Companies in Dublin

Q: How many companies are in Dublin?

Our Dublin business directory currently lists every registered legal entity with a Dublin address in the official Ireland business register. The exact count is shown live at the top of this page.

Q: Where does Dublin company data come from?

Dublin records are sourced directly from the official Ireland business register and enriched with 50+ data points: revenue, employees, industry codes, contact details, and ownership.

Q: How often is Dublin data updated?

Core registry fields are refreshed weekly. Enriched fields (revenue, employees, contact) are refreshed monthly so your Dublin list never goes stale.

Q: Can I filter Dublin companies by industry?

Yes. Every Dublin record is tagged with SIC industry codes. You can request your directory filtered by one or several SIC codes, employee size bands, or revenue thresholds.

Q: Which file formats do you deliver?

Excel (.xlsx), CSV, and JSON. For API customers, data is streamed as paginated JSON. Custom formats (Parquet, SQL dump) are available on request.

Q: Is the Dublin data GDPR compliant?

Yes. We only deliver legal-entity data and publicly listed business contact details. We do not include personal data of natural persons unless required by the company register itself (e.g. sole traders).

Q: Can I get a sample before buying?

Yes. Request a free 100-record sample of Dublin data and we will email it within one business day.

Q: Do you offer API access for Dublin data?

Yes. The full Dublin dataset is available through our REST API with the same filters as our directory builder. See our API page for pricing tiers.

Q: How fast can Dublin data be delivered?

Standard Excel and CSV directories are delivered within 24 hours. API access is provisioned within one business day. Rush delivery (same-day) is available on request.

Q: Can I get historical Dublin data?

Snapshot data going back 3 years is available for most fields, and 7+ years for core registry fields. Useful for trend analysis and churn studies - ask for a custom quote.

Behind every street in Dublin sits a business. 117,342 of them, to be exact, all registered in the Ireland business register. The biggest single industry is holding firms with 9,232 companies, roughly 8% of everything that does business in the city.

117,342 businesses indexed

Microsoft Ireland Operations LIMITEDMicrosoft Ireland Operations LIMITED

	Company Name	Country	City	Address 1	State/Province	Postal Code	Website	Founding Year	Yearly Revenue in U.S. Dollars	Employees Total	Business Legal Type - Description	Number of Companies in Group	Company Registration Number
1	Microsoft Ireland Operations LIMITED	Ireland	Dublin	One Microsoft Place	Dublin	D18 P521	microsoft.*****	1996	$93,134,652,000	2,934	Corporation	1122	256796
2	Microsoft Ireland Research Unlimited Company	Ireland	Dublin	70 Sir John Rogerson'S Quay	Dublin	D02 R296	N/A	2001	$76,373,914,000	1,463	Corporation	1122	342235
3	Accenture Public LIMITED Company	Ireland	Dublin	1 Grand Canal Square	Dublin	D02 P820	accenture.*****	2009	$69,672,977,000	791,868	Corporation	1732	471706
4	Zurich Insurance Company LTD	Ireland	Dublin	Legal Department	Dublin	D01 R5P3	zurich.*****	1928	$68,124,000,000	11	Foreign company	1474	900488
5	Accenture LIMITED	Ireland	Dublin	1 Grand Canal Square Grand Canal Harbour	Dublin	D02P820	N/A	2001	$61,594,305,000	693,748	Corporation	1732	340745
6	Microsoft Round Island One Unlimited Company	Ireland	Dublin	70 Sir John Rogerson'S Quay	Dublin	D02 R296	N/A	2001	$48,103,892,000	17	Corporation	1122	348353
7	Microsoft Ireland Investments Unlimited Company	Ireland	Dublin	70 Sir John Rogerson'S Quay	Dublin	D02 R296	N/A	2021	$48,000,000,000	4	Corporation	1122	686775
8	United Airlines , INC.	Ireland	Dublin	61a	Dublin	N/A	united.*****	1980	$37,864,000,000	27	Foreign company	435	904061
9	Qatar Airways Group (q.c.s.c.)	Ireland	Dublin	Offices D045-02-36 Level 3 Mezzanine	Dublin	K67 P0E0	N/A	1993	$35,572,289,110	7	Foreign company	546	908631
10	Linde Public LIMITED Company	Ireland	Dublin	Ten	Dublin	N/A	N/A	2017	$33,005,000,000	65,815	Corporation	4099	606357
11	Nutricia Infant Nutrition LIMITED	Ireland	Dublin	70 Sir John Rogerson'S Quay	Dublin	D02 R296	nutricia.*****	2004	$28,950,339,008	88,843	Corporation	768	384474
12	Pfizer Service Company Ireland Unlimited Company	Ireland	Dublin	Ringsend Road	Dublin	D04 K7N3	N/A	1990	$27,888,666,000	53,449	Corporation	211	167647
13	Eaton CORPORATION Public LIMITED Company	Ireland	Dublin	Eaton House	Dublin	D04 Y0C2	eaton.*****	2012	$24,878,000,000	95	Corporation	1193	512978
14	Crh North America LIMITED	Ireland	Dublin	42 Fitzwilliam Square West	Dublin	D02 R279	crh.*****	1974	$24,002,608,119	79,560	Corporation	3160	47622
15	Diageo PLC	Ireland	Dublin	Guinness Storehouse St. James'S Gate	Dublin	D08 AX97	N/A	1923	$19,418,497,496	27,987	Foreign company	576	900038
16	Glaxosmithkline Trading Services LIMITED	Ireland	Dublin	12 River Walk	Dublin	D24	N/A	2005	$17,532,346,304	100	Corporation	700	406446
17	Mattest (ireland) LIMITED	Ireland	Dublin	Unit 2 Northwest Business Park	Dublin	D15 EF1H	mattest.*****	1976	$16,943,249,180	66,466	Corporation	3160	55796
18	Crh Group Services LIMITED	Ireland	Dublin	Stonemasons Way	Dublin	D16 KH51	crh.*****	1968	$16,943,249,180	66,466	Corporation	3160	26948
19	Crh Luxembourg Finance (europe) LIMITED	Ireland	Dublin	42 Fitzwilliam Square West	Dublin	D02 R279	crh.*****	1990	$16,943,249,180	66,466	Corporation	3160	159261
20	Agricultural Limestone LIMITED	Ireland	Dublin	42 Fitzwilliam Square Dublin 2.	Dublin	D02R279	crh.*****	1948	$16,943,249,180	66,466	Corporation	3160	12363
21	Tradburn LIMITED	Ireland	Dublin	Fortunestown, Tallaght	Dublin	D24	N/A	1993	$15,950,621,890	60,411	Corporation	3160	207037
22	Diageo Ireland Holdings Unlimited Company	Ireland	Dublin	St. James'S Gate	Dublin	D08 AX97	diageo.*****	1977	$15,849,096,600	23,720	Corporation	576	59784
23	Guinness Storehouse LIMITED	Ireland	Dublin	St James Gate	Dublin	D08 VF8H	guinness-storehouse.*****	1993	$15,849,096,600	23,720	Corporation	576	209698
24	Aon Public LIMITED Company	Ireland	Dublin	Metropolitan Building	Dublin	D01 K0Y8	aon.*****	2017	$15,698,000,000	57,924	Corporation	1813	604607
25	Dell Products Unlimited Company	Ireland	Dublin	S Quay 16	Dublin	D01 XE03	N/A	1992	$15,243,253,000	2,031	Corporation	757	191034

Showing 25 of 117,342 companies

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Largest companies in Dublin

Which company is the largest in Dublin depends on how you measure. You can look at valuation, at revenue or at how many people work there. Valuations are private for most companies, so here we stick to revenue and headcount.

By revenue, Microsoft Ireland Operations LIMITED comes first in Dublin. It is part of a group with $93.1 billion in yearly revenue. By headcount, Mattest (ireland) LIMITED comes first with 66,466 employees. We only looked at the 101,740 corporations in Dublin for this; sole traders, foundations and other legal forms are left out.

The two tables below show how all 117,342 companies in Dublin are spread across revenue and headcount bands.

Yearly revenue

56.5%of companies have less than $100,000 in yearly revenue

Revenue (USD)	Count	Share
up to $100,000	66,301	56.5%
$100,000 to $500,000	29,817	25.4%
$500,000 to $1M	4,242	3.6%
$1M to $5M	5,680	4.8%
$5M to $10M	1,504	1.3%
$10M to $50M	3,490	3.0%
$50M to $100M	649	0.6%
$100M to $500M	681	0.6%
$500M to $1B	129	0.1%
$1B or more	208	0.2%
Unknown	4,641	4.0%

Headcount

71.3%of companies have 1 to 4 employees

Employees	Count	Share
1-4	83,706	71.3%
5-9	11,947	10.2%
10-19	6,594	5.6%
20-49	4,559	3.9%
50-99	1,364	1.2%
100-199	728	0.6%
200-499	420	0.4%
500-999	152	0.1%
1,000-4,999	152	0.1%
5,000-9,999	13	<0.1%
10,000+	24	<0.1%
Unknown	7,683	6.5%

Source: business register and CompanyData. "Unknown" means no published figure.

Largest industries in Dublin

The biggest industry groups in Dublin by registered company count, with the top five companies by revenue in each.

Holding firms

9,232 companies

SIC 6719

View all 9,232 in our tool →

General business services

8,029 companies

SIC 7389

View all 8,029 in our tool →

Management consulting

7,213 companies

SIC 8742

View all 7,213 in our tool →

Miscellaneous business Credit Institutions

6,756 companies

SIC 6159

View all 6,756 in our tool →

IT services

4,090 companies

SIC 7379

View all 4,090 in our tool →

Restaurants and eating places

3,988 companies

SIC 5812

View all 3,988 in our tool →

Real estate agents and managers

3,510 companies

SIC 6531

View all 3,510 in our tool →

Trusts, Except Educational, Religious, and Charitable

2,463 companies

SIC 6733

View all 2,463 in our tool →

All industries in Dublin

Together, holding firms, general business services and management consulting make up the top three industries in Dublin, accounting for 21% of the city's commercial activity. The oldest company we can find in Dublin is Royal Dublin Society, founded in 1731, with Royal Irish Academy not far behind. They are still here, along with 117,340 other businesses in Dublin.

The city that brewed Guinness now hosts the European headquarters of many of the world's biggest tech names, alongside a busy financial district on the Liffey docks. All of them are in our data. Look up a company in the table at the top of this page, get the full list delivered as an Excel file, or pull the records straight into your own systems through our API.

Offices of Holding Companies, Not Elsewhere Classified9,232
Business Services, Not Elsewhere Classified8,029
Management Consulting Services7,213
Miscellaneous business Credit Institutions6,756
Computer Related Services, Not Elsewhere Classified4,090
Eating Places3,988
Nonclassifiable Establishments3,510
Real Estate Agents and Managers3,510
Trusts, Except Educational, Religious, and Charitable2,463
Lessors of Real Property, Not Elsewhere Classified2,349
Other industries66,202

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How you receive Dublin business data

Choose how you want to receive the data. Every company comes with 50+ fields, from address and industry to revenue and contact details, sourced from official Ireland business registers.

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Frequently Asked Questions

Common questions about searching, filtering, and ordering Dublin company data.