Company lists · Data refreshed September 2026

Top 25 HR outsourcing advisors based in Ireland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 211 companies tracked

RevenueBase identified 211 HR outsourcing advisors headquartered in Ireland as of September 2026 and tracks 1,868 professional contacts across them, including 514 with verified work emails and 73 with mobile numbers. Dublin is the largest hub.

This list covers HR outsourcing advisors 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 30, 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 30, 2026 86% judged on-target in blind review

211Companies

1,868Contacts tracked

514Verified emails

73Mobile numbers

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The 25 largest HR outsourcing advisors based in Ireland

Ranked by team size

Top 25 of 211 HR outsourcing advisors based in Ireland, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to HR outsourcing advisors: 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	Servisource	Indirect evidence	Dundalk, IrelandHQ checked Sep 30, 2026	51-200	299 contacts →
	Indirect evidence “Servisource are here for our clients and candidates right when you need us.” Source: RevenueBase Database · checked Sep 30, 2026
2	OSS	Partial evidence	Dublin 22, IrelandHQ checked Sep 30, 2026	501-1,000	190 contacts →
	Partial evidence “Providing HR expertise, responding to individual company needs and forming the most appropriate recruitment solutions that add value to clients.” Source: RevenueBase Database · checked Sep 30, 2026
3	ICE Group	Partial evidence	Galway, IrelandHQ checked Sep 30, 2026	51-200	141 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 30, 2026
4	Flexsource Solutions	Indirect evidence	North Street, IrelandHQ checked Sep 30, 2026	51-200	133 contacts →
	Indirect evidence “At Flexsource, we deliver world-class talent management and recruitment services across a variety of light industrial sectors.” Source: RevenueBase Database · checked Sep 30, 2026
5	HRM Search Partners	Partial evidence	Dublin 2, IrelandHQ checked Sep 30, 2026	11-50	79 contacts →
	Partial evidence “HRM Search Partners are a unique Executive Search, Contract & Interim, and advisory firm, pioneering Executive Search, Contractor, Interim, and strategic talent intelligence data…” Source: RevenueBase Database · checked Sep 30, 2026
6	Kaizen Workforce Solutions	Indirect evidence	Dublin 2, IrelandHQ checked Sep 30, 2026	501-1,000	66 contacts →
	Indirect evidence “We are an end to end workforce solutions partner optimising the power of people to drive organisational and personal growth.” Source: RevenueBase Database · checked Sep 30, 2026
7	CPL Integrated Services	Strong evidence	Leixlip, IrelandHQ checked Sep 30, 2026	1,001-5,000	64 contacts →
	Strong evidence “Cpl Integrated Services is a division of Cpl Resources Plc, a leading provider of recruitment and HR outsourcing solutions throughout Europe.” Source: RevenueBase Database · checked Sep 30, 2026
8	Collins Mcnicholas Recruitment & HR Services Group	Indirect evidence	Dublin, IrelandHQ checked Sep 30, 2026	11-50	62 contacts →
	Indirect evidence “Collins McNicholas is a multi-award-winning recruitment organisation that provides innovative talent solutions to organisations in Ireland.” Source: RevenueBase Database · checked Sep 30, 2026
9	Barden B Corp	Partial evidence	Dublin, IrelandHQ checked Sep 30, 2026	11-50	60 contacts →
	Partial evidence “Barden is a partner-led talent advisory, recruitment, and executive search firm, with practices across Accounting, Legal & Tax, Technology, Transformation & Change, and other…” Source: RevenueBase Database · checked Sep 30, 2026
10	The HR Company	Strong evidence	Sandyford, IrelandHQ checked Sep 30, 2026	11-50	24 contacts →
	Strong evidence “The HR Company supports businesses with Tailored HR solutions, Dedicated HR Advisor, 24/7 HR Support, Employment Law' Compliance and HR Administration.” Source: RevenueBase Database · checked Sep 30, 2026
11	ADP HR & Payroll Services Ireland	Indirect evidence	Dublin, IrelandHQ checked Sep 30, 2026	11-50	23 contacts →
	Indirect evidence “ADP Ireland offers payroll with human resource management for all sizes of businesses and organisations registered in Ireland.” Source: RevenueBase Database · checked Sep 30, 2026
12	Adare Trusted People Partners	Indirect evidence	Dublin, IrelandHQ checked Sep 30, 2026	11-50	20 contacts →
	Indirect evidence “Leading Experts in Employment Law, Industrial Relations and best practice Human Resource Management in Ireland.” Source: RevenueBase Database · checked Sep 30, 2026
13	Lincoln Recruitment Specialists	Indirect evidence	Dublin 2, IrelandHQ checked Sep 30, 2026	11-50	19 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
14	HRP Group	Strong evidence	Dublin 8, IrelandHQ checked Sep 30, 2026	11-50	18 contacts →
	Strong evidence “HRP Group - Bespoke Resourcing & HR Outsourcing Solutions HRP Group is a professional Human Resources consultancy practice.” Source: RevenueBase Database · checked Sep 30, 2026
15	Eflexes Staffing & Recruitment	Indirect evidence	Shannon, IrelandHQ checked Sep 30, 2026	51-200	17 contacts →
	Indirect evidence “eFlexes Recruitment, Staffing & Payroll solutions - where talent meets opportunity!” Source: RevenueBase Database · checked Sep 30, 2026
16	Paycheck Plus By Iris	Indirect evidence	Drogheda, IrelandHQ checked Sep 30, 2026	11-50	17 contacts →
	Indirect evidence “Part of IRIS Software Group, Paycheck Plus is a global award winning payroll outsource service provider offering tailored services to companies with employees across the globe.” Source: RevenueBase Database · checked Sep 30, 2026
17	Connexus Recruit	Indirect evidence	Dublin, IrelandHQ checked Sep 30, 2026	1-10	16 contacts →
	Indirect evidence “Connexus is a Dublin-based talent consultancy partnering with Irish growth-stage businesses (typically 25–250 employees, €5m–€50m revenue) at pivotal moments of scale…” Source: RevenueBase Database · checked Sep 30, 2026
18	Optimize Recruitment LTD	Indirect evidence	Kilkenny, IrelandHQ checked Sep 30, 2026	1-10	15 contacts →
	Indirect evidence “Optimize Recruitment is a leading professional recruitment consultancy that provides tailored and adaptable services to clients in a wide range of industry sectors.” Source: RevenueBase Database · checked Sep 30, 2026
19	Canavan Byrne	Indirect evidence	Lucan, IrelandHQ checked Sep 30, 2026	11-50	15 contacts →
	Indirect evidence “Canavan Byrne is a Management and Training Company.” Source: RevenueBase Database · checked Sep 30, 2026
20	Voltedge Management	Indirect evidence	Blackrock, IrelandHQ checked Sep 30, 2026	11-50	13 contacts →
	Indirect evidence “Voltedge Management is a leading human resources consultancy based in Dublin.” Source: RevenueBase Database · checked Sep 30, 2026
21	Conscia Talent	Indirect evidence	Dublin, IrelandHQ checked Sep 30, 2026	1-10	12 contacts →
	Indirect evidence “Our Story: The name ‘Conscia’ comes from the Latin ‘Confidant’.” Source: RevenueBase Database · checked Sep 30, 2026
22	Appian Task	Indirect evidence	Sligo, IrelandHQ checked Sep 30, 2026	11-50	11 contacts →
	Indirect evidence “At Appian Task we take pride in our expertise and ability to provide Payroll and Administrative Solutions for your business.” Source: RevenueBase Database · checked Sep 30, 2026
23	GHR Consulting	Partial evidence	Galway, IrelandHQ checked Sep 30, 2026	1-10	9 contacts →
	Partial evidence “GHR Consulting is Galway's leading HR Consultancy.” Source: RevenueBase Database · checked Sep 30, 2026
24	Interval Group	Indirect evidence	Dublin, IrelandHQ checked Sep 30, 2026	51-200	9 contacts →
	Indirect evidence “Interval is a boutique consulting and recruitment firm helping industry-leading organisations achieve their goals through exceptional people and expertise.” Source: RevenueBase Database · checked Sep 30, 2026
25	TOM Smyth & Associates TSA	Partial evidence	Cork, IrelandHQ checked Sep 30, 2026	1-10	8 contacts →
	Partial evidence “Established in 1991, Tom Smyth & Associates offer a full suite of HR and Employment Law services to Irish and international employers.” Source: RevenueBase Database · checked Sep 30, 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: HR outsourcing advisors. 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 HR outsourcing advisors.
Partial evidence: Its own public description names part of HR outsourcing advisors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name HR outsourcing advisors. 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 211 HR outsourcing advisors based in Ireland

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HR outsourcing advisors based in Ireland at a glance

As of Sep 30, 2026

27.5%Verified-email coverage

3.9%Mobile-number coverage

8.9Average contacts per company

1-10Median size (employees)

39.8%Largest-city concentration · Dublin

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

169

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

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

Email last verified

Median 33.0d

1520–30

34231–60

1861–90

090–180

2180+

Company record updated

Median 95.0d

00–30

44531–60

43461–90

87290–180

117180+

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 advisors, 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 “HR outsourcing advisors”. 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 HR outsourcing advisors), 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 HR outsourcing advisors, 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, 514 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 30, 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 advisors by metro

HR outsourcing advisors in Dublin84

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 HR outsourcing advisors, 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 HR outsourcing advisors are there based in Ireland?

RevenueBase identified 211 HR outsourcing advisors 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 advisors?

Dublin leads with 84 headquartered companies, followed by Cork (8) and Galway (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 514 verified decision-maker contacts tracked across these 211 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 30, 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.