Company lists · Data refreshed September 2026

Top 25 Telecommunications infrastructure providers based in Ireland

Name: Telecommunications infrastructure 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 68 companies tracked

RevenueBase identified 68 company matches for telecommunications infrastructure providers associated with Ireland as of September 2026 and tracks 4,550 professional contacts across them, including 1,442 with verified work emails. Dublin is the largest hub.

This list covers company matches for telecommunications infrastructure providers associated with Ireland, 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 19, 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 19, 2026 How this list was built

68Companies

4,550Contacts tracked

1,442Verified emails

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The 25 largest telecommunications infrastructure providers based in Ireland

Ranked by team size

Top 25 of 68 company matches for telecommunications infrastructure providers based in Ireland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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	Entegro	Exact match	Kilkenny, IrelandHQ recorded Sep 19, 2026	201-500	210 contacts →
	Exact match “Entegro is at the forefront of Telecommunications technology, designing and deploying gigabit networks for future generations.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	BSO	Exact match	Dublin, IrelandHQ recorded Sep 19, 2026	51-200	201 contacts →
	Exact match “Founded in and with a heritage serving the world’s largest financial institutions, BSO is a global pioneering infrastructure and connectivity provider, serving more than 400…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Enet Open Access Networks	Exact match	Castletroy, IrelandHQ recorded Sep 19, 2026	51-200	196 contacts →
	Exact match “Unlocking Ireland's Digital Potential: Enet, Your Gateway to Global Connectivity!” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	EIR Business	Exact match	Dublin 8, IrelandHQ recorded Sep 19, 2026	501-1,000	188 contacts →
	Exact match “eir business is Ireland’s trusted provider of secure, managed connectivity, cloud, cybersecurity, workplace, mobile and technology talent solutions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	SIRO	Exact match	Dublin, IrelandHQ recorded Sep 19, 2026	51-200	149 contacts →
	Exact match “SIRO have always been fibre first with a 100% fibre-to-the-building network built on the ESB infrastructure.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Open EIR	Exact match	Dublin 8, IrelandHQ recorded Sep 19, 2026	1,001-5,000	138 contacts →
	Exact match “open eir builds and manages the largest wholesale telecoms network in Ireland.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	Secto Services Limited	Exact match	Maynooth, IrelandHQ recorded Sep 19, 2026	201-500	136 contacts →
	Exact match “Delivering Successful Engineering and Technical Services Secto Services is a fast growing Infrastructure build and engineering solutions company where customer service and the…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Delmec	Exact match	Graiguecullen, IrelandHQ recorded Sep 19, 2026	51-200	135 contacts →
	Exact match “Delmec Engineering is an international telecom infrastructure engineering company helping Mobile Network Operators (MNOs), Tower Companies (TowerCos), infrastructure investors and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Magnet	Exact match	Dublin 17, IrelandHQ recorded Sep 19, 2026	51-200	87 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Dexgreen LTD	Exact match	Cork, IrelandHQ recorded Sep 19, 2026	11-50	83 contacts →
	Exact match “DexGreen Ltd has operated for over 27 years, engineering novel solutions by collaborating directly with our clients.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	CET Connect	Exact match	Clonmel, IrelandHQ recorded Sep 19, 2026	51-200	80 contacts →
	Exact match “CET Connect is a leading installer of IT Network Infrastructure & Structured Cabling Installations.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Vodafone	Exact match	Donegal Town, IrelandHQ recorded Sep 19, 2026	51-200	60 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Telcom	Exact match	Dublin, IrelandHQ recorded Sep 19, 2026	11-50	60 contacts →
	Exact match “Established in by its current managing director, Liam Tully Snr, Telcom is a privately-owned ISP, unified communications and managed services specialist.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Digiweb	Exact match	Dundalk, IrelandHQ recorded Sep 19, 2026	51-200	46 contacts →
	Exact match “Digiweb is Ireland’s leading independent Telecommunications company.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Pure Telecom Ireland	Exact match	Dublin, IrelandHQ recorded Sep 19, 2026	51-200	43 contacts →
	Exact match “Pure Telecom, an Irish owned company, has been providing fixed line, broadband and Cloud Telecoms services since 2002.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Glenline Telecoms	Exact match	Clane, IrelandHQ recorded Sep 19, 2026	51-200	37 contacts →
	Exact match “The purpose of our business is to provide design and build engineering service to mobile phone operators, equipment vendors and tower infrastructure providers throughout Ireland.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Fastcom	Exact match	Co. Sligo, IrelandHQ recorded Sep 19, 2026	11-50	36 contacts →
	Exact match “Fastcom is Ireland's fastest-growing telecommunications provider, offering the best #fibre and #wireless broadband and phone services available to homes and businesses across…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Spectrum Telecom Installations LTD	Exact match	Clane, IrelandHQ recorded Sep 19, 2026	51-200	33 contacts →
	Exact match “Spectrum is a leading supplier of network deployment and build solutions together with the provision of high quality maintenance services for the telecommunications industry in…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Towercom	Exact match	Dublin, IrelandHQ recorded Sep 19, 2026	11-50	28 contacts →
	Exact match “We are one of Ireland’s longest-established independent wireless infrastructure providers.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Circet Data Centre Services	Exact match	Dublin 15, IrelandHQ recorded Sep 19, 2026	11-50	26 contacts →
	Exact match “Supply and install of Fibre and Copper cable systems for both the Telecom and Data Industry, Data centre Specialists.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	2rn	Exact match	Dublin 24, IrelandHQ recorded Sep 19, 2026	51-200	22 contacts →
	Exact match “2rn is an infrastructure and service provider to the broadcast transmission and wireless telecommunication markets in Ireland.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Network 2000	Exact match	County Dublin, IrelandHQ recorded Sep 19, 2026	11-50	21 contacts →
	Exact match “Established in 2002, Network has been providing dedicated and specialised telecommunications infrastructure services to the commercial, industrial & public sectors.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Access Data Installations Ireland LTD	Exact match	Co. Cork, IrelandHQ recorded Sep 19, 2026	11-50	21 contacts →
	Exact match “ADI(Ireland) Ltd.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	Cellnet	Exact match	Ennis, IrelandHQ recorded Sep 19, 2026	1-10	21 contacts →
	Exact match “Cellnet is an exciting independent telecommunications business providing Home & Business owners with Broadband, WiFi, Networking solutions and Cellular coverage solutions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Synchro	Exact match	Dún Laoghaire–rathdown, IrelandHQ recorded Sep 19, 2026	201-500	20 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 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 infrastructure providers”. 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 68 telecommunications infrastructure providers based in Ireland

See the full list, filter by size, metro and specialty, and access 1,442 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Telecommunications infrastructure providers based in Ireland at a glance

As of Sep 19, 2026

31.7%Verified-email coverage

66.9Average contacts per company

11-50Median size (employees)

16.2%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 68 companies.

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 Ireland whose business descriptions match “telecommunications infrastructure providers” 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 1,442 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 19, 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 infrastructure providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecommunications infrastructure providers are there based in Ireland?

RevenueBase identified 68 company matches for telecommunications infrastructure providers associated with Ireland 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?

Entegro tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most telecommunications infrastructure providers?

Dublin leads with 11 company records, followed by Clane (2) and Galway (2).

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 1,442 professional contacts with verified work emails tracked across these 68 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 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 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.