Company lists · Data verified August 2026

Top 25 Advertising agencies based in Dublin, Ireland

Name: Advertising agencies based in Dublin, Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 94 companies tracked

There are 94 advertising agencies headquartered in Dublin, Ireland (RevenueBase, August 2026). RevenueBase tracks 1,009 professional contacts across them, including 395 with verified work emails and 76 with mobile numbers. Dublin is the largest hub.

This list covers advertising agencies headquartered in Dublin, Ireland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

94Companies

1,009Contacts tracked

395Verified emails

76Mobile numbers

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The 25 largest advertising agencies based in Dublin, Ireland

Ranked by team size

Top 25 of 94 advertising agencies based in Dublin, Ireland, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	CORE	Dublin	201-500	283	179
2	CMS Marketing	Dublin	11-50	58	17
3	Legacy Communications	Dublin	11-50	36	28
4	The Public House	Dublin	11-50	36	20
5	Catalyst Media	Dublin	11-50	30	12
6	Universal Media	Dublin	11-50	29	1
7	Buymedia	Dublin	11-50	28	15
8	BBH Dublin	Dublin	11-50	24	15
9	Simply Social	Dublin	11-50	24	3
10	Tiny ARK	Dublin	11-50	23	13
11	Trinity Brand Group	Dublin	11-50	21	6
12	Havas Dublin	Dublin	11-50	19	12
13	Essencemediacom Ireland	Dublin	11-50	15	9
14	Curious Orange	Dublin	11-50	14	11
15	Together Digital	Dublin	11-50	13	9
16	Ripple	Dublin	1-10	8	7
17	UM Ireland	Dublin	11-50	7	4
18	Principle	Dublin	1-10	5	5
19	The Brill Building	Dublin	1-10	5	3
20	Urban Brand Creative	Dublin	1-10	4	3
21	Maven Marketing	Dublin	1-10	4	3
22	Catalyst	Dublin	11-50	4	2
23	KOBBA	Dublin	1-10	4	1
24	Bdifferent - Marketing	Dublin	1-10	3	1
25	Artisyn Communications	Dublin	1-10	2	2

Showing 25 of 94 advertising agencies based in Dublin, Ireland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 395 reachable decision-makers.

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Advertising agencies based in Dublin, Ireland at a glance

As of Aug 28, 2026

1-10Median size (employees)

DublinLargest hub · 94 HQs

76Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

5,001-10,000

Advertising agencies by metro in Ireland

Metro	Companies
Advertising agencies in Dublin	94
Advertising agencies in Cork	11
Advertising agencies in Galway	7
Advertising agencies in Dublin City	7
Advertising agencies in Ireland	5
Advertising agencies in Kilkenny	4
Advertising agencies in Harolds Cross	3

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “advertising agencies”, with match quality audited by blind human judging, and headquartered in Dublin, Ireland.
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: Contact records re-verify on a rolling cadence; 3 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many advertising agencies are there based in Dublin, Ireland?

There are 94 advertising agencies headquartered in Dublin, Ireland as of August 2026 (RevenueBase).

What is the largest company on this list?

CORE, headquartered in Dublin, tops this list with the largest team on record.

Which city has the most advertising agencies?

Dublin leads with 94 headquartered companies, followed by Cork (11) and Galway (7).

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 395 verified decision-maker contacts tracked across these 94 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.