Investigate Services
- Provides investigation and surveillance services for private and business clients. Based in Kildare. Providing services internationally.
- http://www.investigateservice.com/

Eurocheck Security Consultants
- Services include intellectual property investigations, accident and disability, insurance fraud, and background enquiries.
- http://www.euro-check.net/

Castle Private Detective and Investigation Agency
- Offering private investigation advice. Includes details of services and a company profile.
- http://www.cda121.com

Protocol Security Services
- Dunshaughlin based agency specialising in investigations of insurance claims details services.
- http://www.protocolinvestigations.com

CIA
- Private detectives based in Athlone.
- http://www.cia.ie/