21 contacts →
	Strong evidence “Established in 2002, Network has been providing dedicated and specialised telecommunications infrastructure services to the commercial, industrial & public sectors.” Source: RevenueBase Database · checked Sep 19, 2026
19	Cellnet	Strong evidence	Ennis, IrelandHQ checked Sep 19, 2026	1-10	21 contacts →
	Strong evidence “Cellnet is an exciting independent telecommunications business providing Home & Business owners with Broadband, WiFi, Networking solutions and Cellular coverage solutions.” Source: RevenueBase Database · checked Sep 19, 2026
20	Synchro	Strong evidence	Dún Laoghaire–rathdown, IrelandHQ checked Sep 19, 2026	201-500	20 contacts →
	Strong evidence “Synchro is a young and dynamic Irish company established in 2010 to provide managed services to the eir Group; the principal provider of fixed-line and mobile telecommunications…” Source: RevenueBase Database · checked Sep 19, 2026
21	Multinet Systems LTD	Indirect evidence	Co. Dublin, IrelandHQ checked Sep 19, 2026	1-10	19 contacts →
	Indirect evidence “Authorised Irish Distributors for.” Source: RevenueBase Database · checked Sep 19, 2026
22	Regional Broadband	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 2026	11-50	16 contacts →
	Indirect evidence “We provide broadband options in rural areas where nobody else can.” Source: RevenueBase Database · checked Sep 19, 2026
23	Thomond Communications LTD	Indirect evidence	Limerick, IrelandHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “Thomond Communications Ltd was established in 2005 to provide a turnkey solution in the Telecomms/Datacomms market.” Source: RevenueBase Database · checked Sep 19, 2026
24	Lightnet	Indirect evidence	Loughrea, IrelandHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence “Lightnet are an Irish company providing broadband, VoIP and connectivity solutions to homes and businesses.” Source: RevenueBase Database · checked Sep 19, 2026
25	Clear Connections	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “At Clear Connections our mission is to deliver cost-effective, robust communication solutions that keep your business connected to both customers and staff.” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: telecommunications providers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names telecommunications providers.
Partial evidence: Its own public description names part of telecommunications providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name telecommunications providers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 73 telecommunications providers based in Ireland

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Telecommunications providers based in Ireland at a glance

As of Sep 19, 2026

24.0%Verified-email coverage

61.6Average contacts per company

11-50Median size (employees)

20.5%Largest-city concentration · Dublin

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for Ireland, so it is reported there. Company counts and contact totals on this page are exact for Ireland, over 73 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 telecommunications providers, 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 Ireland whose own description of what they do matches “telecommunications providers”. 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 telecommunications providers), 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 telecommunications providers, and records with no verified work email. Companies headquartered outside Ireland 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, 1,080 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 19, 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 telecommunications providers, 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 telecommunications providers are there based in Ireland?

RevenueBase identified 73 telecommunications providers headquartered in Ireland 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?

EIR Ireland, headquartered in Ireland, tops this list with the largest team on record.

Which city has the most telecommunications providers?

Dublin leads with 15 headquartered companies, followed by Rathfarnham (2) and Abbeyland (1).

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 1,080 verified decision-maker contacts tracked across these 73 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 19, 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.