Top Companies
- C&C Group
- C&D Foods
- CGI
- CRH
- CWS - Church World Service
- Cadence Design Systems, Inc
- Callinan Coaches
- Cambridge Education Group
- Canada Life - Canada Life Assurance Company
- Care Network Ireland
- Career Change
- Career Steps
- Career Vision Recruiters
- Carton House Hotel, Golf & Spa Resort - Pyramid Hotel Group
- Caulfield Transport Ltd
- Centra
- Centum Engineering
- Chadwicks Group
- Chanel Ireland
- Chez Max
- Choice Hotels International
- Choice People (Facilitas Group)
- Choice Stores
- Circet
- Circit
- Circle K - Circle K Ireland Holding Limited
- Circle Voluntary Housing Association - Circle VHA
- City Education Group
- Clancy Construction
- Clarecare
- Clayton Hotel Charlemont (Dalata Hotel Group plc.)
- Clifden Recruitment
- Cliff
- Colgate Palmolive
- Colin Burke Electrical
- CollierBroderick Management Consultants
- Combilift Material Handling Solutions
- Comer Homes Group
- Comfort Home Care
- Comfort Keepers Homecare
- Connected Health
- Connected Health - (Life Science Recruitment Ltd)
- Conscia Training
- Cope Galway
- Costcutter
- Covalen Solutions (PCL Group)
- Crewlink
- Cross Agricultural Engineering
- Crowne Plaza Hotels Ireland - Tifco Ltd
- Cunningham Contracts
- Curam Care Homes
- Currys