Company lists · Data refreshed September 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 Data refreshed Sep 1, 2026 56 companies tracked

RevenueBase identified 56 company matches for custom business software developers associated with Ireland as of September 2026 and 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 company matches for custom business software developers associated with Ireland, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 1, 2026 How this list was built

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 company matches for custom business software developers based in Ireland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Intact	Exact match	Dundalk, Ireland	201-500	188 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
2	Prostrategy	Exact match	Citywest Business Campus, Ireland	51-200	74 contacts →
	Exact match “Established in 1985, with offices in Cork & Dublin, ProStrategy has over 40 years’ experience providing Business Management Software Solutions & Services to Irish and…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
3	KEY Dynamics Solutions Private Limited	Exact match	Dublin, Ireland	51-200	43 contacts →
	Exact match “We provide intelligent customized business solutions for all your needs.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
4	Milner Browne	Exact match	Loughlinstown, Ireland	51-200	40 contacts →
	Exact match “Milner Browne provide business management software, services and support to small and medium-sized enterprises.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
5	Sybiz Software	Exact match	Rathfarnham, Ireland	11-50	27 contacts →
	Exact match “Sybiz creates software for your business.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
6	ISC Software Solutions LTD	Exact match	Ireland	11-50	27 contacts →
	Exact match “We offer a comprehensive range of consulting, custom software development and support services to assist customers to improve efficiencies through automating processes, accessing…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
7	Tangle Software INC	Exact match	Dublin, Ireland	11-50	11 contacts →
	Exact match “Tangle is (probably) the world’s first self-customising ERP.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
8	Systemlink North America, INC	Exact match	Naas, Ireland	11-50	10 contacts →
	Exact match “Since 1987, SystemLink North America, Inc.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
9	The Noledge Group	Exact match	Ireland	11-50	10 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
10	Devhaus	Exact match	Gorey, Ireland	11-50	7 contacts →
	Exact match “We build hardworking software products your customers will love.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
11	Profitsflow	Exact match	Ireland	11-50	7 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
12	Ignite Software	Exact match	Citywest, Ireland	1-10	6 contacts →
	Exact match “Ignite Software specialize in Bespoke Software Development for your business needs.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
13	Team Project	Exact match	Celbridge, Ireland	1-10	5 contacts →
	Exact match “Team Project design, implement and support cost-effective tailored software solutions using existing market leading software packages and development tools.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
14	Compucount	Exact match	Limerick, Ireland	1-10	5 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
15	Dotser Cloud Business Solutions	Exact match	Tullamore, Ireland	11-50	5 contacts →
	Exact match “Key processes Dotser has mastered include data exchange, ecommerce, event management and enterprise resource management.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
16	Jalmia Solutions	Exact match	Tubbercurry, Ireland	1-10	4 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
17	Happen Software	Exact match	Dublin, Ireland	1-10	4 contacts →
	Exact match “We have a proven track record of delivering epic world-class business software.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
18	H53 Technologies LTD	Exact match	Dublin, Ireland	1-10	4 contacts →
	Exact match “H53 Software Solutions specializes in building custom software applications that transform businesses.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
19	Software Support Group LTD	Exact match	Ireland	11-50	3 contacts →
	Exact match “Software Support Group established by Declan Costello and Ronnie Fleming has become a leading provider of business software solutions for SMEs in Ireland and abroad.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
20	Laabamone Limited	Exact match	Ireland	51-200	1 contacts →
	Exact match “Laabamone business solution is a leading software developing company” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
21	Accessnet Technologies	Exact match	Dublin, Ireland	1-10	1 contacts →
	Exact match “AccessNet Technologies specialise in delivering business management software and services to a broad range of organisations across many industry sectors.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
22	Encareo	Exact match	Portlaoise, Ireland	1-10	1 contacts →
	Exact match “Encareo - Giving your business that extra edge Founded in 2008, we supply ERP and business intelligence software to businesses that require that “extra edge’ in a competitive…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
23	Business Software Solutions	Exact match	Ballinhassig, Ireland	1-10	1 contacts →
	Exact match “Business Software Solutions was established to provide companies with practical solutions to business challenges through innovative use of technology.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
24	WIT Software Development LTD	Exact match	Ballinaclash, Ireland	1-10	1 contacts →
	Exact match “Delivering custom software solutions and IT consultancy” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
25	Baseline Solutions	Exact match	Mallow, Ireland	1-10	1 contacts →
	Exact match “Consulting for small and medium sized business – professional, fast, affordable Baseline Solutions is a small owner-managed company specialising in the improvement of business…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “custom business software developers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 56 custom business software developers based in Ireland

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Custom business software developers based in Ireland at a glance

As of Sep 1, 2026

53.2%Verified-email coverage

6.3%Mobile-number coverage

10.2Average contacts per company

1-10Median size (employees)

30.4%Largest-city concentration · Dublin

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Ireland whose business descriptions match “custom business software developers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 304 professional contacts with verified work emails across the full matched dataset. 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 1, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “custom business software developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many custom business software developers are there based in Ireland?

RevenueBase identified 56 company matches for custom business software developers associated with Ireland as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Intact tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most custom business software developers?

Dublin leads with 17 company records, 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 limited free results with 500 credits to start. Upgrading provides access to the 304 professional contacts with verified work emails tracked across these 56 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 1, 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 SmartSearch, 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.