Company lists · Data refreshed September 2026

Top 25 Enterprise custom software development companies based in Ireland

Name: Enterprise custom software development companies based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 106 companies tracked

RevenueBase identified 106 enterprise custom software development companies headquartered in Ireland as of September 2026 and tracks 859 professional contacts across them, including 364 with verified work emails and 40 with mobile numbers. Dublin is the largest hub.

This list covers enterprise custom software development companies headquartered in Ireland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 24, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 24, 2026 86% judged on-target in blind review

106Companies

859Contacts tracked

364Verified emails

40Mobile numbers

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The 25 largest enterprise custom software development companies based in Ireland

Ranked by team size

Top 25 of 106 enterprise custom software development companies based in Ireland, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise custom software development companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Intact	Strong evidence	Dundalk, IrelandHQ checked Sep 24, 2026	201-500	183 contacts →
	Strong evidence “Founded in 1992 Intact is an Ireland and UK based business management and ERP software and services company where all product development, consultancy and support is carried out…” Source: RevenueBase Database · checked Sep 24, 2026
2	Prostrategy	Partial evidence	Citywest Business Campus, IrelandHQ checked Sep 24, 2026	51-200	74 contacts →
	Partial evidence “Established in 1985, with offices in Cork & Dublin, ProStrategy has over 40 years’ experience providing Business Management Software Solutions & Services to Irish and…” Source: RevenueBase Database · checked Sep 24, 2026
3	Enterpryze ERP	Partial evidence	Dublin, IrelandHQ checked Sep 24, 2026	51-200	46 contacts →
	Partial evidence “Enterpryze is a global developer, innovator, and supplier of ERP (Enterprise Resource Planning) solutions for SMEs.” Source: RevenueBase Database · checked Sep 24, 2026
4	Milner Browne	Strong evidence	Loughlinstown, IrelandHQ checked Sep 24, 2026	51-200	40 contacts →
	Strong evidence “Milner Browne provide business management software, services and support to small and medium-sized enterprises.” Source: RevenueBase Database · checked Sep 24, 2026
5	Devensis	Partial evidence	Dublin 18, IrelandHQ checked Sep 24, 2026	11-50	21 contacts →
	Partial evidence “At Devensis, we don’t just develop software-we create solutions that transform businesses.” Source: RevenueBase Database · checked Sep 24, 2026
6	DSI Decare Systems Ireland	Strong evidence	Curraheen Road, IrelandHQ checked Sep 24, 2026	51-200	20 contacts →
	Strong evidence “DeCare Systems Ireland (DSI) is an enterprise software development company specialising in architecting, developing and integrating custom.Net and Java applications.” Source: RevenueBase Database · checked Sep 24, 2026
7	Anitech Solutions	Indirect evidence	Dublin, IrelandHQ checked Sep 24, 2026	11-50	18 contacts →
	Indirect evidence “Formed in 2006, Anitech Solutions is an I.T.” Source: RevenueBase Database · checked Sep 24, 2026
8	Perfutil Technologies	Partial evidence	Dublin, IrelandHQ checked Sep 24, 2026	11-50	15 contacts →
	Partial evidence “At Perfutil, we are committed to offering top-notch software solutions, seamlessly blending superior quality with cost-efficiency tailored to your business needs Our diverse team…” Source: RevenueBase Database · checked Sep 24, 2026
9	Lumenia Consulting	Partial evidence	Galway, IrelandHQ checked Sep 24, 2026	11-50	11 contacts →
	Partial evidence “Lumenia is an independent ERP consulting organisation, specialising in business transformation through the implementation of Enterprise Resource Planning and related enterprise…” Source: RevenueBase Database · checked Sep 24, 2026
10	Sapro Solutions LTD	Partial evidence	Dublin, IrelandHQ checked Sep 24, 2026	11-50	10 contacts →
	Partial evidence “SAPRO Solutions is an Irish based consultancy, specialising in Enterprise Applications and Technology and is an official member of the SAP® PartnerEdge® Open Ecosystem.” Source: RevenueBase Database · checked Sep 24, 2026
11	The Noledge Group	Indirect evidence	Dublin 15, IrelandHQ checked Sep 24, 2026	11-50	10 contacts →
	Indirect evidence “Awarded 2025 ICT Company of the Year by InBusiness Recognition Awards Based in Dublin, the tech centre of Europe, we’re a dedicated group of experienced, passionate and massively…” Source: RevenueBase Database · checked Sep 24, 2026
12	Profitsflow	Strong evidence	Rosslare Rd, IrelandHQ checked Sep 24, 2026	11-50	7 contacts →
	Strong evidence “Profitsflow.com was founded in 2009 with the purpose of delivering world class enterprise software solutions to Irish and UK SME's, primarily in the Manufacturing and Service…” Source: RevenueBase Database · checked Sep 24, 2026
13	Greenfinch Technology LTD	Strong evidence	Dublin 2, IrelandHQ checked Sep 24, 2026	11-50	7 contacts →
	Strong evidence “Greenfinch Technology, part of the TEKenable Group, is a Dublin based software development company focused on solving business problems with innovative technology.” Source: RevenueBase Database · checked Sep 24, 2026
14	Devhaus	Strong evidence	Gorey, IrelandHQ checked Sep 24, 2026	11-50	6 contacts →
	Strong evidence “We build hardworking software products your customers will love.” Source: RevenueBase Database · checked Sep 24, 2026
15	Bestsoft Consulting LTD	Partial evidence	Dublin, IrelandHQ checked Sep 24, 2026	11-50	6 contacts →
	Partial evidence “BestSoft Consulting is a SITECORE partner - we proud to partner with SiteCore to give our customers the opportunity of leading technology matched with leading consulting team.” Source: RevenueBase Database · checked Sep 24, 2026
16	Ignite Software	Strong evidence	Waterford, IrelandHQ checked Sep 24, 2026	1-10	6 contacts →
	Strong evidence “Ignite Software specialize in Bespoke Software Development for your business needs.” Source: RevenueBase Database · checked Sep 24, 2026
17	UWS IE LTD	Strong evidence	Dublin, IrelandHQ checked Sep 24, 2026	11-50	6 contacts →
	Strong evidence “UWS is a custom software development company driven by creating business value with software.” Source: RevenueBase Database · checked Sep 24, 2026
18	Abbey Software Technologies	Partial evidence	Ennis, IrelandHQ checked Sep 24, 2026	11-50	6 contacts →
	Partial evidence “Abbey Software Technologies is an idea commune manifested by a group of futurists, business strategists, creative minds, technowizs, that work in harmony to deliver smart &…” Source: RevenueBase Database · checked Sep 24, 2026
19	Team Project	Strong evidence	Co. Kildare, IrelandHQ checked Sep 24, 2026	1-10	5 contacts →
	Strong evidence “Team Project design, implement and support cost-effective tailored software solutions using existing market leading software packages and development tools.” Source: RevenueBase Database · checked Sep 24, 2026
20	Compucount	Indirect evidence	Dooradoyle, IrelandHQ checked Sep 24, 2026	1-10	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 24, 2026
21	Ircona	Strong evidence	Blanchardstown, IrelandHQ checked Sep 24, 2026	11-50	5 contacts →
	Strong evidence “Ircona is a world class design services company specializing in: Embedded Software Enterprise Solutions Ircona is a recognized expert in complex BIOS and EFI customization, and a…” Source: RevenueBase Database · checked Sep 24, 2026
22	Dotser Cloud Business Solutions	Partial evidence	Tullamore, IrelandHQ checked Sep 24, 2026	11-50	5 contacts →
	Partial evidence “Key processes Dotser has mastered include data exchange, ecommerce, event management and enterprise resource management.” Source: RevenueBase Database · checked Sep 24, 2026
23	Jalmia Solutions	Indirect evidence	Tubbercurry, IrelandHQ checked Sep 24, 2026	1-10	4 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 24, 2026
24	Happen Software	Partial evidence	Dublin, IrelandHQ checked Sep 24, 2026	1-10	4 contacts →
	Partial evidence “We have a proven track record of delivering epic world-class business software.” Source: RevenueBase Database · checked Sep 24, 2026
25	H53 Technologies LTD	Strong evidence	Dublin, IrelandHQ checked Sep 24, 2026	1-10	4 contacts →
	Strong evidence “H53 Software Solutions specializes in building custom software applications that transform businesses.” Source: RevenueBase Database · checked Sep 24, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: enterprise custom software development companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names enterprise custom software development companies.
Partial evidence: Its own public description names part of enterprise custom software development companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise custom software development companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 106 enterprise custom software development companies based in Ireland

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Enterprise custom software development companies based in Ireland at a glance

As of Sep 24, 2026

42.4%Verified-email coverage

4.7%Mobile-number coverage

8.1Average contacts per company

1-10Median size (employees)

32.1%Largest-city concentration · Dublin

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

2660–30

9331–60

361–90

090–180

2180+

Company record updated

Median 79.0d

00–30

17931–60

38961–90

25090–180

41180+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among enterprise custom software development companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Ireland whose own description of what they do matches “enterprise custom software development companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names enterprise custom software development companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among enterprise custom software development companies, and records with no verified work email. Companies headquartered outside Ireland are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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: Every listed company carries at least one verified work email, 364 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 24, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Enterprise custom software development companies by metro

Enterprise custom software development companies in Dublin34

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names enterprise custom software development companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many enterprise custom software development companies are there based in Ireland?

RevenueBase identified 106 enterprise custom software development companies headquartered in Ireland as of September 2026, matched on each company's own description of what it does rather than its industry code.

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 enterprise custom software development companies?

Dublin leads with 34 headquartered companies, followed by Limerick (4) and Cork (3).

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 364 verified decision-maker contacts tracked across these 106 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 24, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.