FreeCall 1800 GROUP 1. Group 1 Security is a national level supplier, specialising in Corporate Security, Supply and Install of CCTV/Alarms/Access Control Systems , Investigations, Asset Protection, Retail Logistics, Construction and Infrastructure Security, Distribution and Loss Prevention, Development of Security Policy & Procedures. Our head office is in Sydney but we have a strong national presence. We have been independently audited and certified against ISO9001:2008 Quality Management, ISO14001:2004 Environmental Management & AS/NZS4801:2001 Safety Management. Group 1 Security is a preferred supplier of the Australian Retail Association and represent some of the country's largest retailers as well as multiple high profile corporate clients.