Company lists · Data verified August 2026

Top 25 Custom business software developers based in Ireland

Name: Custom business software developers based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 56 companies tracked

There are 56 custom business software developers headquartered in Ireland (RevenueBase, August 2026). RevenueBase tracks 571 professional contacts across them, including 304 with verified work emails and 36 with mobile numbers. Dublin is the largest hub.

This list covers custom business software developers 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.

56Companies

571Contacts tracked

304Verified emails

36Mobile numbers

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The 25 largest custom business software developers based in Ireland

Ranked by team size

Top 25 of 56 custom business software developers 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	Intact	Dundalk	201-500	188	146
2	Prostrategy	Citywest Business Campus	51-200	74	56
3	KEY Dynamics Solutions Private Limited	Dublin	51-200	43	16
4	Milner Browne	Loughlinstown	51-200	40	16
5	Sybiz Software	Rathfarnham	11-50	27	14
6	ISC Software Solutions LTD	n/a	11-50	27	11
7	Tangle Software INC	Dublin	11-50	11	9
8	Systemlink North America, INC	Naas	11-50	10	1
9	The Noledge Group	n/a	11-50	10	1
10	Devhaus	Gorey	11-50	7	5
11	Profitsflow	n/a	11-50	7	5
12	Ignite Software	Citywest	1-10	6	4
13	Team Project	Celbridge	1-10	5	2
14	Compucount	Limerick	1-10	5	2
15	Dotser Cloud Business Solutions	Tullamore	11-50	5	1
16	Jalmia Solutions	Tubbercurry	1-10	4	2
17	Happen Software	Dublin	1-10	4	2
18	H53 Technologies LTD	Dublin	1-10	4	1
19	Software Support Group LTD	n/a	11-50	3	2
20	Laabamone Limited	n/a	51-200	1	1
21	Accessnet Technologies	Dublin	1-10	1	1
22	Encareo	Portlaoise	1-10	1	1
23	Business Software Solutions	Ballinhassig	1-10	1	1
24	WIT Software Development LTD	Ballinaclash	1-10	1	1
25	Baseline Solutions	Mallow	1-10	1	1

Showing 25 of 56 custom business software developers based in Ireland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 304 reachable decision-makers.

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Custom business software developers based in Ireland at a glance

As of Aug 28, 2026

1-10Median size (employees)

DublinLargest hub · 17 HQs

36Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Custom business software developers by metro

Metro	Companies
Custom business software developers in Dublin	17
Custom business software developers in Limerick	2
Custom business software developers in Maynooth	1
Custom business software developers in Manorhamilton	1
Custom business software developers in Celbridge	1
Custom business software developers in Naas	1
Custom business software developers in Dundalk	1

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 “custom business software developers”, 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; 2 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 custom business software developers are there based in Ireland?

There are 56 custom business software developers headquartered in Ireland as of August 2026 (RevenueBase).

What is the largest company on this list?

Intact, headquartered in Dundalk, tops this list with the largest team on record.

Which city has the most custom business software developers?

Dublin leads with 17 headquartered companies, followed by Limerick (2) and Maynooth (1).

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 304 verified decision-maker contacts tracked across these 56 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.