• SAP Software Solutions
• SCL Sales Ltd
• SGS Ireland
• SMT Fund Services(Ireland) Ltd
• SONAS RECRUITMENT
• SRG Engineering
• SSA Recruitment Group
• STL Logistics Limerick
• Sabeo Technologies Ltd
• Saint John of God Community Services
• Sam Dennigan & Co.
• Sanderson Recruitment
• Sanmina Corporation
• Savvi Recruitment Limited
• Schoolhouse Hotel
• Seafield Hotel & Spa Resort
• Securitas Security Services Ireland
• Senitor IT Recruitment
• Servier Industries
• Shannon Springs Hotel
• Shearwater Hotel
• Sheraton (Marriott International, Inc.)
• Sherlock Recruitment Ltd
• Sigmar Recruitment - Sigmar Recruitment Consultants
• Skechers Ireland
• Skillfinder International
• Sky Handling Partner
• Slieve Russell Hotel
• Smiles Dental (Xeon Dental Services Limited)
• Smyths Toys HQ UC
• Sodexo
• Solas Consulting Group
• Specsavers Optical Group Limited
• Spencer Hotel Dublín City
• Spirit Motor Group
• Sports Surgery Clinic
• St Michael's House
• St Patrick’s Mental Health Services (SPMHS)
• St. Catherine's Association
• St. James Hospital Foundation
• Stack and.co
• Staffline Group PLC
• Starbucks Ireland
• Stelfox It Recruitment
• Stericycle, Inc.
• Stewarts Care Ltd
• Stryker
• Suir Engineering
• Sunbeam Media
• Superior Express Ltd
• Suretank Group
• Susquehanna International Group, LLP