Company lists · Data refreshed September 2026
Top 25 IT staffing firms based in Ireland
RevenueBase identified 312 IT staffing firms headquartered in Ireland as of September 2026 and tracks 4,815 professional contacts across them, including 1,235 with verified work emails and 300 with mobile numbers. Dublin is the largest hub.
This list covers IT staffing firms 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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.
The 25 largest IT staffing firms based in Ireland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 300 | ||||
“Servisource are here for our clients and candidates right when you need us.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 2 | 280 | ||||
“Our Role is To Help You Excel… Since 2002, Excel Recruitment has evolved into a multi-divisional organisation by providing a talented workforce to our clients and through…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 3 | 236 | ||||
“Winner of the Employment Recruitment Federation Large Agency of the Year 2025-2026** At FRS Recruitment, we like to say we are made different.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 4 | 200 | ||||
“Sigmar Recruitment established in 2002, is a leading Irish recruitment services company comprised of 14 specialist divisions covering the entire recruitment process and managed…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 5 | 130 | ||||
“The Brightwater Group is a highly reputable and established brand with a market presence of over 25 years in Ireland.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 6 | 95 | ||||
“Osborne is a Leading, International, Irish Owned, multi Award-Winning Recruitment Consultancy with a reputation for Recruitment Excellence.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 7 | 83 | ||||
“Whether you are looking for your next job, a new career or seeking a new highly qualified employee, we are the company who will deliver you the best outcome with the highest…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 8 | 78 | ||||
“The Right People For The Job Established in 2005, Building Staff Solutions (BSS) is one of Ireland’s leading outsourced solutions provider and recruitment specialists.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 9 | 74 | ||||
“ACCPRO specialises in delivering a high quality, highly tailored service to clients and candidates across finance, accountancy, HR, technology and life sciences.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 10 | 72 | ||||
“Unijobs is a recruitment company established for the purposes of providing a shared service designed to achieve efficiencies within the public sector.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 11 | 71 | ||||
“We’re Prosperity, Ireland’s leading digital talent matchmakers and career transition specialists.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 12 | 68 | ||||
“At Vantage Resources, we specialise in sourcing and providing outstanding professional IT talent to work on projects being undertaken by Ireland’s leading domestic & global…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 13 | 67 | ||||
“We are an international recruitment consultancy.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 14 | 66 | ||||
“We are an end to end workforce solutions partner optimising the power of people to drive organisational and personal growth.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 15 | 64 | ||||
“Alldus is a specialist staffing company with one single purpose: To connect the best people in Artificial Intelligence & Digital Transformation.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 16 | 61 | ||||
“Collins McNicholas is a multi-award-winning recruitment organisation that provides innovative talent solutions to organisations in Ireland.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 17 | 57 | ||||
“We're part of ManpowerGroup – the world's workforce expert!@ManpowerIreland ManpowerGroup has been the world’s workforce recruitment and career development expert.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 18 | 49 | ||||
“At Eden Recruitment, we live each day by the mantra "People.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 19 | 44 | ||||
“IT Search was founded in 2015 with the aim of providing a personal, approachable and recommendation worthy search & selection experience worldwide.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 20 | 38 | ||||
“Matrix Recruitment Group is a leading regional recruitment company.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 21 | 38 | ||||
“Mason Alexander is a recruitment company with one clear mission: a relentless focus to deliver optimal outcomes for clients and candidates.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 22 | 38 | ||||
“Welcome to Alternatives, Ireland’s No 1 provider of flexible and permanent marketing & digital talent.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 23 | 36 | ||||
“Reliable, Flexible, Fast & Focused.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 24 | 35 | ||||
“The Panel is a specialist, professional recruitment consultancy.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 25 | 34 | ||||
“GemPool - High-End IT recruitment company.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 312 IT staffing firms based in Ireland
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IT staffing firms based in Ireland at a glance
As of Sep 4, 2026Companies by employee count
Verified emails by last verification
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 IT staffing firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Ireland whose own description of what they do matches “IT staffing firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among IT staffing firms, 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 an evidence 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, 1,235 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 4, 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.
IT staffing firms by metro
- IT staffing firms in Dublin106
Frequently asked
How many IT staffing firms are there based in Ireland?
RevenueBase identified 312 IT staffing firms 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?
Servisource, headquartered in Dundalk, tops this list with the largest team on record.
Which city has the most IT staffing firms?
Dublin leads with 106 headquartered companies, followed by Cork (10) and Galway (8).
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 1,235 verified decision-maker contacts tracked across these 312 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 4, 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.