Custom Software Development Agencies in Ireland

13 custom software development agencies are listed in Ireland. 9 have been assessed on the Agency List Score as of October 2026; the highest-ranked is Marino Software at 97.0.

Ranked · 8 of 9 assessed

Ordered by Agency List Score
#1 of 9 assessed
Marino Software
97

Strategic design and development for mobile and cloud solutions

User Testing and Validation
#2 of 9 assessed
DVT
96
Verified

Custom software development and AI solutions for digital transformation.

Application DevelopmentData Engineering Pipelines
#3 of 9 assessed
Dan Malone
89

SEO and PPC services for inbound lead capture and search visibility

Data Hygiene and SyncHubSpot ImplementationLead Routing and Enrichment
#4 of 9 assessed
Communicraft
73

ISO 27001 certified web design and development for fintech client portals

Application DevelopmentSystems Integration
#5 of 9 assessed
HST Solutions
73

AI integration and software engineering for diverse industries

Application DevelopmentData Engineering Pipelines
#6 of 9 assessed
Greenfinch
73

Custom software solutions for diverse industries and platforms

Application DevelopmentData Engineering PipelinesSystems Integration
#7 of 9 assessed
Square1
73

Blending AI, design, and technology across payments, product, and cloud builds

Application Development
#8 of 9 assessed
Keeper Solutions
73

AI-Enabled Financial Software Development for FinTech Firms

Product Discovery and MVP

Also in Ireland · 5 not ranked here

4 have not yet been assessed on the Agency List Score. Alphabetical.
1 more listed here are not shown on this page.

About this ranking

What this page ranks

This page ranks 8 of the 9 assessed custom software development agencies in Ireland — the ones carrying a published score — out of 13 listed.

The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.

Cohorts and awards

Agencies are compared within a cohort — here, Custom Software Development in Ireland. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 9, so the strongest award available here is top 25%.

The 4 custom software development agencies not yet assessed are listed on this page but not ranked.

One more was assessed and no published evidence of its work was found, so no score is shown for it.

Read the full methodology

Paid placement

Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.

Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.

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Questions

How many custom software development agencies are in Ireland?
13 are listed on Agency List in Ireland. 9 of them have been assessed on the Agency List Score as of October 2026, and 8 of those carry a published score.
Which custom software development agency in Ireland is ranked highest?
Marino Software, with an Agency List Score of 97.0, ranks #1 of 9 assessed agencies in Custom Software Development in Ireland.
Why are 5 custom software development agencies listed here but not ranked?
4 of the 13 listed have not yet been assessed on the Agency List Score. One more was assessed and no published evidence of its work was found, so no score is shown for it. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
How is the ranking determined?
By Agency List Score, within the Custom Software Development in Ireland cohort of 9 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.