Company lists · Data refreshed September 2026

Top 25 Custom SaaS developers based in Ireland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 84 companies tracked

RevenueBase identified 84 custom SaaS developers headquartered in Ireland as of September 2026 and tracks 367 professional contacts across them, including 112 with verified work emails and 15 with mobile numbers. Dublin is the largest hub.

This list covers custom SaaS developers 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 29, 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 29, 2026 86% judged on-target in blind review

84Companies

367Contacts tracked

112Verified emails

15Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest custom SaaS developers based in Ireland

Ranked by team size

Top 25 of 84 custom SaaS developers based in Ireland, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to custom SaaS developers: 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	Deveire	Indirect evidence	National Technology Park, IrelandHQ checked Sep 29, 2026	51-200	55 contacts →
	Indirect evidence “Deveire creates bespoke digital solutions that transform your business world.” Source: RevenueBase Database · checked Sep 29, 2026
2	Konnektable Technologies LTD	Indirect evidence	Waterford, IrelandHQ checked Sep 29, 2026	11-50	23 contacts →
	Indirect evidence “Konnektable Technologies is a software technology firm, based in the Republic of Ireland.” Source: RevenueBase Database · checked Sep 29, 2026
3	Devensis	Indirect evidence	Dublin 18, IrelandHQ checked Sep 29, 2026	11-50	21 contacts →
	Indirect evidence “At Devensis, we don’t just develop software-we create solutions that transform businesses.” Source: RevenueBase Database · checked Sep 29, 2026
4	DSI Decare Systems Ireland	Partial evidence	Curraheen Road, IrelandHQ checked Sep 29, 2026	51-200	20 contacts →
	Partial 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 29, 2026
5	Perfutil Technologies	Indirect evidence	Dublin, IrelandHQ checked Sep 29, 2026	11-50	15 contacts →
	Indirect 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 29, 2026
6	Dovetail Technologies LTD	Partial evidence	Dublin, IrelandHQ checked Sep 29, 2026	11-50	7 contacts →
	Partial evidence “Dovetail is a specialist provider of custom IT solutions.” Source: RevenueBase Database · checked Sep 29, 2026
7	Greenfinch Technology LTD	Indirect evidence	Dublin 2, IrelandHQ checked Sep 29, 2026	11-50	7 contacts →
	Indirect 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 29, 2026
8	Purpledecks	Indirect evidence	Longford, IrelandHQ checked Sep 29, 2026	11-50	6 contacts →
	Indirect evidence “We help Unlock your organisation's potential and bring your vision to life with our comprehensive end-to-end digital services, seamlessly transforming your core technology and…” Source: RevenueBase Database · checked Sep 29, 2026
9	Devhaus	Partial evidence	Gorey, IrelandHQ checked Sep 29, 2026	11-50	6 contacts →
	Partial evidence “We build hardworking software products your customers will love.” Source: RevenueBase Database · checked Sep 29, 2026
10	Ignite Software	Indirect evidence	Waterford, IrelandHQ checked Sep 29, 2026	1-10	6 contacts →
	Indirect evidence “Ignite Software specialize in Bespoke Software Development for your business needs.” Source: RevenueBase Database · checked Sep 29, 2026
11	UWS IE LTD	Partial evidence	Dublin, IrelandHQ checked Sep 29, 2026	11-50	6 contacts →
	Partial evidence “UWS is a custom software development company driven by creating business value with software.” Source: RevenueBase Database · checked Sep 29, 2026
12	Abbey Software Technologies	Indirect evidence	Ennis, IrelandHQ checked Sep 29, 2026	11-50	6 contacts →
	Indirect 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 29, 2026
13	Odin Consultants LTD	Indirect evidence	Dublin, IrelandHQ checked Sep 29, 2026	11-50	5 contacts →
	Indirect evidence “We are a software and data solutions company providing complete application delivery, from discovery through design, development QC to deployment.” Source: RevenueBase Database · checked Sep 29, 2026
14	Team Project	Indirect evidence	Co. Kildare, IrelandHQ checked Sep 29, 2026	1-10	5 contacts →
	Indirect 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 29, 2026
15	Jalmia Solutions	Indirect evidence	Tubbercurry, IrelandHQ checked Sep 29, 2026	1-10	4 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
16	Happen Software	Indirect evidence	Dublin, IrelandHQ checked Sep 29, 2026	1-10	4 contacts →
	Indirect evidence “We have a proven track record of delivering epic world-class business software.” Source: RevenueBase Database · checked Sep 29, 2026
17	Heaventree	Indirect evidence	Galway, IrelandHQ checked Sep 29, 2026	1-10	4 contacts →
	Indirect evidence “An Enterprise Ireland Approved Supplier, Heaventree has provided digital services Since 2008.” Source: RevenueBase Database · checked Sep 29, 2026
18	Seditio Group	Partial evidence	Dublin City, IrelandHQ checked Sep 29, 2026	11-50	3 contacts →
	Partial evidence “Seditio Group, a visionary software development company headquartered in Dublin, Ireland, with a branch in Cebu, specializes in custom cloud-based solutions and AI technologies.” Source: RevenueBase Database · checked Sep 29, 2026
19	Iguide Mobile Applications LTD	Indirect evidence	Santry, IrelandHQ checked Sep 29, 2026	11-50	2 contacts →
	Indirect evidence “Established in 2010, iGuide Mobile Applications Ltd, is a software development company specialising in the development of mobile optimised solutions.” Source: RevenueBase Database · checked Sep 29, 2026
20	Aitina Tech	Indirect evidence	Maynooth, IrelandHQ checked Sep 29, 2026	11-50	2 contacts →
	Indirect evidence “Aitina Tech Limited offers expertise in Application Development, Cloud Computing, API Development, IT Consultancy, Software Architecture, and Software Integration.” Source: RevenueBase Database · checked Sep 29, 2026
21	Laabamone Limited	Indirect evidence	Kilcullen, IrelandHQ checked Sep 29, 2026	51-200	1 contacts →
	Indirect evidence “Laabamone business solution is a leading software developing company” Source: RevenueBase Database · checked Sep 29, 2026
22	Eirtight Technology	Indirect evidence	Blackrock, IrelandHQ checked Sep 29, 2026	11-50	1 contacts →
	Indirect evidence “Eirtight is an award-winning cloud technology and software development services provider.” Source: RevenueBase Database · checked Sep 29, 2026
23	Aroobtech	Partial evidence	Lucan, IrelandHQ checked Sep 29, 2026	1-10	1 contacts →
	Partial evidence “We offer comprehensive website, software and mobile app development services, tailored strategies and SaaS development services to help you achieve your business goals.” Source: RevenueBase Database · checked Sep 29, 2026
24	Nebule Software	Indirect evidence	Sligo, IrelandHQ checked Sep 29, 2026	1-10	1 contacts →
	Indirect evidence “At Nebule Software, we specialize in delivering high-performance, scalable software solutions tailored to your business needs.” Source: RevenueBase Database · checked Sep 29, 2026
25	Business Software Solutions	Indirect evidence	Cork, IrelandHQ checked Sep 29, 2026	1-10	1 contacts →
	Indirect evidence “Business Software Solutions was established to provide companies with practical solutions to business challenges through innovative use of technology.” Source: RevenueBase Database · checked Sep 29, 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: custom SaaS developers. 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 custom SaaS developers.
Partial evidence: Its own public description names part of custom SaaS developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom SaaS developers. 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 84 custom SaaS developers based in Ireland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 112 reachable decision-makers.

Free signup · no credit card

View the full list →

Custom SaaS developers based in Ireland at a glance

As of Sep 29, 2026

30.5%Verified-email coverage

4.1%Mobile-number coverage

4.4Average contacts per company

1-10Median size (employees)

36.9%Largest-city concentration · Dublin

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Freshness & accuracy

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

Email last verified

Median 31.0d

450–30

6031–60

161–90

190–180

5180+

Company record updated

Median 84.0d

00–30

7031–60

12961–90

15290–180

16180+

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 custom SaaS developers, 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 “custom SaaS developers”. 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 custom SaaS developers), 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 custom SaaS developers, 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, 112 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 29, 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.

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 custom SaaS developers, 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 custom SaaS developers are there based in Ireland?

RevenueBase identified 84 custom SaaS developers 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?

Deveire, headquartered in Limerick, tops this list with the largest team on record.

Which city has the most custom SaaS developers?

Dublin leads with 31 headquartered companies, followed by Cork (3) and Tubbercurry (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 112 verified decision-maker contacts tracked across these 84 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 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 84 custom SaaS developers based in Ireland. Start with a free account, no credit card.

Download this list →

Related lists

Custom SaaS developers by geography

Browse the directory

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.