Top Companies
- M3 Mulhuddart Services
- MCR Group - MCR Outsourcing
- MCS Group
- MSL Engineering Limited
- Mainline Utilities Group Ltd. T/a
- Manguard Plus
- Mannings Bakery
- Manpower Ireland
- Manpower UK
- ManpowerGroup Inc
- Maria Logan Recruitment
- Marks Sattin
- Marlfield House
- Marqette Restaurant Dublin Airport
- Marriott International, Inc
- Marsh & McLennan Companies, Inc
- Mastercard
- MatchMedics
- Mater Misericordiae University Hospital
- Mater Private Healthcare
- MathWorks
- Matrix Recruitment Group
- Mattinson Partnership
- Maxi Zoo (Fressnapf Group)
- Mazars
- McCabes Pharmacy
- McCurrach
- McWilliam Park Hotel
- Mercer LLC
- Mercury Engineering
- Mercy University Hospital
- Merit Medical Systems
- Merrion Hotel
- Mespil Hotel
- MetLife
- Michael Murphy Home Furnishing
- Michael Page
- Midleton Park Hotel
- Mitie Group PLC
- Monaghan Mushrooms
- Monroe Recruitment
- Morgan McKinley
- Morrison Hotel
- Morson Group
- Mount Juliet
- Mount Wolseley Hotel Spa & Golf Resort
- Mowlam Healthcare
- Mss Recruitment
- Muiriosa Foundation
- Murdock Builders’ Merchants Limited
- Murphy & Sons Limited
- Musgrave Group plc