Company lists · Data refreshed September 2026

Top 12 Sportswear design companies based in Ireland

RevenueBase identified 34 sportswear design companies headquartered in Ireland as of September 2026 and tracks 978 professional contacts across them, including 250 with verified work emails. Dublin is the largest hub.

This list covers sportswear design 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 19, 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 19, 2026 86% judged on-target in blind review
34Companies
978Contacts tracked
250Verified emails
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The 12 largest sportswear design companies based in Ireland

Ranked by team size
Top 12 of 34 sportswear design companies based in Ireland, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to sportswear design 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceDublin, IrelandHQ checked Sep 19, 2026501-1,000240 contacts →

Partial evidence

“Founded in 1918 originally as a manufacturer of gaelic footballs, O'Neills has grown into the largest sportswear manufacturing company in Ireland.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceDublin, IrelandHQ checked Sep 19, 2026501-1,000233 contacts →

Indirect evidence

“At Life Style Sports, we're not just a sports retailer – we're the epitome of inspiration and empowerment for the Stylised Athlete.”

Source: RevenueBase Database · checked Sep 19, 2026
3Partial evidenceBallybofey, IrelandHQ checked Sep 19, 202611-5020 contacts →

Partial evidence

“We supply sportswear, leisurewear, workwear and corporate clothing to clubs, businesses and organisations throughout Ireland, the UK and America.”

Source: RevenueBase Database · checked Sep 19, 2026
4Partial evidenceWaterford, IrelandHQ checked Sep 19, 202611-5013 contacts →

Partial evidence

“In 1990 we created a sports brand Azzurri Sport®, first producing golf clothing and with the plan to develop a team sportswear division in the coming years.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceDublin, IrelandHQ checked Sep 19, 202611-5013 contacts →

Indirect evidence

“Everybody's Athletic Brand.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceCastlequarter Borrisoleigh, IrelandHQ checked Sep 19, 202611-508 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
7Partial evidenceGorey, IrelandHQ checked Sep 19, 20261-108 contacts →

Partial evidence

“We are an authentic group of specialists in a wide range of high performance sportswear and accessories who are inspired to innovate the team-wear market globally.We create unique…”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceArdee, IrelandHQ checked Sep 19, 202651-2007 contacts →

Indirect evidence

“Welcome to DEFY Sports, a premier sport apparel manufacturing company based in the picturesque town of Ardee in Co Louth, Ireland.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceDublin, IrelandHQ checked Sep 19, 202611-505 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceDublin, IrelandHQ checked Sep 19, 20261-103 contacts →

Indirect evidence

“Athletic apparel for everyday wear.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceBaltinglass, IrelandHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“At APEC, we believe that within each of us lies boundless potential waiting to be unleashed.”

Source: RevenueBase Database · checked Sep 19, 2026
12Partial evidenceDublin 4, IrelandHQ checked Sep 19, 20261-102 contacts →

Partial evidence

“Founded and owned by Irish fashion business woman Jane Deasy, T&B designs sport chic-wear for women with a focus on creating stylish Athleisure for the busy, active lady on the go.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 12 of 34 sportswear design companies based in Ireland

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Sportswear design companies based in Ireland at a glance

As of Sep 19, 2026
25.6%Verified-email coverage
28.8Average contacts per company
1-10Median size (employees)
23.5%Largest-city concentration · Dublin
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
12
51-200
2
501-1,000
3

Email recency for this list is measured worldwide rather than for Ireland, so it is reported there. Company counts and contact totals on this page are exact for Ireland, over 34 companies.

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 sportswear design 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 “sportswear design 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 sportswear design 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 sportswear design 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, 250 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 19, 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 sportswear design 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 sportswear design companies are there based in Ireland?

RevenueBase identified 34 sportswear design 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?

O'neills Irish International Sports Co. LTD, headquartered in Ireland, tops this list with the largest team on record.

Which city has the most sportswear design companies?

Dublin leads with 8 headquartered companies, followed by Ardee (1) and Ballybofey (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 250 verified decision-maker contacts tracked across these 34 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 19, 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.