Ireland— IE

Telecom companies in Ireland — browse 1.7K records

Browse 1,734 telecom companies in Ireland — registry-sourced from CRO, scoped to NACE 61. Each record carries up to up to 500 firmographic attributes — from CRO Number and registered address to revenue, headcount and corporate group structure. The largest by revenue are SERVICENOW IRELAND LIMITED ($1.9B), VODAFONE IRELAND LIMITED ($1.1B) and ALCHEMY TELCO SOLUTIONS LIMITED ($826M).

1.7K

Telecom companies

NACE codes

475

Group-linked records

Top companies

Largest telecom companies in Ireland (2026)

The largest telecom companies in Ireland by revenue are SERVICENOW IRELAND LIMITED ($1.9B), VODAFONE IRELAND LIMITED ($1.1B) and ALCHEMY TELCO SOLUTIONS LIMITED ($826M). 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 Irish telecom companies record with all attributes, by API, bulk export or CRM enrichment.

Showing 25 of 1,734 Irish telecom companies· click a column to sort, or a company for its full record

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Other telecommunications activities	Dublin	DAWSON STREET 60	600	$1.9B	2014	549967	Corporation	106
Wireless telecommunications activities	Dublin	Springfield Lane	963	$1.1B	2000	326967	Corporation	2,555
Wired telecommunications activities	Dublin	BURLINGTON ROAD 1	245	$826M	2017	595997	Corporation	9
Wireless telecommunications activities	Dublin 20	SIR JOHN ROGERSON'S QUAY 28	1,199	$667M	1999	316982	Corporation	5,043
Wireless telecommunications activities	Dublin 1	NORTH WALL QUAY	255	$400M	2015	557454	Corporation	86
Wireless telecommunications activities	Dublin 1	MAYOR STREET 39	681	$388M	2007	435668	Corporation	331
Wired telecommunications activities	Dublin	MOUNTAINVIEW LEOPARDSTOWN	150	$356M	1907	282638	Corporation	2,555
Other telecommunications activities	Dublin	Windmill Lane 1	141	$337M	2015	566503	Corporation	20
Wired telecommunications activities	Dublin	Landscape Road	56	$307M	2012	510230	Corporation	18
Wireless telecommunications activities	Dublin 18	SOUTH COUNTY BUSINESS PARK	141	$278M	1997	267717	Corporation	5
Other telecommunications activities	Galway	MERVUE	776	$273M	2001	342279	Corporation	405
Wireless telecommunications activities	Dublin	Hatch Street	123	$179M	1995	236074	Corporation	3,462
Wired telecommunications activities	Dun Laoghaire	MARINE ROAD	22	$105M	2006	421281	Corporation	4,316
Wireless telecommunications activities	Dublin	Spencer Dock	123	$105M	2019	657880	Corporation	10
Wired telecommunications activities	Dublin	LOWER BAGGOT STREET 19	251	$101M	2017	602786	Corporation	6
Wireless telecommunications activities	Dublin 20	EARLSFORT TERRACE 10	351	$84M	2006	415374	Corporation	12
Other telecommunications activities	Galway	EYRE SQUARE 7	45	$83M	2006	430836	Corporation	28
Other telecommunications activities	Dublin	Hatch Street	130	$82M	1996	254406	Corporation	3,462
Other telecommunications activities	Dublin	P6 Alfie Byrne Road	348	$77M	1999	314989	Corporation	892
Wired telecommunications activities	Dublin	Georges Dock 5	138	$66M	1997	275301	Corporation	Not available
Other telecommunications activities	Little Island	Ballytrasna	45	$66M	2019	659612	Corporation	6
Other telecommunications activities	Cork	Eastgate Business Park	44	$66M	1994	222170	Corporation	6
Other telecommunications activities	Dublin	Barrow Street	121	$64M	2009	473572	Corporation	1,422
Other telecommunications activities	Dublin	DUBLIN 12	3	$62M	2008	455591	Corporation	16
Other telecommunications activities	Kilkenny	DANVILLE BUSINESS PARK	267	$61M	2021	691833	Corporation	17

This is a sample. The full database holds 1,734 Irish telecom companies, each with every attribute in the dictionary below.

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Database overview

Telecom companies in Ireland — database overview

Distributions across all 1,734 telecom companies in Ireland — registry-sourced from CRO and refreshed daily.

Company size (by employee band)

1–9
85%
10–49
9%
50–199
5%
200–999
2%
1,000+
0%

Sub-sector breakdown (NACE)

Other telecommunications activities59%
Wired telecommunications activities32%
Wireless telecommunications activities10%

Regional distribution

Dublin
56%
Cork
10%
Kildare
3%
Galway
3%
Limerick
3%
Wicklow
3%
Other
22%

Revenue (USD)

Less than $100K
67%
$100K – $1M
23%
$1M – $10M
5%
$10M – $100M
4%
$100M+
1%

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

Data coverage

What data is available on telecom companies in Ireland

Ireland business database

Firmographics

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

Points of interest

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

Tax IDs

Records carry the CRO Number 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 CRO filings and carry an Actual-or-Modeled reliability flag.

Data dictionary

Every attribute in the Irish 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: CRO Number — the official CRO 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

CRO vs InfobelPRO

CRO gives you legal registration data. InfobelPRO adds the commercial intelligence sales, marketing and compliance teams actually need.

Attribute	CROFree official registry	InfobelPRO
CRO Number	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 Ireland include SERVICENOW IRELAND LIMITED ($1.9B), VODAFONE IRELAND LIMITED ($1.1B) and ALCHEMY TELCO SOLUTIONS LIMITED ($826M). Sort the Revenue column or filter by sub-sector, size and region to explore the full ranking.

InfobelPRO lists 1,734 telecom companies registered in Ireland, classified under NACE 61, sourced from CRO. The directory covers all registered entities in scope, not a sampled subset.

Dublin holds the largest share with 56% of Ireland's telecom companies, followed by Cork (10%) and Kildare (3%). The region chart above shows the full distribution.

Telecom companies in Ireland are classified under NACE 61 — 3 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 CRO 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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Explore more

Discover more segments in Ireland

Related directories

See all company directories in Ireland, explore the full Ireland 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 Ireland fits into the wider Europe business database.