Company lists · Data verified August 2026

Top 25 Business consulting firms based in Ireland

Name: Business consulting firms based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 408 companies tracked

There are 408 business consulting firms headquartered in Ireland (RevenueBase, August 2026). RevenueBase tracks 1,698 professional contacts across them, including 452 with verified work emails and 128 with mobile numbers. Dublin is the largest hub.

This list covers business consulting firms headquartered in 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.

408Companies

1,698Contacts tracked

452Verified emails

128Mobile numbers

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The 25 largest business consulting firms based in Ireland

Ranked by team size

Top 25 of 408 business consulting firms based in 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	Vision Consulting	n/a	n/a	202	37
2	Nucleo	Dublin	51-200	85	53
3	4oc	Dublin	51-200	57	49
4	Agile Executives	Dublin	11-50	52	18
5	Auxilia Group	Dublin	501-1,000	44	15
6	Harmonics	Dublin	11-50	42	10
7	Lbspartners	Limerick	11-50	27	10
8	Taylor Clarke	n/a	11-50	25	11
9	Pinnacle Project Partners	n/a	11-50	20	16
10	Impetus. Business Accelerated	Limerick	11-50	19	8
11	Clarion Consulting	Dublin	11-50	16	7
12	O'gorman Brannigan Purtill & CO	Ringsend	11-50	14	10
13	Pembroke Alliance	Carrickmacross	11-50	12	9
14	Optimum Results LTD	Dundalk	11-50	12	4
15	Team BDS	Belfast	11-50	8	6
16	Cytec Consulting	Dublin	11-50	8	6
17	Sterling Engineering LTD	Dublin	201-500	7	5
18	Genesis Ireland	n/a	11-50	6	5
19	SRG Strategy	Dublin	11-50	6	2
20	Neaufort	Cahir	11-50	6	2
21	Imppulsor	n/a	11-50	6	1
22	Pinta Consulting	Crosshaven	11-50	5	5
23	Prospectus Management Consultants	n/a	11-50	4	3
24	Workpillar	Sandyford	201-500	4	2
25	Odyssey Consultants	Dublin	11-50	4	2

Showing 25 of 408 business consulting firms based in Ireland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 452 reachable decision-makers.

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Business consulting firms based in Ireland at a glance

As of Aug 28, 2026

1-10Median size (employees)

DublinLargest hub · 147 HQs

128Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

333

11-50

51-200

201-500

501-1,000

Business consulting firms by metro

Metro	Companies
Business consulting firms in Dublin	147
Business consulting firms in Cork	23
Business consulting firms in Limerick	11
Business consulting firms in Blackrock	9
Business consulting firms in Galway	7
Business consulting firms in Waterford	5
Business consulting firms in Ireland	4

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 “business consulting firms”, with match quality audited by blind human judging, and headquartered in 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; 1 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 business consulting firms are there based in Ireland?

There are 408 business consulting firms headquartered in Ireland as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most business consulting firms?

Dublin leads with 147 headquartered companies, followed by Cork (23) and Limerick (11).

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 452 verified decision-maker contacts tracked across these 408 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.