E-Commerce Security Consultants Providing varying levels of network security audits. http://www.ecsc.co.uk

Interrorem Security auditing and consultancy services. Remote audit, hacking and site penetration. http://interrorem.com/

Acros Security Slovenian business dedicated to locating security problems in network systems software and hardware. http://www.acros.si/

Ilion Security SA Ethical hacking and computer security training. Geneva, Switzerland. http://www.ilionsecurity.ch/en/

Data Cog Corporation Limited Penetration testing and other security consulting services, and IDS solution. Service and product information, company news and contact details. http://www.datacog.com/

the Henderson Group Provides information, reources, newsletters, and training information for computer security professionals and to IT and IS auditors. http://stuhenderson.com/