Company lists · Data refreshed September 2026

Top 25 HR outsourcing companies based in Ireland

Name: HR outsourcing companies based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 140 companies tracked

RevenueBase identified 140 HR outsourcing companies headquartered in Ireland as of September 2026 and tracks 4,095 professional contacts across them, including 1,723 with verified work emails and 110 with mobile numbers. Dublin is the largest hub.

This list covers HR outsourcing 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 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 HQ checked on every row Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

140Companies

4,095Contacts tracked

1,723Verified emails

110Mobile numbers

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The 25 largest HR outsourcing companies based in Ireland

Ranked by team size

Top 25 of 140 HR outsourcing companies based in Ireland, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names HR outsourcing companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	ServisourceIndirect evidence	Dundalk, IrelandHQ checked Sep 3, 2026	51-200	300
	“Servisource are here for our clients and candidates right when you need us.” Source: company website · checked Sep 3, 2026
2	OSSPartial evidence	Dublin 22, IrelandHQ checked Sep 3, 2026	501-1,000	186
	“Providing HR expertise, responding to individual company needs and forming the most appropriate recruitment solutions that add value to clients.” Source: company website · checked Sep 3, 2026
3	ICE GroupPartial evidence	Galway, IrelandHQ checked Sep 3, 2026	51-200	143
	“We Change Lives - ICE Group, the award-winning Recruitment, Training and Outsourced HR and Payroll Business partner to many successful Irish and Multinational organisations - home…” Source: company website · checked Sep 3, 2026
4	Flexsource SolutionsIndirect evidence	North Street, IrelandHQ checked Sep 3, 2026	51-200	134
	“At Flexsource, we deliver world-class talent management and recruitment services across a variety of light industrial sectors.” Source: company website · checked Sep 3, 2026
5	Kaizen Workforce SolutionsIndirect evidence	IrelandHQ checked Sep 3, 2026	501-1,000	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 3, 2026
6	CPL Integrated ServicesStrong evidence	Leixlip, IrelandHQ checked Sep 3, 2026	1,001-5,000	64
	“Cpl Integrated Services is a division of Cpl Resources Plc, a leading provider of recruitment and HR outsourcing solutions throughout Europe.” Source: company website · checked Sep 3, 2026
7	Collins Mcnicholas Recruitment & HR Services GroupIndirect evidence	Dublin, IrelandHQ checked Sep 3, 2026	11-50	61
	“Collins McNicholas is a multi-award-winning recruitment organisation that provides innovative talent solutions to organisations in Ireland.” Source: company website · checked Sep 3, 2026
8	BoundlessIndirect evidence	IrelandHQ checked Sep 3, 2026	11-50	32
	“Boundless helps companies hire and employ people globally safely, compliantly, and without surprises.” Source: company website · checked Sep 3, 2026
9	ADP HR & Payroll Services IrelandIndirect evidence	IrelandHQ checked Sep 3, 2026	11-50	23
	“ADP Ireland offers payroll with human resource management for all sizes of businesses and organisations registered in Ireland.” Source: company website · checked Sep 3, 2026
10	Adare Trusted People PartnersIndirect evidence	Dublin, IrelandHQ checked Sep 3, 2026	11-50	20
	“Leading Experts in Employment Law, Industrial Relations and best practice Human Resource Management in Ireland.” Source: company website · checked Sep 3, 2026
11	Clark RecruitmentPartial evidence	Co. Kildare, IrelandHQ checked Sep 3, 2026	51-200	20
	“Established in 1998, we offer comprehensive Recruitment Solutions: Executive Search \| Permanent \| Contract \| Temporary \| Recruitment Process Outsourcing \| Work Permits \| Salary…” Source: company website · checked Sep 3, 2026
12	Eflexes Staffing & RecruitmentIndirect evidence	Shannon, IrelandHQ checked Sep 3, 2026	51-200	17
	“eFlexes Recruitment, Staffing & Payroll solutions - where talent meets opportunity!” Source: company website · checked Sep 3, 2026
13	Canavan ByrneIndirect evidence	Lucan, IrelandHQ checked Sep 3, 2026	11-50	15
	“Canavan Byrne is a Management and Training Company.” Source: company website · checked Sep 3, 2026
14	Voltedge ManagementIndirect evidence	Blackrock, IrelandHQ checked Sep 3, 2026	11-50	13
	“Voltedge Management is a leading human resources consultancy based in Dublin.” Source: company website · checked Sep 3, 2026
15	Appian TaskIndirect evidence	IrelandHQ checked Sep 3, 2026	11-50	11
	“At Appian Task we take pride in our expertise and ability to provide Payroll and Administrative Solutions for your business.” Source: company website · checked Sep 3, 2026
16	TOM Smyth & Associates TSAPartial evidence	Midleton, IrelandHQ checked Sep 3, 2026	1-10	9
	“Established in 1991, Tom Smyth & Associates offer a full suite of HR and Employment Law services to Irish and international employers.” Source: company website · checked Sep 3, 2026
17	MSSPartial evidence	Dublin, IrelandHQ checked Sep 3, 2026	1-10	8
	“Are you a business owner looking for help with your HR issues?” Source: company website · checked Sep 3, 2026
18	Alpha C.S. LTDIndirect evidence	Kenmare, IrelandHQ checked Sep 3, 2026	51-200	7
	“Alpha Contract Solutions is a Human Resources company, who specialise in construction contracting, recruitment and labour supply, for our global clients needs.” Source: company website · checked Sep 3, 2026
19	HR Team ServicesPartial evidence	Dublin, IrelandHQ checked Sep 3, 2026	1-10	7
	“HR Team specialises in taking the stress out of staffing issues to help businesses flourish across Ireland and the UK.” Source: company website · checked Sep 3, 2026
20	Flexiforce Agency Staffing SolutionsPartial evidence	Waterford, IrelandHQ checked Sep 3, 2026	1-10	6
	“Flexiforce is your partner in flexible temporary staffing and outsourcing solutions nationwide.” Source: company website · checked Sep 3, 2026
21	Executive Edge RecruitmentPartial evidence	Dublin 24, IrelandHQ checked Sep 3, 2026	1-10	5
	“At Executive Edge, we believe in a partnership approach to HR solutions and professional recruitment.” Source: company website · checked Sep 3, 2026
22	Bond Personnel Group LTDIndirect evidence	IrelandHQ checked Sep 3, 2026	1-10	5
	“Bond Personnel is a Recruitment and Executive Search Firm established in 1997 and based in Dublin.” Source: company website · checked Sep 3, 2026
23	Albatel LTDIndirect evidence	Celbridge, IrelandHQ checked Sep 3, 2026	1-10	5
	“At Albatel, we believe that profitable businesses grow from profitable and well-managed teams, and that Human Resources are the most valuable resources a business has.” Source: company website · checked Sep 3, 2026
24	Kala TechnologyPartial evidence	Dublin, IrelandHQ checked Sep 3, 2026	1-10	5
	“Kala Technology markets their Human Resource Management System - HRMANTOOL® and are also resellers in Ireland for HR Manager's Talent Recruiter, the very successful online…” Source: company website · checked Sep 3, 2026
25	Boyd HRPartial evidence	Letterkenny, IrelandHQ checked Sep 3, 2026	1-10	4
	“Boyd HR have been established since The mission of the company is to offer small businesses the same human resource benefits that large multinational companies received from their…” Source: company website · checked Sep 3, 2026

Showing 25 of 140 HR outsourcing companies based in Ireland

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HR outsourcing companies based in Ireland at a glance

As of Sep 3, 2026

1-10Median size (employees)

DublinLargest hub · 41 HQs

110Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

104

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Verified emails by last verification

0–30

31–60

130

61–90

1,018

90–180

574

180+

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 HR outsourcing companies, 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 “HR outsourcing companies”. 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 HR outsourcing 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 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, 1,723 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 3, 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.

HR outsourcing companies by metro

HR outsourcing companies in Dublin41

Frequently asked

How many HR outsourcing companies are there based in Ireland?

RevenueBase identified 140 HR outsourcing 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?

Servisource, headquartered in Dundalk, tops this list with the largest team on record.

Which city has the most HR outsourcing companies?

Dublin leads with 41 headquartered companies, followed by Galway (6) and Cork (6).

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 1,723 verified decision-maker contacts tracked across these 140 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 3, 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.